The subspaceiterationmethod is used in several general purpose structural analysis programs for the solution of the eigenpairs.
求解大型结构矩阵低阶特征值和特征向量，子空间迭代法是有效方法之一，而且其应用也比较普遍。
2
The convergence rate of subspaceiterationmethod used to compute eigenvalues problem is confined when the distribution range of eigenvalues is large.
而求解特征值问题的子空间迭代法，当矩阵的特征值的分布范围较大时，其收敛速度会受到限制。
3
The first 20th order natural frequencies and vibration modes of the single layer spherical dome are obtained, and its vibration law is also analyzed by using subspaceiterationmethod.