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

• Autorzy: Kubiak Przemyslaw , Sys Ewa , Goslawski Lukasz , Manko Maria , Gralewski Jacek , Krukowski Mateusz , De Sousa Ricardo Alves , Mrowicki Adam , Soghabatyan Tigran , Zou Tiefang

Identyfikatory

DOI

10.14669/AM.VOL85.ART1

• 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.

Słowa kluczowe

EN

air braking systems dynamic; agricultural trailer; braking system optimization; air brake valve

• Wydawca: Wydawnictwo Naukowe Sieci Badawczej Łukasiewicz - Przemysłowego Instytutu Motoryzacji
• Czasopismo: Archiwum Motoryzacji
• Rocznik: 2019
• Tom: Vol. 85, nr 3
• Strony: 5--18
• Opis fizyczny: Bibliogr. 37 poz., rys., tab.

Twórcy

autor

Kubiak Przemyslaw

• Department of Vehicles and Fundamentals of Machine Design, Lodz University of Technology, 1/15 Stefanowskiego Str., 90- 924 Lodz, Polska

autor

Sys Ewa

• Department of Vehicles and Fundamentals of Machine Design, Lodz University of Technology, 1/15 Stefanowskiego Str., 90- 924 Lodz, Polska

autor

Goslawski Lukasz

• Department of Vehicles and Fundamentals of Machine Design, Lodz University of Technology, 1/15 Stefanowskiego Str., 90- 924 Lodz, Polska

autor

Manko Maria

• Institute of Polymer and Dye Technology, Faculty of Chemistry, Lodz University of Technology, 116 Zeromskiego Street ,90-924 Lodz, Polska

autor

Gralewski Jacek

• Institute of Social Sciences and Management of Technologies, Lodz University of Technology, 266 Piotrkowska Str., 90-924 Lodz, Polska

autor

Krukowski Mateusz

• Institute of Mathematics, Lodz University of Technology, 215 Wólczańska Str., 90-924 Lodz, Polska

autor

De Sousa Ricardo Alves

• TEMA–Centre for Mechanical Technology and Automation, Department of Mechanical Engineering, University of Aveiro, Campo Universitário de Santiago 3810-193 Aveiro, Portuga

autor

Mrowicki Adam

• 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

Soghabatyan Tigran

• 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

Zou Tiefang

• 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

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