Paper Info
Title
New Design Procedure of Transtibial ProsthesisBed Stump Using Topological Optimization Method.
Abstract
This paper presents a new design procedure for production of a transtibial prosthesis bed stump by three-dimensional (3D) printing with topological optimization. The suggested procedure combines the medical perspective with finite element analysis and facilitates regaining the symmetry in patients with transtibial prosthesis, which leads to life improvement. The particular focus of the study is the weight reduction of the lower part of the bed stump, while taking into account its stiffness and load-bearing capacity. The first part of the work deals with the analysis of the subject geometry of the bed stump, which is usually oversized in terms of the weight and stiffness that are necessary for the current application. In the second part, an analysis of walking biomechanics with a focus on the impact and rebound phases is presented. Based on the obtained information, a spatial model of the lower part of the bed stump is proposed in the third phase, in which the finite element method is described. In the fourth part, the topological optimization method is used for reducing the structure weight. In the last part, the results of the designed model are analyzed. Finally, the recommendations for the settings of the method are presented. The work is based on the practical industry requirements, and the obtained results will be reflected in the design of new types of transtibial prosthesis.
Year
DOI
Venue
2020
10.3390/sym12111837
SYMMETRY-BASEL
Keywords
DocType
Volume
biomechanics,transtibial prosthesis,bed stump,topology optimization,3D print,FEM,SLS,SIMP,MATLAB
Journal
12
Issue
Citations 
PageRank 
11
0
0.34
References 
Authors
0
5
Name
Order
Citations
PageRank
Martin Sotola100.68
David Stareczek200.34
David Rybansky300.68
Jiri Prokop400.34
Pavel Marsalek500.68