Complex dynamics of a nonlinear aerospace structure: numerical continuation and normal modes

被引：41

作者：

Renson, L. ^{[1
]}

Noel, J. P. ^{[1
]}

Kerschen, G. ^{[1
]}

机构：

[1] Univ Liege, Space Struct & Syst Lab, Aerosp & Mech Engn Dept, Liege, Belgium

来源：

NONLINEAR DYNAMICS | 2015年 / 79卷 / 02期

关键词：

Aerospace structure; Piecewise-linear nonlinearities; Numerical continuation; Nonlinear normal modes; Modal interactions; MODAL-ANALYSIS; PERIODIC-ORBITS; IDENTIFICATION;

D O I：

10.1007/s11071-014-1743-0

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper investigates the dynamics of a real-life aerospace structure possessing a strongly nonlinear component with multiple mechanical stops. A full-scale finite element model is built for gaining additional insight into the nonlinear dynamics that was observed experimentally, but also for uncovering additional nonlinear phenomena, such as quasiperiodic regimes of motion. Forced/unforced, damped/undamped numerical simulations are carried out using advanced techniques and theoretical concepts such as numerical continuation and nonlinear normal modes.

引用

页码：1293 / 1309

页数：17

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