dr inż. Wojciech Owczarzak
Employment
- Assistant professor at Institute of Mechanics and Machine Design
Social media
Contact
- wojciech.owczarzak@pg.edu.pl
Publication showcase
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Engineering method of tire rolling resistance evaluation
Tire rolling resistance is one of the most difficult tire parameters to measure. The reason is that for modern tires the force of rolling resistance corresponds to 0.5–1% of tire load, thus measurements of very small forces must be performed in a heavily loaded system. This constitutes great problems, especially in road conditions. Laboratory measurements are easier to perform, as the environment may be better controlled, but roadwheel...
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Method of estimating the rolling resistance coefficient of vehicle tyre using the roller dynamometer
The tendency in the past few years has been to introduce tyres with lower rolling resistance coefficients to the market. This paper presents a mathematical method for determining the rolling resistance coefficients variation depending on the speed. The method uses power balance which results from automobile dynamics while rolling on chassis dynamometer. The rolling resistance coefficients of tyres obtained through ‘drum test method’,...
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Comparison of Tire Rolling Resistance Measuring Methods for Different Surfaces
The rolling resistance of car tires is one of the most important parameters characterizing tires today. This resistance has a very significant contribution to the energy consumption of wheeled vehicles. The climate crisis has forced tire and car manufacturers to place great emphasis on the environmental impact of their products. Paradoxically, the development of electric vehicles has led to an even greater importance of rolling...
Obtained scientific degrees/titles
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2020-07-03
Obtained science degree
dr inż. mechanical engineering (Engineering and Technology)
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