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Advances in numerical modelling of crash dummies

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Author: Verhoeve, R. · Kant, R. · Margerie, L.
Type:article
Date:2001
Institution: TNO Wegtransportmiddelen
Source:SV 17th International Technical Conference on the Enhanced Safety of Vehicles, held June 4-7, 2001 in Amsterdam. Session 6: Simulation and Computer Modelling in Vehicle Safety
Identifier: 362623
Article number: Paper No. 152
Keywords: Traffic · crash-test dummies · crash research · design · dummies · hybrid · modelling · numerical analysis · prototyping · research · safety

Abstract

Nowadays virtual testing and prototyping are generally accepted methods in crash safety research and design studies. Validated numerical crash dummy models are necessary tools in these methods. Computer models need to be robust, accurate and CPU efficient, where the balance between accuracy and efficiency is depending on the nature of the study performed. This paper presents the application of advanced multibody-modelling techniques, in order to generate crash dummy models that are accurate as well as CPU efficient. Two techniques, deformable body modelling and arbitrary surface modelling, are combined. Their application is presented by means of an example model: the Hybrid III 50 th percentile thorax. The method for generating the model is explained, after which the accuracy and efficiency of the model is illustrated by presenting some simulation results.