Predictive control for an active prosthetic socket informed by FEA-based tissue damage risk estimation
Predictive control for an active prosthetic socket informed by FEA-based tissue damage risk estimation
This paper presents an architecture for generalized predictive control for an active prosthetic socket system, based on a cost function performance index measure for minimization of residual limb tissue injury. Finite element analysis of a transtibial residuum model donned with a total surface bearing socket was used to provide controller training data and biomechanical rationale for deep tissue injury risk assessment, by estimating the internal deformation state of the soft tissues and the residuum-socket interface loading under a range of prosthetic loading instances. The results demonstrate the concept of this approach for interface actuation modelled as translational spring and damper systems.
Mbithi, Florence M.
68aa5a1e-9252-4264-8057-9bc3a7174939
Chipperfield, Andrew
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Steer, Joshua
b958f526-9782-4e36-9c49-ad48e8f650ed
Dickinson, Alexander
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Mbithi, Florence M.
68aa5a1e-9252-4264-8057-9bc3a7174939
Chipperfield, Andrew
524269cd-5f30-4356-92d4-891c14c09340
Steer, Joshua
b958f526-9782-4e36-9c49-ad48e8f650ed
Dickinson, Alexander
10151972-c1b5-4f7d-bc12-6482b5870cad
Mbithi, Florence M., Chipperfield, Andrew, Steer, Joshua and Dickinson, Alexander
(2019)
Predictive control for an active prosthetic socket informed by FEA-based tissue damage risk estimation.
In 2019 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC).
IEEE..
(doi:10.1109/EMBC.2019.8857155).
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Abstract
This paper presents an architecture for generalized predictive control for an active prosthetic socket system, based on a cost function performance index measure for minimization of residual limb tissue injury. Finite element analysis of a transtibial residuum model donned with a total surface bearing socket was used to provide controller training data and biomechanical rationale for deep tissue injury risk assessment, by estimating the internal deformation state of the soft tissues and the residuum-socket interface loading under a range of prosthetic loading instances. The results demonstrate the concept of this approach for interface actuation modelled as translational spring and damper systems.
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Accepted/In Press date: 24 April 2019
e-pub ahead of print date: 7 October 2019
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Local EPrints ID: 435926
URI: http://eprints.soton.ac.uk/id/eprint/435926
PURE UUID: a992680c-a91f-4c34-843e-bb36be1177e0
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Date deposited: 22 Nov 2019 17:30
Last modified: 24 Apr 2024 01:58
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Author:
Florence M. Mbithi
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