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Simulation on Crash of Straddled-type Monorail Vehicle Body

Author: ZhangXiaoXu
Tutor: DuZiXue
School: Chongqing Jiaotong University
Course: Vehicle Operation Engineering
Keywords: Monorail vehicles Body structure Crash simulation Dummy model Security
CLC: U270
Type: Master's thesis
Year: 2010
Downloads: 46
Quote: 1
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Abstract


As China's urban rail transit vigorous development, and transportation aspects of the increasingly fierce market competition, urban rail transit in the city's development plays an increasingly important role, and the complete volume in the proportion of public transport more and more, the importance of getting their security can not be ignored. Once the train collision accident will result in passenger vehicle is damaged causing casualties and huge economic losses, so the urban rail vehicle passive safety and more attention, the body of crash safety research has become rail vehicle design is an important research topic. However, due to the constraints of economic strength in the country to carry out real car crash destructive experimental study is unrealistic, so as the explicit finite element computer technology and high-performance computer hardware and software resources, the emergence of computer applications Numerical methods for crash simulation of the vehicle body has become a major means. Domestic and foreign research shows that using a computer simulation of a vehicle collision course with dummies, not only can predict vehicle crashworthiness, but also can draw more accurate response occupant collision course with the degree of injury, in the vehicle development process in good prediction of body structure design is reasonable and speed development. In this thesis, monorail vehicles as the research object, the establishment of a monorail vehicle CAD and CAE models, as well as frontal crash simulation finite element model to simulate the monorail vehicle frontal crash situations; collision course to master data in the system simulation theories - Dynamic explicit finite element basic principles, ideas and methods, based on the analysis of the international crash simulation generic Hybrid Ⅲ-50th male dummy model were analyzed in the establishment of the human body finite element simulation of a frontal collision requirements of the various units and materials properties of the mathematical model and parameters fully grasp theory; dummy model for the finite element analysis of the structure and composition of posture adjustment force by the movement of a given simulated response to verify the correctness of the finite element model dummy and the coordination of the various parts of the response; analyzed the different speeds of the skeleton deformation, deformation velocity and absorption, and adopted the finite element model containing dummy vehicle frontal collision process simulation , to reproduce the vehicle crash dummy movement during the response obtained during the simulation dummies part of the damage evaluation, simulation results show that in line with national standards. Through this paper, the finite element model with dummy monorail vehicle frontal crash course in numerical simulation, carried out a useful vehicle bodywork monorail crash simulation attempt, the paper monorail vehicle body structure design has a certain reference value.

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