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Nonlinear method of determining the vehicle pre-crash speed based on B-spline with propabilistic weights - subcompact car class

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
A new non-linear method utilizing the work W of car deformation is considered in this study. The car deformation is defined as an algebraic function of deformation ratio Cs. The method of variable correlation is exploited in order to develop experimental data. To determinate mathematical model parameters, data from the NHTSA database including frontal crash tests are used. Such database is comprised of substantial number of crash cases and main focus was put on frontal impacts. In the non-linear method used so far, the so-called energetic approach, collisions are considered non-elastic. The speed threshold defining the elastic collision was set to be 11 km/h. This simplistic approach is used to determine the linear relation of energy loss during deformation on deformation coefficient Cs. Deformation points C1-C6 are taken into account while calculating a mean value that defines this coefficient. A more accurate non-linear method as well as more complex form of deformation coefficient is suggested to determine the work of deformation in this paper. The focus of those methods is to establish the value of nonlinear coefficient b_k which is the slope factor of precrash velocity Vt and deformation ratio Cs function.
Rocznik
Strony
5--18
Opis fizyczny
Bibliogr. 37 poz., rys., tab.
Twórcy
  • Department of Vehicles and Fundamentals of Machine Design, Lodz University of Technology, 1/15 Stefanowskiego Str., 90- 924 Lodz, Polska
autor
  • Department of Vehicles and Fundamentals of Machine Design, Lodz University of Technology, 1/15 Stefanowskiego Str., 90- 924 Lodz, Polska
  • Department of Vehicles and Fundamentals of Machine Design, Lodz University of Technology, 1/15 Stefanowskiego Str., 90- 924 Lodz, Polska
autor
  • Institute of Polymer and Dye Technology, Faculty of Chemistry, Lodz University of Technology, 116 Zeromskiego Street ,90-924 Lodz, Polska
  • Institute of Social Sciences and Management of Technologies, Lodz University of Technology, 266 Piotrkowska Str., 90-924 Lodz, Polska
  • Institute of Mathematics, Lodz University of Technology, 215 Wólczańska Str., 90-924 Lodz, Polska
  • TEMA–Centre for Mechanical Technology and Automation, Department of Mechanical Engineering, University of Aveiro, Campo Universitário de Santiago 3810-193 Aveiro, Portuga
  • Department of Vehicles and Fundamentals of Machine Design, Lodz University of Technology, Lodz University of Technology, 1/15 Stefanowskiego Str., 90-924 Lodz, Polska
  • Department of Vehicles and Fundamentals of Machine Design, Lodz University of Technology, Lodz University of Technology, 1/15 Stefanowskiego Str., 90-924 Lodz, Polska
autor
  • School of Automobile and Mechanical Engineering, Changsha University of Science and Technology, 410004 Hunan Province, Changsha City ( District ) Wan Jiali Road 2 No. 960, China
Bibliografia
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  • [37] Żuchowski A. The use of energy methods at the calculation of vehicle impact velocity. Archiwum Motoryzacji, 68, 2015,85-111,197-222
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-b37e43fc-a593-4c39-a290-a69def41cfce
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