【摘 要】
：
对于艇用动力机械设备,正确建模是设备抗冲隔振设计中的一个重要步骤.当系统带有刚性限位装置时,设备可用刚体模拟,隔振器用弹簧力和阻尼力替代,则该系统具有三种非线性因素,
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对于艇用动力机械设备,正确建模是设备抗冲隔振设计中的一个重要步骤.当系统带有刚性限位装置时,设备可用刚体模拟,隔振器用弹簧力和阻尼力替代,则该系统具有三种非线性因素,本文针对这三种非线性因素究竟是否可以忽略开展定性及定量研究.在本文中,艇用动力机械设备抗冲隔振系统作为一个碰撞-振动-系统(Vibro-impact-sys-tem)研究,本文导出该系统的以碰撞-庞加莱-映射(Impact Poincaremap)描述的零级近似与一级近似模型.实例分析指出:零级近似模型掩盖了可能出现的混沌现象;同时,通过分岔图(Bifurcarion diagram)分析指出,限位器限制行程将影响分岔区域在图上的位置.
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