论文信息 - Prediction of Lower Extremity Injury Risks During an Impact on Modern Car Fronts with a FlexiblePedestrian Legform Impactor and the Pedestrian Legform Impactor According to EEVC WG 17

Prediction of Lower Extremity Injury Risks During an Impact on Modern Car Fronts with a FlexiblePedestrian Legform Impactor and the Pedestrian Legform Impactor According to EEVC WG 17

A legform impactor with biofidelic characteristics (FlexPLI) which is being developed by the Japanese Automobile Research Institute (JARI) is being considered as a test tool for legislation within a proposed Global Technical Regulation on pedestrian protection (UNECE, 2006) and therefore being evaluated by the Technical Evaluation Group (TEG) of GRSP. In previous built levels it already showed good test results on real cars as well as under idealised test conditions but also revealed further need for improvement. A research study at the Federal Highway Research Institute (BASt) deals with the question on how leg injury risks of modern car fronts can be revealed, reflected and assessed by the FlexPLI and how the impactor can be used and implemented as a legislative instrument for the type approval of cars according to current and future legislations on pedestrian protection. The latest impactor built level (GTα) is being evaluated by a general review and assessment of the certification procedure, the knee joint biofidelity and the currently proposed injury criteria. Furthermore, the usability, robustness and durability as a test tool for legislation is examined and an assessment of leg injuries is made by a series of tests with the FlexPLI on real cars with modern car front shapes as well as under idealised test conditions. Finally, a comparison is made between the FlexPLI and the current european legislation tool, the legform impactor according to EEVC WG 17.

Bernd Lorenz | Oliver Zander | Dirk-Uwe Gehring | Peter Leßmann

[1] Dipan Bose,et al. Response of the knee joint to the pedestrian impact loading environment , 2004 .

[2] Atsuhiro Konosu,et al. Evaluation Activities on Injury Assessment Ability of the Flexible Pedestrian Legform Impactor GT Alpha (Flex-GTα) Evaluation Activities on Injury Assessment Ability of the Flexible Pedestrian Legform Impactor GT Alpha (Flex-GTα) , 2006 .

[3] Yasuhiro Matsui,et al. Shearing and bending effects at the knee joint at high speed lateral loading , 1997 .

[4] Gerald W. Nyquist,et al. Tibia bending: strength and response , 1985 .

[5] Yuko Nakahira,et al. A combined evaluation method and a modified maximum likelihood method for injury risk curves , 2000 .

[6] Bernd Lorenz,et al. The pedestrian legform impactor according to EEVC WG 17 - results of an actual research and possibilities for the implementation within regulationson pedestrian protection , 2005 .

[7] Jason R. Kerrigan,et al. Dynamic Response Corridors and Injury Thresholds of the Pedestrian Lower Extremities , 2004 .

[8] Jason R. Kerrigan,et al. Experiments for establishing pedestrian-impact lower limb injury criteria , 2003 .

[9] Jason R. Kerrigan,et al. EVALUATION OF THE RESPONSE OF MECHANICAL PEDESTRIAN KNEE JOINT IMPACTORS IN BENDING AND SHEAR LOADING , 2003 .

[10] Masaaki Tanahashi,et al. Development of a Pedestrian Lower Extremity Protection Car Using a Biofidelic Flexible Pedestrian Legform Impactor , 2005 .