吉林大学学报(工学版) ›› 2003, Vol. ›› Issue (2): 25-31.

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Effect of bumper parameters on leg and knee injuries

CHENG Xiu-sheng1, ZHANG Ji-guo2, ZHOU Gang3, ANDY Broun4   

  1. 1. College of Automobile Engineering, Jilin University, Changchun 130025, China;
    2. Transportation Vocation Technical College of Inner Mongolia, Chifeng 024000, China;
    3. Loughborough University, Loughborough Leicestershire LE11 3TU, UK;
    4. Ilmor Engineering Ltd, Northampton, NN6 9UB, UK
  • Received:2002-08-05

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Abstract: Based on biomechanical characteristics of human lower leg and knee joint in car pedestrian side impacting accidents,and computer simulation results from leg form impactor impacted with car bumper by finite element method,the paper described the influences of bumper heights and bumper profiles on the leg and knee injuries by qualitative analysis and quantitative analysis.The results showed that knee joint injuries will be increased owing to the shear deformation and bend deformation when the bumper height is close to the knee center for a fixed bumper profile,and the injury possibility of secondary impacting of the leg and knee will be increased when the bumper height is below the tibia center of gravity.The further research will be carried out on avoiding or reducing the possibility of pedestrain injuries in car pedestrian impacting accidents from car design aspects by mentioned approach in this paper.

Key words: impact, bumper, body injuries, biomechanical characteristics, computer simulation

CLC Number: 

  • U461.91
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