作者：杨智荣1,2, 杨再明1,2, 高海波2, 陈祖志1, 林治国2
作者单位：1. 中国特种设备检测研究院 国家市场监管总局特种设备安全与节能重点实验室，北京 100029;
2. 武汉理工大学能源与动力工程学院，湖北 武汉 430063
关键词：长管拖车气瓶;垂直加速度;等效应力;随机振动
摘要：
针对长管拖车气瓶损伤检验问题，提出气瓶损伤在线监测平台，并对气瓶在线监测参数以及位置进行研究。通过有限元数值仿真（包括结构分析与随机振动仿真实验）方法，以随机振动实验模拟气瓶运输过程中的状况，并定量制造气瓶损伤，监测气瓶运输中由于损伤导致的各参数变化，由结果得损伤位置的等效应力以及垂直加速度和损伤等级成正比，因此将其作为监测参数。监测位置的选择主要结合随机振动仿真、损伤案例统计以及气瓶水压实验爆破位置三方面考虑，各结果表明气瓶瓶肩位置为易损伤位置，因此将其作为主要的监测位置。
Study on monitoring parameters and position of CNG cylinder damage for online monitoring platform
YANG Zhirong1,2, YANG Zaiming1,2, GAO Haibo2, CHEN Zuzhi1, LIN Zhiguo2
1. State Administration for Market Regulation (SAMR) Key Laboratory of Special Equipment Safety and Energy-saving, China Special Equipment Inspection and Research Institute(CSEI), Beijing 100029, China;
2. School of Energy and Power Engineering, Wuhan University of Technology, Wuhan 430063, China
Abstract: Aiming at the problem of cylinder damage inspection for long tube trailer, an online monitoring platform for cylinder damage is proposed. The online monitoring parameters and position of the gas cylinder are studied. Through the finite element numerical simulation (including structural analysis and random vibration simulation), the random vibration is used to simulate the condition of the gas cylinder during transportation, and the damage of the gas cylinder is quantitatively manufactured. the changes of various values caused by the damage during the gas cylinder transportation are monitored. From the results, the equivalent stress at the damage location and the vertical acceleration are proportional to the damage degree, so they are used as monitoring parameters. The selection of the monitoring position is mainly considered in three aspects: random vibration simulation, damage case statistics, and cylinder hydraulic pressure test blasting position. Each result shows that the cylinder shoulder position is a vulnerable position, so it is taken as the main monitoring position.
Keywords: long tube trailer gas cylinder;vertical acceleration;equivalent stress;random vibration
2021, 47(3):144-149 收稿日期: 2020-06-13;收到修改稿日期: 2020-07-27
基金项目: 国家重点研发计划（2017YFC0805605）
作者简介: 杨智荣(1975-),男,北京市人,高级工程师,博士,主要从事移动式压力容器诊断、预警和安全评估研究
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