具有复合材料层的谐波减速器柔轮的应力分析

Stress analysis of flexspline in harmonic gear reducer with composite material layer

谐波减速器在动力传递过程中,柔轮的应力状态相当复杂,导致柔轮易出现开裂等问题。为解决这一难题,利用显著各向异性的复合材料,在柔轮上进行了复合材料层设计,分别对具有复合材料层结构的柔轮和不含复合材料层结构的同一型号柔轮进行了瞬态应力分析。通过分析可知,在对柔轮进行了复合材料层设计后,柔轮的最大Von Mises应力由原来的849.4MPa减小为742.6MPa。研究结果有助于提高柔轮的使用寿命。

The stress state of harmonic gear reducer is quite complicate in the process of transmitting power ,it is contributed to cracked of the flexspline .To solve the problem ,composite layer which has anisotropy feature is designed in flexspline .The transi-ent stress analysis is investigated on the flexspline with composite layer and original structure respectively .Compared with the pri-mary structure which the maximum Von Mises of stress is 849.4MPa,the value of the flexspline using composite layer is reduced to 742.6MPa.The research results can be aided to improve the life span of flexspline .