近年来,客车安全事故时有发生,通过对客车事故的统计分析表明,侧翻是客车交通事故的主要形态之一。大客车由于其特有的车身结构,重心位置相比其他车型较高,容易引起侧翻事故,进而导致车顶塌陷、解体等入侵变形造成车内人员伤亡;因此,客车上部结构强度对于整车结构安全性至关重要。国际上对客车上部结构强度的检验主要以ECER66号法规为主要验证手段,欧盟成员国、澳大利亚、非洲部分国家均采用此法规体系。我国在1998年制定出 In recent years, accidents of bus accidents occur from time to time. According to statistical analysis of bus accidents, rollover is one of the main forms of bus accidents. Because of its unique body structure, the center of gravity of the bus is higher than other models, easily causing rollover accidents, leading to vehicle roof casualties and other casualties caused by the collapse and collapse of the bus. Therefore, Safety is crucial. The test of the superstructure strength of passenger cars mainly takes ECER66 as the main verification method. Some EU member states, Australia and some African countries adopt this system. My country was enacted in 1998