Non-stationary flow forces for the numerical simulation of aeroelastic instability of bridge decks

被引：42
|
作者：
Borri, C
Costa, C
Zahlten, W
机构：
[1] Univ Florence, Dipartimento Ingn Civile, I-501420 Florence, Italy
[2] BUGH Wuppertal, Inst Baumech, D-42285 Wuppertal, Germany
来源：
COMPUTERS & STRUCTURES | 2002年 / 80卷 / 12期
关键词：
non-linear dynamics; flutter instability; aeroelastic derivatives; indicial functions;
D O I：
10.1016/S0045-7949(02)00066-4
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
The aeroelastic wind forces acting on a streamlined bridge deck are analytically modeled and implemented in a finite element code for the investigation of aeroelastic instability and for structural analysis in non-linear dynamics. The present paper extends a previously introduced model, fully in the time domain, taking into account the "memory effect" of the aeroelastic processes, in order to reduce the computational effort. The implementation is tested on a two-DOF system and on a suspension bridge model. (C) 2002 Elsevier Science Ltd. All rights reserved.
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页码：1071 / 1079
页数：9
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