The role of calculation in the development and type approval of coach structures for rollover safety

Kecman, Dusan; Randen, Nigel

Affiliations

¹Cranfield Impact Centre Ltd, United Kingdom

Abstract

The paper reviews the experience with calculation in the development and Type Approval of coach structures according to the ECE Regulation 66 on rollover safety. The main application areas considered are: structural development, Type Approval based on component tests and calculation of the safety structure, identification of the 'worst cases' and 'representative bays' for Approval and assessment of similarity when considering extensions of existing Approvals. Ability to predict beam collapse properties and optimise sections is also presented as a major development aid, Various quasistatic, 'quasi-dynamic' and full dynamic simulation approaches are also discussed and illustrated by practical examples. All the results are extensively supported by experimental evidence. Calculation-related interpretation of the Regulation 66 in UK is summaxised. Finally, the paper reviews the options of achieving weight efficient designs by combining the calculations for rollover safety and normal service loading conditions.

Cited Works (1)

Year	Entry
1985	Kecman D, Tidbury GH. Optimisation of a bus superstructure from the rollover safety point of view. In: Proceedings of the 10th International Technical Conference on Experimental Safety Vehicles (ESV). July 1-4, 1985; Oxford, England.914-918. SAE 856104.

Cited By (1)

Year	Entry
2001	Richardson SA, Grzebieta RH, Bellion P. Proposed four ¼ turn metric to simulate rollover crashes. In: Proceedings of the 17th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 4-7, 2001; Amsterdam, The Netherlands.