【作者】 朱红卫； 陈国明； 黄东升；

【Author】 ZHU Hong-wei,CHEN Guo-ming,Huang Dong-sheng(Centre for Offshore Engineering and Safety Technology,China University of Petroleum,Dongying,Shandong 257061,China)

【机构】 中国石油大学(华东)海洋油气装备与安全技术研究中心；

【摘要】 管跨振动仿真是海底管道虚拟安全系统的重要功能之一。将管跨结构视为伯努利-欧拉梁,并将两端支撑土壤等效为线弹性支撑,建立海底管跨的力学模型以及有限元几何模型和载荷模型。运用MATLAB系统自主开发海底管跨振动仿真模块,实现管跨在海流交变载荷作用下的振动仿真。与ANSYS仿真结果对比证明,所开发的振动仿真模块具有较高的精度和实用价值。更多还原

【Abstract】 Vibration simulation for submarine pipeline span is one of important functione of Submarine Pipeline Virtual Safety System(SPVSS) .Treating pipeline span structure as Bernoulli-Euler beam and regarding soil supporting as linear springs,mechanical model,geometric and load finite element models are established.Based on MATLAB tools,submarine pipeline span vibration simulation module of SPVSS is developed to realize the computer simulation on vibration for pipeline span under alternating loads.Comparing with simulation results of ANSYS,the simulation module has enough precision and practical value.更多还原