Momentum - November 2019 - 6
Only about half of the cars were able to finish the 22-km Endurance Event at
Lincoln. Shown is the UT-Arlington car getting the checkered flag while crossing the
finish line in 10th place.
The oiling system was yet another design element the team had
to debate over. At the time, our cars were running a dry-sump oiling
system, for which we had to design an oil pan and purchase a tank. The
outdated oiling system the UTA team had been using for the preceding
five years posed multiple problem areas, such as leaking, packaging, and
oil starvation. In addition to those issues, the oil tank that had been used
was no longer in production.
With these factors in mind, our team took on the project of
redesigning our own dry-sump oil pan and tank to go with the new 2019
car. This new oil pan integrated the lines into the pan itself so that the
packaging of the engine bay did not contain oil lines routed through a
congested area in the car. It also reduced the points where the system
could leak from. Along with those changes, the oil starvation issues
caused by improper placement of the oil pickups were addressed by
testing the engine via a tilt test to determine the most desirable location
for the pickups.
The engine team also built a brand-new tank design based on the
data that was gathered and computer simulations that were run from
the previous year. The new tank included all of the elements of the
production variant, as well as a small window of glass located on the side
so that the oil could be observed from outside of the tank, allowing us to
ensure that the deaeration process was working properly.
With our team focus of spring break in mind throughout the design
and manufacturing phases, we knew that compromises would have to
be made. Car weight is often thought of as the "end all be all" of FSAE,
since we do not have a minimum weight requirement. But we did not
share that opinion. We had seen multiple occasions of part failures
due to an attempt to save miniscule percentages of weight. With the
timeline constraint that we had placed on ourselves, we needed to keep
as much of the manufacturing as possible within the capabilities of our
shop. Our 471-lb car was frowned upon by other teams and judges alike;
other teams with similar design choices were around 400 lb. There were
areas of the car that could have shed weight, but in order to achieve the
necessary timeline we chose not to, and the results speak for themselves.
All of the changes to the car were fantastic, but it would have been for
naught if the team behind the car was not equally as prepared. Everyone
6 November 2019
Cross-sectional photo of the front upright in the jig before being
on the team did all they could to make sure we had the
best car possible. It was a whole team effort including
designers, drivers, and even new recruits who learned
quickly along the way. For static events, we ran mock
events for the design leads on multiple occasions so that
any blind spots would be discovered before a judge found
them. Our drivers got an opportunity that very few drivers
in FSAE get: three months with a car before competition.
This time was also extensively used for tuning the car in
and getting data for design validation-two things that
separate the good from the great.
All of this culminated at Formula Lincoln. The two
previous competitions that I had been to were hectic,
with people running to do final tweaks. But not this time.
All of the events went off without a hitch, and the team
just flowed from one event to the next. We struggled
with the Acceleration and Skid Pad events, but were
able to recover the points in the rest of the events for a
third-place finish in Autocross and a second-place finish
in Design. This led to a third-place finish overall-the first
podium finish for UTA since 2012.
In this past year I have seen so much positive change
in those around me, as well as in myself-so much so,
in fact, that I have decided that I will be continuing my
position as the team captain for an additional year. I now
look back at how FSAE has changed myself, and I would
not change a single decision. Those decisions put me on
the path that I am on, in which I get to affect the lives
of my friends in the best way possible. I hope that I can
inspire someone to take the potential that they have and
develop it to their full potential through FSAE as so many
have done for me.
Chris Dunn, a junior majoring in mechanical
engineering at the University of Texas-Arlington,
wrote this article for MOMENTUM. He is
reprising his role this year as captain of the
university's Formula SAE Team.
Momentum - November 2019
Table of Contents for the Digital Edition of Momentum - November 2019
Momentum - November 2019
One-on-One – Matt Heywood
Experience and innovation walk hand in hand
Baja SAE 2019: a tale of wind, rain (sleet/ mud), and sunshine
‘Complete, finish, win’
Low-speed controlled flight top of mind for Cal State Northridge team
Big data, big benefits for big machines
Mercedes-Benz EQS concept: the S-Class of electric vehicles?
SAE 101: EDGE Research Reports
New SAE student challenge centers on connected aircraft
Miscellaneous news for SAE Student Members!
Dossier: Steve Rehak of Detroit Flex Defense
Momentum - November 2019 - Momentum - November 2019
Momentum - November 2019 - Cover2
Momentum - November 2019 - Contents
Momentum - November 2019 - EDITORIAL
Momentum - November 2019 - BRIEFS
Momentum - November 2019 - STUDENT GENERATION
Momentum - November 2019 - 5
Momentum - November 2019 - 6
Momentum - November 2019 - One-on-One – Matt Heywood
Momentum - November 2019 - Experience and innovation walk hand in hand
Momentum - November 2019 - 9
Momentum - November 2019 - 10
Momentum - November 2019 - Baja SAE 2019: a tale of wind, rain (sleet/ mud), and sunshine
Momentum - November 2019 - ‘Complete, finish, win’
Momentum - November 2019 - 13
Momentum - November 2019 - 14
Momentum - November 2019 - Low-speed controlled flight top of mind for Cal State Northridge team
Momentum - November 2019 - Big data, big benefits for big machines
Momentum - November 2019 - Mercedes-Benz EQS concept: the S-Class of electric vehicles?
Momentum - November 2019 - SAE 101: EDGE Research Reports
Momentum - November 2019 - New SAE student challenge centers on connected aircraft
Momentum - November 2019 - Miscellaneous news for SAE Student Members!
Momentum - November 2019 - 21
Momentum - November 2019 - Dossier: Steve Rehak of Detroit Flex Defense
Momentum - November 2019 - 23
Momentum - November 2019 - What’s next?
Momentum - November 2019 - Cover3
Momentum - November 2019 - Cover4