| 基于ANSYS有限元分析的模态质量计算方法 |
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| 引用本文： | 商霖.基于ANSYS有限元分析的模态质量计算方法[J].导弹与航天运载技术,2011(3):55-57. |
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| 作者姓名： | 商霖 |
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| 作者单位： | 中国运载火箭技术研究院,北京,100076 |
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| 摘 要： | 基于动能公式的演化推导,提出一种计算模态质量的新方法。该方法操作方便,快速有效,适用于任何有限元模型模态质量的计算。通过与模态质量经典公式计算结果的比较,二者数值完全一致。
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| 关 键 词： | 模态质量 经典公式 动能定理 质量矩阵 弹簧-质量模型 |
Modal Mass Computation Based on ANSYS Finite Element Analysis |
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| Shang Lin.Modal Mass Computation Based on ANSYS Finite Element Analysis[J].Missiles and Space Vehicles,2011(3):55-57. |
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| Authors: | Shang Lin |
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| Affiliation: | Shang Lin(China Academy of Launch Vehicle Technology,Beijing,100076) |
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| Abstract: | With the evolvement of kinetic energy equation,a novel method to compute the modal mass is presented.This method is simple and effective,suitable for any modal mass computation of Finite Element Analysis(FEA) model.The results obtained from this method are the same with those from classical equation,which proves that this method is valid. |
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| Keywords: | Modal mass Classical equation Energy theorem Mass matrix Spring mass model |
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