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Register a new userDesign of an FLC technique to Study the Influence of Muscle Model on FES-cycling Performance
تصميم تقنية تحكم تعتمد على المنطق العائم من أجل دراسة أثر نموذج العضلة في أداء قيادة الدراجة عن طريق الإثارة الكهربائية الوظيفية
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رشا كاظم مسعود( باحث )
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في هذا البحث درِست ثلاثة نماذج للعضلات الهيكلية، و كان أول نموذج هو نموذج Ferrarin للعضلة و هو عبارة عن تابع تحويل بين الإثارة الكهربائية و عزم الركبة. في حين يعتمد تصميم النموذجين الآخرين (نموذج Riener و نموذج Virtual Muscle ) على فيزيولوجية العضلة الهيكلية، أُجرِيت نمذجة عضلة Riener باستخدام برنامج Matlab/Simulink , بينما بني نموذج ال virtual muscle باستخدام برنامج Virtual Muscle 4.0.1. أجريت نمذجة العضلة رباعية الرؤوس الباسطة للركبة باستخدام النماذج الثلاثة، و اختبرت هذه النماذج من حيث الاستجابة للإثارة الكهربائية، و من ثم صممت استراتيجية للتحكم تعتمد على المنطق العائم تهدف إلى التحكم بسرعة دوران مسنن الدراجة. وظِّفَ كل نموذج للعضلة على حدة في عملية التحكم المصممة و نُوقِش و قُيم أداء النماذج الثلاثة خلال عملية التحكم، و تبين أن نوع نموذج العضلة يؤثر في أداء التحكم.
Abstract In this paper, three different muscle models have been investigated. The first model (Ferrarin’s muscle model) is a transfer function between electrical stimulation and the resultant knee torque. The other two muscle models are physiological based (Riener’s muscle model and Virtual Muscle). Riener’s muscle is modelled in this paper by using Matlab/Simulink, while Virtual Muscle model has been built using Virtual Muscle software (Virtual Muscle 4.0.1). A quadriceps is modelled using each of the three models. The three models are tested in terms of their responses to activation and then they are implemented in a fuzzy logic control (FLC) strategy which aims to control the cycling cadence. The performance of the three models during control has been discussed and evaluated. It appears that the type of the muscle model has an influence on the control performance.
References used
F. Huxley, “Muscle structure and theories of contraction”, Progress in Biophysics and chemistry, vol. 7, pp 257-318, 1957
V. Hill, “The heat of shortening and the dynamic constants of muscle”. Proceedings of the Royal Society of London, B 126 (843), pp. 136-195, 1938
Y. C. Fung, “Biomechanics, mechanical properties of living tissues”, Springer-verlag, New York, 1981
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