Approach of galloping vibrations using a time delayed force modelling and experimental validation

被引：4

作者：

Hémon, P ^{[1
]}

机构：

[1] Inst Aerotech, F-78210 St Cyr Ecole, France

来源：

COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE B-MECANIQUE PHYSIQUE ASTRONOMIE | 1999年 / 327卷 / 07期

关键词：

aeroelasticity; galloping; aerodynamics; vibrations;

D O I：

10.1016/S1287-4620(99)80120-3

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We consider the case of elongated cylinders submitted to a cross-flow We propose a time delayed force model for the galloping oscillations for which the linear study allows to calculate the critical velocity with quasi-steady coefficients. The phase delay between force and position is based on the Strouhal number of the cylinder measured in static conditions. The experimental validation is presented on square and rectangular sections cylinders. (C) Academie des sciences/Elsevier Paris.

引用

页码：679 / 684

页数：6

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[2]

BOURDEIX MT, 1998, 2 E EUR C WIND ENG P, P233

[3]

DENHARTOG JP, 1985, MECH VIBRATIONS, P299

[4] Oscillating rectangular and octagonal profiles: Modelling of fluid forces [J].