| 基础位移作用下悬挂弹簧的非线性固有振动 |
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| 引用本文： | 吴晓,罗佑新,杨立军,孙逢春.基础位移作用下悬挂弹簧的非线性固有振动[J].北京理工大学学报,2009,29(12):1041-1043. |
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| 作者姓名： | 吴晓 罗佑新 杨立军 孙逢春 |
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| 作者单位： | 1. 湖南文理学院,湖南,常德,415000
2. 北京理工大学,机械与车辆学院,北京,100081 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 研究基础位移作用下悬挂弹簧的非线性固有振动问题. 建立了基础位移作用下悬挂弹簧减振系统的非线性固有振动方程,采用L-P法推导出了悬挂弹簧非线性固有振动的近似解. 通过算例分析可知:随着基础位移激励频率的增大,悬挂弹簧减振系统时程曲线的振幅、振动周期降低,而基础位移激励振幅、悬挂弹簧减振系统的倾斜角增大,悬挂弹簧减振系统时程曲线的振幅也增大. 所以,悬挂弹簧几何非线性振动系统的减振效果优于弹簧垂安线性减振系统的减振效果.
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| 关 键 词： | 悬挂弹簧 几何非线性 减振系统 激励 |
| 收稿时间： | 1/8/2009 12:00:00 AM |
Analysis on the Vibration of Shock Absorber System with Pendulum Spring Under Foundation Displacement Excitation |
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| WU Xiao,LUO You-xin,YANG Li-jun and SUN Feng-chun.Analysis on the Vibration of Shock Absorber System with Pendulum Spring Under Foundation Displacement Excitation[J].Journal of Beijing Institute of Technology(Natural Science Edition),2009,29(12):1041-1043. |
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| Authors: | WU Xiao LUO You-xin YANG Li-jun and SUN Feng-chun |
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| Institution: | WU Xiao1,LUO You-xin1,YANG Li-jun1,SUN Feng-chun2(1.Hunan University of Arts , Sciences,Changde,Hunan 415000,China,2.School of Mechanical Engineering,Beijing Institute of Technology,Beijing 100081,China) |
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| Abstract: | Problems regarding nonlinear natural vibration of pendulum spring under foundation displacement excitation are studied.The nonlinear natural vibration equation is found for the shock absorber system with the pendulum spring under foundation displacement excitation.The approximate solution of nonlinear natural vibration for the shock absorber system with the pendulum spring is derived by L-P method.Conclusion through calculation analysis is obtained: the amplitude and frequency of time-history curve for the ... |
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| Keywords: | pendulum spring geometric nonlinearity shock absorber system excitation |
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