![Page 1: Road surface and tyre interaction: noise and rolling ... › polopoly_fs › 1.849263.1550157619! › 9.pdf · Why are noise and rolling resistance relevant? Tiago Vieira Photo: Katja](https://reader034.vdocuments.us/reader034/viewer/2022042309/5ed5798a8a812555e4381f22/html5/thumbnails/1.jpg)
Road surface and tyre interaction: noise and rolling resistance Tiago Vieira Workshop – Swedish Node in Nordic Research School for Pavement Engineering
Stockholm, 24th of September 2018
![Page 2: Road surface and tyre interaction: noise and rolling ... › polopoly_fs › 1.849263.1550157619! › 9.pdf · Why are noise and rolling resistance relevant? Tiago Vieira Photo: Katja](https://reader034.vdocuments.us/reader034/viewer/2022042309/5ed5798a8a812555e4381f22/html5/thumbnails/2.jpg)
Why are noise and rolling resistance relevant?
• World Health Organization:
• Noise correlated to: • Ischaemic heart diseases • High blood pressure • Sleep disturbance • Cognitive impairment in children
(WHO, 2011)
Tiago Vieira
Image: mostphotos.se
![Page 3: Road surface and tyre interaction: noise and rolling ... › polopoly_fs › 1.849263.1550157619! › 9.pdf · Why are noise and rolling resistance relevant? Tiago Vieira Photo: Katja](https://reader034.vdocuments.us/reader034/viewer/2022042309/5ed5798a8a812555e4381f22/html5/thumbnails/3.jpg)
Why are noise and rolling resistance relevant?
Tiago Vieira
Photo: Katja Kircher
• Rolling resistance • Fuel consumption • 11.5 % of the energy obtained from fuel is
dissipated in the tyre-road contact
![Page 4: Road surface and tyre interaction: noise and rolling ... › polopoly_fs › 1.849263.1550157619! › 9.pdf · Why are noise and rolling resistance relevant? Tiago Vieira Photo: Katja](https://reader034.vdocuments.us/reader034/viewer/2022042309/5ed5798a8a812555e4381f22/html5/thumbnails/4.jpg)
Within the Swedish Context
Why are noise and rolling resistance relevant?
• 2018-2029: Noise reduction for 100 000
people resulting from pavement- and rail
related improvements
Tiago Vieira
![Page 5: Road surface and tyre interaction: noise and rolling ... › polopoly_fs › 1.849263.1550157619! › 9.pdf · Why are noise and rolling resistance relevant? Tiago Vieira Photo: Katja](https://reader034.vdocuments.us/reader034/viewer/2022042309/5ed5798a8a812555e4381f22/html5/thumbnails/5.jpg)
A contact system: The pavement
Tiago Vieira
Image: Persson 2006
![Page 6: Road surface and tyre interaction: noise and rolling ... › polopoly_fs › 1.849263.1550157619! › 9.pdf · Why are noise and rolling resistance relevant? Tiago Vieira Photo: Katja](https://reader034.vdocuments.us/reader034/viewer/2022042309/5ed5798a8a812555e4381f22/html5/thumbnails/6.jpg)
A contact system: Tyre
Tiago Vieira
Image: Gent, Walter, 2005
Image: Gent, Walter, 2005
Image: Gent, Walter, 2005
![Page 7: Road surface and tyre interaction: noise and rolling ... › polopoly_fs › 1.849263.1550157619! › 9.pdf · Why are noise and rolling resistance relevant? Tiago Vieira Photo: Katja](https://reader034.vdocuments.us/reader034/viewer/2022042309/5ed5798a8a812555e4381f22/html5/thumbnails/7.jpg)
Tyre-road noise
• 16 different mechanisms • 9 generation mechanisms • 7 amplification mechanisms
Tiago Vieira
![Page 8: Road surface and tyre interaction: noise and rolling ... › polopoly_fs › 1.849263.1550157619! › 9.pdf · Why are noise and rolling resistance relevant? Tiago Vieira Photo: Katja](https://reader034.vdocuments.us/reader034/viewer/2022042309/5ed5798a8a812555e4381f22/html5/thumbnails/8.jpg)
Tiago Vieira
Tyre/road Noise and Rolling Resistance measurement
![Page 9: Road surface and tyre interaction: noise and rolling ... › polopoly_fs › 1.849263.1550157619! › 9.pdf · Why are noise and rolling resistance relevant? Tiago Vieira Photo: Katja](https://reader034.vdocuments.us/reader034/viewer/2022042309/5ed5798a8a812555e4381f22/html5/thumbnails/9.jpg)
Effect of winter tyres on noise and rolling resistance?
• SMA 8 • Proxy for reference surface ISO 10844 • Surface Texture: Mean Profile Depth (MPD): 0.78 mm • In service road near Gdańsk, Poland
Road Surface S1
• DAC 16 • Similar to SMA 16 • Surface Texture: Mean Profile Depth (MPD): 1.09 mm • In service road near Gdańsk, Poland
Road Surface S2
Tiago Vieira
![Page 10: Road surface and tyre interaction: noise and rolling ... › polopoly_fs › 1.849263.1550157619! › 9.pdf · Why are noise and rolling resistance relevant? Tiago Vieira Photo: Katja](https://reader034.vdocuments.us/reader034/viewer/2022042309/5ed5798a8a812555e4381f22/html5/thumbnails/10.jpg)
• Noise Spectra:
Effect of winter tyres on noise and rolling resistance?
• Studded tyres differ from other categories specially at higher frequencies (> 4 kHz)
• Studded tyres have higher third-octave band levels all over the frequency range
Tiago Vieira
![Page 11: Road surface and tyre interaction: noise and rolling ... › polopoly_fs › 1.849263.1550157619! › 9.pdf · Why are noise and rolling resistance relevant? Tiago Vieira Photo: Katja](https://reader034.vdocuments.us/reader034/viewer/2022042309/5ed5798a8a812555e4381f22/html5/thumbnails/11.jpg)
Texture optimization: Surface grinding
Tiago Vieira
![Page 12: Road surface and tyre interaction: noise and rolling ... › polopoly_fs › 1.849263.1550157619! › 9.pdf · Why are noise and rolling resistance relevant? Tiago Vieira Photo: Katja](https://reader034.vdocuments.us/reader034/viewer/2022042309/5ed5798a8a812555e4381f22/html5/thumbnails/12.jpg)
• Lack of holistic view • PM-emissions • Road Noise • Rolling Resistance • Friction
• E.g.: • Porous surfaces clog due to abrasion wear (road dust)
compromising its noise reduction ability • Reducing maximum aggregate size reduces rolling resistance while
increasing abrasion wear, thus impacting particle emissions
Current problem
Tiago Vieira
![Page 13: Road surface and tyre interaction: noise and rolling ... › polopoly_fs › 1.849263.1550157619! › 9.pdf · Why are noise and rolling resistance relevant? Tiago Vieira Photo: Katja](https://reader034.vdocuments.us/reader034/viewer/2022042309/5ed5798a8a812555e4381f22/html5/thumbnails/13.jpg)
Thank you for your attention!
Tiago Vieira [email protected]
Supervision: Prof. Sigurdur Erlingsson (VTI/KTH/University of Iceland)
Dr. Ulf Sandberg (VTI) Dr. Anders Genell (VTI)
Sponsorship: