车辆载荷下PE燃气管道的虚拟仿真技术及其动力响应分析  

VIRTUAL SIMULATION TECHNOLOGY AND DYNAMIC RESPONSE ANALYSIS OF PE GAS PIPELINE UNDER VEHICLE LOAD

作　　者：王威翔 姚安林[1] 徐涛龙[1] 代强 古芃 WANG Wei-xiang;YAO An-lin;XU Tao-long;DAI Qiang;GU Peng(College of Petroleum&Natural Gas Engineering,Southwest Petroleum University,Chengdu,Sichuan 610500,China;Ziyang Towngas Limited Company,Ziyang,Sichuan 641300,China;Sinopec Xinjiang Synthetic Natural Gas Pipeline Transportation Co.Ltd,Beijing 100020,China)

机构地区：[1]西南石油大学石油与天然气工程学院,四川成都610500 [2]资阳港华燃气有限公司,四川资阳641300 [3]中国石化新疆煤制天然气外输管道有限责任公司,北京100020

出　　处：《工程力学》2020年第S01期333-339,共7页Engineering Mechanics

摘　　要：当前,城镇燃气管道受车辆碾压造成的事故时有发生,为分析车辆载荷下PE燃气管道的动力响应,借助虚拟样机系统仿真软件ADAMS并结合有限元分析软件研究车辆的运动载荷及受载埋地PE燃气管道的力学特征。建立车辆-路面-土体-管道模型,根据实测值对仿真结果进行了验证。基于虚拟样机系统仿真提取的车辆动态载荷谱,分析PE燃气管道的动力响应过程,并开展不同车重、不同车速下埋地PE燃气管道的动力响应规律研究。结果表明:管体所受的应力及其位移量随着车重的增大而增大;管体所受应力随着车速的增大而增大,而其位移量随着车速的增大而减小。In order to analyze the dynamic response of PE gas pipeline under vehicle loading,the virtual prototype system simulation software ADAMS and the finite element analysis software are used to study vehicle moving loads and the mechanical characteristics of buried PE gas pipeline under the loads.A vehicle-pavementsoil-pipeline model is established,and the simulation results are verified by measured values.Based on the vehicle dynamic load spectrum extracted by virtual prototype system simulation,the dynamic response process of PE gas pipeline is analyzed,and the dynamic response law of buried PE gas pipeline under different vehicle weights and speeds is studied.The results show that:the stress and displacement of the tube increases with the increase of vehicle weight;the stress on the pipe increases with the increase of the vehicle speed,and its displacement decreases with the increase of the vehicle speed.

关 键 词：PE燃气管道 车辆载荷 虚拟仿真技术 动力响应 有限元分析 

分 类 号：TU996.7[建筑科学—供热、供燃气、通风及空调工程] O34[建筑科学—市政工程]