机车车体强度计算中载重约束处理浅析  

Analysis of and dealing with load constraints in the locomotive body-strength calculation

作　　者：李华丽[1] 肖守讷[1] 王松[2] 黄小叶[1,3] 

机构地区：[1]西南交通大学牵引动力国家重点实验室机车车辆研究所 [2]大连机车车辆有限公司设计处 [3]中国工程物理研究院工学院,四川绵阳621900

出　　处：《内燃机车》2008年第2期11-13,17,共4页Diesel Locomotives

基　　金：高等学校科技创新工程重大项目培养基金(705044) ;教育部创新团队研究计划(IRT0452) ;国家高技术研究发展计划(863计划2006AA04Z406)

摘　　要：应用有限元方法及ANSYS软件建立了某型调车内燃机车车体结构的有限元分析模型,根据其机车的受力分析和承载特点,选底架作为分析对象,考虑载重的两种处理方式,确定了有限元模型的计算载荷和计算工况以及评定标准,比较了车体在整备状态下的车体静强度以及底架结构的变形情况。结果表明,底架结构的载重在两种处理方式下,其强度和变形相差很小,仅仅相差不到0 .5 %,且皆能满足相关标准的要求。A particular finite element analysis model of a shunting locomotive body structure was set up with finite element method and ANSYS software. Underframe of car body was taken as analytical object according to the load-carrying characteristic. Two methods were applied to compensating load, the FEM calculational loads, constant operating conditions and assessing standards of the model were confirmed, and the car body static strenght and its distortion were compared. The result indicates that the static strength and distortion of car body structure meet the relative design requirements in constant operating conditions, at the same time, their values are very close (the difference between them is less than 05%) under the two methods.

关 键 词：内燃机车 车体 有限元 静强度 载重 

分 类 号：U260.32[机械工程—车辆工程]