ABOUT THE STABILITY OF NONCONSERVATIVE UNDAMPED ELASTIC SYSTEMS: SOME NEW ELEMENTS

被引：6

作者：

Lerbet, Jean ^{[1
]}

Absi, Elie ^{[2
]}

Rigolot, Alain ^{[3
]}

机构：

[1] Univ Evry Val DEssone, IBISC, F-91020 Evry, France

[2] Ecole Cent Paris, F-75015 Paris, France

[3] LMM, F-75005 Paris, France

来源：

INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS | 2009年 / 9卷 / 02期

关键词：

Nonconservative systems; static stability; dynamic stability; stiffness matrix; mixed perturbation; INSTABILITY; BODIES;

D O I：

10.1142/S0219455409003065

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

It is well-known that the domains of static stability and dynamic stability (even for a linear approach) do not match each other when the system is no more conservative and the dynamic approach is usually privileged, meaning that the dynamic stability domain is included in the static one. Following previous works proposing a new criterion of static stability of nonconservative systems and prolonging a paper of Gallina devoted to linear dynamic instability (flutter), we show in this paper some remarkable relations between the two approaches: contrary to the common thought, the new static stability criterion implies partially the dynamic one.

引用

页码：357 / 367

页数：11

共 11 条

[1] In reply to some remarks by N. Challamel on our paper "Instability of elastic bodies" [J].