Optimal Occupant Kinematics and Crash Pulse for Automobile Frontal Impact | Zendy

Zhiqing Cheng | Zendy; Joseph A. Pellettiere | Zendy; Jeff R. Crandall | Zendy; Walter D. Pilkey | Zendy

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Optimal Occupant Kinematics and Crash Pulse for Automobile Frontal Impact

Author(s) -

Zhiqing Cheng,

Joseph A. Pellettiere,

Jeff R. Crandall,

Walter D. Pilkey

Publication year - 2009

Publication title -

shock and vibration

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.418

H-Index - 45

eISSN - 1875-9203

pISSN - 1070-9622

DOI - 10.1155/2009/290405

Subject(s) - crash , kinematics , impulse (physics) , pulse (music) , control theory (sociology) , minification , automotive engineering , engineering , structural engineering , simulation , computer science , physics , electrical engineering , artificial intelligence , control (management) , classical mechanics , quantum mechanics , detector , programming language

Based on a lumped-parameter model of the occupant-vehicle system, optimal kinematics of the occupant in frontal impact are investigated. It is found that for the minimization of the peak occupant deceleration, the optimal kinematics move the occupant at a constant deceleration. Based on this the optimal vehicle crash pulse is investigated. The optimal crash pulse for passive restraint systems is found to be: a positive impulse at the onset, an immediate plunge followed by a gradual rebound, and finally a positive level period. The relation of the peak occupant deceleration to the impact speed, crash deformation, and vehicle interior rattlespace is established. The optimal crash pulse for active and pre-acting restraint systems is discussed.

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