New high precision method for determining vehicle crash velocity based on measurements of body deformation
| Autor: | Artur Dąbrowski, Krystian Siczek, Andrzej Szosland, Przemyslaw Kubiak |
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| Rok vydání: | 2016 |
| Předmět: |
050210 logistics & transportation
Engineering Work (thermodynamics) business.industry Mechanical Engineering 05 social sciences Mathematical analysis Linear model Poison control Transportation 02 engineering and technology Deformation (meteorology) Kinetic energy Collision Industrial and Manufacturing Engineering Nonlinear system 020303 mechanical engineering & transports 0203 mechanical engineering 0502 economics and business Coefficient of restitution business Simulation |
| Zdroj: | International Journal of Crashworthiness. 21:532-541 |
| ISSN: | 1754-2111 1358-8265 |
| DOI: | 10.1080/13588265.2016.1194566 |
| Popis: | Existing methods of determining vehicle velocity based on measurements of body deformation have been based on linear models. This means that the linear relationship between the equivalent energy speed (EES), which is a measure of the kinetic energy lost during the collision of cars, and the value of the ratio Cs, representing the average value of the body deformation, has been sought. The aim of this publication is to present a nonlinear and innovative quick method, or its simpler form, using linearisation in the seven consecutive ranges, for determining EES on the basis of the averaged deformation ratio Cs. The most critical factor for this analysis has been the coefficient bk, representing the slope of the linear relationship. Its fixed value is appropriate only for the rare case of a linear response of a system of cars interacting during a collision with the internal forces generated in the collision, and carrying out the work of deformation. In a more general case, the assumption of a fixed va... |
| Databáze: | OpenAIRE |
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