Video Exclusives


Inside Arctic Falls' Indoor Flex facility

Sentury

Raw footage taken in the new test hall at the Swedish proving ground, scheduled to open later this month

Click here to watch the video


Michelin launches recycling campaign

Sentury

The French tire maker has unveiled its ambitious future recycling strategy to ensure that by 2048, all of its tires are manufactured using 80% sustainable materials, and 100% of all end-of-life tires are recycled.

Click here to watch the video


A glimpse at Nokian's new test facility

Sentury

A rendering of the tire maker's new technology center in Spain shows what the facility will look like when it is complete in 2019. Find out more in the March 2018 issue (p60) of TTI

Click here to watch the video


In what year did Bridgestone officially launch its first run-flat tire?

News

Oxford Brookes Formula Student team uses Kistler Correvit S-Motion two-axis optical sensor

The Oxford Brookes Formula Student team recently used a Correvit S-Motion two-axis optical sensor from Kistler Instruments to obtain key data on tire slip angle, needed for accurate, real world tire modeling.

The university decided that better tire modeling was essential for their 2018 campaign than the data provided by a sandpaper belt test rig, courtesy of the Formula SAE Tire Test Consortium.

Head of tire modeling, Brad Mallinson, explained, “While vertical load, inclination angle, ride heights, and vehicle roll angle are relatively easily measured, tire slip angle is very difficult but critical to the development of an accurate tire model. Kistler’s S-Motion sensor accurately measures vehicle longitudinal and transverse speed and slip angle with a high logging rate, which is essential for the relatively low-speed Formula Student driving events.”

The S-Motion unit was mounted on the 2017 Oxford Brookes Formula Student car, along with load cells, infrared tire temperature and laser ride height sensors, to collect as much tire data as possible. A major benefit of the S-Motion system is the time-saving plug-and-play capability, which drastically reduces vehicle preparation time – essential to take full advantage of the short timeframe for tire testing after the Formula Student season. A further benefit provided by the Correvit system is the ability to automatically transform speed and slip angle measurements to any point of interest on the vehicle. These were transformed to the center of gravity where yaw rate was measured, simplifying tire slip angle calculation during steady-state tests.

Testing consisted of increasing velocity runs on a constant radius skid pad for a minimum of three cold inflation pressures and three static camber settings to capture the quadratic relationships in the lateral force model. Quantities derived from measurements were calculated in Matlab before being passed to the tire model tool. Roll angle measurements from the S-Motion and damper displacement data were used for lateral weight transfer models to determine inclination angle and total vertical load. Steered angle of each front wheel was used to calculate front tire slip angles using vehicle slip angle from the S-Motion. 

Pics: Brad Mallinson

March 1, 2018

Written by Rachel Evans


RECEIVE THE
LATEST NEWS


Your email address:



Read Latest Issue

Read Latest Issue

Read Latest Issue

Web Exclusives

Arctic Falls' Indoor Flex facility now operational
The grand opening of Arctic Falls' new Indoor Flex facility, which will offer new tire and vehicle testing possibilities, is scheduled for the end of June.
Read Now

ETRMA consolidates used tire management data for 2016
Data gathered by the ETRMA from 32 countries in the EU shows that 94% of used tires in 2016 were collected and treated
Read Now

BKT in R&D tie-up with Kultevat
Indian tire giant BKT has entered into a research and development partnership with US biotechnology firm Kultevat to further the use of TKS rubber as a substitute for natural rubber
Read Now

Completely truckworthy
Bridgestone America's director for commercial tire development, Mitchel Kritzell, gives an update on the SuperTruck II program
Read Now

Q&A: Sam Visaisouk, CEO, Tyromer
The Retread Tire Association (RTA) speaks with Tyromer CEO, Sam Visaisouk, about the testing of its new tire-derived polymer recycled rubber product in truck and passenger car tires
Read Now


Supplier Spotlight

Supplier SpotlightWe are building a list of leading suppliers covering all aspects of the tire industry. Want to see your company included? Contact olivia.campbell@ukimediaevents.com for more details.

Submit your industry opinion

Industry BlogDo you have an opinion you'd like to share with the tire technology community? We'd like to hear your views and opinions on the leading issues shaping the industry. Share your comments by sending up to 500 words to rachel.evans@ukimediaevents.com

Submit Your Recruitment Ad

Recruitment AdTo send us your recruitment advertising or to receive information on placing a banner please email olivia.campbell@ukimediaevents.com