Application of block Lanczos method for analysis of cyclic symmetric structures

✍ Scribed by P. Balasubramanian; J. G. Jagadeesh; H. K. Suhas; V. Ramamurti

• Publisher: John Wiley and Sons
• Year: 1993
• Tongue: English
• Weight: 537 KB
• Volume: 36
• Category: Article
• ISSN: 0029-5981
• DOI: 10.1002/nme.1620360207

✦ Synopsis

In this study the free vibration of circumferenlially periodic structures has been analysed using the block Lanczos method in a semi complex domain for extracting real natural frequencies and complex mode shapes. The influence of the number of vectors in the block and also the effect of renumbering of nodes, depending on whether they are internal, adjacent or boundary nodes, on the CPU time are studied. The efficiency of the present method is compared with the subspace iteration schemes.