【摘要】 用六结点平面三角形单元计算正交各向异性开孔薄板中面荷载下各单元线性的中面力分布，并用高精度板弯曲单元计算屈曲临界荷载及有中面力时的横向振动特征值，得到开孔大小、材料性质、弹性主方向、约束条件、中面荷载类型对屈曲临界荷载及横向振动特征值影响的规律更多还原

【Abstract】 A distribution of the linear in-plane forces for each element of orthotropic plates with cutouts subjected to in-plane loadings is presented by using a 6-nodes triagular planc element.After that the buckling and lateral vibration of the plates are analyzed by means of high-precision plate bending element.Thereby the effect of the size of cutout,the material property,the principal elasticity direction,the edge condition and in-plane loading type on the buckling loads and the natural frequencies is determined.更多还原