全复合材料车用天然气气瓶使用寿命的计算与分析  

CALCULATION AND ANALYSIS ON THE SERVICE LIFE-SPAN OF COMPOSITE NATURAL GAS CYLINDER USED FOR VEHICLES

作　　者：徐延海[1] 李永生[1] 黄海波[1] 

机构地区：[1]西华大学交通与汽车工程学院,四川成都610039

出　　处：《玻璃钢／复合材料》2010年第3期52-55,80,共5页Fiber Reinforced Plastics/Composites

基　　金：四川省科技厅自然科学重点资助项目(07JY029-010);科技部资助项目(2006AA11A1E3)

摘　　要：本文在系统地研究了一些使用因素对某型车用天然气气瓶强度影响的基础上,利用损伤理论进行了全复合材料车用天然气气瓶使用寿命的计算与分析。首先系统地阐述了基于疲劳损伤理论的气瓶寿命的计算方法;再根据车用全复合材料天然气气瓶在使用过程中的一些因素对气瓶强度的影响进行了探讨;最后在某型车用气瓶强度分析的基础上依据损伤理论以及计算方法给出了该型气瓶的使用寿命情况,同时也系统地分析了一些使用因素对气瓶寿命的影响。该计算方法与分析过程可以为车用天然气气瓶的安全使用以及检测提供理论基础和依据。In this paper,the life-span of composite natural gas cylinder used for vehicles was calculated and analyzed based on the research of the influence on the gas cylinder strength in service.Firstly,the fatigue damage theory was introduced.The prediction of service life-span can be carried out with the application of the fatigue damage theory.Then,with the consideration of surface damage and the influence factors in service,the life-spans of a type of composite natural gas cylinder were calculated and presented.A detailed analysis was carried out with the distribution of service life-span and the calculated results.The procedure of calculating the service life-span and the analysis are useful for the design of composite natural gas cylinder and provide the rules in checking the service cylinders.

关 键 词：复合材料气瓶 疲劳损伤理论 使用寿命 计算 

分 类 号：U465.6[一般工业技术—材料科学与工程]