A contact model to simulate human–artifact interaction based on force optimization: implementation and application to the analysis of a training machine

Journal article
(Original article)


Publication Details

Author(s): Krüger D, Wartzack S
Journal: Computer Methods in Biomechanics and Biomedical Engineering
Publication year: 2017
Volume: 20
Journal issue: 15
Pages range: 1589-1598
ISSN: 1025-5842
Language: English


Abstract


Musculoskeletal multibody models are increasingly used to analyze and optimize physical interactions between humans and technical artifacts. Since interaction is conveyed by contact between the human body and the artifact, a computationally robust modeling approach for frictional contact forces is a crucial aspect. In this contribution, we propose a parametric contact model and formulate an associated force optimization problem to simultaneously estimate unknown muscle and contact forces in an inverse dynamic manner from a prescribed motion trajectory. Unlike existing work, we consider both the static and the kinetic regime of Coulomb’s friction law. The approach is applied to the analysis of a leg extension training machine with the objective to reduce the stress on the tibiofemoral joint. The uncertainty of the simulation results due to a tunable parameter of the contact model is of particular interest. 



 



FAU Authors / FAU Editors

Krüger, Daniel
Lehrstuhl für Konstruktionstechnik
Wartzack, Sandro Prof. Dr.-Ing.
Lehrstuhl für Konstruktionstechnik


How to cite

APA:
Krüger, D., & Wartzack, S. (2017). A contact model to simulate human–artifact interaction based on force optimization: implementation and application to the analysis of a training machine. Computer Methods in Biomechanics and Biomedical Engineering, 20(15), 1589-1598. https://dx.doi.org/10.1080/10255842.2017.1393804

MLA:
Krüger, Daniel, and Sandro Wartzack. "A contact model to simulate human–artifact interaction based on force optimization: implementation and application to the analysis of a training machine." Computer Methods in Biomechanics and Biomedical Engineering 20.15 (2017): 1589-1598.

BibTeX: 

Last updated on 2019-09-09 at 15:33