脉动流诱发复合材料层合板动力响应

Dynamic Response of Composite Laminated Plates Induced by Oscillating Flow

导出在脉动流顺流向作用力下的复合材料层合板的运动方程 .提出用加权残值法中的时域样条配点法对反对称角铺设层合板进行动力响应计算 .由于样条函数有良好的逼近性及紧凑性 ,使得层合板在脉动流这种复杂荷载作用下的动力分析也相对简单 .计算结果表明 ,零均值流量脉动流顺流向作用力诱发反对称角铺设层合板的时域响应近似于具有一定带宽的谐波运动 。

Motion equations for the composite laminated plates induced by oscillatng flow were derived. The dynamic response of antisymmetric angle- ply laminated plates was calculated by using the method of spline collocation in time domain.The analysis is relatively simple due to the good approximation and the compact expression of the spline function.The numerical results show that the time domain response of the laminated plates induced by the in- line force of non- steady componentoscillating flow is similar to har- monic motion with certain ribbon which is formed by period motion.