| 基于波传播方法的边界条件对圆柱壳振动特性的影响分析 |
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| 引用本文： | 马旭,杜敬涛,杨铁军,刘志刚.基于波传播方法的边界条件对圆柱壳振动特性的影响分析[J].振动工程学报,2009,22(6). |
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| 作者姓名： | 马旭 杜敬涛 杨铁军 刘志刚 |
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| 作者单位： | 哈尔滨工程大学动力与能源工程学院,黑龙江哈尔滨,150001 |
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| 摘 要： | 在波传播分析方法基础上,采用一种改进傅立叶级数的方法建立了弹性约束边界条件下圆柱壳结构模态分析模型,结合模态叠加理论,给出了圆柱壳结构在任意径向点力激励下的振动响应.通过与商业分析软件ANSYS的结果比较验证了本文方法的高效性与精确性,随后详细分析了边界约束刚度对圆柱壳结构自由振动特性和结构振动响应的影响,并给出了刚度影响的一般性规律.
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| 关 键 词： | 圆柱壳 波传播分析法 弹性约束边界 结构导纳 |
Analysis of influence of boundary conditions on cylindrical shell dynamics based on wave propagation approach |
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| MA Xu,DU Jing-tao,YANG Tie-jun,LIU Zhi-gang.Analysis of influence of boundary conditions on cylindrical shell dynamics based on wave propagation approach[J].Journal of Vibration Engineering,2009,22(6). |
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| Authors: | MA Xu DU Jing-tao YANG Tie-jun LIU Zhi-gang |
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| Abstract: | Based on the wave propagation approach, combined with an improved Fourier Series method, the modal analysis model for the cylindrical shell structure is developed. Modal superposition theory is subsequently employed to obtain the vi-brational responses of the cylindrical shell subjected to the any radial excitation. Through the comparison with results from commercial software ANSYS, the effectiveness and accuracy of the current method is validated. Then the effect of the boundary restrain stiffnesses on the free vibration as well as the dynamic response of the cylindrical shell are analyzed ? and the general rule for the effect of stiffness is also presented. |
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| Keywords: | cylindrical shell wave propagation approach general boundary conditions mobility |
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