摘要
讨论了大型结构动态分析中求解特征值问题的一种有效方法———加速子空间迭代法 .该法在迭代过程中通过省略某些迭代步骤中的瑞利———李兹分析 ,使得求解收敛速度加快 .通过一些实例对子空间迭代法和加速子空间迭代法进行了计算对比 ,结果表明 。
Accelerated subspace iteration, an effective method for eigenvalue problems of large structure is discussed. A higher convergence rate is obtained by omitting some of the Rayleigh-Ritz procedure from certain iteration steps. Some examples are calculated by using both the subspace iteration method and the accelerated method. It shows a significant reduction of CPU time if the problem is very large. Numerical results show that the accelerated subspace iteration is very efficient and numerically stable.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2002年第4期560-562,共3页
Journal of Harbin Institute of Technology
