基于ECE R66法规的某大客车上部结构强度  

Study of Superstructure Strength of a Bus Based on ECE R66 Regulation

作　　者：杨瑞峰[1] 樊江顺[2] 崔海涛[1] 陈野[1] 

机构地区：[1]交通运输部公路科学研究院运输车辆运行安全技术交通行业重点实验室,北京100088 [2]长安大学工程机械学院,陕西西安710064

出　　处：《公路交通科技》2011年第10期136-140,共5页Journal of Highway and Transportation Research and Development

基　　金：国家科技支撑计划项目(2009BAG13A04);交通运输部西部交通建设科技项目(2009318000043);交通运输部公路科学研究所基本科研业务费项目(2010-1004)

摘　　要：以某全承载大客车作为研究对象,应用有限元分析理论,建构了客车有限元模型和客车上部结构强度的数值模拟研究环境。根据ECE R66的等效认证方法,进行了整车质心位置计算以及车体截段实车侧翻试验,评价了其上部结构的变形及其侵入乘员生存空间的状况。将车体截段试验结果与数值仿真结果对比,研究发现两者具有较好一致性。在此基础上,研究了客车在侧翻过程中侧围各立柱吸能情况并予以评价。结果表明该客车车体结构符合法规要求,具有较好的结构安全特性。该侧翻碰撞安全性能设计方法对客车企业研发具有重要的指导意义和应用价值。Taken a full load bus as the research object, the finite element model of the bus and the environment for numerical simulating the structural strength of the bus superstructure were built by applying finite element analysis theory. According to the ECE R66 equivalent authentication method, the gravity center position of the bus was calculated, and the rollover test of real bus body section was carried out. The deformation of the superstructure and its invasion to residual space of passengers were evaluated. Compared the rollover test result of bus body section with the numerical simulation result, it is found that there is a good agreement between the two results. On this basis, the energy-absorbing situation of the side wall pillars during the rollover process was studied and evaluated. The results show that the bus body structure is complied with the regulatory requirements and its structural safety characteristic is good. This design method of rollover crash safety has important significance and value for research and development of manufacturers.

关 键 词：汽车工程 上部结构强度 有限元法 车体截段 

分 类 号：U467.14[机械工程—车辆工程]