混凝土搅拌车底盘车架的计算

2 副车架纵梁强度校核Р 副车架纵梁最大动弯曲应力:Р σfd=HfMmax /2(Jz+Jf)<[σfs]Р 式中:Hf 为副车架纵梁高度;[σfs]为副车架纵梁材料许用应力。Р3.4.3 强度校核实例Р现以某8 m3搅拌罐为例,对SX5254GJBDM364混凝土搅拌运输车的主、副车架强度校核。Р考虑到混凝土搅拌车工况情况,对主车架纵梁强度校核,取kd=2.5 n=1.4,经过分析计算[2]得:σzd=287.6 MPa<σzs。Р副车架纵梁强度校核:σfd=135.0 MPa<[σfs]。Р参考文献Р[1] 刘惟信. 汽车设计[M]. 北京:清华大学出版社,2001Р[2] 徐达,蒋崇贤. 专用汽车结构与设计[M]. 北京理工大学出版社,1998РDesign of Main and Assistant Frame of Concrete Agitate LorryРHE Yong-hui РAbstract The intensity calculating method and proofreading formula of the main and assistant automobile frame of the concrete agitate lorry are obtained based on the qualitative and quantitative force analysis. With this method and formula the analysis and calculation are done to the concrete agitate lorry of SX5254GJBDM364.РKey word concrete agitate lorry;automobile frame;main beam;intensity