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

被引：0
作者：
L. Renson
J. P. Noël
G. Kerschen
机构：
[1] University of Liège,Space Structures and Systems Laboratory, Aerospace and Mechanical Engineering Department
来源：
Nonlinear Dynamics | 2015年 / 79卷
关键词：
Aerospace structure; Piecewise-linear nonlinearities ; Numerical continuation; Nonlinear normal modes; Modal interactions;
D O I：
暂无
中图分类号：
学科分类号：
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
收藏
页码：1293 / 1309
页数：16
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共 59 条
[1]  
Oueini SS(2000)Analysis and application of a nonlinear vibration absorber J. Vib. Control 6 999-1016
[2]  
Nayfeh AH(2007)Nonlinear energy pumping under transient forcing with strongly nonlinear coupling: theoretical and experimental results J. Sound Vib. 300 522-551
[3]  
Gourdon E(2011)Identifying and quantifying structural nonlinearities in engineering applications from measured frequency response functions Mech. Syst. Signal Process. 25 1011-1027
[4]  
Alexander NA(2012)Identification of weak non-linearities within complex aerospace structures Aerosp. Sci. Technol. 23 53-62
[5]  
Taylor CA(2009)Identification of a nonlinear wing structure using an extended modal model J. Aircr. 46 1614-1626
[6]  
Lamarque CH(2007)Advanced modeling of underplatform dampers for analysis of bladed disk vibration J. Turbomach. 129 143-150
[7]  
Pernot S(2007)Qualitative analysis of forced response of blisks with friction ring dampers Eur. J. Mech. A/Solids 26 676-687
[8]  
Carrella A(2010)Parametric study for dynamics of spacecraft with local nonlinearities AIAA J. 48 1700-1707
[9]  
Ewins DJ(2011)Numerical continuation applied to landing gear mechanism analysis J. Aircr. 48 1254-1262
[10]  
Fuellekrug U(2014)Complex dynamics of a nonlinear aerospace structure: experimental identification and modal interactions J. Sound Vib. 333 2588-2607
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