流体作用下正交各向异性圆锥壳的自由振动

Free vibration of orthotropic conical shell interacting with fluid

给出了流体载荷作用下正交各向异性圆锥壳体的自由振动理论模型。通过波传播法和Galerkin法得到了流体载荷作用下截锥壳体自由振动的解。流体载荷作用下的锥壳被划分为好几段,并且每个小圆锥段被当作一个小圆柱段。通过确定每个小圆柱段的流体载荷,来确定锥壳的流体载荷。这样,作用在锥壳上的流体载荷逐段加载。流体载何以及没有流体载荷作用的各向同性和正交各向异性圆锥壳的数值结果被计算出来阐述求解过程的有效性。

A theoretical vibration model of orthotropic truncated conical shell with fluid load was presented and its free vibration solution was found by use of wave propagation approach and Galerkin method.The fluid loaded conical shell was divided into several segments and each small strip of conical shell was treated as circular cylindrical shell.The total fluid load on conical shell was obtained by determining the fluid load on each cylinder.The numerical results for isotropic and orthotropic conical shells with fluid load or without fluid load were computed and compared to illustrate the validity of the presented solution procedures.