关键词: 柔轮, 谐波齿轮, 有限元法

Abstract: 　 On the basis of Membrane Shell Theory, a finite element modal is set up to calculate natural frequencies and mode shapes of flexspline of a harmonic drive. After being compared the calclating result with the experimental result, we have found that the one is very agreement With the other. Then it proves that the theory and the modal we are based on are very –exact. With changes of structural dimensions of flexspline, we carried out a series of calculations to find out which dimension has a great affect on natural frequences of flexspline. This is of a great practical values to designers.

Key words: Finite element method, Flexspline, Harmonic gear