| The For lowering the serious result that the traffic accident bring effectively, our government has brought the constituting of crash protection law and regulation into the content of compulsory examination. The research methods in this paper combine test research with simulation, the vehicle side crash safety is studied systemically. The contents of research work include: The modeling technology of full vehicle,the vehicle side crash simulation technology,the mark of movable deformable barrier,side crash test methods, test data analysis.Mainly introduced the present condition of domestic and international side crash, the summary of world automobile safe technology laws system,The method of this topic research,The main contents of study and the research meaning. Automobile side crash safety as the passive safety study of automobile is an important topic, have already drawn on the concern of the whole world person in automobile field. the research of side crash test methods and simulation developed the new direction of vehicle passive safety research in the domestic, having higher forerunner. The aim is raising Tianjin FAW passive safety of the vehicle, appling the experience of simulation in the engineering.Introducing the different system of European and USA regulations on the side crash. Comparing and analyzing from the test form, movable deformable barrier, side crash dummy and the standard of the evaluation. Analyzed the establishment reference standard of the side crash standard in our country and the problem that need to be noticed.Introducing the modeling and of the movable deformable barrier, the method of the The modeling of full vehicle and the method of the simulation on side crash. It is Satisfy to carry on the request of vehicle side crash computer simulation. It describe the important point of each stage from the whole car model to the spare parts in the build vehicle body mold. The method on the side crash simulation mainly make reference to TJFAW's Standard process of side crash simulation. The mold of vehicle side crash simulation is build.Introduce the method and request of vehicle side crash test. Explain test preparation work in detail, It did full of preparation insure to Satisfactory of test. This test is successful, and get the required datas. The result is qualified, It said that the car's function of the side crash is good.This literary have a systemly research for the passive safey function of vehicle side crash uses the way that combine the test and computer simulation. Got these importance breakthrough and progress at following:Passing the establishment model of WEIZHI, Grassing the main theme and the technique of whole vehicle model, And the process of whole car crash imitation analysis. Taking the mold of the original car as to principle, Imitating the conjunction of vehicle body that relate to. Defining various contact calculate way. Imitation and test comparison result say that the all vehicle model of this paper has the very high reliability and function, Provided engineering experience for CAE technique's application in the product development in TJFAW. Developed the movable deformable barrier and the limited model. create a basic condition of the crash model similar to the real car and its imitation. Marked the movable deformable barrier imitation model. Insuring the law's request to movable deformable barrier's function. movable deformable barrier imitation model's key is The establishment of the beehive aluminum material model.Verified the test of the movable deformable barrier's dynamic state through the calculator. Assured the transform characteristic curve of definition aluminum material model. And built up the movable deformable barrier's model that Satisfied Law's request.In this article,A analysis combine test result and simulation result is studying between two aspect of vehicle and MDB. The result of comparison and analysis is match better, It is prove that the simulation result is true. According to the whole vehicle model, results of test and simulation, the improving schemes of car body are discussion. A analysis combine test result and simulation result of side crash between two aspect of before experiment and after experiment, we can got the improving schemes as forward: we should strengthen the vehicle's floor ,door frame and door in order to reduce the transform of car on the side crash. Insure the passenger's existence space and Lower the two crash speed is important factors that lower the injury value. Lower the B pillar and the car door's transforming speed is a key.Though this text we can obtained an above-mentioned research result ,But some topics need a further research is still existed, such as the research of Dummy model, constrain system simulation, Function research and build model of decorate and fill material in the whole vehicle model, The research of improve measure on the side crash, crash simulation technique in the initial stage of design, and so on.
|
PDF Full Text Request