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Development Of A Finite Element Analysis Heat Transfer Model Of A Trans Tibial Residual Limb And Prosthesis
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Book Synopsis Development of a Finite Element Analysis Heat Transfer Model of a Trans-tibial Residual Limb and Prosthesis by : Jeffrey Thomas Peery
Download or read book Development of a Finite Element Analysis Heat Transfer Model of a Trans-tibial Residual Limb and Prosthesis written by Jeffrey Thomas Peery and published by . This book was released on 2003 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Finite Element Simulation of Heat Transfer by : Jean-Michel Bergheau
Download or read book Finite Element Simulation of Heat Transfer written by Jean-Michel Bergheau and published by John Wiley & Sons. This book was released on 2013-03-01 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the finite element method applied to the resolution of industrial heat transfer problems. Starting from steady conduction, the method is gradually extended to transient regimes, to traditional non-linearities, and to convective phenomena. Coupled problems involving heat transfer are then presented. Three types of couplings are discussed: coupling through boundary conditions (such as radiative heat transfer in cavities), addition of state variables (such as metallurgical phase change), and coupling through partial differential equations (such as electrical phenomena). A review of the various thermal phenomena is drawn up, which an engineer can simulate. The methods presented will enable the reader to achieve optimal use from finite element software and also to develop new applications.
Book Synopsis Predicting Pressure Distribution Between Transfemoral Prosthetic Socket and Residual Limb Using Finite Element Analysis by : Rajesh Surapureddy
Download or read book Predicting Pressure Distribution Between Transfemoral Prosthetic Socket and Residual Limb Using Finite Element Analysis written by Rajesh Surapureddy and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, a non-linear Finite Element (FE) model was created and analyzed to determine the pressure distribution between the residual limb and the prosthetic socket of a transfemoral amputee. This analysis was performed in an attempt to develop a process allowing healthcare providers and engineers to simulate the fit and comfort of transfemoral prosthetics to reduce the number of re-fittings needed for the amputees. The analysis considered the effects of interference due to insertion of the limb into the prosthesis, referred to as donning, and also the effects due to the body weight of the amputee. A non-linear finite element static implicit analysis method was utilized. This analysis implemented multiple finite element techniques, including geometric non-linearity due to large deflections, non-linear contacts due to friction between the contact surfaces of the residual limb and the socket, and non-linear hyper-elastic material properties for the residual limb's soft tissue. This non-linear static analysis was carried out in two time-steps. The first step involved solving the interference fit analysis to study the pre-stresses developed due to the effect of donning. The donning process results in soft tissue displacement to accommodate the internal geometry of the prosthesis. In the second load application time-step, an additional load of half the person's body weight was applied to the femur. The maximum normal stress (contact pressure) of 84 kPa was observed due to the combined effect of the donning procedure and body weight application, comparable to the studies performed by other researchers. The procedure developed through this work can be used by future researchers and prosthetic designers in understanding how to better design transfemoral prosthesis.
Book Synopsis Design and Verification of a Finite Element Analysis Model for Predicting Deflection of Actively Actuated Prosthetic Sockets by : Rafael Rodriguez
Download or read book Design and Verification of a Finite Element Analysis Model for Predicting Deflection of Actively Actuated Prosthetic Sockets written by Rafael Rodriguez and published by . This book was released on 2011 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: A lower limb prosthesis provides assistance to its user in both ambulation and stationary support. The lower limb prosthesis consists of a socket, which interfaces with the residual limb, a pylon, attachment hardware to secure the pylon to the socket, and a prosthetic foot. For the prosthesis to be effective, the socket must be comfortable, functional and aesthetically appealing, usually in that order. Lack of comfort and fit can cause movement problems and health issues. The residual limb of the amputee changes its volume throughout the day and in order to maintain comfort a socket must be able to adapt to these volume changes. Previous research has resulted in the development of concepts for inflatable prosthetic sockets capable of addressing this need. The concepts rely on laser sintering (LS) to manufacture the parts. This research focuses on the development of a finite element analysis (FEA) method to assist in the design of adaptive sockets. The FEA can be used to predict the pressure-deflection curve of a given socket design. The FEA method was verified by experiments using LS manufactured test specimens. Results from FEA simulations indicate that the LS-manufactured sockets will achieve the desired deflection (~0.1 in) for relatively low pressures (
Book Synopsis Finite Element Formulation of Contact Between a Residual Limb and a Trans-tibial Prosthetic Socket by : Rohan Goud Chandrashekar
Download or read book Finite Element Formulation of Contact Between a Residual Limb and a Trans-tibial Prosthetic Socket written by Rohan Goud Chandrashekar and published by . This book was released on 2006 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Generation and Development of a Biomechanical Finite Element Model of the Residual Limb and Prosthetic Socket by : Laura Finney
Download or read book Generation and Development of a Biomechanical Finite Element Model of the Residual Limb and Prosthetic Socket written by Laura Finney and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Use of a Novel Residuum Model to Design a Variable-impedance Transtibial Prosthetic Socket by : David Moinina Sengeh
Download or read book The Use of a Novel Residuum Model to Design a Variable-impedance Transtibial Prosthetic Socket written by David Moinina Sengeh and published by . This book was released on 2016 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: For people living with limb amputation, the prosthetic socket - the interface between the residuum and prosthesis - is the most critical component. When a socket is uncomfortable, especially due to poor fit, the quality of life for a patient is greatly hindered. However, conventional design of sockets is largely artisan, with limited input of quantitative data. Current computer-aided and manufacturing (CAD/CAM) designs are still not clinically applicable solutions. Due to model identification procedures that employ non patient-specific and incomplete data sets, today's finite element (FE) models of the residuum are not predictive, leading to suboptimal socket designs. As such, there exists a need for a comprehensive biomechanical model of the residuum for the quantitative design and computational evaluation of patient-specific prosthetic sockets. This thesis presents a combined experimental-numerical approach to evaluate and validate a transtibial residuum biomechanical model. The central hypothesis of the work is that a single biomechanical model can predict the large non-linear response at various sites on a residuum under load. To evaluate this hypothesis, a non-linear, two-tissue model was formulated where tissue geometries were defined using MRI data of the residuum. The non-linear viscoelastic material parameters of the model were identified through inverse FEA-based optimization using in-vivo indentation experimental data at four locations. Using optimized model tissue parameters, the mean percentage error (mean absolute error/ maximum experimental force) between the experimental and simulation force-time curves at 14 other locations across the evaluated transtibial residuum was 7 ± 3%. Using this same modeling methodology and a single set of material constants to describe the bulk soft tissue biomechanical response of seven distinct transtibial residual limb models, the average percentage error for indentations at multiple locations across all seven limbs was 7 ± 1%. From these predictive models of residuum limbs, one rigid novel socket and two multimaterial transtibial sockets were designed, fabricated and evaluated through an entirely quantitative, automated and repeatable methodology. In a preliminary clinical investigation, the novel sockets were shown to reduce peak contact pressures at the tibia and fibular head regions on the residuum by significant amounts during standing compared to a conventional socket interface designed and fabricated by a trained prosthetist.
Book Synopsis Integrated Finite Element Thermal-structural Analysis with Radiation Heat Transfer by :
Download or read book Integrated Finite Element Thermal-structural Analysis with Radiation Heat Transfer written by and published by . This book was released on 1982 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of a Biomechanical Model of the Interface Between the Residual Limb and Prosthesis for Trans-femoral Amputees by : Vee Sin Peter Lee
Download or read book Development of a Biomechanical Model of the Interface Between the Residual Limb and Prosthesis for Trans-femoral Amputees written by Vee Sin Peter Lee and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of a Finite Element Computer Program for Three Dimensional Heat Transfer by : M. G. Ravichandran
Download or read book Development of a Finite Element Computer Program for Three Dimensional Heat Transfer written by M. G. Ravichandran and published by . This book was released on 1984 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preprocessing a Static Finite Elements Simulation for a Transtibial Prosthesis Using Cae Tools by : Juan Sebastián Lasprilla Lasprilla
Download or read book Preprocessing a Static Finite Elements Simulation for a Transtibial Prosthesis Using Cae Tools written by Juan Sebastián Lasprilla Lasprilla and published by . This book was released on 2020 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: People with physical-motor disabilities who make use of prosthetic devices, have the need for these prostheses to be designed to fulfill the tasks of their daily lives, regardless of the level of physical activity they maintain. This particular problem can be approached from the mechanical design of the prostheses, having as a critical stage, the validation of the components designed for its operation. Therefore, to improve the designs, a stage of determining the forces that the device must withstand is necessary. For this reason, a stage where all the forces affecting the prosthesis are determined is necessary. For this work, simulations can be used in specialized programs and finite element analysis methods to detail the behavior of virtual models under specific conditions critical to the design. This document focuses on the approach of a computerized motion analysis to structure the pre-processing of a static finite element simulation, used in the design of a transtibial prosthesis for a Paralympic cyclist, and thus evidence the behavior of the proposed prosthesis model under the charges present during competition.
Book Synopsis Hybrid Transfinite Element Methodology by : Sudhir Balkrishna Railkar
Download or read book Hybrid Transfinite Element Methodology written by Sudhir Balkrishna Railkar and published by . This book was released on 1990 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Development of a Generalised Finite Element Scheme for Heat Transfer and Fluid Flow Analysis by : Faramarz Shemirani
Download or read book The Development of a Generalised Finite Element Scheme for Heat Transfer and Fluid Flow Analysis written by Faramarz Shemirani and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Finite Element Analysis of Laminar Convective Heat Transfer by : Jesse Louis Holster
Download or read book Finite Element Analysis of Laminar Convective Heat Transfer written by Jesse Louis Holster and published by . This book was released on 1979 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Finite Element Analysis and Experimental Study of the Two-dimensional Free Convection Heat Transfer for the Individual Surfaces of a Long Infinite Isothermal Square Body by : Eduardo Villarreal
Download or read book A Finite Element Analysis and Experimental Study of the Two-dimensional Free Convection Heat Transfer for the Individual Surfaces of a Long Infinite Isothermal Square Body written by Eduardo Villarreal and published by . This book was released on 1994 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis FlexPDE and Finite Element Method Applications in Thermal Energy Storage and Cavities by : Hosseinzadeh, Khashayar
Download or read book FlexPDE and Finite Element Method Applications in Thermal Energy Storage and Cavities written by Hosseinzadeh, Khashayar and published by IGI Global. This book was released on 2024-03-01 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: Academic scholars are increasingly confronted with the complex challenges of understanding and optimizing heat transfer processes, particularly in the areas of cavities and Phase Change Materials (PCM). These issues are central to a range of crucial applications, including building systems, electronic equipment, and the harnessing of solar energy. The need for innovative solutions to enhance heat transfer efficiency is more pressing than ever, and a comprehensive resource to guide scholars through these complexities is essential. FlexPDE and Finite Element Method Applications in Thermal Energy Storage and Cavities is research book specifically designed to provide scholars with the knowledge and expertise necessary to navigate the complexities of heat transfer issues. With a strong emphasis on practical application, the book leverages the capabilities of the Finite Element Method (FEM) through the FLEXPDE software, making it a valuable resource for those seeking innovative solutions to problems in heat transfer.
Book Synopsis Finite element analysis of combined mode heat transfer by : Muhammad Mahbubur Razzaque
Download or read book Finite element analysis of combined mode heat transfer written by Muhammad Mahbubur Razzaque and published by . This book was released on 1982 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
