复杂铰点空间旋转放大机构计算与力学分析

Calculation and Mechanical Analysis on the Complex Hinge Spatial Rotation and Amplification Mechanism

为了得到驱动机构与承载机构的力学变化关系,在广义坐标下,对六连杆复杂铰点空间旋转放大机构运动全过程分析。基于力矩稳定性,借助MATLAB计算旋转过程中驱动力与承载力的变化关系,得到其动态曲线,通过试验测试验证计算的准确性和结构的合理性,对多连杆机械结构臂架的结构布局优化提供一种简易的计算方法,也对轻量化设计具有一定的指导意义。

In order to obtain the driving mechanism and the bearing mechanism,the spatial rotating magnifying mechanism with complex hinge points of the six connecting rods is used in this article;and the whole motion process of the magnifying mechanism is analyzed in the generalized coordinate. Based on the moment stability,the dynamic curve is obtained with the help of the MATLAB to calculate the relationship between the driving force and the bearing capacity in the rotation process;the accuracy of calculation and the rationality of structure are verified by the tests. It provides a simple calculation method for the structural layout optimization of multi-linkage mechanical structure boom,and it also has certain guiding significance for the lightweight design.