摘要
含有间隙结构的气动弹性系统非线性颤振问题是飞行器气动弹性力学工程领域的研究热点和难点。根据目前现代飞行器结构轻量化设计及更大机动性能的发展趋势,非线性颤振问题日益突出,直接关系到飞行器的安全与性能。因此综述了近几十年来带间隙非线性的非线性气动弹性力学模型、非线性系统辨识及非线性动力学与控制等问题的研究进展。在已有相关研究成果的基础上提出了今后值得进一步解决和关注的研究问题。
The nonlinear flutter problem of aeroelastic system with freeplay nonlinearity has become one of the hottest and most challenging topics in the engineering field of aircraft aeroelasticity.Based on the development of lightweight structure design and high maneuver performance for modern aircrafts,nonlinear effect become more remarkable,which can affect the flight security and performance of aircrafts.In this paper,researches activities on nonlinear flutter and control of aeroelastic systems with freeplay nonlinearity are reviewed,including nonlinear aeroelastic model,nonlinear system identification and nonlinear dynamic behaviors.Furthermore,the existing research results are discussed and some suggestions about the development trend of nonlinear flutter are given.
作者
李家旭
田玮
谷迎松
LI Jia-xu;TIAN Wei;GU Ying-song(Shaanxi Aircraft Industry Group Corporation of Aviation Industry Corporation of China,Hanzhong,723213,China;Institute of Structural Dynamics and Control,Northwestern Polytechnical University,Xi'an 710072,China)
出处
《强度与环境》
CSCD
2021年第4期18-25,共8页
Structure & Environment Engineering
基金
国家自然科学基金资助项目(51375490)。
关键词
非线性颤振
间隙非线性
极限环振荡
分岔
颤振抑制
Aeroelastic
Freeplay nonlinearity
All-movable fin
Limit cycle oscillations
Chaos
