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Striated Tire Yaw Marks—Modeling and Validation

Author

Listed:
  • Wojciech Wach

    (Institute of Forensic Research in Kraków, 31-033 Kraków, Poland)

  • Jakub Zębala

    (Institute of Forensic Research in Kraków, 31-033 Kraków, Poland)

Abstract

Tire yaw marks deposited on the road surface carry a lot of information of paramount importance for the analysis of vehicle accidents. They can be used: (a) in a macro-scale for establishing the vehicle’s positions and orientation as well as an estimation of the vehicle’s speed at the start of yawing; (b) in a micro-scale for inferring among others things the braking or acceleration status of the wheels from the topology of the striations forming the mark. A mathematical model of how the striations will appear has been developed. The model is universal, i.e., it applies to a tire moving along any trajectory with variable curvature, and it takes into account the forces and torques which are calculated by solving a system of non-linear equations of vehicle dynamics. It was validated in the program developed by the author, in which the vehicle is represented by a 36 degree of freedom multi-body system with the TMeasy tire model. The mark-creating model shows good compliance with experimental data. It gives a deep view of the nature of striated yaw marks’ formation and can be applied in any program for the simulation of vehicle dynamics with any level of simplification.

Suggested Citation

  • Wojciech Wach & Jakub Zębala, 2021. "Striated Tire Yaw Marks—Modeling and Validation," Energies, MDPI, vol. 14(14), pages 1-21, July.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:14:p:4309-:d:596174
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