Finite Element Analysis For Semi-Trailer Oil-Truck And Structure Optimization Design Of The Semi-Trailer Frame

With the development of science and technology, people have a higher and higher request to the entire vehicle performance. In the intensive competition market, using new technology, new method has become the main way to enhance the product competitive ability. The hypothesized prototypical technology owns modeling, simulation and optimization ability at the same time, which will reduce the product development cycle, reduce the development cost, improve the product quality, thus achieve the goal to enhance the product competitive abilityAlong with computer widespread application, the research and the application of Finite Element Analysis has developed fast in our country, ANSYS is a function formidable structure analysis and the structure optimization software. Its function besides structure analysis, but also includes the thermal analysis, the electromagnetism analysis, the fluid analysis, the pale pinkish purple field analysis -multi- physics field and so on. Structure analysis may determine the structure distortion, the strain, the stress and so onThe frame is a key component of the vehicle, the frame independent develop technique level directly effects the vehicle independent development level. At present, in automobile frame development design stage, also similarly because lacks the essential dynamic test equipment and the consummation testing method, cannot carry on effective and accurate computation and the analysis to the frame under each kind operating models and the road surface condition reliability.This article aimed at the semi-trailer oil-truck and the low plate semi-trailer of Ruijiang company, we established the shell models of the oil truck and the low plate semi-trailer with the three dimensional software UG, then imported the shell models into the finite element software ANSYS to carry on preprocess to the models, Carried on the intensity analysis to the semi-trailer oil truck ,discovered the intensity deficiency position, and proposed improvement program, The paper also carry on mode analysis to the oil truck frame and extracted natural frequency and vibrating form of the model , and also made the appraisal to the frame dynamic characteristic; Meanwhile carries on the intensity analysis and the optimization design based on ANSYS to the low plate semi-trailer, thus enhances the developing speed and the quality of the frame.