Structural and kinematic analysis of elbow rehabilitation equipment

6th ModTech International Conference - Modern Technologies in Industrial Engineering

Vetrice, G.^1 ; Deaconescu, A.^1

Department of Industrial Engineering and Management, Transilvania University of Brasov, Mihai Viteazul Street, no. 5, Brasov

500174, Romania^1

关键词: Constructive solutions;    Flexion extension;    Kinematic Analysis;    Kinematic pairs;    Number of degrees of freedom;    Pneumatic muscle;    Solidworks software;    Two degrees of freedom;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/400/2/022058/pdf
DOI  :  10.1088/1757-899X/400/2/022058

来源: IOP

【 摘 要 】

The aim of this paper is to present the structural and kinematic analysis of a new constructive solution for the rehabilitation of patients suffering from posttraumatic elbow affections. The equipment with two degrees of freedom, one for flexion-extension movement and one for pronation-supination should be able to ensure the full recovery of the elbow joint. Each movement is achieved by means of a pair of pneumatic muscles. The structural analysis of the mechanism includes drawing the constructive, structural and block diagrams, identifying the exterior links (number of inputs and outputs), the mobility of the mechanism (the number of degrees of freedom), the analysis of the transmission of movements and forces and also the analysis of the hyperstaticity of the mechanism. The kinematic pairs composing the mechanisms are isostatic, i.e. with no potential links. The kinematic analysis involves equations that describe the kinematic behaviour of the rehabilitation equipment. Such behaviour can be described analytically or graphically. In the latter case, the equations will underlie the variation graphs of position, velocity and acceleration versus time plotted by means of SolidWorks software.