A Hill Muscle Actuated Arm Model with Dynamic Muscle Paths
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This contribution presents the optimal control of a musculoskeletal multibody model with Hill muscle actuation and dynamic muscle paths. In particular, the motion of a human arm and its muscle paths is described via constrained variational dynamics. The optimal control problem in this work is based on the direct transcription method DMOCC , where the optimal control problem is discretised in time, and the resulting nonlinear constrained finite dimensional optimisation problem is solved. To take a step towards finding global or multiple minima, we utilize the Matlab multistart framework for global optimisation. With the help of an example, we outline a framework to find feasible solutions and analyse several minima to which the nonlinear programming solver converges.
This work is funded by the Federal Ministry of Education and Research (BMBF) as part of the project 05M16WEB - DYMARA.
- 6.Maas, R., Leyendecker, S.: Biomechanical optimal control of human arm motion. Proc. Inst. Mech. Eng. Part K J. Multi-body Dyn. 227(4), 375–389 (2013)Google Scholar
- 7.Penner, J., Leyendecker, S.: Multi-obstacle muscle wrapping based on a discrete variational principle. In: Proceedings of the European Consortium for Mathematics in Industry (ECMI) Conference, Budapest, Hungary (2018, in review)Google Scholar