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Article Navigation> JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY> 2019> 28(1): 171-175
Chengyue Jiang, Ke Wang, Hongyun Li, Lihai Ren, Shuang Lu, Shanjun Ke. Analysis and Optimization of Passenger Side Knee Slider Compression in Front Impact[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2019, 28(1): 171-175. doi: 10.15918/j.jbit1004-0579.17141
Citation: Chengyue Jiang, Ke Wang, Hongyun Li, Lihai Ren, Shuang Lu, Shanjun Ke. Analysis and Optimization of Passenger Side Knee Slider Compression in Front Impact[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2019, 28(1): 171-175.doi:10.15918/j.jbit1004-0579.17141
shu

Analysis and Optimization of Passenger Side Knee Slider Compression in Front Impact

doi:10.15918/j.jbit1004-0579.17141
  • 1.

    Vehicle Engineering Institute, Chongqing University of Technology, Chongqing 400054, China

  • 2.

    China Automotive Technology and Research Center, Tianjin 300300, China

  • Received Date:2017-12-07
    Abstract
  • The influences of different design factors, as well as dummy posture, on an occupant's knee slider compression, were studied in this paper. Based on the vehicle geometry data, the simulation model, including both the multi-rigid-body and finite element (FE) part, was built up and validated with China New Car Assessment Program (C-NCAP) full impact to ensure the accuracy of the model. By adjusting the design parameters and the posture of the femur and lower leg, different factors affecting the passenger's knee slider compression were evaluated, with the help of MAthematical DYnamic MOdel (MADYMO) simulations. The study indicated that the leg posture, the stiffness of the IP and angles of the carpet have significant effects on the knee slider compression in this case. By decreasing the angle between the femur and lower leg from 133°to 124°, the maximum knee slider compression was decreased by 17.3% and by scaling the IP stiffness from 1 to 0.7, it could be decreased by 18.6%. Also, decreasing the angles of the carpet from 28°to 37° can help reduce the knee slider compression by 18.3%.
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    • References (15)
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