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导出置于液面上的复合材料层合板条变形时流体作用力的解析表达式;由Hamilton原理建立考虑横向剪切变形及流固耦合效应时迭层板的非线性动力屈曲控制方程;采用差分方法求解了轴向面内加载时板条的流固耦合动力屈曲;讨论了铺层角度、铺层数目、流场深度、加载形式以及初始几何缺陷等因素对动力屈曲的影响.
The analytical expression of the fluid force acting on the composite laminate strip placed on the liquid surface is deduced. The governing equations of nonlinear dynamic buckling of the laminated plate considering the transverse shear deformation and the fluid-structure interaction effect are established by Hamilton’s principle. The fluid-structure coupled dynamic buckling of the slats during the axial plane loading is solved. The effects of the ply angle, the number of plies, the depth of flow field, the loading form and the initial geometric defects on dynamic buckling are discussed.