| 约束层阻尼圆柱壳的自由振动 |
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| 引用本文： | 曹雄涛,张志谊,华宏星.约束层阻尼圆柱壳的自由振动[J].应用数学和力学,2011,32(4). |
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| 作者姓名： | 曹雄涛 张志谊 华宏星 |
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| 作者单位： | 上海交通大学机械系统与振动国家重点实验室,上海,200240 |
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| 摘 要： | 给出了被动约束层阻尼圆柱壳(PCLD)的自由振动特性.波传播法被用来求解两端简支的PCLD圆柱壳的振动,而不是用有限元法、传递矩阵法和Rayleigh-Ritz法.基于Sanders薄壳理论,导出了PCLD正交各向异性圆柱壳的控制方程.数值结果表明当前的方法要比目前其它方法有效.讨论了粘弹性层和约束层的厚度,正交各向异性约束层的弹性模量比率和粘弹性层的复剪切模量对频率参数和损失因子的影响.
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| 关 键 词： | 夹心壳 圆柱壳 粘弹性材料 约束层阻尼 自由振动 |
Free Vibration of Circular Cylindrical Shell With Constrained Layer Damping |
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| CAO Xiong-tao,ZHANG Zhi-yi,HUA Hong-xing.Free Vibration of Circular Cylindrical Shell With Constrained Layer Damping[J].Applied Mathematics and Mechanics,2011,32(4). |
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| Authors: | CAO Xiong-tao ZHANG Zhi-yi HUA Hong-xing |
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| Institution: | CAO Xiong-tao,ZHANG Zhi-yi,HUA Hong-xing(State Key Laboratory of Mechanical System and Vibration,Shanghai Jiaotong University,Dongchuan Road 800,Shanghai 200240,P.R.China) |
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| Abstract: | The free vibration characteristic of circular cylindrical shell with passive constrained layer damping(PCLD) was presented.Wave propagation approach rather than finite element method,transfer matrix method and Rayleigh-Ritz method were used to solve the vibration of PCLD circular cylindrical shell with simply supported boundary condition at two ends.The governing equations of motion for the orthotropic cylindrical shell with PCLD were derived on the base of Sanders' thin shell theory.Numerical results show ... |
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| Keywords: | sandwich shell cylindrical shell viscoelastic material constrained layer damping free vibration |
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