Lightweight Development And Analysis Of A17 Electric Vehicle Alluminium Body

Traditional fuel-powered automobile body design and manufacturing process consumes more resources,has a long development cycle and uses more manpower.Hundreds of people need to be invested in the development of a car body.After three to four years of development cycle,the cost is hundreds of millions of yuan.In order to solve the above problems,the automobile companies has introduced the concept of platform.With unified components,similar structure,common parts and common production platform can be realized in different size and function models,which shortens the development cycle of new models and reduces the development cost.With the vigorous support and promotion of new energy vehicles,especially pure electric vehicles with energy storage batteries,pure electric vehicles are gradually moving towards the design route of positive development.In the design process,it is found that some experience in the development of traditional fuel-powered vehicle body is difficult to copy in the development of pure electric vehicle body.It needs digestion,absorption and improvement.This paper studies the above problems.Through the platform development of A17 pure electric vehicle body,it demonstrates the advantages of platform in shortening the development cycle and reducing the development cost.Through the application of new materials and methods,it explores a modular design idea of small vehicle platform,and under this idea.The design results are analyzed and verified.Firstly,this paper analyses the structure and function of traditional fuel-powered vehicle body,points out the characteristics and limitations of traditional fuel-powered vehicle body in platform and modular development,and combines with the application example of pure electric vehicle in platform,analyses the structure of pure electric vehicle compared with traditional fuel-powered vehicle.The difference.Secondly,the development of pure electric vehicle body has limited mature schemes for reference.Especially in the forward development,new materials need to be designed and tested to verify the materials.The new schemes involved need to introduce a credible scheme evaluation method.Aiming at this problem,a specific test was carried out on the welded riveted parts of aluminium alloy,and the method of fuzzy comprehensive decision-making was used as the evaluation tool.Finally,after fully interpreting the definition,a modular platform car body development scheme is determined through scheme optimization evaluation.The scheme divides the car body into front cabin power module,rear cabin battery module and cockpit module.The design changes between modules are relatively low and easy to develop synchronously.Therefore,the double car body design is completed quickly after the single car body design is completed and verified by CAE analysis.