| 非线性约束粘弹性输液管的动力特性分析 |
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| 引用本文： | 倪樵,黄玉盈.非线性约束粘弹性输液管的动力特性分析[J].华中科技大学学报(自然科学版),2001,29(2):87-89. |
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| 作者姓名： | 倪樵 黄玉盈 |
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| 作者单位： | 华中科技大学土木工程学院 |
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| 基金项目： | 国家自然科学基金资助项目! (19872 0 2 5 ) |
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| 摘 要： | 应用增量谐波平衡法分析具有非线性弹性约束的Kelvin Voigt型粘弹性材质输液管的振动问题 ,着重研究了输液管的幅频特性以及流速、粘弹性系数和管液质量比等系统参数对其动力特性的影响 .结果显示输液管的振幅由于液体流速的作用将会产生较大的脉冲峰值
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| 关 键 词： | 非线性振动 输液管 粘弹性材料 增量谐波平衡法 |
| 文章编号： | 1000-8616(2001)02-0087-03 |
| 修稿时间： | 2000年8月31日 |
Dynamic Analysis of Restrained Viscoelastic Pipe Conveying Fluid |
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| Ni Qiao,Huang Yuying.Dynamic Analysis of Restrained Viscoelastic Pipe Conveying Fluid[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2001,29(2):87-89. |
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| Authors: | Ni Qiao Huang Yuying |
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| Abstract: | Incremental harmonic balance method (IHBM) is applied to nonlinear dynamic analysis of a Kelvin-Voigt type viscoelastic cantilevered pipe conveying fluid with nonlinear motion-limiting constraints in this study. The analysis of amplitude-frequency characteristic of the system influenced by several parameters (flow velocity, mass ratio, viscoelastic coefficient and so on) is focused on. A unstable phenomena-a large pulse summit value at certain frequency of the amplitude of vibration excited by inner flow velocity, which are proved to be important for this kind of structure, are presented in the numerical results. |
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| Keywords: | nonlinear vibration pipe conveying fluid viscoelastic material incremental harmonic balance method (IHBM) |
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