多體位下肢康復(fù)訓(xùn)練系統(tǒng)關(guān)鍵技術(shù)研究
[Abstract]:In recent years, the number of patients with functional disorders of the lower limbs increased gradually. Modern medicine adopted the lower limb rehabilitation training system to improve the survival ability and living standard of the patients and accelerate the rehabilitation process of the patients. The research process of lower limb rehabilitation training system is very complicated. It involves many disciplines such as medicine, control, machinery and so on. The analysis and planning of human gait movement is one of the key techniques in the design of rehabilitation training system for lower limbs in multi-position. It is the basic premise of the design of rehabilitation training system. It is of great significance to the training of lower limb balance function and the selection of rehabilitation device control system. In this paper, first, the DH method is used to analyze the forward motion and the inverse motion of the human lower limbs, and based on the Newton-Euler method in the rigid modeling method, the model of the supporting period in the gait movement of the human lower limbs is established. After the analysis and comparison of several commonly used simulation software, Matlab/Simmechanics is selected to set up the model of human lower limb movement and simulate it. The movement law of human lower limb is analyzed by the dynamic moment curve of lower limb movement obtained by experimental simulation. Secondly, three-dimensional dynamic capture technology is used to collect the motion trajectory coordinates of hip joint and knee joint in the process of human lower limb movement, and the motion trajectory coordinates are simulated by Matlab, and the curve of position coordinates and torque curves of hip and knee joints are obtained. The simulation results of the model are compared with the experimental results. The results show that the theoretical part of the model is consistent with the actual situation. Finally, referring to the gait characteristics of healthy adult men measured by the experiment, the trajectory of gait, step size and joint angular displacement is selected as the effective parameters of gait planning, and the movement of the three stages of gait planning is analyzed and planned, that is, the beginning, the intermediate step and the stop step. The gait planning of each stage is connected together to complete a periodic gait planning. The purpose of this paper is to provide a reference for the research of rehabilitation training system of lower limbs in multi-position.
【學(xué)位授予單位】:長春大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:TP242;TH789
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