新型半挂汽车列车车架有限元分析 摘要 本文首先简要介绍了半挂汽车列车车架结构及设计，车架结构主要有边梁、横梁和纵梁组成，在其中主要分析了车架结构的特点包括车架材料的性能、车架设计方案、布置说明。另外，在对车架的结构进行设计中，主要对车架结构总体布置和纵梁进行设计，也对车架的主要零、部进行了设计。其次重点介绍了车架结构分析的有限元法的基本理论以及有限元分析软件——ANSYS的相关知识，建立了新型半挂汽车列车车架的有限元计算模型，此次建模采用体单元solid—10
node 92单元类型，并考虑了材料的弹性模量、密度和泊松比，然后采用单元边长为100 mm为划分单元对模型进行划分网格，其中共划分了207061个单元，99865个节点；接着对前轮轴梁架中间面进行Y方向约束，对后轮轴量架中间面进行全约束，约束完后主要对车架纵梁平台节点上进行加载；最后利用有限元软件——ANSYS进行强度分析、应力分析和变形分析，并通过分析结构得出强度和刚度满足要求，而此对汽车车架结构设计以及载重研究具有一定的理论意义和实用价值！ 关键词：半挂汽车列车车架ANSYS软件有限元静态分析 Abstract This article first briefly i
ntroduced partly ha
ngs the tractor-trailer frame structure a
nd the desig
n, the frame structure mai
nly has the margi
nal beam, the crossbeam a
nd the carli
ne compositio
n, i
n has mai
nly a
nalyzed the frame structure characteristic i
ncludi
ng the frame material performa
nce, the frame desig
n proposal, the arra
ngeme
nt expla
natio
n. Moreover, i
n carries o
n the desig
n to frame's structure, mai
nly carries o
n the desig
n to the frame structure ge
neral arra
ngeme
nt a
nd the carli
ne, also to frame's mai
nzero, has carried o
n the desig
n. Next i
ntroducedwith emphasis the frame structure a
nalysis's fi
nite eleme
nt method's eleme
ntary theory aswell as the fi
nite eleme
nt a
nalysis software-- ANSYS related k
nowledge, established
new has partly hu
ng the tractor-trailer frame's fi
nite eleme
nt computatio
n model, this modelli
ng used the body u
nit solid-10
node 92 u
nit types, a
nd had co
nsidered the material elasticity coefficie
nt, the de
nsity a
nd the poisso
n's ratio, the
n used the u
nit le
ngth of side are 100 mm are the divisio
n u
nit carry o
n the divisio
n grid to the model, A
nd has altogether divided 207061 u
nits, 99865
nodes; The
n carries o
n Y to the fro
ntwheel spi
ndle truss media
n surface the directio
n restrai
nt, carries o
n the e
ntire restrai
nt to a rear qua
ntity media
n surface, after restrai
ni
ng, mai
nly carries o
n the load to the frame side-member platform
node i
n; Fi
nally carries o
n the stre
ngth a
nalysis, the stress a
nalysis a
nd the distortio
n a
nalysis usi
ng fi
nite eleme
nt software-- ANSYS, a
nd obtai
ns the i
nte
nsity a
nd the rigidity through the a
nalysis structure satisfies the request, but this paper has certai
n theory sig
nifica
nce a
nd the usevalue to the automobile frame structural desig
n aswell as the carryi
ng capacity research! Keywords: Semitrailer Frame ANSYS software Fi
nite eleme
nt Vertical a
nalysis 目录 第1章绪论1 1.1我国半挂汽车列车生产制造发展现状1 1.2本设计研究的目的和意义3 1.3本课题研究内容4 第2章新型半挂汽车列车车架结构分析5 2.1半挂汽车列车的主要结构介绍5 2.2新型半挂汽车列车车架的特点12 2.3新型半挂汽车列车车架结构总体布置设计17 2.4新型半挂汽车列车纵梁设计18 2.5新型半挂汽车列车车架主要零、部件设计19 第3章新型半挂汽车列车车架设计ANSYS有限元分析24 3.1有限元分析的原理与方法24 3.2 ANSYS软件简介26 3.3新型半挂汽车列车车架ANSYS有限元分析26 3.4计算结果31 3.5应力分析32 总结及展望35 参考文献36