Combined feedforward and feedback control of a redundant, nonlinear, dynamic musculoskeletal system.
Combined feedforward and feedback control of a redundant, nonlinear, dynamic musculoskeletal system.
复制标题
DOI:
10.1007/s11517-009-0479-3
复制
发表时间:
2009-05
影响因子:
3.2
通讯作者:
Chadwick, Edward K.
中科院分区:
文献类型:
--
作者:
Blana, Dimitra;Kirsch, Robert F.;Chadwick, Edward K.
A functional electrical stimulation controller is presented that uses a combination of feedforward and feedback for arm control in high-level injury. The feedforward controller generates the muscle activations nominally required for desired movements, and the feedback controller corrects for errors caused by muscle fatigue and external disturbances. The feedforward controller is an artificial neural network (ANN) which approximates the inverse dynamics of the arm. The feedback loop includes a PID controller in series with a second ANN representing the nonlinear properties and biomechanical interactions of muscles and joints. The controller was designed and tested using a two-joint musculoskeletal model of the arm that includes four mono-articular and two bi-articular muscles. Its performance during goal-oriented movements of varying amplitudes and durations showed a tracking error of less than 4° in ideal conditions, and less than 10° even in the case of considerable fatigue and external disturbances.
登录
查看更多内容
影响因子:
4.6
作者:
ABBAS, JJ;CHIZECK, HJ
通讯作者:
CHIZECK, HJ
DOI:
10.1109/5326.827449
发表时间:
2000-02-01
期刊:
IEEE TRANSACTIONS ON SYSTEMS MAN AND CYBERNETICS PART C-APPLICATIONS AND REVIEWS
影响因子:
--
作者:
Karniel, A;Inbar, GF
通讯作者:
Inbar, GF
DOI:
10.1115/1.1634282
发表时间:
2003-12-01
影响因子:
1.7
作者:
McLean, SG;Su, A;van den Bogert, AJ
通讯作者:
van den Bogert, AJ
影响因子:
4.6
作者:
LAN, N;CRAGO, PE;CHIZECK, HJ
通讯作者:
CHIZECK, HJ
影响因子:
2.4
作者:
VANDERHELM, FCT
通讯作者:
VANDERHELM, FCT