Vehicle rollover dynamics prediction by mathematical model

Ford, J. E.; Thompson, J. E.

Affiliations

¹Product Planning and Development Staff, Chrysler Corp.

Abstract

Improving occupant survivability during a rollover accident requires a detailed analysis of the dynamics and statistical significance of a particular rollover situation as well as the structural performance of the vehicle involved. A two-dimensional model describing vehicle rollover has been developed which, in conjunction with a proposed index of performance, allows such an evaluation. Dynamic equations of motion for ground contact and airborne travel are used in the model which is programmed for solution on a digital computer. The model is validated by comparison of a graphics console display of the model trajectory with filmed sequences of a vehicle rollover. Validation of the model establishes the feasibility of this approach for predicting the rollover characteristics of a vehicle and determining relative safety performance between vehicles.

Links

DOI: 10.4271/690804

SAE: 690804

Cited By (3)

Year	Entry
2001	Harle N, Glyn-Davies P. The investigation and modelling of corkscrew rollovers. In: Proceedings of the 17th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 4-7, 2001; Amsterdam, The Netherlands.
2005	Chou CC, Wu F. Development of MADYMO-based model for simulation of laboratory rollover test modes. In: Proceedings of the 19th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 6-9, 2005; Washington, DC.
2007	Hu J. Neck Injury Mechanism in Rollover Crashes: A Systematic Approach for Improving Rollover Neck Protection [PhD thesis]. Detroit, MI: Wayne State University; 2007.