多跨充液管道的振动特性分析

Chinese Journal of Ship Research(2008)

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Abstract
考虑管道与液体之间的泊松耦合与结合部耦合,推导了低频情况下的充液直管轴向、横向振动传递矩阵与刚性支撑的点距阵。使用传递矩阵法计算两种边界条件下单跨和多跨充液管道的模态频率及模态振型。结果表明,在充液管道振动分析中,流固耦合作用不能忽略,多跨管道系统由于刚性支撑的加入使系统频率增加。
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Key words
vibration characterisitics,fluid-structure interaction,transfer matrix method,multi-span liquid-filled pipe,modal analysis
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