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A Dynamic Integrity Research of a Light Bus Seat by FEA

Author: CaoPeng
Tutor: ZhangJunZuo；ChaoJianFei
School: Jilin University
Course: Vehicle Engineering
Keywords: Car seat FEA Dynamic Collision LS-DYNA HYGE
CLC: U463.836
Type: Master's thesis
Year: 2011
Downloads: 94
Quote: 0
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Abstract


Safety, environmental protection, energy-saving \At present, the safety of the car has been in the Chinese auto market, the purchase of the most important factors. Automotive passive safety is one of the most basic part of vehicle safety research, and automotive passive safety study, the structure of the occupant restraint system reliability is one of the most basic and most important research topics, finite element The analysis has unparalleled status as an important tool that can be repeated indefinitely and accurate analysis, including the seats, including the structural design of the occupant restraint system. According to the technical requirements of the integrity of the seat dynamic structure, a light passenger rear seat by LS-DYNA computer simulation of 56km / h collision conditions. Strain, stress and other characteristics of the seat system in a high-speed collision derived by simulation, and analysis of the structural reliability of the key components in the collision, the analysis results confirmed that meet the requirements, the completion of the system and vehicle level tackle HYGE test, and do a comparison to the experiments and simulations proved that the model is effective. 1 of this article on car seat safety studies are outlined, and summarize the recent development of the domestic car market as well as the development of automotive safety research, and summarizes the automotive safety study should be noted that the main problem and ideas. 2 of this article for the seat to study design and finite element methods and strategies to establish and model simplification was introduced. Solving the model established in Chapter 3 of this paper, and the result is analyzed to confirm the meet paper proposed technology requirements. Chapter 4 describes the advanced means of physical verification, and system level test conducted for the study, and the comparison of the test results and simulation analysis. Chapter 5 describes the simulation model created in the vehicle model simulation results and the last vehicle level tackle test and experimental results and simulation results compared. After the above study, it can certainly finite element simulation analysis of the the seat safety analysis is a very effective means, but this simulation is based on reasonable simplified model and real experimental data collected, which also confirms earlier in this article's point of view, even if the level and accuracy of the finite element analysis and continuously improve, can not be separated from the experimental study and exist independently of the two is always complementary relationship.

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CLC: > Transportation > Road transport > Automotive Engineering > Automotive structural components > Cab and body > Cab and body parts and components > Seat
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