摘要本文以汽车等速万向节传动轴为研究对象，以 CATIA创建的三文实体模型为基础，在虚拟样机 ADAMS 软件环境下，进行动力学模型仿真分析。首先从多体系统动力学的理论与方法出发，提出等速传动轴的仿真策略，由三文实体建模、参考坐标、类对象定义等方面构成框架，进而分析刚体的各项运动学参数，并且建立多体系统动力学仿真模型。 建立合适的等速万向节动力学模型是技术关键之一，为了保证仿真分析的真实性，关于模型的约束部分，以处理接触—碰撞问题的方式进行考虑，而不采用理想化的几何约束关系。 最后对等速传动轴的各项设计参数进行仿真分析，研究不同工况下等速传动轴的运行曲线，验证传动轴结构设计的合理性，以实现对设计的改进。9603
关键词：等速传动轴 CATIA ADAMS 接触碰撞
Abstract
This paper takes automotive constant-velocity joint driveshaft as the research
object. By building the 3D solid model as foundation, and combined with the virtual
prototype environment of software ADAMS, then do the simulation of the dynamic
model.
Firstly, multi-body dynamics simulation theory and methods were studied and
constant-velocity driveshaft simulation strategy was proposed. The frame of the
article is 3D solid model, reference coordinate, class object definition, then taking the
analysis of the rigid bodies’ kinematics parameters, and establishing the multi-body
system dynamic simulation model.
Establishing proper constant velocity universal joint dynamic model is the key
point, in order to guarantee the authenticity of the simulation analysis, it tries to use
contact-impact to think about the constraint of the model, not employ the geometric
constraint relationships which are idealize.
Lastly, taking the simulation analysis of every design parameter about the
constant-velocity driveshaft, and studying the run curve of the different condition of it,
to verify the reasonableness of the design of driveshaft and in order to improve the
design.
Keywords: constant-velocity joint driveshaft CATIA ADAMS contact-impact
目录
1 绪论 . 1
1.1 汽车等速万向节传动轴简介 1
1.2 等速万向节的国内外发展现状 2
1.3 课题的研究目的及意义 3
1.4 本章小结 4
2 等速万向节理论基础 . 5
2.1 BJ 等速万向节的工作原理及受力分析 5
2.2 VL等速万向节的结构及工作原理 ... 6
2.3 本章小结 7
3 等速传动轴的设计与几何模型的建立 . 8
3.1 CATIA软件简介 8
3.2 BJ 等速万向节的设计与几何模型的建立 8
3.2.1 BJ 等速万向节的设计 . 8
3.2.2 BJ 等速万向节几何模型的建立 ... 10
3.3 VL等速万向节的设计与几何模型建立 . 12
3.3.1 VL等速万向节的设计 .. 12
3.3.2 VL等速万向节几何模型的建立 .. 13
3.4 等速传动轴的总装配 .. 14
3.5 本章小结 .. 15
4 等速传动轴动力学模型的建立 ... 16
4.1 ADAMS 功能介绍 16
4.1.1 ADAMS 软件的特点 . 16
4.1.2 ADAMS 软件多刚体系统的组成 . 17
4.1.3 ADAMS 多刚体系统模型坐标系 . 17
4.2 含间隙机构运动副模型 .. 18
4.2.1 间隙处接触力类型 ... 18
4.2.2 摩擦力模型选择 ... 18
4.3 BJ 等速万向节动力学模型的建立 .. 20 等速传动轴的建模与仿真分析:http://www.751com.cn/jixie/lunwen_8395.html