Dissertation > Excellent graduate degree dissertation topics show

The Simulation and Analysis of Deformation and Energy Absorption of Thin Beam-based Car Collision

Author: JiangZhiYong
Tutor: ZhongShaoHua
School: Wuhan University of Technology
Course: Vehicle Engineering
Keywords: Thin-walled beam Collision Simulation Absorbing characteristic Passive safety
CLC: U467.14
Type: Master's thesis
Year: 2009
Downloads: 193
Quote: 6
Read: Download Dissertation

Abstract


The study of the body structure anti-colllision performance mainly depends on the testing method before,which is to check related vehicle crashworthiness safety and the damage to human targets through testing,such studies need to repeatedly design,and it needs several vehicles,so researchers need spend a very long period to finish the vehicles safety test which needs lots of money.Because the test is very expensive,car crash test is gradually being replaced by computer simulation methods, and the latter has become the application hot spot of vehicle research.Computer simulation have been a mature theoretical system and the relatively wide range of applications,even though it is not a perfect substitute for real vehicle testing,it is an important complement to the process in the automotive research and development The simulation and analysis of deformation and energy absorption of thin beam-based car collision has practical engineering application of the theory and background,their research played a very important role in energy absorption for the vehicle body and vehicle anti-collision theory of research.Therefore,to carry out research work in this area is not only an important academic value,but also has practical significance for the project.At present,the thin-walled beam as a low-cost,high-energy absorption component,widely used in almost all of the collision impact energy dissipation system of aircraft,automotives and other transportation.Energy-absorbing of the thin-walled beam,primarily through its own plastic deformation to dissipate impact energy when the structure have a significant role in crushing the trip,and it will dissipate impact energy,so instantaneous impact load substantially reducing the strength.At the same time,the structure of thin-walled tube axial absorbs about an order of magnitude energy than the high horizontal,so the study of thin-walled tube in the axial has a great guiding significance for the structural study of anti-collision.This paper based on nonlinear finite element theory,and dicussed on finite element analysis model of the collision in a reasonable simplification,meshing and material parameters,combined with the destruction of a rectangular thin-walled beam model from the center of resultant acceleration and energy absorption value analyzed thin-walled beam cross-section shape of the collision performance and different thickness of the thin-walled beam collision performance.In order to find a thin-walled structure which can decrease the initial acceleration peak and keep the vertical deformation and local stability when colliding,and then designed a cone-shaped cross-section thin-walled beam,and then compared the cone thin-walled beam with direct-shaped thin-walled beam performance of the collision.At last designed the thin-walled beam-induced trough and analyzed the different shapes of thin-walled beam-induced collision performance,non-induced thin-walled beam with trough trough induced by the collision of thin-walled beam-induced trough of performance and different location of the V-shaped thin-walled beam the impact of the collision performance.

Related Dissertations

  1. The Setting Bases of Working Pressure in LNG Systems and Orthogonal Experiment Design of Heat Exchangers,TQ051.5
  2. Study of Interaction between Epoxy Molecules and Carbon Fiber Surface with Molecular Simulation,TB332
  3. Research on Mechanism Analysis and Modeling Simulation of Horizontal Well Tractor,P631.83
  4. Study on Springback of High-Strength Steel Stamping,TG386
  5. Numerical Simulation and Experiment on Hydroforming of Cups with Controllable Radial Pressure,TG386
  6. Research on Technology and Mechanism of Joining Cemented Carbide to Carbon Steel,TG454
  7. Numerical Simulation of Atomization and Evaporation Processes in Multi-Spouted FGD Reactor,X701.3
  8. The Brake Performance of Hydraulic Retarder and Simualtion Research on Its Application for Aircraft Arrestment,TH137.331
  9. Satellite Attitude Determination Based on Gyro and Star Sensor,V448.2
  10. Numerical Simulation of Film Cooling in Turbine Cascade with Non-Axisymmetric Endwall Method,V231.3
  11. Research on Orbital Control Method for Space Rendezvous and Docking,V526
  12. High Speed Aerodynamic Convection and Coupled Heat Transfer of Complicated Bodies,V215.4
  13. The Analysis on Characteris of Vibration Source about Vertical Vibration of Surrounding Environment Induced by Rail Transit,U211.3
  14. Single Neuron PID Control for Electro-Hydraulic Servo Unit of Ship Rudder,U666.152
  15. Simulation Analysis on Temperature Stress of RCC Arch Dam and Its Construction Joints Design Research,TV642.2
  16. Study on the Heat Transfer Characteristics of Particle Cluster in Circulating Fluidized Bed,TK124
  17. Numerical Simulation of SNCR Process of a 600MW Utility Boiler,TK222
  18. Numerical Simulation of Biomass Direct Reburning,TK16
  19. Numerical Simulation on Pulverized Coal Combustion Process in a 670T/H Tangential Firing Furnace,TK224.11
  20. Numerical Simulation on the Combustion Process in the Furnace of a 1000MW Lignite-Fired USC Boiler,TK224.11
  21. Study on Gas-Solid Two-Phase Flow in Spouted Beds,TK173

CLC: > Transportation > Road transport > Automotive Engineering > Vehicle test > Vehicle test > Safety, collision and destruction test
© 2012 www.DissertationTopic.Net  Mobile