摘要FSE比赛开展十载余,其设计和制造技术已经趋于系统和成熟,在原车上进行改善设计意义更大。本文通过故障树分析法分南京理工大学2015年度电动赛车存在的机械与性能问题,并且根据2015年度E·MOTION各项赛事排名来设定本年度赛事目标以及团队理念。通过利用Excel、CATIA软件进行计算和建模,分别针对总体布置设计、驾驶舱人机工程学、转向与悬架几何与机械结构进行了优化。针对故障问题解决后,根据新设计来校核赛车性能参数与载荷分析,再基于CATIA软件完成整车三维建模、装配以及对整车进行参数测量和干涉检查,确认无误后,利用FSAE的Adams模板修改调试为2016年度赛车模型分别进行悬架K&C分析与对比和整车操稳性分析,最后形成赛车整体。通过各类软件的综合应用,提高了设计效率与合理性和缩短了赛车的研发周期。76822
毕业论文 关键词 FSEC 机械优化 总布置 三维总装 DMU Adams/car
毕业设计说明书外文摘要
Title FSEC Racing Car Layout and Optimizing Design of Mechanical Structure
Abstract
With more than 10 years developing, design and manufacturing technology of FSE have become mature and systematic, so the optimization in the original car has greater significance。 This paper analyses mechanical and performance issues of 2015 electric cars of Nanjing University of Science and Technology, based on Fault tree analysis (FTA), and sets this year's event targets and the concept of team according to ranking of 2015。 It aims at the question to optimize the design of layout, cockpit ergonomics, steering and suspension geometry and mechanical structure with calculation and modeling in Excel and CATIA。 After solving problems, it analyses performance and load according to the new design, and works on parameter measurement and interference check by CATIA 3D virtual assembly。 Then confirming no error, this paper uses Adams/car template to modify and debug as 2016 car model for suspension K & C analysis and comparison, and vehicle handling and stability analysis, and finally forms whole car。 Through the comprehensive application of various types of software, the design efficiency and rationality are improving and the development cycle of the car is shorten。
Keywords FSEC Optimizing Design of Mechanical Structure Layout
3D virtual assembly DMU ADAMS/CAR
目 次
1 绪论 3
1。1 中国大学生电动方程式大赛(FSEC)简介 3
1。3 赛车开发软件应用状况 4
1。4 本文研究内容及意义 6
2 本届赛车总布置设计 8
2。1 往届赛车的问题分析 8
2。2 赛事规则变动对赛车制作影响分析 9
2。3 赛车目标设定 11
2。4 人机坐姿布置 12
2。5 赛车各总成选型 15
2。6 赛车质心位置确定 16
2。7 本章小结 18
3 赛车性能计算 19
3。1 电机的目标参数 19
3。2 实际75米加速性能计算 22
3。3 制动性能计算