A 2D Vehicle-to-Vehicle Crash Model for Fleet Analysis (Part-I)

Document Number: 2005-01-1938

Date Published: April 2005

Author(s):
Mingde Su - DaimlerChrysler Corp.
Guy S. Nusholtz - DaimlerChrysler Corp.
Venkatesh Agaram - DaimlerChrysler Corp.

Abstract:
This paper presents a 2D model for frontal vehicle-to-vehicle crashes that can be used for fleet modelling. It presents the derivational details and a preliminary assessment of the model. The model is based on rigid-body collision principles, enhanced adequately to represent energy dissipation and lateral engagement that plays a significant role in oblique frontal vehicle-to-vehicle crashes. The model employs the restitution and the apparent friction in order to represent dissipation and engagement respectively. It employs the impulse ellipse to identify the physical character of the crash, based on the principal directions of impulse. The enhancement of the rigid body collision model with restitution and apparent friction is based on collision simulations that use very simple finite element vehicle representations. The dependence of the restitution and the apparent friction on the incidence angle, the frontal offset, and the mass ratio, as predicted by the 2D model, has been presented.

File Size: 1769K
Product Status: In Stock

Included in: SP-1937

See other papers presented at SAE 2005 World Congress & Exhibition, April 2005, Detroit, MI, USA, Session: Structural Crashworthiness

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