摘要:汽车制动系统包括制动盘、悬架、轮毂轴承以及轮毂等。本文在轿车制动系统三代轮毂轴承上进行结构设计, 由于三代轮毂轴承的设计是在其他同类轮毂轴承的基础上,可通过增强其安全性、结构统一性,减少其重量的方法来达到设计目的,从而提高设计效率,文中对轴承载荷进行精确求解,并通过寿命校核、强度校核、极限转速校核验证其可行性。利用UG三文建模软件进行产品三文建模及系统装配动画演示。对轮毂轴承在直行和转弯的情况下的力学性能进行 ANSYS 有限元分析,从而验证方案能否实现。 35319 毕业论文关键词: 制动系统;轮毂轴承;三文建模;有限元分析
Saloon car brake system of third generation wheel hub bearing design and 3D modeling
Abstract: The automobile brake system contains the brake disc,the suspension,the hub bearing, the hub, and so on. In this paper, the third-generation hub bearing of the brake system is designed. Because the third-generation hub bearing’s design is based on other similar wheel bearings and pass by enhance its safety,structural unity,reduce its weight,to achieve the design goals. To improve the design efficiency,It carries out the accurate calculation of the bearing load,and it verifies the feasibility of the bearing through life checking,strength checking and speed checking. Using UG 3D modeling software to build 3D model and create the assembly animation of the production. The mechanical properties of hub bearing in the case of straight and turning are analyzed by Finite element analysis software,and it verifies the scheme can achieve.
Keywords: Brake system;Wheel hub bearing; 3D modeling; FEA
目录
1绪论.1
1.1绪论.1
1.2课题背景.1
1.2.1第一代轮毂轴承.2
1.2.2第二代轮毂轴承.3
1.2.3第三代轮毂轴承.3
1.2.4第四代轮毂轴承.4
1.3本课题任务要求.5
1.3.1本课题的主要设计任务.5
1.3.2需解决的主要问题.5
2轮毂轴承与盘式制动系统的选用.6
2.1制动系统介绍.6
2.2定钳盘式制动器.6
2.3浮钳盘式制动器.7
3ABS传感器9
3.1ABS防抱死系统介绍9
3.2ABS的基本结构10
4轮毂轴承的装配、密封方式的选择.11
4.1轮毂轴承的装配关系.11
4.2轮毂轴承的密封.12
5轴承结构及参数设计计算.14
5.1汽车轮毂轴承类型的选择.14
5.2三代轮毂轴承主要技术参数.15
5.2.1轮毂轴承的计算参数.15
5.2.2轮毂轴承的设计尺寸计算.16
6轮毂轴承的受力分析及寿命计算.18
6.1轮胎载荷.18
6.2轴承受力.19
6.3轴承平衡方程.20
6.4系统寿命.21
6.4.1当量动载荷计算.21
6.4.2基本额定动载荷计算.21
6.4.3系统寿命计算.22
6.5滚动轴承静强度校核.23
6.5.1当量静载荷计算.23
6.5.2额定静载荷计算.24
6.5.3按额定静载荷校核.24
6.6检查极限转速.24
6.6.1滚动轴承极限转速.24
6.6.2极限转速校核.26
7轮毂轴承的三文建模.28
7.1三文软件UG的介绍.28
7.2三文建模.29
7.3UG生成装配爆炸图31
8轮毂轴承的有限元分析.33
8.1有限元分析软件ANSYS的介绍.33
8.2汽车直行时轮毂轴承有限元分析.34
8.3汽车转弯时轮毂轴承有限元分析.36
9总结.39
致谢.40
参考文献.41
1 绪论 1.1 绪论 轮毂轴承是汽车的关键零部件之一,