On Motion Control of Linear Incremental Hydraulic Actuators

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Publisher : Linköping University Electronic Press
ISBN 13 : 9176854256
Total Pages : 91 pages
Book Rating : 4.1/5 (768 download)

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Book Synopsis On Motion Control of Linear Incremental Hydraulic Actuators by : Martin Hochwallner

Download or read book On Motion Control of Linear Incremental Hydraulic Actuators written by Martin Hochwallner and published by Linköping University Electronic Press. This book was released on 2017-10-24 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: Linear Incremental Hydraulic Actuators combine one or more short-stroke cylinders, and two or more engaging/disengaging mechanisms into one actuator with long, medium, or even unlimited stroke length. The motion of each single short-stroke actuator concatenated by the engaging/disengaging mechanisms forms the motion of the linear incremental hydraulic actuator. The patterns of how these motions are concatenated form the gaits of a specific linear incremental hydraulic actuator. Linear incremental hydraulic actuators may have more than one gait. In an application, the gaits may be combined to achieve optimal performance at various operating points. The distinguishing characteristic of linear incremental hydraulic actuators is the incremental motion. The term incremental actuator is seen as analogous to the incremental versus absolute position sensor. Incremental actuators realize naturally relative positioning. Incremental motion means also that the behavior does not depend on an absolute position but only on the relative position within a cycle or step. Incremental actuators may realize discrete incremental or continuous incremental motion. Discrete incremental actuators can only approach discrete positions, whereby stepper drives are one prominent example. In contrast, continuous incremental actuators may approach any position. Linear electric motors are one example of continuous incremental actuators. The actuator has no inherent limitation in stroke length, as every step or cycle adds only to the state at the beginning of the step or cycle and does not depend on the absolute position. This led to the alternative working title Hydraulic Infinite Linear Actuator. Linear incremental hydraulic actuator provides long stroke, high force, and linear motion and has the potential to decrease the necessary resource usage,minimize environmental impact, e.g. from potential oil spillage,extend the range of feasible products: longer, stiffer, better, etc. This thesis presents an analysis of the characteristics and properties of linear incremental hydraulic actuators as well as the gaits and possible realizations of some gaits. The gait for continuous, smooth motion with two cylinders is comprehensively studied and a control concept for the tracking problem is proposed. The control concept encapsulates the complexity of the linear incremental hydraulic actuator so that an application does not have to deal with it. One other gait, the ballistic gait, which realizes fast, energy-efficient motion, enabling energy recuperation is studied.

Fluid Power Pumps and the Electrification

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Publisher : Linköping University Electronic Press
ISBN 13 : 9179298303
Total Pages : 92 pages
Book Rating : 4.1/5 (792 download)

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Book Synopsis Fluid Power Pumps and the Electrification by : Samuel Kärnell

Download or read book Fluid Power Pumps and the Electrification written by Samuel Kärnell and published by Linköping University Electronic Press. This book was released on 2020-05-25 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: More and more vehicles are being electrified. Mobile working machines and heavy trucks are not excluded, and these machines are often hydraulically intense. Electrification entails new requirements for the hydraulic system and its components, and these requirements must be taken into consideration. Hydraulic systems have looked similar for a long time, but now there is an opportunity to advance. Many things change when a diesel engine is replaced with an electric motor. For example, variable-speed control becomes more relevant, electric regeneration becomes possible, and the use of multiple prime movers becomes an attractive alternative. The noise from the hydraulic system will also be more noticeable when the diesel engine is gone. Furthermore, the introduction of batteries to the system makes the energy more valuable, since batteries are heavy and costly compared to a diesel tank. Therefore, it is commercially viable to invest in the hydraulic system. This thesis revolves around the heart of the hydraulic system, that also is the root of all evil. That is the pump. Traditionally, a pump has had either a fixed displacement or a continuously variable displacement. Here, the focus is on something in between, namely a pump with discrete displacement. The idea of discrete displacement is far from unique, but has not been investigated in detail in combination with variable speed before. In this thesis, a novel design for a quiet pump with discrete displacement is presented and analysed. The results show that discrete displacement is relevant from an energy perspective for machines working extensively at high pressure levels and with low flow rates, and that a few discrete values are enough to make a significant difference. However, for other cycles, the possible energy gains are very limited, but the discrete displacement can be a valuable feature if downsizing the electric machine is of interest.

Engineering Fluid Dynamics

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Author :
Publisher : MDPI
ISBN 13 : 3038426687
Total Pages : 211 pages
Book Rating : 4.0/5 (384 download)

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Book Synopsis Engineering Fluid Dynamics by : Bjørn H. Hjertager

Download or read book Engineering Fluid Dynamics written by Bjørn H. Hjertager and published by MDPI. This book was released on 2018-04-06 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Engineering Fluid Dynamics" that was published in Energies

INDEPENDENT METERING SYSTEM WITH ELECTRO-HYDRAULIC CONTROL

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Publisher : Springer Nature
ISBN 13 : 9819963729
Total Pages : 159 pages
Book Rating : 4.8/5 (199 download)

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Book Synopsis INDEPENDENT METERING SYSTEM WITH ELECTRO-HYDRAULIC CONTROL by : Min Cheng

Download or read book INDEPENDENT METERING SYSTEM WITH ELECTRO-HYDRAULIC CONTROL written by Min Cheng and published by Springer Nature. This book was released on 2024 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book shows an independent metering electro-hydraulic control system involving its flexible hardware layouts, complex software control, representative products and applications. The book includes one chapter introducing the background and motivation of the independent metering electro-hydraulic control system. It also includes one chapter to summarize various hardware layouts involving the utilized hydraulic components and circuits, as well as analyze their advantages and disadvantages. It emphatically consists of four chapters demonstrating the detailed multivariable control strategies from three levels: load, valve and pump, together with fault-tolerant control under the fault condition. It includes a last chapter, in which products of independent metering control valve and their applications in some typical heavy-duty mobile machinery are collective works of reviews illustrative of recent advances. This book is interesting and useful to a wide readership in the various fields of fluid power transmission and control.

Principles of Hydraulic Systems Design, Second Edition

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Publisher : Momentum Press
ISBN 13 : 1606504533
Total Pages : 292 pages
Book Rating : 4.6/5 (65 download)

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Book Synopsis Principles of Hydraulic Systems Design, Second Edition by : Peter Chapple

Download or read book Principles of Hydraulic Systems Design, Second Edition written by Peter Chapple and published by Momentum Press. This book was released on 2014-12-31 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fluid power systems are manufactured by many organizations for a very wide range of applications, embodying different arrangements of components to fulfill a given task. Hydraulic components are manufactured to provide the control functions required for the operation of a wide range of systems and applications. This second edition is structured to give an understanding of: • Basic types of components, their operational principles and the estimation of their performance in a variety of applications. • A resume of the flow processes that occur in hydraulic components. • A review of the modeling process for the efficiency of pumps and motors. This new edition also includes a complete analysis for estimating the mechanical loss in a typical hydraulic motor; how circuits can be arranged using available components to provide a range of functional system outputs, including the analysis and design of closed loop control systems and some applications; a description of the use of international standards in the design and management of hydraulic systems; and extensive analysis of hydraulic circuits for different types of hydrostatic power transmission systems and their application.

Advances in Energy Storage

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Publisher : John Wiley & Sons
ISBN 13 : 1119239354
Total Pages : 932 pages
Book Rating : 4.1/5 (192 download)

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Book Synopsis Advances in Energy Storage by : Andreas Hauer

Download or read book Advances in Energy Storage written by Andreas Hauer and published by John Wiley & Sons. This book was released on 2022-03-28 with total page 932 pages. Available in PDF, EPUB and Kindle. Book excerpt: ADVANCES IN ENERGY STORAGE An accessible reference describing the newest advancements in energy storage technologies Advances in Energy Storage: Latest Developments from R&D to the Market is a comprehensive exploration of a wide range of energy storage technologies that use the fundamental energy conversion method. The distinguished contributors discuss the foundational principles, common materials, construction, device operation, and system level performance of the technology, as well as real-world applications. The book also includes examinations of the industry standards that apply to energy storage technologies and the commercial status of various kinds of energy storage. The book has been written by accomplished leaders in the field and address electrochemical, chemical, thermal, mechanical, and superconducting magnetic energy storage. They offer insightful treatments of relevant policy instruments and posit likely future advancements that will support and stimulate energy storage. Advances in Energy Storage also includes: A thorough introduction to electrochemical, electrical, and super magnetic energy storage, including foundational electrochemistry concepts used in modern power sources A comprehensive exploration of mechanical energy storage and pumped hydro energy storage Practical discussions of compressed air energy storage and flywheels, including the geology, history, and development of air energy storage In-depth examinations of thermal energy storage, including new material developments for latent and thermochemical heat storage Perfect for practicing electrical engineers, mechanical engineers, and materials scientists, Advances in Energy Storage: Latest Developments from R&D to the Market is also an indispensable reference for researchers and graduate students in these fields.

Mobile Working Machines

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Publisher : SAE International
ISBN 13 : 0768099544
Total Pages : 470 pages
Book Rating : 4.7/5 (68 download)

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Book Synopsis Mobile Working Machines by : Marcus Geimer

Download or read book Mobile Working Machines written by Marcus Geimer and published by SAE International. This book was released on 2020-12-31 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mobile Working Machines are defined by three characteristics. These machines have a cer-tain task of doing a working process, they are mobile, and they have a signifi cant energy share in their working functions. The machines should be as productive, efficient and of high quality as possible. All these machines in the fi eld of agriculture, forestry, construction, logistics, municipal sector, and in other special applications work in different applications. But, many technologies placed in the machines are the same, similar or comparable; therefore, different branches can learn from each other. Mobile Working Machines provides a wide and deep view into the technologies used in these machines. Appropriate for new engineers as well as those who wish to increase their knowledge in this field, this book brings together all the latest research and development into one place.

Lubrication Degradation

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Publisher : CRC Press
ISBN 13 : 1000529398
Total Pages : 198 pages
Book Rating : 4.0/5 (5 download)

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Book Synopsis Lubrication Degradation by : Sanya Mathura

Download or read book Lubrication Degradation written by Sanya Mathura and published by CRC Press. This book was released on 2021-12-14 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book combines the topics of Root Cause Analysis (RCA) and Lubrication Degradation Mechanisms (LDM) with the goal of allowing the reader to develop the disciplined thought process for getting to the root causes of each of the degradation mechanisms. This new way of thinking can be applied to other areas within their facility to mitigate or eliminate any future recurrence. Lubrication Degradation: Getting into the Root Causes strives to break down the complex topic of Lubrication Degradation into its six most common failure mechanisms. It presents the mechanisms as manageable components and then teaches the reader how to identify the typical root causes associated with each failure mechanism. The main aim of this book is to get the audience to look past the physical root causes and really unearth the underlying human and/or systemic roots to prevent recurrence of these types of failures. The book offers a field-proven and practical root cause analysis approach. An ideal practical book for industry professionals involved with Plant Operations, Engineering, Management, Maintenance, Reliability, Quality, and also useful for Technicians.

Advances in Hydraulic and Pneumatic Drives and Control 2020

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Publisher : Springer Nature
ISBN 13 : 3030595099
Total Pages : 454 pages
Book Rating : 4.0/5 (35 download)

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Book Synopsis Advances in Hydraulic and Pneumatic Drives and Control 2020 by : Jarosław Stryczek

Download or read book Advances in Hydraulic and Pneumatic Drives and Control 2020 written by Jarosław Stryczek and published by Springer Nature. This book was released on 2020-10-18 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reports on cutting-edge research and technical achievements in the field of hydraulic drives. The chapters, selected from contributions presented at the International Scientific-Technical Conference on Hydraulic and Pneumatic Drives and Controls, NSHP 2020, held on October 21-23, 2020, in Trzebieszowice, Poland, cover a wide range of topics such as theoretical advances in fluid technology, work machines in mining, construction, marine and manufacturing industry, and practical issues relating to the application and operation of hydraulic drives. Further topics include: safety and environmental issues associated with the use of machines with hydraulic drive, and new materials in design of hydraulic components. A special emphasis is given to new solutions for hydraulic components and systems as well as to the identification of phenomena and processes occurring during the operation of hydraulic and pneumatic systems.

Proceedings of the Joint International Conference: 10th Textile Conference and 4th Conference on Engineering and Entrepreneurship

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Publisher : Springer Nature
ISBN 13 : 3031489330
Total Pages : 559 pages
Book Rating : 4.0/5 (314 download)

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Book Synopsis Proceedings of the Joint International Conference: 10th Textile Conference and 4th Conference on Engineering and Entrepreneurship by : Genti Guxho

Download or read book Proceedings of the Joint International Conference: 10th Textile Conference and 4th Conference on Engineering and Entrepreneurship written by Genti Guxho and published by Springer Nature. This book was released on 2024-01-09 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings book encompass a wide range of significant topics within the realms of Technologies, Engineering, Management, and Production, Entrepreneurship, Materials, Textiles, Fashion, and more. The book delves into various areas of Energetics, exploring aspects such as power production, solar power, wind turbines, advanced energetics technologies, energy resource efficiency, global warming and emissions, clean and renewable energies, as well as economic development, global warming, and environmental protections. The Constructions and Transport section features discussions on numerical methods for data manipulation, construction science and technology, transport systems, modeling of transport systems, intelligent transport, traffic management and safety. The Materials segment addresses materials science and application, biopolymers and biotechnology, metallic and composite materials, metallurgical engineering, recycling, manufacturing, and processing of various materials such as paper, plastics, rubber, glass, ceramics, and more. Management and Production topics include technology management, logistic and supply chain management, total quality management, knowledge and innovation management, financial management, marketing research and strategy, industrial marketing, operational research, project management, as well as information technology in enterprises, e-activities, and e-commerce. The book also features an extensive section dedicated to Textiles, covering textile processing and testing, technological advances in the textile industry, ecology and environment in textile production, fiber physics and textile mechanics, finishing, dyeing, and treatment techniques, modeling and simulation, smart and interactive textiles, technical and protective textiles, textile design, fashion, and garment manufacturing, innovations in textile education, as well as leather and footwear technologies.

2016 International Symposium on Experimental Robotics

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Publisher : Springer
ISBN 13 : 3319501151
Total Pages : 858 pages
Book Rating : 4.3/5 (195 download)

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Book Synopsis 2016 International Symposium on Experimental Robotics by : Dana Kulić

Download or read book 2016 International Symposium on Experimental Robotics written by Dana Kulić and published by Springer. This book was released on 2017-03-20 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental Robotics XV is the collection of papers presented at the International Symposium on Experimental Robotics, Roppongi, Tokyo, Japan on October 3-6, 2016. 73 scientific papers were selected and presented after peer review. The papers span a broad range of sub-fields in robotics including aerial robots, mobile robots, actuation, grasping, manipulation, planning and control and human-robot interaction, but shared cutting-edge approaches and paradigms to experimental robotics. The readers will find a breadth of new directions of experimental robotics. The International Symposium on Experimental Robotics is a series of bi-annual symposia sponsored by the International Foundation of Robotics Research, whose goal is to provide a forum dedicated to experimental robotics research. Robotics has been widening its scientific scope, deepening its methodologies and expanding its applications. However, the significance of experiments remains and will remain at the center of the discipline. The ISER gatherings are a venue where scientists can gather and talk about robotics based on this central tenet.

Advances in Service and Industrial Robotics

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Publisher : Springer
ISBN 13 : 3030196488
Total Pages : 567 pages
Book Rating : 4.0/5 (31 download)

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Book Synopsis Advances in Service and Industrial Robotics by : Karsten Berns

Download or read book Advances in Service and Industrial Robotics written by Karsten Berns and published by Springer. This book was released on 2019-05-07 with total page 567 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the proceedings of the 28th International Conference on Robotics in Alpe-Adria-Danube Region, RAAD 2019, held at the Fraunhofer Zentrum and the Technische Universität in Kaiserslautern, Germany, on 19–21 June 2019. The conference brought together academic researchers in robotics from 20 countries, mainly affiliated to the Alpe-Adria-Danube Region and covered all major areas of robotic research, development and innovation as well as new applications and current trends. Offering a comprehensive overview of the ongoing research in the field of robotics, the book is a source of information and inspiration for researchers wanting to improve their work and gather new ideas for future developments. It also provides researchers with an innovative and up-to-date perspective on the state of the art in this area.

Hydrostatic Transmissions and Actuators

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Publisher : John Wiley & Sons
ISBN 13 : 111881889X
Total Pages : 408 pages
Book Rating : 4.1/5 (188 download)

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Book Synopsis Hydrostatic Transmissions and Actuators by : Gustavo Costa

Download or read book Hydrostatic Transmissions and Actuators written by Gustavo Costa and published by John Wiley & Sons. This book was released on 2015-07-22 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrostatic Transmissions and Actuators takes a pedagogical approach and begins with an overview of the subject, providing basic definitions and introducing fundamental concepts. Hydrostatic transmissions and hydrostatic actuators are then examined in more detail with coverage of pumps and motors, hydrostatic solutions to single-rod actuators, energy management and efficiency and dynamic response. Consideration is also given to current and emerging applications of hydrostatic transmissions and actuators in automobiles, mobile equipment, wind turbines, wave energy harvesting and airplanes. End of chapter exercises and real world industrial examples are included throughout and a companion website hosting a solution manual is also available. Hydrostatic Transmissions and Actuators is an up to date and comprehensive textbook suitable for courses on fluid power systems and technology, and mechatronics systems design.

Positive Displacement Machines

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Publisher : Academic Press
ISBN 13 : 0128169990
Total Pages : 472 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Positive Displacement Machines by : Ibrahim A. Sultan

Download or read book Positive Displacement Machines written by Ibrahim A. Sultan and published by Academic Press. This book was released on 2019-08-01 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Positive Displacement Machines: Modern Design Innovations and Tools explains the design and workings of a wide range of positive displacement pumps, compressors and gas expanders. Written at a mathematical and technical level, the book explores the most influential research in this field over the past decade, along with industry best practices. Sections highlight the importance of using the latest computation techniques and discuss how to follow the proper design procedures to achieve a desired outcome. - Explains how these machines work on a fundamental level, helping the reader build a holistic understanding which aids complex problem- solving - Describes how to mathematically model the performance of pumps, compressors and gas expanders - Provides advice on how to design and optimize positive displacement machines to match a given application

Advances in Engineering Design

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Publisher : Springer
ISBN 13 : 9811364699
Total Pages : 799 pages
Book Rating : 4.8/5 (113 download)

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Book Synopsis Advances in Engineering Design by : Anamika Prasad

Download or read book Advances in Engineering Design written by Anamika Prasad and published by Springer. This book was released on 2019-04-27 with total page 799 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents select proceedings of the International Conference on Future Learning Aspects of Mechanical Engineering (FLAME 2018). The book covers mechanical design areas such as computational mechanics, finite element modeling, computer aided designing, tribology, fracture mechanics, and vibration. The book brings together different aspects of engineering design, and will be useful for researchers and professionals working in this field.

Cavitation and Bubble Dynamics

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Publisher : Elsevier
ISBN 13 : 0128233982
Total Pages : 355 pages
Book Rating : 4.1/5 (282 download)

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Book Synopsis Cavitation and Bubble Dynamics by : Phoevos Koukouvinis

Download or read book Cavitation and Bubble Dynamics written by Phoevos Koukouvinis and published by Elsevier. This book was released on 2021-09-24 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cavitation and Bubble Dynamics: Fundamentals and Applications examines the latest advances in the field of cavitation and multiphase flows, including associated effects such as material erosion and spray instabilities. This book tackles the challenges of cavitation hindrance in the industrial world, while also drawing on interdisciplinary research to inform academic audiences on the latest advances in the fundamentals. Contributions to the book come from a wide range of specialists in areas including fuel systems, hydropower, marine engineering, multiphase flows and computational fluid mechanics, allowing readers to discover novel interdisciplinary experimentation techniques and research results. This book will be an essential tool for industry professionals and researchers working on applications where cavitation hindrance affects reliability, noise, and vibrations. - Covers a wide range of cavitation and bubble dynamics phenomena, including shock wave emission, jetting, and luminescence - Provides the latest advice about applications including cavitation tunnels, cavitation testing, flow designs to avoid cavitation in pumps and other hydromachinery, and flow lines - Describes novel experimental techniques, such as x-ray imaging and new computational techniques

Control Aspects of Complex Hydromechanical Transmissions

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Author :
Publisher : Linköping University Electronic Press
ISBN 13 : 9176854833
Total Pages : 75 pages
Book Rating : 4.1/5 (768 download)

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Book Synopsis Control Aspects of Complex Hydromechanical Transmissions by : L. Viktor Larsson

Download or read book Control Aspects of Complex Hydromechanical Transmissions written by L. Viktor Larsson and published by Linköping University Electronic Press. This book was released on 2017-08-17 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis deals with control aspects of complex hydromechanical transmissions. The overall purpose is to increase the knowledge of important aspects to consider during the development of hydromechanical transmissions to ensure transmission functionality. These include ways of evaluating control strategies in early design stages as well as dynamic properties and control aspects of displacement controllers, which are key components in these systems. Fuel prices and environmental concerns are factors that drive research on propulsion in heavy construction machinery. Hydromechanical transmissions are strong competitors to conventional torque-converter transmissions used in this application today. They offer high efficiency and wide speed/torque conversion ranges, and may easily be converted to hybrids that allow further fuel savings through energy recuperation. One challenge with hydromechanical transmissions is that they offer many different configurations, which in turn makes it important to enable evaluation of control aspects in early design stages. In this thesis, hardware-in-the-loop simulations, which blend hardware tests and standard software-based simulations, are considered to be a suitable method. A multiple-mode transmission applied to a mid-sized construction machine is modelled and evaluated in offline simulations as well as in hardware-in-the-loopsimulations. Hydromechanical transmissions rely on efficient variable pumps/motors with fast, accurate displacement controllers. This thesis studies the dynamic behaviour of the displacement controller in swash-plate axial-piston pumps/motors. A novel control approach in which the displacement is measured with an external sensor is proposed. Performance and limitations of the approach are tested in simulations and in experiments. The experiments showed a significantly improved performance with a controller that is slightly more advanced than a standard proportional controller. The implementation of the controller allows simple tuning and good predictability of the displacement response.