Details
| Original language | English |
|---|---|
| Pages (from-to) | 157-174 |
| Number of pages | 18 |
| Journal | VDI Berichte |
| Volume | 2022 |
| Issue number | 2398 |
| Publication status | Published - 2022 |
Abstract
The target conflicts in tread pattern development of tires to provide maximal force transmission on different surfaces, e.g. snowy and dry roads are well known. Different weather conditions require their own design that considers the main mechanisms acting between the tire tread block and the road surface. The trend to using all season instead of summer and winter tires requires additional investigations to find the best solution considering several different road conditions. This paper analyzes the influence of the inclination angle of tire tread blocks and its siping philosophy on different surfaces. The tests with various single tread blocks were carried out on the hybrid test rig RePTiL (Realistic Pattern Testing in Lab) at the Institute for Dynamics and Vibration Research of the Leibniz University of Hannover. This test rig allows to mimic the friction process of a tire tread block running through a footprint under driving and braking conditions in the laboratory. Tread blocks with different numbers of sipes were rotated with an angle between 0° to 90° in 15° increments. Parallel siped blocks as well as 0° siping with 45° block angle were also part of the investigation. In order to simulate different road conditions, real road wet and dry asphalt, artificially produced ice and snow tracks were used. For a better understanding of the mechanisms, high-speed images of the same samples sliding over a glass track were taken from below. Forces in all three directions are used for evaluation, and the resulting coefficient of friction is calculated. The measurement results and videos on the one hand help to understand the influence of an inclination angle of a tread block sample on the friction process and show the different friction mechanisms acting on various surfaces. On the other hand, the results show clear favorites for optimizing performance on single as well as across all surfaces.
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In: VDI Berichte, Vol. 2022, No. 2398, 2022, p. 157-174.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Realistic lab test pattern studies of rotated tread block samples measuring longitudinal and lateral forces on different road surfaces (dry, wet, snow and ice)
AU - Heidelberger, Jonas Alexander
AU - Wangenheim, Matthias
AU - Wiese, Klaus
AU - Wies, Burkhard
AU - Bederna, Christoph
PY - 2022
Y1 - 2022
N2 - The target conflicts in tread pattern development of tires to provide maximal force transmission on different surfaces, e.g. snowy and dry roads are well known. Different weather conditions require their own design that considers the main mechanisms acting between the tire tread block and the road surface. The trend to using all season instead of summer and winter tires requires additional investigations to find the best solution considering several different road conditions. This paper analyzes the influence of the inclination angle of tire tread blocks and its siping philosophy on different surfaces. The tests with various single tread blocks were carried out on the hybrid test rig RePTiL (Realistic Pattern Testing in Lab) at the Institute for Dynamics and Vibration Research of the Leibniz University of Hannover. This test rig allows to mimic the friction process of a tire tread block running through a footprint under driving and braking conditions in the laboratory. Tread blocks with different numbers of sipes were rotated with an angle between 0° to 90° in 15° increments. Parallel siped blocks as well as 0° siping with 45° block angle were also part of the investigation. In order to simulate different road conditions, real road wet and dry asphalt, artificially produced ice and snow tracks were used. For a better understanding of the mechanisms, high-speed images of the same samples sliding over a glass track were taken from below. Forces in all three directions are used for evaluation, and the resulting coefficient of friction is calculated. The measurement results and videos on the one hand help to understand the influence of an inclination angle of a tread block sample on the friction process and show the different friction mechanisms acting on various surfaces. On the other hand, the results show clear favorites for optimizing performance on single as well as across all surfaces.
AB - The target conflicts in tread pattern development of tires to provide maximal force transmission on different surfaces, e.g. snowy and dry roads are well known. Different weather conditions require their own design that considers the main mechanisms acting between the tire tread block and the road surface. The trend to using all season instead of summer and winter tires requires additional investigations to find the best solution considering several different road conditions. This paper analyzes the influence of the inclination angle of tire tread blocks and its siping philosophy on different surfaces. The tests with various single tread blocks were carried out on the hybrid test rig RePTiL (Realistic Pattern Testing in Lab) at the Institute for Dynamics and Vibration Research of the Leibniz University of Hannover. This test rig allows to mimic the friction process of a tire tread block running through a footprint under driving and braking conditions in the laboratory. Tread blocks with different numbers of sipes were rotated with an angle between 0° to 90° in 15° increments. Parallel siped blocks as well as 0° siping with 45° block angle were also part of the investigation. In order to simulate different road conditions, real road wet and dry asphalt, artificially produced ice and snow tracks were used. For a better understanding of the mechanisms, high-speed images of the same samples sliding over a glass track were taken from below. Forces in all three directions are used for evaluation, and the resulting coefficient of friction is calculated. The measurement results and videos on the one hand help to understand the influence of an inclination angle of a tread block sample on the friction process and show the different friction mechanisms acting on various surfaces. On the other hand, the results show clear favorites for optimizing performance on single as well as across all surfaces.
UR - http://www.scopus.com/inward/record.url?scp=85134523534&partnerID=8YFLogxK
U2 - 10.51202/9783181023983-157
DO - 10.51202/9783181023983-157
M3 - Article
AN - SCOPUS:85134523534
VL - 2022
SP - 157
EP - 174
JO - VDI Berichte
JF - VDI Berichte
SN - 0083-5560
IS - 2398
ER -