壁板颤振的分析模型、数值求解方法和研究进展  

ANALYTICAL MODELS,NUMERICAL SOLUTIONS AND ADVANCES IN THE STUDY OF PANEL FLUTTER

作　　者：杨智春[1] 夏巍[1,2] 

机构地区：[1]西北工业大学航空学院,西安710072 [2]华中科技大学土木工程与力学学院,武汉430074

出　　处：《力学进展》2010年第1期81-98,共18页Advances in Mechanics

基　　金：国家自然科学基金(10672135);教育部新世纪优秀人才支持计划(NCET-04-0965)资助项目~~

摘　　要：研究壁板颤振问题需要计及大挠度变形下结构的几何非线性效应,不仅涉及气动弹性稳定性,而且关心结构的非线性颤振响应.该文回顾了飞行器壁板颤振问题的国内外研究情况,评述了在壁板颤振研究中采用的分析模型、数值求解方法以及在理论分析和试验方面的研究成果,并提出了今后壁板颤振问题的4个研究方向.Panel flutter is an aeroelastic phenomenon occurring on the aircraft skin. Acting as local structure components on the surface of aircraft, only one surface of panel is subjected to airflow. Because of the special configuration of panel structure, the bending deflection of panel is strongly confined by its geometrical boundaries, and panel flutter usually exhibits nonlinear behavior with limited amplitude which has the same order as the panel thickness. Generally, the panel flutter will cause fatigue damage rather than rapid destructive failure of the structure. Therefore, geometrical nonlinearity effect stemming from large deflection should be considered in the study of panel flutter problem. For panel flutter problem of hypersonic aircraft, thermal stress induced by aerodynamic heating effect can reduce the bending load carrying capacity of panel, thus leads to thermal buckling, thermal flutter and more complex dynamic behaviors. The study on panel flutter, especially on panel thermal flutter has both the academic research and engineering application significance. Panel thermal flutter analysis considering structural nonlinearity is a widely concerned research topic in recent years. In this paper, a historic review of panel flutter problems is presented, then the analytical models, numerical solutions of panel flutter are summarized, and theoretical and experimental results of panel flutter are also elucidated. Finally four topics are suggested for future research.

关 键 词：壁板颤振 极限环颤振 几何非线性 热颤振 

分 类 号：V215.3[航空宇航科学与技术—航空宇航推进理论与工程] TE972.2[石油与天然气工程—石油机械设备]