Effect of Rotation of Passenger Compartment on Occupant Behavior in Vehicle Impacts

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  • 車の衝突時の客室回転による乗員挙動への影響
  • クルマ ノ ショウトツジ ノ キャクシツ カイテン ニ ヨル ジョウイン キョドウ エ ノ エイキョウ

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Abstract

The objective of this study is to understand the effects of car rotation on occupant kinematic behavior in vehicle impact with rotation. The method to provide the boundary condition for the occupants under car acceleration and rotation was formulated. Small overlap frontal crash (yawing), full-width crash (pitching) and offset impact tests (yawing and pitching) were examined by FE model simulations. The vehicle yaw motions had a small effect on the occupant kinematics. The vehicle pitch motions mitigated the loading on occupants in a frontal crash since the anchor of the seatbelt moved with vehicle pitch rotation, which increased ridedown of the occupant.

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