Establishment and Simulation of the Damping Torque Model of Hydraulic Intelligent Knee Prosthesis

Proceedings of 5th International Conference on Vehicle, Mechanical and Electrical Engineering Pub Date : 1900-01-01 DOI:10.5220/0008856302030209

Sun Jinyue, Meng Qiaoling, Lan He, Jiao Zongqi, Hongliu Yu

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引用次数: 1

Abstract

: The intelligent knee prosthesis structure was designed and the dynamics model of the lower limb prosthesis system and hydraulic damper model were established in this paper. The flow area which adjusted the damping torque was identified through the combination of hydraulic damper model and dynamics model. The comparable analysis was done based on the Matlab simulation of damping torque curve with theoretical curve. The damper opening of the specific speed was determined. The trend of the knee joint moment curve produced by the hydraulic damper is consistent with the theoretical moment curve under different flow areas. The damping moment of hydraulic knee joint can be controlled by adjusting the flow area. The proposed damping torque model can provide effective guidance for the determination of the flow area and have important consequences for adjustment of damping torque. Providing theoretical model of the damping torque control for the hydraulic intelligent knee prosthesis.

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液压智能膝关节假体阻尼力矩模型的建立与仿真

设计了智能膝关节假体结构，建立了下肢假体系统动力学模型和液压阻尼器模型。通过将液压阻尼器模型与动力学模型相结合，确定了调节阻尼转矩的流区。在Matlab仿真的基础上，对阻尼力矩曲线与理论曲线进行了对比分析。确定了阻尼器开度的比转速。在不同过流面积下，液压阻尼器产生的膝关节弯矩曲线趋势与理论弯矩曲线一致。液压膝关节的阻尼力矩可以通过调节流量来控制。所建立的阻尼转矩模型可以为流面积的确定提供有效的指导，并对阻尼转矩的调整具有重要意义。为液压智能膝关节假体提供阻尼力矩控制的理论模型。

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Proceedings of 5th International Conference on Vehicle, Mechanical and Electrical Engineering

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