Article

Received 17.05.2024

Revised 31.08.2024

Accepted 27.09.2024

Retrieved from Iss. 116, P. 1, 2024

Pages 206 -217

Ivanushko, O., Razboinikov, O., Klochan, A., & Davydenko, O. (2024). EXPERIMENTAL DETERMINATION OF THE RADIAL STIFFNESS OF A PNEUMATIC TIRE AND THE SIZE OF ITS CONTACT PATCH WITH THE BEARING SURFACE. Automobile Roads and Road Construction, (116.1), 206-217. https://doi.org/10.33744/0365-8171-2024-116.1-206-217

EXPERIMENTAL DETERMINATION OF THE RADIAL STIFFNESS OF A PNEUMATIC TIRE AND THE SIZE OF ITS CONTACT PATCH WITH THE BEARING SURFACE

Oleksandr Ivanushko Oleksandr Razboinikov Arsen Klochan Oleksandr Davydenko

The parameters of a car wheel and its pneumatic tire, in particular, significantly affect both the dynamics of the vehicle and the nature of its interaction with the road surface. This is explained by the fact that the pneumatic tire of a car wheel is the final element of the car structure which directly interacts with the road surface and transfers all forces and moments (acting in the contact patch with the bearing surface) to its suspension and steering. So, on the one hand, the parameters of the interaction of the car wheel with the bearing surface largely determine the controllability and stability of the car, the passability and smoothness of the ride, the fuel economy and the efficiency of the vehicle use in general, etc.; on the other hand, the level of negative impact of the vehicle on the road surface. Accordingly, the parameters of the car wheel and its interaction with the bearing surface are necessary both in the study of the movement of motor vehicles and in the calculation of road wear. This article presents the results of experimental studies on the determination of the radial stiffness of the pneumatic tire 175/70 R 13 82 T (internal pressure 0.2 MPa) and the size of its contact spot with the support surface at different values of the vertical load on the car wheel. The presented research was carried out within the framework of the project "Development of a load model based on the actual parameters of heavy-duty rolling stock to determine the load-carrying capacity of road bridges during their restoration and operation in the war and post-war periods" under the competition "Science for the reconstruction of Ukraine in the war and post-war periods" the grant support account of the National Research Fund of Ukraine

car wheel, pneumatic tire, tire radial stiffness, contact patch between the tire and the supporting surface, road surface, bridge crossing
  1. Jörnsen, R., Helmut, S., & Jürgen, W.B. (2001). The automotive chassis: Engineering principles. Oxford: Butterworth-Heinemann Elsevier Science.
  2. Balakina, K.V., et al. (2020). Development and implementation of a method for determining calculation dependencies for radial and lateral stiffness of automobile tires. In Modern trends in the development of automobile transport and industry mechanical engineering: Proceedings of the International scientific and practical conference dedicated to the 90th anniversary of Kharkiv Automobile and Road University and the 90th anniversary of the Automobile Faculty (pp. 229-231). Kharkiv.
  3. Saarilahti, M. (2002). Survey on tyre contact area and ground pressure models for studying the mobility of forest tractors: Project deliverable D2 (Work Package No. 1) on soil interaction model. Helsinki: University of Helsinki.
  4. Bohomolov, V.O. (2016). Calculated distribution of pressures in the tire contact patch with the road pavement surface. Bulletin of KhNAHU, 72, 143-150.
  5. Balakina, E.V., et al. (2019). The calculation method of the length of contact of car tires with the road surface. IOP Conference Series: Materials Science and Engineering, 632, article number 012022.
  6. Kostenko, A.V. (2007). Prediction of directional stability indicators of a passenger car taking into account the scatter of tire stiffness characteristics. (Doctoral dissertation, Kyiv, Ukraine).

https://doi.org/10.33744/0365-8171-2024-116.1-206-217