An Intelligent Pneumatic Muscle Actuated Exoskeleton For Robotic Gait Rehabilitation

Download An Intelligent Pneumatic Muscle Actuated Exoskeleton For Robotic Gait Rehabilitation full books in PDF, epub, and Kindle. Read online An Intelligent Pneumatic Muscle Actuated Exoskeleton For Robotic Gait Rehabilitation ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!

An Intelligent Pneumatic Muscle Actuated Exoskeleton for Robotic Gait Rehabilitation

Author : Jinghui Brian Cao
Publisher :
ISBN 13 :
Total Pages : 177 pages
Book Rating : 4.:/5 (14 download)

DOWNLOAD NOW!

Book Synopsis An Intelligent Pneumatic Muscle Actuated Exoskeleton for Robotic Gait Rehabilitation by : Jinghui Brian Cao

Download or read book An Intelligent Pneumatic Muscle Actuated Exoskeleton for Robotic Gait Rehabilitation written by Jinghui Brian Cao and published by . This book was released on 2017 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gait disorder is a commonly lasting side-effect for stroke and spinal cord injury survivors. Conventional gait rehabilitation trainings provided by therapists are largely dependent on their experience. Such trainings are often challenging for the therapists due to their physically intensive nature. Hence, consistent optimal results cannot always be achieved. Robotic technologies were thus introduced to automate the gait rehabilitation trainings, in order to emancipate therapists from physically intensive work as well as making rehabilitation training more accessible to patients Research have shown that task specific repetitive training and patients' active participation can lead to more effective gait rehabilitation. However, conventional trajectory tracking controlled robotic gait rehabilitation could change the dynamics of the walking task, reduce inputs from patients' motor systems, lower their physical effort and thus result less effective outcomes. Therefore, it is important to ensure that the robotic gait rehabilitation training is more analogous to actual human walking and maximize the training subject's active participation. The goal of this thesis is the development of a new robotic GAit Rehabilitation EXoskeleton (GAREX) that is compliant with the current neurorehabilitation theories in order to achieve optimised robotic gait rehabilitation. Such goal is tackled systematically in terms of both robotic design and control algorithm research. GAREX was designed to provide safe, task specific gait rehabilitation to stroke patients. Pneumatic muscles (PM) actuators were used to drive GAREX, due to their high power/force to weight ratio and intrinsic compliance. Specially, the intrinsic compliance can create a wide range of dynamic environment for control strategy development. However, the negative correlation between PM's force output and contracting length means a trade-off between torque and range of motion specifications of the actuation system. The design of GAREX comprehensively addressed torque and joint range of motion requirements imposed by task-specific gait rehabilitation training. Control strategies are the key to implement the training theories into robotic operations. In order to encourage patients' active participation, the robot should be controlled to supply just enough guidance/assistance a patient needs to complete treadmill based gait training. To implement assist-as-needed (AAN) concept, the robot should also be able to assess the extent of active participation and change the assistance provided accordingly. The intrinsic compliance of GAREX's PM actuation system could be utilized to change the level of guidance. A new multi-input-multi-output (MIMO) sliding model (SM) controller was developed to adjust assistance while guiding training subjects to walk in predefined gait trajectories. Technical experimental validation indicated that controller was able to track reference gait trajectories and the desired joint space average antagonistic PM pressures. A study with 12 healthy subjects revealed strong statistical evidence that the proposed MIMO SM controller is able to vary the compliance of the exoskeleton To online assess the training patient's active participation, a fuzzy logic compliance adaptation (FLCA) controller is proposed. The FLCA algorithm utilizes the robotic kinematics and human- exoskeleton interaction torque of the knee joint, to estimate the extent of the patient's active participation. Based on the estimation, the desired compliance level can be automatically adjusted with higher compliance for more active participation and vice versa. Nevertheless, the FLCA algorithm does not require models of the exoskeleton and biomechanics of the training subject, which means less preparation work and easier implementation. Performance of the FLCA control system was validated with three healthy subjects who simulated different extents of participation. The FLCA control system could successfully adapt the joint actuation compliance accordingly in all the scenarios.

Exoskeleton Robots for Rehabilitation and Healthcare Devices

Author : Manuel Cardona
Publisher : Springer Nature
ISBN 13 : 9811547327
Total Pages : 103 pages
Book Rating : 4.8/5 (115 download)

DOWNLOAD NOW!

Book Synopsis Exoskeleton Robots for Rehabilitation and Healthcare Devices by : Manuel Cardona

Download or read book Exoskeleton Robots for Rehabilitation and Healthcare Devices written by Manuel Cardona and published by Springer Nature. This book was released on 2020-05-26 with total page 103 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses cutting-edge topics in robotics and related technologies for rehabilitation, covering basic concepts and providing the reader with the information they need to solve various practical problems. Intended as a reference guide to the application of robotics in rehabilitation, it covers e.g. musculoskeletal modelling, gait analysis, biomechanics, robotics modelling and simulation, sensors, wearable devices, and the Internet of Medical Things.

Interfacing Humans and Robots for Gait Assistance and Rehabilitation

Author : Carlos A. Cifuentes
Publisher : Springer Nature
ISBN 13 : 3030796302
Total Pages : 384 pages
Book Rating : 4.0/5 (37 download)

DOWNLOAD NOW!

Book Synopsis Interfacing Humans and Robots for Gait Assistance and Rehabilitation by : Carlos A. Cifuentes

Download or read book Interfacing Humans and Robots for Gait Assistance and Rehabilitation written by Carlos A. Cifuentes and published by Springer Nature. This book was released on 2021-09-16 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: The concepts represented in this textbook are explored for the first time in assistive and rehabilitation robotics, which is the combination of physical, cognitive, and social human-robot interaction to empower gait rehabilitation and assist human mobility. The aim is to consolidate the methodologies, modules, and technologies implemented in lower-limb exoskeletons, smart walkers, and social robots when human gait assistance and rehabilitation are the primary targets. This book presents the combination of emergent technologies in healthcare applications and robotics science, such as soft robotics, force control, novel sensing methods, brain-computer interfaces, serious games, automatic learning, and motion planning. From the clinical perspective, case studies are presented for testing and evaluating how those robots interact with humans, analyzing acceptance, perception, biomechanics factors, and physiological mechanisms of recovery during the robotic assistance or therapy. Interfacing Humans and Robots for Gait Assistance and Rehabilitation will enable undergraduate and graduate students of biomedical engineering, rehabilitation engineering, robotics, and health sciences to understand the clinical needs, technology, and science of human-robot interaction behind robotic devices for rehabilitation, and the evidence and implications related to the implementation of those devices in actual therapy and daily life applications.

Wearable Robotics

Author : Jacob Rosen
Publisher : Academic Press
ISBN 13 : 0128146605
Total Pages : 551 pages
Book Rating : 4.1/5 (281 download)

DOWNLOAD NOW!

Book Synopsis Wearable Robotics by : Jacob Rosen

Download or read book Wearable Robotics written by Jacob Rosen and published by Academic Press. This book was released on 2019-11-16 with total page 551 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wearable Robotics: Systems and Applications provides a comprehensive overview of the entire field of wearable robotics, including active orthotics (exoskeleton) and active prosthetics for the upper and lower limb and full body. In its two major sections, wearable robotics systems are described from both engineering perspectives and their application in medicine and industry. Systems and applications at various levels of the development cycle are presented, including those that are still under active research and development, systems that are under preliminary or full clinical trials, and those in commercialized products. This book is a great resource for anyone working in this field, including researchers, industry professionals and those who want to use it as a teaching mechanism. Provides a comprehensive overview of the entire field, with both engineering and medical perspectives Helps readers quickly and efficiently design and develop wearable robotics for healthcare applications

Novel Bioinspired Actuator Designs for Robotics

Author : Philipp Beckerle
Publisher : Springer Nature
ISBN 13 : 3030408868
Total Pages : 122 pages
Book Rating : 4.0/5 (34 download)

DOWNLOAD NOW!

Book Synopsis Novel Bioinspired Actuator Designs for Robotics by : Philipp Beckerle

Download or read book Novel Bioinspired Actuator Designs for Robotics written by Philipp Beckerle and published by Springer Nature. This book was released on 2021-09-04 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses biologically inspired robotic actuators designed to offer improved robot performance and approaching human-like efficiency and versatility. It assesses biological actuation and control in the human motor system, presents a range of technical actuation approaches, and discusses potential applications in wearable robots, i.e., powered prostheses and exoskeletons. Gathering the findings of internationally respected researchers from various fields, the book provides a uniquely broad perspective on bioinspired actuator designs for robotics. Its scope includes fundamental aspects of biomechanics and neuromechanics, actuator and control design, and their application in (wearable) robotics. The book offers PhD students and advanced graduate students an essential introduction to the field, while providing researchers a cutting-edge research perspective.

Approaches to Minimally Actuated Exoskeleton Gait Development

Author : Bradley Wayne Perry
Publisher :
ISBN 13 :
Total Pages : 119 pages
Book Rating : 4.:/5 (18 download)

DOWNLOAD NOW!

Book Synopsis Approaches to Minimally Actuated Exoskeleton Gait Development by : Bradley Wayne Perry

Download or read book Approaches to Minimally Actuated Exoskeleton Gait Development written by Bradley Wayne Perry and published by . This book was released on 2016 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are 6.8 million people in the United States that have mobility disorders and must rely on the use of assistive devices to aid in locomotion \cite{kaye2000mobility}. The human body was designed for a particular bipedal locomotion pattern, and deviations from that method of locomotion can result in secondary injuries. Many of the current solutions for mobility disorders are primitive, such as crutches or canes if possible and wheelchairs when not. In recent years, more intelligent, robotic systems have been developed to aid this population that needs assistance walking. Among these new robotic solutions are robotic exoskeletons. Robotic exoskeletons have become a more popular rehabilitation tool in recent years, particularly for those with spinal cord injury. There are currently three robotic exoskeletons with US Food and Drug Administration approval for clinical use. One barrier to wider adoption is the cost of these devices. To reduce cost, a more minimal design was developed at the Human Engineering and Robotics Laboratory at the University of California with only two actuators at the hips and a semi-passive locking mechanism at the knee. While this design can help reduce the weight and cost, it introduces additional complexity to the gait development due to the lack of actuation. The gait development strategies discussed in this paper are inspired by clinical gait data collected from healthy subjects. After all, the ultimate goal of an exoskeleton system as a rehabilitation device is to rehabilitate the pilot to the point that the patient's gait is restored to a natural walking pattern and the device is no longer necessary. Using clinical gait data and biomechanical studies, several models are developed for the design considered. A kinematic model was developed to better understand the angular constraints during both single stance and double stance. A dynamic model was also developed that models the behaviour of the system for different phases of the gait. Finally all these models were linked together in a finite state machine to form a hybrid automaton. The finite state machine specifies the switching conditions for each state. One method for gait development is to design gaits that are tunable such that the gait practitioner can tune the gait to the pilot's comfort and rehabilitation needs. In this endeavour, a kinematic model is used to define the constraints of the double stance phase. The gaits are then generated using a quartic polynomial spline using the node parameters from the kinematic analysis. This method empowers the gait practitioner by using tuning parameters that they understand from gait rehabilitation literature. Another method for gait development is to use optimal gaits based on a hybrid automaton model of the system. The automaton implements three states or phases of the gait cycle including their associated dynamic models. Using this model, the gaits can be optimized for the torques necessary for these gaits under minimal input assumptions from the pilot in each of the phases. This optimization allows for a more detailed understanding of the system dynamics and an optimal gait given constraints of both the system and the gait cycle. Furthermore, the optimization method can be utilized as a gait generator that is tailored to each individual pilot, effectively reducing the workload of the gait practitioner.

Control Strategies for Robotic Exoskeletons to Assist Post-Stroke Hemiparetic Gait

Author : Julio Salvador Lora Millán
Publisher : Springer Nature
ISBN 13 : 3031576160
Total Pages : 154 pages
Book Rating : 4.0/5 (315 download)

DOWNLOAD NOW!

Book Synopsis Control Strategies for Robotic Exoskeletons to Assist Post-Stroke Hemiparetic Gait by : Julio Salvador Lora Millán

Download or read book Control Strategies for Robotic Exoskeletons to Assist Post-Stroke Hemiparetic Gait written by Julio Salvador Lora Millán and published by Springer Nature. This book was released on with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Design and Assist-as-needed Control of an Intrinsically Compliant Robotic Orthosis for Gait Rehabilitation

Author : Shahid Hussain
Publisher :
ISBN 13 :
Total Pages : 176 pages
Book Rating : 4.:/5 (824 download)

DOWNLOAD NOW!

Book Synopsis Design and Assist-as-needed Control of an Intrinsically Compliant Robotic Orthosis for Gait Rehabilitation by : Shahid Hussain

Download or read book Design and Assist-as-needed Control of an Intrinsically Compliant Robotic Orthosis for Gait Rehabilitation written by Shahid Hussain and published by . This book was released on 2012 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neurologic injuries, such as stroke and spinal cord injuries (SCI), cause damage to neural systems and motor function, which results in lower limb impairment and gait disorders. Subjects with gait disorders require specific training to regain functional mobility. Traditionally, manual physical therapy is used for the gait training of neurologically impaired subjects which has limitations, such as the excessive workload and fatigue of physical therapists. The rehabilitation engineering community is working towards the development of robotic devices and control schemes that can assist during the gait training. The initial prototypes of these robotic gait training orthoses use conventional, industrial actuators that are either extremely heavy or have high endpoint impedance (stiffness). Neurologically impaired subjects often suffer from severe spasms. These stiff actuators may produce forces in response to the undesirable motions, often causing pain or discomfort to patients. The control schemes used by the initial prototypes of robotic gait training orthoses also have a limited ability to provide seamless, adaptive, and customized robotic assistance. This requires new design and control methods to be developed to increase the compliance and adaptability of these automated gait training devices. This research introduces the development of a new robotic gait training orthosis that is intrinsically compliant. Novel, assist-as-needed (AAN) control strategies are proposed to provide adaptive and customized robotic assistance to subjects with different levels of neurologic impairments. The new robotic gait training orthosis has six degrees of freedom (DOFs), which is powered by pneumatic muscle actuators (PMA). The device provides naturalistic gait pattern and safe interaction with subjects during gait training. New robust feedback control schemes are proposed to improve the trajectory tracking performance of PMAs. A dynamic model of the device and a human lower limb musculoskeletal model are established to study the dynamic interaction between the device and subjects. In order to provide adaptive, customized robot assisted gait training and to enhance the subject's voluntary participation in the gait training process, two new control schemes are proposed in this research. The first control scheme is based on the impedance control law. The impedance control law modifies the robotic assistance based on the human subject's active joint torque contributions. The levels of robot compliance can be selected by the physical therapist during the impedance control scheme according to the disability level and stage of rehabilitation of neurologically impaired subjects. The second control scheme is proposed to overcome the shortcomings of impedance control scheme and to provide seamless adaptive, AAN gait training. The adaptive, AAN gait training scheme is based on the estimation of the disability level of neurologically impaired subjects based on the kinematic error and adapts the robotic assistance accordingly. All the control schemes have been evaluated on neurologically intact subjects and the results show that these control schemes can deliver their intended effects. Rigorous clinical trials with neurologically impaired subjects are required to prove the therapeutic efficacy of the proposed robotic orthosis and the adaptive gait training schemes. The concept of intrinsically compliant robotic gait training orthosis, together with the trajectory tracking and impedance control of robotic gait training orthosis are the important contributions of this research. The algorithms and models developed in this research are applicable to the development of other robotic devices for rehabilitation and assistive purposes. The major contribution of the research lies in the development of a seamless, adaptive AAN gait training strategy. The research will help in evolving the field of compliant actuation of rehabilitation robots along with the development of new control schemes for providing seamless, adaptive AAN gait training.

Intelligent Systems for Rehabilitation Engineering

Author : Roshani Raut
Publisher : John Wiley & Sons
ISBN 13 : 1119785634
Total Pages : 188 pages
Book Rating : 4.1/5 (197 download)

DOWNLOAD NOW!

Book Synopsis Intelligent Systems for Rehabilitation Engineering by : Roshani Raut

Download or read book Intelligent Systems for Rehabilitation Engineering written by Roshani Raut and published by John Wiley & Sons. This book was released on 2022-01-05 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: INTELLIGENT SYSTEMS FOR REHABILITATION ENGINEERING Encapsulates different case studies where technology can be used as assistive technology for the physically challenged, visually and hearing impaired. Rehabilitation engineering includes the development of technological solutions and devices to assist individuals with disabilities, while also supporting the recovery of the disabled who have lost their physical and cognitive functions. These systems can be designed and built to meet a wide range of needs that can help individuals with mobility, communication, vision, hearing, and cognition. The growing technological developments in machine learning, deep learning, robotics, virtual intelligence, etc., play an important role in rehabilitation engineering. Intelligent Systems for Rehabilitation Engineering focuses on trending research of intelligent systems in rehabilitation engineering which involves the design and development of innovative technologies and techniques including rehabilitation robotics, visual rehabilitation, physical prosthetics, brain computer interfaces, sensory rehabilitation, motion rehabilitation, etc. This groundbreaking book Provides a comprehensive reference covering different computer assistive techniques for the physically disabled, visually and hearing impaired. Focuses on trending research of intelligent systems in rehabilitation engineering which involves the design and development of innovative technologies and techniques. Provides insights into the role of intelligent systems in rehabilitation engineering. Audience Engineers and device manufacturers working in rehabilitation engineering as well as researchers in computer science, artificial intelligence, electronic engineering, who are working on intelligent systems.

Human Health Engineering

Author : Jean-Marie Aerts
Publisher : MDPI
ISBN 13 : 3039284088
Total Pages : 428 pages
Book Rating : 4.0/5 (392 download)

DOWNLOAD NOW!

Book Synopsis Human Health Engineering by : Jean-Marie Aerts

Download or read book Human Health Engineering written by Jean-Marie Aerts and published by MDPI. This book was released on 2020-03-12 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this Special Issue on human health engineering, we invited submissions exploring recent contributions to the field of human health engineering, which is the technology used for monitoring the physical or mental health status of individuals in a variety of applications. Contributions focused on sensors, wearable hardware, algorithms, or integrated monitoring systems. We organized the different papers according to their contributions to the main aspects of the monitoring and control engineering scheme applied to human health applications, including papers focusing on measuring/sensing physiological variables, contributions describing research on the modelling of biological signals, papers highlighting health monitoring applications, and finally examples of control applications for human health. In comparison to biomedical engineering, the field of human health engineering also covers applications on healthy humans (e.g., sports, sleep, and stress) and thus not only contributes to develop technology for curing patients or supporting chronically ill people, but also more generally for disease prevention and optimizing human well-being.

Exoskeletons in Rehabilitation Robotics

Author : Eduardo Rocon
Publisher : Springer
ISBN 13 : 3642176593
Total Pages : 150 pages
Book Rating : 4.6/5 (421 download)

DOWNLOAD NOW!

Book Synopsis Exoskeletons in Rehabilitation Robotics by : Eduardo Rocon

Download or read book Exoskeletons in Rehabilitation Robotics written by Eduardo Rocon and published by Springer. This book was released on 2011-02-02 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: The new technological advances opened widely the application field of robots. Robots are moving from the classical application scenario with structured industrial environments and tedious repetitive tasks to new application environments that require more interaction with the humans. It is in this context that the concept of Wearable Robots (WRs) has emerged. One of the most exciting and challenging aspects in the design of biomechatronics wearable robots is that the human takes a place in the design, this fact imposes several restrictions and requirements in the design of this sort of devices. The key distinctive aspect in wearable robots is their intrinsic dual cognitive and physical interaction with humans. The key role of a robot in a physical human–robot interaction (pHRI) is the generation of supplementary forces to empower and overcome human physical limits. The crucial role of a cognitive human–robot interaction (cHRI) is to make the human aware of the possibilities of the robot while allowing them to maintain control of the robot at all times. This book gives a general overview of the robotics exoskeletons and introduces the reader to this robotic field. Moreover, it describes the development of an upper limb exoskeleton for tremor suppression in order to illustrate the influence of a specific application in the designs decisions.

Advanced Computational Intelligence in Healthcare-7

Author : Ilias Maglogiannis
Publisher : Springer Nature
ISBN 13 : 3662611147
Total Pages : 169 pages
Book Rating : 4.6/5 (626 download)

DOWNLOAD NOW!

Book Synopsis Advanced Computational Intelligence in Healthcare-7 by : Ilias Maglogiannis

Download or read book Advanced Computational Intelligence in Healthcare-7 written by Ilias Maglogiannis and published by Springer Nature. This book was released on 2020-03-23 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents state-of-the-art works and systematic reviews in the emerging field of computational intelligence (CI) in electronic health care. The respective chapters present surveys and practical examples of artificial intelligence applications in the areas of Human-Machine Interface (HMI) and affective computing, machine learning, big health data and visualization analytics, computer vision and medical image analysis. The book also addresses new and emerging topics in CI for health care such as the utilization of Social Media (SM) and the introduction of new intelligent paradigms in the security and privacy domains, which are critical for the health sector. The chapters, while of course not exhaustively addressing all the possible aspects of the aforementioned areas, are indicative of the dynamic nature of interdisciplinary research being pursued. Accordingly, the book is intended not only for researchers in the respective fields, but also for medical and administrative personnel working in the health sector, as well as managers and stakeholders responsible for making strategic decisions and defining public health policies.

Development of a Lightweight and High Strength Underactuated Lower Limb Robot Exoskeleton for Gait Rehabilitation

Author : Fahad Hussain
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (143 download)

DOWNLOAD NOW!

Book Synopsis Development of a Lightweight and High Strength Underactuated Lower Limb Robot Exoskeleton for Gait Rehabilitation by : Fahad Hussain

Download or read book Development of a Lightweight and High Strength Underactuated Lower Limb Robot Exoskeleton for Gait Rehabilitation written by Fahad Hussain and published by . This book was released on 2024 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of robot-assisted physical rehabilitation and robotics technology for providing support to the elderly population is rapidly evolving. Lower limb robot aided rehabilitation and assistive technology have been a focus for the engineering community over the last three decades as several robotic lower limb exoskeletons have been proposed in the literature as well as some being commercially available. One of the most important aspects of developing exoskeletons is the selection of the appropriate material. Strength to weight ratio is the most important factor to be considered before selection of a manufacturing material. The material selection strongly influences the overall weight and performance of the exoskeleton robot. In addition to material selection the type of mechanism and the actuation strongly effect the overall weight of the lower limb robotic exoskeleton. Most of the lower limb exoskeleton provided in the literature use a parallel mechanism, are properly actuated and either use aluminium or steel as their manufacturing materials. All these factors significantly increase the weight of the lower limb robot exoskeleton and make the device heavy, bulky, and uncomfortable for the wearer. Furthermore, an increase in weight contributes to a decrease of energy efficiency, reduces the energy efficiency of the final product, and increase the running cost of the designed robot devices. This thesis explores the wide-ranging potential of lower limb robot exoskeletons in the context of physical rehabilitation. Implementation and testing of a lightweight and high strength material without effecting the reliability was the main research objective of the present work. In this research, a linkage based under-actuated mechanism was used for the development of a lightweight design. Structural and mechanical load analysis of the mechanism was performed by using an advanced approach of finite element analysis. Three materials, namely structural steel, aluminium, and carbon reinforced fibre were compared as the manufacturing materials of the modelled mechanism. After that, a weight estimation was carried out for all three materials and the material which exhibits the best response under mechanical load analysis was selected. From the weight comparison, the carbon reinforced fibre provided the least weight for the digital twin of a lower limb exoskeleton. After material selection, the next step was the topology optimisation to further decrease the mass of the designed prototype without effecting the mechanical performance. The optimisation was carried out by using a multi-mode single objective genetic algorithm (GA) and a reduction of 30 % in the weight of the designed prototype was obtained. The selected material, which is carbon fibre, is a type of polymer material that is highly anisotropic, meaning it shows different material behaviour in different orientations of applied force. The next stage of the research work was the material characterization of the manufacturing material, which was carried out both analytically and experimentally. For defining the optimal criteria for fiber orientation, Hashin's Failure Criteria is considered, and experimental work is performed to determine the most suitable fibre orientation. The material monotonic tensile properties were experimentally determined by experimental work and used to select a suitable orientation to manufacture a physical prototype model of the lower limb robot exoskeleton. After that the manufacturing process was carried out which is divided into three main steps. The first step was the use of the suitable lightweight and high strength material, which was selected by weight comparison in the design stage. The second step was the use of a single actuator to actuate the whole mechanical system and the final step was the use fabrication method to get a strong and reliable structure. Shaping of the different exoskeleton parts was carried out by CNC milling and parts were assembled to build a robotic prototype. A DC motor was used to actuate the complete prototype, which includes hip, knee, and ankle joints. In the end, a reliability analysis was carried out by using a machine learning based approach. A machine learning framework was developed for time-dependent reliability analysis of the developed robot. A neural network algorithm was designed to estimate the time-dependent reliability of the joint displacement and the positions of the end-effector first. From the above methodology, a lightweight and high strength lower limb robot exoskeleton was just not only conceptualized but a significant work was done to get a physical model starting from the material selection and concluding with the fabrication of a physical prototype. The reliability analysis gives an overview of the mechanism safety as a function of joint displacement. The designed prototype of carbon reinforced fibre was four times lighter in weight as compared to steel and three times lighter than aluminium, which is expected to give the wearer a comfortable wearing experience and improves the overall physical rehabilitation experience for the patients.

Soft Robotics in Rehabilitation

Author : Amir Jafari
Publisher : Academic Press
ISBN 13 : 0128185392
Total Pages : 282 pages
Book Rating : 4.1/5 (281 download)

DOWNLOAD NOW!

Book Synopsis Soft Robotics in Rehabilitation by : Amir Jafari

Download or read book Soft Robotics in Rehabilitation written by Amir Jafari and published by Academic Press. This book was released on 2021-02-20 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soft Robotics in Rehabilitation explores the specific branch of robotics dealing with developing robots from compliant and flexible materials. Unlike robots built from rigid materials, soft robots behave the way in which living organs move and adapt to their surroundings and allow for increased flexibility and adaptability for the user. This book is a comprehensive reference discussing the application of soft robotics for rehabilitation of upper and lower extremities separated by various limbs. The book examines various techniques applied in soft robotics, including the development of soft actuators, rigid actuators with soft behavior, intrinsically soft actuators, and soft sensors. This book is perfect for graduate students, researchers, and professional engineers in robotics, control, mechanical, and electrical engineering who are interested in soft robotics, artificial intelligence, rehabilitation therapy, and medical and rehabilitation device design and manufacturing. - Outlines the application of soft robotic techniques to design platforms that provide rehabilitation therapy for disabled persons to help improve their motor functions - Discusses the application of soft robotics for rehabilitation of upper and lower extremities separated by various limbs - Offers readers the ability to find soft robotics devices, methods, and results for any limb, and then compare the results with other options provided in the book

Development of Human-inspired Robotic Exoskeleton (HuREx) Designed for Lower-limb Gait Rehabilitation for Stroke Patients

Author : Kazuto Kora
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.:/5 (98 download)

DOWNLOAD NOW!

Book Synopsis Development of Human-inspired Robotic Exoskeleton (HuREx) Designed for Lower-limb Gait Rehabilitation for Stroke Patients by : Kazuto Kora

Download or read book Development of Human-inspired Robotic Exoskeleton (HuREx) Designed for Lower-limb Gait Rehabilitation for Stroke Patients written by Kazuto Kora and published by . This book was released on 2014 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stroke is one of the leading cause of physical disability in New Zealand and many suffer paralysis to their limbs. Unfortunately, fewer than 50% of survivors regaining their independence after 6 months particularly due to the inability to walk properly. One of the reason for the slow recovery of the gait function is that the current rehabilitation technique used is labour intensive and time consuming for the therapists and difficult to perform it effectively. In order to improve the gait rehabilitation process, robot assisted gait rehabilitation has gained much interest over the past years. There have been many prototypes and commercial products for the robot assisted rehabilitation, but many had limitations. One of which is being bulky and had uncomfortable attachment for the patients. Improper attachment not only create uncomfortable feeling and pain for the patient but also causes human-robot axis misalignment which could lead to an injury with long term use. Another limitation is the lack of mechanical compliance which is the key to improve the safety of the operation and comfort for the patient. In order to address the limitations identified, a new robot orthosis, Human-inspired Robotic Exoskeleton (HuREx) was developed. HuREx consists of a compact exoskeleton parts custom fit for each individual patient manufactured using a rapid prototyping technique. Pneumatic Muscle Actuators (PMA) were used as they exhibit natural compliance and configured antagonistically. The design of the orthosis and the actuation mechanism made the system highly nonlinear. Therefore, an advanced model-based feedforward (FF) controller was designed and implemented to achieve the speed and accuracy of the response required. Many experiments were carried out to observe the performance and verify the proof of concept. The contributions of this research are the development of new robotic exoskeleton device designed to be light weight, comfortable and safe to use for gait rehabilitation for stroke patients, which were lacking in the existing devices. Another contribution is the establishment of new manufacturing technique that allow custom exoskeleton component for each individual patient. Finally the development of advanced model-based FF controller that achieves fast and accurate tracking performance.

Wearable Robots

Author : José L. Pons
Publisher : John Wiley & Sons
ISBN 13 : 0470987650
Total Pages : 358 pages
Book Rating : 4.4/5 (79 download)

DOWNLOAD NOW!

Book Synopsis Wearable Robots by : José L. Pons

Download or read book Wearable Robots written by José L. Pons and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: A wearable robot is a mechatronic system that is designed around the shape and function of the human body, with segments and joints corresponding to those of the person it is externally coupled with. Teleoperation and power amplification were the first applications, but after recent technological advances the range of application fields has widened. Increasing recognition from the scientific community means that this technology is now employed in telemanipulation, man-amplification, neuromotor control research and rehabilitation, and to assist with impaired human motor control. Logical in structure and original in its global orientation, this volume gives a full overview of wearable robotics, providing the reader with a complete understanding of the key applications and technologies suitable for its development. The main topics are demonstrated through two detailed case studies; one on a lower limb active orthosis for a human leg, and one on a wearable robot that suppresses upper limb tremor. These examples highlight the difficulties and potentialities in this area of technology, illustrating how design decisions should be made based on these. As well as discussing the cognitive interaction between human and robot, this comprehensive text also covers: the mechanics of the wearable robot and it’s biomechanical interaction with the user, including state-of-the-art technologies that enable sensory and motor interaction between human (biological) and wearable artificial (mechatronic) systems; the basis for bioinspiration and biomimetism, general rules for the development of biologically-inspired designs, and how these could serve recursively as biological models to explain biological systems; the study on the development of networks for wearable robotics. Wearable Robotics: Biomechatronic Exoskeletons will appeal to lecturers, senior undergraduate students, postgraduates and other researchers of medical, electrical and bio engineering who are interested in the area of assistive robotics. Active system developers in this sector of the engineering industry will also find it an informative and welcome resource.

Dynamic Stabilisation of the Biped Lucy Powered by Actuators with Controllable Stiffness

Author : Bram Vanderborght
Publisher : Springer Science & Business Media
ISBN 13 : 3642134165
Total Pages : 290 pages
Book Rating : 4.6/5 (421 download)

DOWNLOAD NOW!

Book Synopsis Dynamic Stabilisation of the Biped Lucy Powered by Actuators with Controllable Stiffness by : Bram Vanderborght

Download or read book Dynamic Stabilisation of the Biped Lucy Powered by Actuators with Controllable Stiffness written by Bram Vanderborght and published by Springer Science & Business Media. This book was released on 2010-10-04 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reports on the developments of the bipedal walking robot Lucy. Special about it is that the biped is not actuated with the classical electrical drives but with pleated pneumatic artificial muscles. In an antagonistic setup of such muscles both the torque and the compliance are controllable. From human walking there is evidence that joint compliance plays an important role in energy efficient walking and running. Moreover pneumatic artificial muscles have a high power to weight ratio and can be coupled directly without complex gearing mechanism, which can be beneficial towards legged mechanisms. Additionally, they have the capability of absorbing impact shocks and store and release motion energy. This book gives a complete description of Lucy: the hardware, the electronics and the software. A hybrid simulation program, combining the robot dynamics and muscle/valve thermodynamics, has been written to evaluate control strategies before implementing them in the real biped.