摘要
介绍了一个变奇异阵为非奇异阵的数学结论。然后利用这个“结论”发展了一种精确的过渡动柔度式和一种近似简化的过渡动柔度式。特别是后者为λ的一种混合幂级数，故而当它用于很多个特征向量的导数计算时，其计算效率便远远高于现有其它方法。
A mathematical conclusion on changing a singular matrix to nonsingular matrix is presented in this paper. Then an accurate interim dynamic flexibility formula and a simplified interim dynamic flexibility formulae are developed by using the 'conclusion'. Especially the simplified dynamic flexibility formula is used to compute the derivatives of many eigenvectors, and the costed computer time is tremendously less than that of other method.
出处
《导弹与航天运载技术》
1997年第3期24-32,共9页
Missiles and Space Vehicles
