【摘要】 基于Timoshere-Midlin假设和壳的非线性理论,建立了层合中厚非圆柱壳的非线性运动控制方程,采用伽辽金技术和谐波平衡法对问题进行求解。数值计算中,以两端简支L曲线截面中厚柱壳为例,讨论了截面形状参数、径厚比等因素对层合中厚非圆截面柱壳非线性幅频响应的影响,且与有关文献进行了比较。更多还原

【Abstract】 Based on the Timoshenko-Mindlin hypothesis and the nonlinear theory of shells,the nonlinear governing equations of motion for the laminated non-circular cylindrical thick shells are founded.And these equations are solved by using the Galerkin procedure and the method of harmonic balance.In numerical calculations,the laminated L-curve section cylindrical thick shells with both ends simply supported are investigated,and the effects of sectional shape and the radium-to-thickness ratio on the nonlinear amplitude-frequency response curves of laminated non-circular cylindrical shells are discussed.The present results are compared with available date.更多还原