| 基于MSC Nastran的水下环肋圆柱壳体振动模态计算方法 |
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| 引用本文： | 刘晓欧,尹韶平,严光洪.基于MSC Nastran的水下环肋圆柱壳体振动模态计算方法[J].计算机辅助工程,2006,15(Z1):124-127. |
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| 作者姓名： | 刘晓欧 尹韶平 严光洪 |
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| 作者单位： | 西安精密机械研究所,陕西,西安,710119 |
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| 摘 要： | 介绍应用MSC Nastran进行水下振动模态的计算方法.着重介绍虚拟质量法,壳体、环向加强筋、楔环联结方式的有限元建模简化方法以及集中载荷的有限元加载处理方法. 通过对比计算结果与试验结果,验证应用MSC Nastran计算水下模态工程上的可行性.
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| 关 键 词： | MSC Nastran 虚拟质量 水下振动模态 环向加强筋 |
| 文章编号： | 1006-0871(2006)S1-0124-04 |
Underwater Vibration Modal Calculation of the Ring-stiffened Cylindrical Shell with MSC Nastran |
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| LIU Xiaoou,YIN Shaoping,YAN Fuanghong.Underwater Vibration Modal Calculation of the Ring-stiffened Cylindrical Shell with MSC Nastran[J].Computer Aided Engineering,2006,15(Z1):124-127. |
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| Authors: | LIU Xiaoou YIN Shaoping YAN Fuanghong |
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| Abstract: | The method of calculate underwater vibration modal with MSC Nastran is introduced. The virtual mass method , the method of setting up model of shell, circumferential stiffening ribs and coupling the wedge link mechanism by finite element, and the method of load on concentrated load is emphatically discussed. By comparing the results of calculation with the results of the experiment, the calculation of underwater vibration modal with MSC Nastran is verified to be fensible in engineering . |
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| Keywords: | MSC Nastran virtual mass underwater vibration modal circumferential stiffening rib |
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