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机械系统内部或边界间隙引起的碰撞振动是机械动力学的研究热点之一。该领域的近期研究成果有:(1)碰撞振动的间断和连续分析,包括稳定性分析、奇异性问题、擦边诱发分叉、非线性模态等研究;(2)碰撞振动控制,特别是不连续系统的控制方法和控制混沌碰撞振动;(3)碰撞振动分析的数值方法;(4)碰撞振动实验研究。
Crash vibration caused by mechanical system’s internal or boundary clearance is one of the hot topics in mechanical dynamics. Recent research achievements in the field include: (1) intermittent and continuous analysis of collision vibration, including stability analysis, singularity problems, wiping edge induced bifurcation and nonlinear modalities; (2) collision vibration control, especially Discontinuous system control method and control of chaotic impact vibration; (3) Numerical method of collision vibration analysis; (4) Experimental study of collision vibration.