天然气轿车用复合材料气瓶碰撞模拟试验研究  

Research on Composite Gas Cylinder Crash Simulation Test of Natural Gas Car

作　　者：张永明[1] 黄中荣[2] 郑祖丹[2] 吴斌[3] 朱西产[3] 

机构地区：[1]华东理工大学 [2]国家机动车产品质量监督检验中心(上海) [3]同济大学

出　　处：《汽车技术》2012年第12期57-61,共5页Automobile Technology

摘　　要：应用台车模拟正面碰撞试验,研究了行李模块对天然气轿车复合材料气瓶造成冲击损伤的规律。确定了考核气瓶固定装置与其完整性的碰撞试验方法;应用落球试验确定了气瓶的冲击容限值,并对吸能材料力学特性进行了分析;利用正面碰撞中的安全性仿真分析得到了当气瓶与行李模块以不同速度、同向运动时气瓶受到的冲击力,并以此作为评价气瓶在正面碰撞中的安全性指标。In this paper,the pattern of impact damage induced by luggage modules on natural gas composite cylinders of cars are analyzed by using a Sled test to simulate frontal collisions.Besides,crash test method for examining retaining devices of the cylinder and its completeness is determined.Falling ball test is applied to identify the impact tolerance limit of the gas cylinder and analysis is made on the mechanical properties of energy absorbing material.The impact force,which is imposed on the gas cylinder when cylinders and luggage modules move at different velocity in the same direction,is obtained through safety simulation analysis and is used as index to evaluate the safety of composite gas cylinders in frontal collisions.

关 键 词：轿车 天然气气瓶 复合材料 碰撞试验 评价指标 

分 类 号：U467.14[机械工程—车辆工程]