| 具有重特征值的弱阻尼系统的摄动法 |
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| 引用本文： | 倪卫明 王文亮. 具有重特征值的弱阻尼系统的摄动法[J]. 复旦学报(自然科学版), 1995, 34(1): 69-77 |
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| 作者姓名： | 倪卫明 王文亮 |
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| 作者单位： | 复旦大学应用力学系 |
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| 摘 要： | 利用约束广义逆方法，导出弱阻尼系统摄动法，该方法可处理原系统有重频时的一般情况，并且只需待摄退化模态信息，它是Ｋｗａｋ近期工作的改进和推广。
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| 关 键 词： | 摄动法 重特征值 退化性模态 弱阻尼系统 |
A perturbation method for weakly damped systems repeated eigenvalues |
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| Ni Weiming, Wang Wenliang. A perturbation method for weakly damped systems repeated eigenvalues[J]. Journal of Fudan University(Natural Science), 1995, 34(1): 69-77 |
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| Authors: | Ni Weiming Wang Wenliang |
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| Affiliation: | Department of Applied Mechanics |
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| Abstract: | his paper presents a perturbation method for weakly damped systems by confined generalized inverse technique. The present method can deal with the case in which the original system has repeatal eigenvalues, and requires only the knowlege of , not the complete original eigensolution set, those eigenpairs tO be perturbed. This paper developed the recent work of Kwak. |
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| Keywords: | perturbation method repeated eigenvalue degenerate modes elastic flexibility matrice |
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