机构地区: 西北工业大学
出 处: 《航空动力学报》 1996年第1期97-99,共3页
摘 要: 针对已有的复模态摄动法不能唯一确定特征向量的所有摄动项这一缺陷,通过引进一个非常简单的范化条件,并采用常规的双正交条件,就很方便地导出了孤立特征值情形的复模态矩阵摄动公式。本文是对复模态矩阵摄动法的进一步补充和完善。 There exists an imperfection that perturbtaion terms of eigenvectors can not be uniquely determined by the now available perturbtaion methods for complex modes.To this end,very simple normalization conditions are introduced and the well known bi-orthogonality conditions are employed.As a result,matrix perturbation formulas have been completely derived for the case of distinct eigenvalues.