压铸镁合金摩托车车架的受力分析  

Mechanical Analysis of Die Casting Magnesium Alloy Motorcycle Framework

作　　者：蒲怡冰[1] 龙思远[1,2] 刘伟召[1] 干雪梅[1] 

机构地区：[1]重庆大学材料科学与工程学院 [2]国家镁合金材料工程技术研究中心

出　　处：《特种铸造及有色合金》2010年第11期1030-1033,共4页Special Casting & Nonferrous Alloys

基　　金：重庆市科技攻关项目(CSTC2009AB4010)

摘　　要：对渝安XGJ150-23越野摩托车车架进行结构再设计,在满足强度、刚度要求下,将钢结构车架设计成适合压铸工艺的镁合金车架,并抽象建立了车架的简化力学模型;然后在摩托车3个极限服役工况下,对车架的最大应力应变进行了有限元分析和校核,结果显示车架在最大负载下的最大应力值为59MPa,应变最大值为1.38mm,远低于材料的许用应力,满足安全使用的要求。Structural redesign of framework was conducted on the basis of the XGJ150-23 cross-country motorcycle from Yu'a,Co.,Ltd.Based on meeting the requirement for strength and rigidity,die casting magnesium alloy framework substituted for origination steel structure was designed,and mechanical analysis was carried out based on three given service conditions.The results reveal that the maximum stress is 59MPa and maximum displacement is 1.88mm at full loading,which is far lower than the allowable strength,meeting the requirements of safe use.

关 键 词：AZ91 车架 有限元分析 压铸 

分 类 号：TG249.2[金属学及工艺—铸造] TG146.22[一般工业技术—材料科学与工程]