| 飞机整体油箱的液固耦合振动计算 |
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| 引用本文： | 毛志祥,杨觉敏.飞机整体油箱的液固耦合振动计算[J].航空学报,1990,11(11):589-594. |
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| 作者姓名： | 毛志祥 杨觉敏 |
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| 作者单位： | 南昌飞机公司
(毛志祥)，南昌飞机公司(杨觉敏) |
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| 摘 要： | 本文对拟弹性法进行了扩充,使其能解三维复杂结构的液固耦合振动问题,并对飞机整体油箱进行计算。计算与试验结果对比,证明扩展了的拟弹性法,能用于复杂结构的液固耦合振动计算。由于离散化技术的误差,计算中出现了虚假频率,本文提出了区分虚假频率的方法。
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| 关 键 词： | 飞机整体油箱 液固耦合振动 拟弹性法 虚假频率 |
NUMERICAL ANALYSIS OF SOLID-FLUID INTERACTIVE VIBRATION OF AN AIRCRAFT INTEGRAL TANK |
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| Nanchang Aircraft Manufacturing Company Mao Zhishang and Yang Juemin.NUMERICAL ANALYSIS OF SOLID-FLUID INTERACTIVE VIBRATION OF AN AIRCRAFT INTEGRAL TANK[J].Acta Aeronautica et Astronautica Sinica,1990,11(11):589-594. |
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| Authors: | Nanchang Aircraft Manufacturing Company Mao Zhishang and Yang Juemin |
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| Institution: | Nanchang Aircraft Manufacturing Company Mao Zhishang and Yang Juemin |
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| Abstract: | In this paper, the Pseudo Elastic Method is extended to apply to these dimensional complex structure analysis, i.e.solid-fluid interactive vibration of an aircraft integral tank. The results of calculations is compred with that of tests. It is deemed that the extended Pseudo Elastic Method can be combined with general purpose finite element programs to analyze solid-fluid interactive vibration of complex structures. Because of some errors of discretization technique, some spurious frequencies appear in the calculated result. A new way to distinguish spurious frequency is also proposed in this paper. |
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| Keywords: | aircraft integral tank solid-fluid interactive vibration Pseudo Elastic Method spurious frequency |
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