Dynamics Modeling of Harmonic Reducer and Analysis of Flexspline Fatigue

摘要

The paper takes the static and dynamic error of the harmonic gear drive into a full account, bases on the harmonic drive model to establish a system dynamics model and simplifies the infinite degree of freedom of harmonic gear driving system as a multi-degree-of-freedom system to derive the dynamic response to the stimulus under the physical coordinates. At the same time, the transfer function matrix and the frequency response function matrix after was obtained based on the multi-degree-of-freedom system. What is more, ADAMS software was used to establish a holistic rigid-flexible coupling model whose verification was done and the ANSYS Workbench software was used to judge the position where the flexspline is prone to suffer from fatigue by means of the transient dynamic model.