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 1. BTCC racing champion wins with design space exploration and optimization

Estudo de Caso


BTCC RACING CHAMPION WINS WITH DESIGN SPACE EXPLORATION AND OPTIMIZATION

HEEDS software helps Triple Eight Race Engineering determine optimal setups for
a competitive edge


TRIPLE EIGHT RACE ENGINEERING

Triple Eight has a rich heritage in motorsport. Since its founding in 1996, the
team has won more races and championship titles than any other in the British
Touring Car Championship.

http://tripleeight.com.au
Matriz: Banbury, Oxfordshire, United Kingdom
Produtos: Heeds
Setor industrial: Automotive & transportation

COMPARTILHE

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DESAFIOS

 * Optimally configure racing cars for shortest lap times

 * Short time frames for implementing design changes on the racing circuit


KEYS TO SUCCESS

 * Racing car consulting services from Zouch Dynamics Ltd.

 * Guidance from the Global HEEDS Design Space Exploration team


RESULTADOS

 * Most successful racing team in the British Touring Car Championship

 * More than 100 race wins and 22 titles

> The performance we were able to extract from the car on what was essentially
> day two of testing for us was beyond all expectations and is due in no small
> part to the effort and direction that Zouch Dynamics and HEEDS software
> provided.

Carl Faux, Chief Designer
Triple Eight Race Engineering


DOMINATING THE BTCC

Triple Eight Race Engineering was founded in late 1996 and is based in the
United Kingdom near the Silverstone Grand Prix circuit. The company is best
known for its motor race exploits, most notably in the British Touring Car
Championship (BTCC). Triple Eight Race Engineering is proud of its record as the
most successful team ever to compete in the BTCC. To date the team has won over
100 races and 22 titles including Champion Driver (five times) and Champion
Manufacturer (six times).


NEW TEAM, NEW VEHICLE, VERY LITTLE TIME

“Going into a program to design and manufacture a contender for the BTCC season
in the timescales we had was an unbelievable challenge,” says Carl Faux, chief
designer at Triple Eight Race Engineering. “At the very least we would require
six months’ design time and many days of circuit testing in normal
circumstances. Our priorities were reliability and finishing races; however, the
performance we were able to extract from the car on what was essentially day two
of testing for us was beyond all expectations and is due in no small part to the
effort and direction that Zouch Dynamics and HEEDS software provided. From
getting the first validations on Saturday, this allowed us to make some changes
overnight that we had confidence in, and they proved that we were in the game
right from the start.”

“One of the reasons the car has been so fast, so quickly and with such limited
testing is the setup direction the team received from the HEEDS and
VI-Motorsport optimization,” says David Ewbank of Zouch Dynamics Ltd.


HEEDS SOFTWARE CONTRIBUTES TO TRIPLE EIGHT’S SUCCESS

The key to Triple Eight’s success has been enlisting the help of consultants at
Zouch Dynamics Ltd. (ZDL), a specialist consultancy for racing car simulation,
which used VI-Motorsport vehicle simulation software, developed by VI-grade, to
create an accurate model of the MG6 BTCC car. The model was used to predict the
vehicle dynamics of the actual MG6, which helps race cars designers and track
engineers to predict vehicle performance when setup parameters are modified.

The MG6 model was used in conjunction with HEEDS® design optimization software
to evaluate the performance of the car and find the setup that yielded the
shortest lap time. This setup helped MG KX Momentum driver Jason Plato to place
fourth and third in early races, and then finish first in the final race of the
weekend.


RACE-SPECIFIC SETUP OPTIMIZATIONS WITH HEEDS

The first event on the BTCC 2012 schedule was Brands Hatch on April 3. Following
some direction from Triple Eight, ZDL provided guidance regarding springs and
anti-roll bars. A HEEDS model was implemented to call the VI-Motorsport software
to adjust front and rear springs to the available rates and to adjust the
anti-roll bar options, with a single objective for lowest lap time around the
Brands Hatch track. Although ZDL was missing data for damper performance, final
drive ratio, engine torque curve, and jounce stopper clearance and rates, they
were still able to run the optimization. The results for springs and anti-roll
bars proved to be robust and insensitive to unknowns, so ZDL passed these
results to the team just before the Brands Hatch race. For the first race of the
day, the Triple Eight team went with their qualifying setup (not optimized) and
achieved a better-than-expected finish. They implemented the optimized setup for
the second race, and the car’s balance improved considerably, resulting in a
third place. They were then able to do some fine-tuning on other settings and
used the HEEDS/VI-Motorsport setting for the final race, achieving the
unexpected first place.


DONINGTON RACE

Following the highly successful Brands Hatch race, the VI-Motorsport model was
populated with the available design data, and refinements were made to the model
to bring it closer to the physical vehicle. There was minimal opportunity for
any correlation exercise and no time to explore major setup changes. HEEDS was
set up to vary the spring rates, anti-roll bar settings, tire pressures and bump
stops, and to optimize the car setup to achieve the minimum lap time around the
circuit. Approximately 250 iterations were used to find the final optimum lap
time. The base setup was found within 75 iterations, the remaining iterations
were for fine-tuning, looking for gains on the order of a few hundredths of a
second.

The HEEDS-optimized setup was used for qualifying, and Plato put his MG KX
Momentum car on pole position for the race despite carrying the maximum ballast
of 45kg. In the final race, the car started from 17th place, but Plato was able
to use the car’s speed advantage through the corners to achieve an excellent
second place.


THRUXTON RACE

The build-up to Thruxton allowed time to look at the fundamental characteristics
of the car and to address some of the shortcomings with the suspension design.
With the aid of simulation, the team was able to make several significant gains
in the suspension performance and create a more linear operating condition.

The team also started looking ahead to identify further aspects of the design
that could be improved. The improvements were included in the HEEDS optimization
model and the optimization was run again, varying the usual parameters, plus
several additional ones to find the best setup for optimal lap time around
Thruxton. As part of the rules of TOCA (which organizes and administers the
BTCC) that prevent one team from maintaining a performance advantage over the
other teams, competitors’ cars were awarded a power boost for Thruxton. So,
finding the optimal setup to maximize vehicle speed through the high-speed turns
around BTCC’s fastest track was critical. Weather also played an important
factor in the race weekend, with rain and high winds forecast. Without access to
appropriate tire data for the BTCC wet tires, the team stayed with the “dry”
setup for optimization. Overall, 500 iterations were used to identify the
optimal setup, although the base setup parameters were found after 140
iterations, with the remainder really aimed at fine-tuning. However, the data
from all these iterations was be useful in further understanding the behavior of
the car and the interaction among different parameters on the overall
performance. In the first race, Plato was able to finish third, but not able to
overtake the cars in front in the very wet conditions. The second race was not
as wet, and Plato managed to finish second. In the final race of the day, Plato
finished fourth, despite having a faster car than the one in third position.