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双线性双滞后环系统非线性振动
引用本文:吴志强,郝颖,郭凯.双线性双滞后环系统非线性振动[J].振动与冲击,2011,30(11):1-3.
作者姓名:吴志强  郝颖  郭凯
作者单位:天津大学 机械工程学院力学系,天津 300072
基金项目:国家自然科学基金,教育部博士点基金
摘    要:研究含双线性双环滞后单自由度系统非线性振动的响应特点。先用平均法得到主共振情况下系统的幅频响应方程。然后讨论了外激励振幅变化对幅频响应的影响。给出了模式变化的临界参数条件,找到了四种不同类型的幅频响应并分析了其特点。在四种响应中,只有一种能充分发挥滞后环的耗能作用,适于减振设计。

关 键 词:双线性双环滞后    幅频响应    减振  
收稿时间:2010-8-9
修稿时间:2010-11-15

Nonlinear vibration of double-loop bilinear hysteretic system
WU Zhi-qiang,HAO Ying,GUO Kai.Nonlinear vibration of double-loop bilinear hysteretic system[J].Journal of Vibration and Shock,2011,30(11):1-3.
Authors:WU Zhi-qiang  HAO Ying  GUO Kai
Affiliation:Tianjin University, Tianjin 300072, China
Abstract:Nonlinear vibrations of a single-degree-freedom system involving hysteresis with two loops were investigated.The frequency response equation was derived for system under primary resonance by applying the averaging method and the effects of excitation magnitude were studied.It is found that there will appear four types of frequency responses under different levels of excitation.It is also revealed and verified by numerical simulation that only one type among them is suitable for vibration reduction design.
Keywords:double-loop bilinear hysteresis  frequency-response  vibration reduction  
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