带间隙约束的二维悬臂亚音速壁板极限环颤振分析  

Limit Cycle Flutter Analysis of Two-Dimensional Cantilever Panel with Gap Constraints in Subsonic Flow

作　　者：李曦玉[1] 杨翊仁[1] 

机构地区：[1]西南交通大学力学与工程学院,成都610031

出　　处：《重庆理工大学学报（自然科学）》2013年第9期94-96,共3页Journal of Chongqing University of Technology：Natural Science

摘　　要：研究了带间隙约束的二维悬臂壁板在亚音速气流作用下的极限环颤振。采用微分求积法对运动方程进行离散,并分析了结构参数对系统响应的影响。结果表明:增加间隙处的弹簧刚度能减小系统极限环颤振幅值;间隙大小不影响系统响应的拓扑结构。The limit cycle flutter behavior of a two-dimensional cantilever panel with gap constraints in subsonic flow is studied. The differential quadrature method is used to discretize the flutter equation and the effects of structural parameters on the system responses are analyzed. The results show that the limit cycle amplitude of the system can be decreased by enlarging the stiffness of spring. The to- pology of the system response is not affected by the gaps.

关 键 词：壁板 亚音速 间隙约束 极限环颤振 

分 类 号：O32[理学—一般力学与力学基础]