基于区域分解谱单元法加肋圆柱壳振动控制研究

Research on Vibration Control of Ribbed Cylindrical Shell Based on Area Decomposition Spectral Element Method

针对加肋圆柱壳复杂结构振动计算问题,论文提出了一种基于区域分解的谱单元分析方法,用于求解多段加肋圆柱壳复杂结构的振动响应。该方法将加肋圆柱壳分解成多个区域,每个区域采用谱单元法求解,通过力和位移边界条件构造系统矩阵来求解主动控制力,从而计算得到加肋圆柱壳的振动响应。结合数值计算结果和仿真实验得出结论:基于区域分解谱单元法能够有效用于加肋圆柱壳体振动分析。

Aiming at the problem of vibration calculation of complex structures of ribbed cylindrical shells,a spectral element analysis method based on domain decomposition is proposed in this paper to solve the vibration response of complex structures of multi-segment ribbed cylindrical shells.In this method,the ribbed cylindrical shell is decomposed into multiple regions,each region is solved by the spectral element method,and the system matrix is constructed by the force and displacement boundary conditions to solve the active control force,thereby calculating the vibration response of the ribbed cylindrical shell.Combined with numerical calculation results and simulation experiments,it is concluded that the area decomposition spectral element method can be effectively used for vibration analysis of ribbed cylindrical shells.