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进行承受初始轴向和内部压力的纤维金属层板柱壳的动力响应分析。基于Love一次近似理论,利用一次剪切变形理论建立壳体平衡方程与拉力-位移关系。采用伽辽金法求解屈曲平衡方程、壳体自由及受迫振动问题。研究纤维金属层板参数如:材料属性、板层数、纤维方位、预应力对动力性能的影响。结果表明,各种板层数与预应力情况下,纤维金属层板对结构自振频率及动力性能均具有重要影响。
Dynamic response analysis of fiber metal laminates with initial axial and internal pressure is carried out. Based on Love’s first-order approximation theory, the shell’s equilibrium equation and tension-displacement relationship are established by using the first shear deformation theory. Solving buckling equilibrium equation, shell free and forced vibration using Galerkin method. Study of fiber metal laminates parameters such as: material properties, the number of layers, fiber orientation, prestressing on the dynamic performance. The results show that all kinds of slab layers and prestressed cases, the fiber metal laminate has an important impact on the natural frequency and dynamic performance of the structure.