| 带滞变支撑悬臂输流管的稳定性 |
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| 引用本文： | 黄茜,臧峰刚,张毅雄.带滞变支撑悬臂输流管的稳定性[J].西南交通大学学报,2011(5):841-846. |
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| 作者姓名： | 黄茜 臧峰刚 张毅雄 |
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| 作者单位： | 核反应堆系统设计技术重点实验室; |
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| 摘 要： | 为了研究带滞变支撑输流管的非线性动力特性,基于Hamilton原理将滞变支撑的虚功引入管道的能量方程,导出了该系统的动力学方程,编制了相应的数值计算程序,研究了输流管的复杂动力响应及滞变特性参数对系统动力特性的影响.结果表明:带滞变支撑的悬臂输流管表现出极其复杂的动力学行为,当无量纲流速相继达到9.5、14.6、15.5与17.2时,结构响应将分别呈现屈曲、颤振、混沌以及跳跃现象;支撑的耗能特性越强,系统的复杂响应参数范围越宽.
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| 关 键 词： | 流致振动 滞变支撑 悬臂输流管 结构稳定性 |
Stability Analysis of Cantilevered Pipes Conveying Fluid with Hysteretic Supports |
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| HUANG Qian,ZANG Fenggang,ZHANG Yixiong.Stability Analysis of Cantilevered Pipes Conveying Fluid with Hysteretic Supports[J].Journal of Southwest Jiaotong University,2011(5):841-846. |
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| Authors: | HUANG Qian ZANG Fenggang ZHANG Yixiong |
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| Institution: | HUANG Qian,ZANG Fenggang,ZHANG Yixiong (Science and Technology on Reactor System Design Technology Laboratory,Chengdu 610041,China) |
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| Abstract: | In order to study the nonlinear dynamic characteristics of a pipe conveying fluid with hysteretic supports,the hysteretic forces acting on the pipe was introduced into Hamilton's energy equation in the principle of virtual work,and the nonlinear dynamic equations of cantilevered pipes conveying fluid were derived.Then,numerical simulation was made to analyze the complex dynamic responses of the system and the effect of hysteretic characteristic parameters on the dynamic behaviors of the system.The results s... |
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| Keywords: | fluid-induced vibration hysteretic supports cantilevered pipes conveying fluid structural stability |
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