...PETER MILLAR n'Ç//Ž PETER MILLAR PETER MILLAR PETER MILLAR Created Date 9/11/2019 2:52:33 PM ...
David Woodward, Phillip Millar University of Ulster and ...
Transcript of David Woodward, Phillip Millar University of Ulster and ...
![Page 1: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/1.jpg)
David Woodward, Phillip Millar
University of Ulster
and
Campbell Waddell
Findlay Irvine Ltd
![Page 2: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/2.jpg)
This presentation
• Looks at combining the
traditional straight line
measurement of grip with
lateral variation
• Uses data from 2 devices
• Gives some examples
![Page 3: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/3.jpg)
Asphalt / tire / vehicle + time
![Page 4: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/4.jpg)
Why wet grip?
0
0.2
0.4
0.6
0.8
1
1.2
0 200 400 600 800 1000
Chainage (m)
Gri
pN
um
be
r
Limestone Gritstone Gritstone
![Page 5: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/5.jpg)
Doing research
![Page 6: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/6.jpg)
![Page 7: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/7.jpg)
NW 200 - road racing in N. Ireland
![Page 8: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/8.jpg)
Difference between dry and wet
grip (at 50km/h)
![Page 9: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/9.jpg)
Plotting grip data using GIS
![Page 10: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/10.jpg)
![Page 11: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/11.jpg)
![Page 12: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/12.jpg)
Vehicle properties taken from
Racelogic VBox3i
![Page 13: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/13.jpg)
Undergraduate project relating what a
kart is doing in relating to grip
![Page 14: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/14.jpg)
High pressure water used to improve
race track grip at slippery corners
![Page 15: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/15.jpg)
![Page 16: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/16.jpg)
Huge variation in wet grip around the
track in the racing ine
![Page 17: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/17.jpg)
Longitudinal and
lateral variations
![Page 18: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/18.jpg)
Measured grip and position
![Page 19: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/19.jpg)
1st attempt to plot GPS grip data
using Excel
![Page 20: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/20.jpg)
Much easier using GIS
![Page 21: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/21.jpg)
![Page 22: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/22.jpg)
23rd January 1st May
6th May 9th May
Short-term variations
![Page 23: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/23.jpg)
Same data with differing thresholds
![Page 24: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/24.jpg)
Silverstone F1 track example
![Page 25: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/25.jpg)
![Page 26: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/26.jpg)
![Page 27: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/27.jpg)
![Page 28: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/28.jpg)
![Page 29: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/29.jpg)
Track day at Silverstone
![Page 30: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/30.jpg)
![Page 31: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/31.jpg)
Using frequency distributions to
compare tracks
![Page 32: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/32.jpg)
To show the effect of treating
slippery corners
![Page 33: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/33.jpg)
Yas Marina F1 track example
![Page 34: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/34.jpg)
Our GripMap – 3 hours work
![Page 35: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/35.jpg)
Yas Marina F1 track
• Abu Dhabi
• $600 million track
• Part of $2 billion Yas Island development
• Wanted best race track in the world
![Page 36: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/36.jpg)
Unpacking the GripTester
![Page 37: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/37.jpg)
![Page 38: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/38.jpg)
Slowest lap and slowest accident
![Page 39: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/39.jpg)
Damage after rolling the GT at 20mph
![Page 40: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/40.jpg)
GripMap / Google Earth overlays
![Page 41: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/41.jpg)
![Page 42: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/42.jpg)
My co-authors
![Page 43: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/43.jpg)
Packing up
![Page 44: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/44.jpg)
Race control
![Page 45: David Woodward, Phillip Millar University of Ulster and ...](https://reader034.fdocuments.net/reader034/viewer/2022043013/626b6463c01e6e402b541685/html5/thumbnails/45.jpg)
Thankyou