Aiming at rapid prediction and transfer characteristics analysis of vibration responses of pipeline-supports-shell coupling system,dynamic model of straight-elbow-reducer-pump-valve combined pipeline system was established by Riccati transfer matrix method to obtain its frequency response functions considering the fluid-structure interaction effect.Dynamic model of the pipeline-supports-shell coupling system was established by the frequency response function based substructure method to obtain the vibration transfer characteristics under the simulated excitation of the pump source of the pipeline system.The frequency responses and transfer characteristics of the coupled system were analyzed.It is concluded that the Riccati transfer matrix method is capable to decrease the cumulative error for the multiple pipe sections by the trans-fer matrix method.The transmitted vertical force by the supports is greater than the axial force and transverse force under the excitation of the vertical harmonic force,and the power flow transmitted through all directions at each support is basically of the same level.
关键词
振动与波/组合管路/流固耦合/Riccati传递矩阵法/频响函数综合/建模与优化
Key words
vibration and wave/combined pipeline/fluid-structure interaction/Riccati transfer matrix method/fre-quency response function synthesis/modeling and optimization
维普
万方数据