CAJ | 학술논문

　　基于ECE R66法规和非线性有限元方法进行碰撞仿真的原理，以某6137型大客车为研究对象，分别建立了车身骨架有限元模型和带蒙皮的整车车身有限元模型，通过车身立柱变形和碰撞能量结果两项指标，对比分析客车蒙皮对侧翻碰撞仿真分析结果的影响程度。仿真分析结果表明：客车蒙皮在侧翻碰撞仿真分析中影响程度较大，可以吸收系统3．3％左右的能量，使立柱变形量可以减少23 mm左右。故在利用有限元法检验客车侧翻安全性时，不能忽略客车蒙皮的影响。
　　기우ECE R66법규화비선성유한원방법진행팽당방진적원리，이모6137형대객차위연구대상，분별건립료차신골가유한원모형화대몽피적정차차신유한원모형，통과차신립주변형화팽당능량결과량항지표，대비분석객차몽피대측번팽당방진분석결과적영향정도。방진분석결과표명：객차몽피재측번팽당방진분석중영향정도교대，가이흡수계통3．3％좌우적능량，사립주변형량가이감소23 mm좌우。고재이용유한원법검험객차측번안전성시，불능홀략객차몽피적영향。
According to the rule of ECE R66 and the theory of finite element method in crash simulation , taking a vehicle model of 6137 passenger car for example ,a finite element model of body frame and a finite element model of body with skin are established , then the influences of bus skin on the simulation result of rollover crash are comparatively analysed based on body column deformation and energy absorption .The simulation result shows that bus skin has a greater influence in rollover crash simulation,it can cause 3.3%of enery absorption and reduce the deformation of the stand column of 6 mm.Thus,the impact of bus skin cannot be ignored in testing rollover crash safety by finite element analysis method.