毕业设计（论文）-汽车发动机台架试验台设计全套图纸）.docVIP

┊┊┊┊┊┊┊┊┊┊┊┊┊装┊┊┊┊┊订┊┊┊┊┊线┊┊┊┊┊┊┊┊┊┊┊┊┊毕业设计（论文）报告纸PAGE 毕业设计（论文）报告纸汽车发动机台架试验台设计14机械工程及自动化（汽车） 指导教师 【摘要】 随着科技的进步，汽车早已不是稀缺资源，而是普通大众都能消费得起的代步工具。汽车公司越来越多，竞争越来越激烈。为了在竞争中取得有利地位，各大汽车公司都加大研发力度去提高整车质量。发动机作为汽车的核心，是研发的重中之重。因此，一个设计精良的发动机台架试验台对于发动机试验来说意义重大。本设计主要对地平铁、发动机支架、传动轴、测功器、冷却系统、燃油系统、进气系统、供电系统、通风换气系统、温度控制系统和安全系统等进行研究。它们是发动机台架试验台的主要组成部分，是影响发动机试验的重要因素。通过分析表明，试验台基础要有足够的强度去满足支撑的要求。设计发动机支架时可以通过改变支撑腿和横梁的位置，去适应不同类型的发动机。设计传动轴时，要分析系统的振动频率，防止出现共振。选用挠性万向节，满足台架试验的需求。交流电力测功器效率高，还可以将发动机的动能转换成电能。发动机试验台的布局科学又合理，安全系统使试验变得便捷和安全。【关键词】 发动机 台架试验 测功器 传动轴 发动机支架全套图纸，加153893706【Abstract】 With the progress of science and technology, the automobile is not a scarce resource, but ordinary people can afford the means of transport. More and more automobile companies enter the automotive industry, which leads to the intense competition. In order to obtain an advantageous position in the competition, many automobile companies pay attention to research and development to improve the quality of the vehicle. Engine as the core of the automobile, is the most important in research and development. So, an excellent design of engine bench test bed is great significance for engine test.This design mainly study the iron floor, engine support, drive shaft, dynamometer, cooling system, fuel system, intake system, power supply system ，ventilation system, temperature control system ，safety system and so on. They are the main components of the engine bench test bed, which are important influence for the engine test.The analysis shows that the test bench foundation must have enough strength to meet the requirement of support. When the engine support is designed, the position of the support leg and the cross beam can be changed to adapt to different types of engine. When the drive shaft is designed, the vibration frequency of the system should be analysed to avoid resonance. Flexible universal joint should be used to meet the need of bench test. AC electric dynamometer with high effic