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On the Influence of Damping Affected to the Elastic Stability of the Structures Subjected to the Nonconservative Loads

Memoirs of the Faculty of Engineering, Yamaguchi University Volume 27 Issue 1 Page 81-88
published_at 1976
KJ00000156137.pdf
[fulltext] 476 KB
Title
非保存力を受ける骨組構造物の弾性安定性に及ぼす減衰の影響について
On the Influence of Damping Affected to the Elastic Stability of the Structures Subjected to the Nonconservative Loads
Creators Aida Tadayoshi
Creators Namiki Kenichi
Source Identifiers
In this paper applying the analytical method of nonconservative elastic stability of framed structure, which has been represented by authors in Ref. 7), the influence of damping affected to the elastic stability is reexamined. It is assumed that damping force proportional to a derivative of displacement with respect to time is considered and damping matrix can be diagonalized by modal matrix. It is confirmed that there is no effect of damping on the critical load of a elastic system which a divergence instability phenomenon is happened in the case without damping and, in a elastic system which a flutter instability phenomenon is happened in the case without damping and, in a elastic system which a flutter instability phenomenon is happened in the case without damping, i.e., Beck's system, damping have a stabilizing effect if each element of the diagonalized damping matrix are equal and it have a destabilizing effect if elements of damping matrix mentioned above are different from each other. But this study make it clear that, in the problem of a column with nonconservative torque, damping have a stabilizing effect if it is large even through elements of damping matrix mentioned above are different from each other.
Subjects
建築学 ( Other)
Languages jpn
Resource Type departmental bulletin paper
Publishers 山口大学工学部
Date Issued 1976
File Version Version of Record
Access Rights open access
Relations
[ISSN]0372-7661
[NCID]AN00244228
Schools 工学部