【摘要】 T型结构是客车车身基本结构之一,通过有限元计算和试验分析,探讨角板大小及角板位置形式(竖杆单侧加双角板、竖杆双侧加双角板、竖杆双侧加单角板、竖杆双侧交叉加单角板)对T型结构强度和刚度的影响。计算结果表明,1只有竖杆双侧加双角板对T型结构刚度和强度均有显著影响;2弯曲工况下T型结构宜采用两种方式进行加强;3扭转工况下T型结构宜采用竖杆双侧加双角板的位置形式进行加强。研究可为客车车身骨架接头结构设计提供参考。更多还原

【Abstract】 T-joint structure is one of the bus basic structures. This paper discussed the effects of triangle bracket size and four forms of triangle brackets( double brackets added at vertical rod single side,double brackets added at vertical rod both sides,single bracket added at vertical rod both sides,single bracket added at vertical rod crossing symmetric sides) on the rigidity and strength of bus T-joint structure. The calculation by finite element method and experimental analysis showed that: 1Only double brackets added at vertical rod both sides in the four forms of triangle bracket can evidently increase both the rigidity and strength of bus T-joint,2Under the bending loads two forms can be selected compatibly for T-joint structure,3Under the torsion loads double brackets added at vertical rod both sides should be selected for T-joint structure. This research findings can be referred for joint structure design of bus body.更多还原