In this paper, HBM method and numerical method are utilized to study a mechanical system with clearance. According to the analysis, it is found that some peaks exist in some frequencies which are odd times of the exciting frequency.

• 用谐波平衡方法和数值积分方法 ,分析了受单频激励的含间隙机械系统的动力学响应 ,发现在频域中存在多个峰值 ,其对应的频率值为激励频率的奇数倍。