Investigation of Convergence of Starting Iteration Vectors for Calculating Natural Modes

고유모드 계산을 위한 초기 반복벡터의 수렴성 연구

Two modified versions of subspace iteration method using accelerated starting vectors are proposed to efficiently calculate free vibration modes of structures. Proposed methods employ accelerated Lanczos vectors as starting iteration vectors in the subspace iteration method. To investigate the efficiency of proposed methods, two numerical examples are presented.