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多功能自行车的设计与仿真—学士学位论文.doc

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湖北文理学院 毕业设计论文年月 日 esign and Simulation of Multifunctional Bicycle Abstract:People travel bike is one of the basic means of transport. Although in todays society,there is more alternative mode of transportation for people to choose, but in promoting low carbon living today, a bike as a green transport was favored by more and become an integral part of peoples lives. According to the analysis of the structural features and functions on the existing bicycle in this paper, combined with the ergonomics of principle, the overall design of the multi-function bike were completed based on the requirements of rationality and comfort property.At the same time, a 3D modeling, virtual assembly and simulation of a bike were completed by advanced modeling techniques and motion simulation based on Pro/ E software. This is more intuitive, more comprehensively reflect the design intent of the multifunctional bicycle. Designers at the design stage we can clearly see the final result of the product, timely detection of design problems, shorten the design and development cycle, the design efficiency were improved. Development requirements in line with modern technology. Meanwhile, the design of bicycle development of new products also have some reference. Key words: Multifunctional bicycle;Virtual Assembling;3D Modeling; Pro/E; Motion Simulation 目 录 1 绪 论 1 1.1 本课题的研究背景 1 1.1.1 自行车的研究现状 1 1.1.2 自行车的发展趋势 2 1.2虚拟样机设计的意义及前景 5 1.3本课题研究的目的 7 1.4自行车材料的选择 8 1.4.1铬钼钢车架 8 1.4.2铝合金车架 8 1.4.3钛合金车架 9 1.4.4碳纤维车架 10 1.5 本课题研究的主要内容 11 1.6 本章小结 11 2 多功能自行车主要零件的结构设计 12 2.1 Pro/E设计方法概述 12 2.2 多功能自行车的总体设计 12 2.2.1 自行车的组成 12 2.2.2自行车设计原则与设计流程 12 2.3 自行车基本尺寸设计 14 2.4 车身的设计 16 2.4.1 车架的设计 16 2.4.2前叉的设计 17 2.4.3把手的设计 18 2.4.4 鞍座的设计 19 2.4.5 脚蹬的设计 20 2.4.6车把与鞍座之间的相对位置 20 2.4.7鞍座与脚踏之间的相对位置 21 2.5 车轮的设计 21 2.6链轮小轮盘的设计 22 2.7 链轮大轮盘的设计 23 2.8 链条设计 23 2.9 折叠后的轮椅座位设计 24 2.10人体工程学在自行车设计中应用的思考 24 2.11 本章小结 25 3 自行车的装配设计与功能仿真 26 3.1 装配概述 26 3.2 自行车的装配过程 26 3.2.1 自行车装配的基本原则 26 3.2.2 车架的装配 27 3.2.3 车架与鞍座的装配 28 3.2.4
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