| 两端铰支输流管道固有频率的研究 |
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| 引用本文： | 刘连平,金基铎. 两端铰支输流管道固有频率的研究[J]. 沈阳航空工业学院学报, 2008, 25(5) |
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| 作者姓名： | 刘连平 金基铎 |
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| 作者单位： | 沈阳航空工业学院航空宇航工程学院,辽宁,沈阳,110136 |
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| 摘 要： | 利用复模态分析方法和Galerkin方法研究了两端铰支输流管横向振动对其固有频率的影响.通过数值方法绘出系统的前两阶固有频率随流体速度的变化情况.利用数值算例分析了复模态分析方法、二阶Galerkin截断和四阶Galerkin截断方法对固有频率的影响.
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| 关 键 词： | 复模态分析方法 Galerkin方法 固有频率 输流管道 |
Research on natural frequency of pinned-pinned pipe conveying fluid |
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| LIU Lian-ping,JIN Ji-duo. Research on natural frequency of pinned-pinned pipe conveying fluid[J]. Journal of Shenyang Institute of Aeronautical Engineering, 2008, 25(5) |
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| Authors: | LIU Lian-ping JIN Ji-duo |
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| Affiliation: | Aviation and Space Engineering School;Shenyang Institute of Aeronautical Engineering;Liaoning Shenyang 110136 |
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| Abstract: | The transverse vibrations of is investigated by the complex mode method and Galerkin method.The numerical examples show the first two natural frequencies affected by the fluid flowing speed.The influence of the complex mode method,two order Galerkin method and four order Galerkin method to the natural frequencies are also simulated. |
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| Keywords: | complex mode method Galerkin method natural frequency pipe conveying fluid |
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