摘要
研究了受非线性支承的板状梁结构流致振动问题 .采用二维不可压缩粘性流体模型 ,建立了板状梁的运动微分方程 ;研究非线性支承情况下的流体流速对振幅的影响 ,并对计算结果进行了分析 .结果表明在非线性支承下板状梁结构在流体动压力作用下存在着复杂的动力学行为 ,像发生极限环颤振和屈曲等 .
The flow-induced vibration of a plate-type beam stru cture with nonlinear support is studied.Adopting the assumption of t wo-dimensional incompressible viscous flow,the differential equations of the st ructure are set up.The effects of the flow velocity on the amplitudes of the pla te-type beam with nonlinear support are analyzed,the results of which imply tha t the structure shows a complex dynamical behavior,such as limit cycle flutter, buckling and so on.\;
出处
《固体力学学报》
CAS
CSCD
北大核心
2003年第3期277-283,共7页
Chinese Journal of Solid Mechanics
基金
国家自然科学基金 ( 19872 0 58)资助
