Fuzzy modelling of knee joint with genetic optimization
Modelling of joint properties of lower limbs in people with spinal cord injury is significantly challenging for researchers due to the complexity of the system. The objective of this study is to develop a knee joint model capable of relating electrical parameters to dynamic joint torque as well as...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOS Press
2011
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/7932/1/J4990_e1742cfc05fa22508d18390d61b0102b.pdf http://eprints.uthm.edu.my/7932/ https://doi.org/ 10.3233/ABB-2011-0007 |
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| Institution: | Universiti Tun Hussein Onn Malaysia |
| Language: | English |
| Summary: | Modelling of joint properties of lower limbs in people with spinal cord injury is significantly challenging for researchers
due to the complexity of the system. The objective of this study is to develop a knee joint model capable of relating electrical
parameters to dynamic joint torque as well as knee angle for functional electrical stimulation application. The joint model consists
of a segmental dynamic, time-invariant passive properties and uncertain time-variant active properties. The knee joint model
structure comprising optimised equations of motion and fuzzy models to represent the passive viscoelasticity and active muscle
properties is formulated. The model thus formulated is optimised using genetic optimization, and validated against experimental
data. The developed model can be used for simulation of joint movements as well as for control development. The results show
that the model developed gives an accurate dynamic characterisation of the knee joint. |
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