Using the Instantaneous Center of Rotation to Examine the Influence of Yaw Rate on Occupant Kinematics in Eccentric Planar Collisions
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- 版元よりダウンロードリンクを連絡
- 形態
- 価格
- 一般価格(税込)：￥6,600 会員価格(税込)：￥5,280
- 文献・情報種別
- SAE Paper
No.2022-01-0826
- 掲載ページ
- 1-18(Total 18 p)
- 発行年月
- 2022年 3月
- 出版社
- SAE International
- 言語
- 英語
- イベント
- WCX SAE World Congress Experience 2022
書誌事項
| 著者（英） | 1) Elizabeth Rapp van Roden, 2) John Zolock |
|---|---|
| 勤務先（英） | 1) Exponent Inc., 2) Exponent Inc. |
| 抄録（英） | The biomechanical injury assessment for an occupant in a planar vehicle-to-vehicle collision often requires a kinematic analysis of impact-related occupant motion. This analysis becomes more complex when the collision force is eccentric to the center of gravity on a struck vehicle because the vehicle kinematics include both translation and potentially significant yaw rotational rates. This study examines the significance of vehicle yaw on occupant kinematics in eccentric (off-center) planar collisions. The paper describes the calculation of the instantaneous center of rotation (ICR) in a yawing vehicle post-impact and explores how mapping this quantity may inform an occupant’s trajectory when using a free particle “occupant” analysis. The study initially analyzed the impact-related occupant motion for all the outboard seat positions in a minivan using several hypothetical examples of eccentric vehicle-to-vehicle crash configurations with varying PDOF, delta-V, and yaw rate. The ICR and free particle occupant trajectories were calculated for six different simulated crash examples to illustrate which seating positions were most influenced by post-impact vehicle yaw. The process was repeated for all the outboard seat positions in a sedan using the vehicle kinematics from a staged two-vehicle crash test. It was found that the ICR can provide the crash analyst or the biomechanist a useful mechanism to visualize the relationship between vehicle and occupant kinematics in an eccentric planar vehicle collision. 翻訳 |
