基于弹簧阻尼系统的人体外骨骼背架结构研究

Research of exoskeleton back frame based on spring-damp system

在人体外骨背架结构中引入弹簧阻尼系统,使背架结构与外骨骼髋部结构的连接具有更好的减震和缓冲作用。以PPS材料制作的背架结构为研究对象,60 kg为负重载荷,创新性地利用刚柔耦合方式对背架结构弹簧阻尼系统有限元模型进行处理,并进行人体支撑弯曲运动多载荷步分析,获得各工况应力值、变形量及分布图。经分析得,背架结构完全满足静力学各项性能参数要求。

The spring-damp system is applied to the exoskele- ton back frame for better reducing vibration and impacting from the connection of back frame and exoskeleton hip structure. Do multi- load steps＇ analysis for exoskeleton back frame in human body ben- ding movement which is made by PPS and loaded 60 kg payload has been carried out. The finite element model is established by rigid- flexible coupling method. The back frame can absolutely fit all performance parameters＂ requirements of statics from stress values, de- formations and distributions of the result.