Momentum - March 2020 - 8

STUDENT
GENERATION

The FPM19 in the wind tunnel of the University of Ontario during the UOIT Shootout.

A team member of FPM meticulously prepares a mold for the new
aerodynamics package of the 2019 challenger.
The development of the aero package began back in
autumn 2017, when we started the CFD work and drafting
concepts of the internal structure and the possible
attachments to the chassis. Two prototypes were built:
one fitted on the 2017 car and then one on the 2018 car. An
important part of our design process resides in validation
of our concepts by physical testing on the cars-and not
only before competition. During the entire design process,
as much as we can we upgrade the previous year's car

with new designs. Based on these first concepts and prototypes, further
CFD work was accomplished in the design phase of the 2019 vehicle in
order to refine the shape of the wings and produce an aero map. The main
objective in CFD was then to maximize downforce, with little emphasis put
on drag at first.
The design targets were simultaneously refined to make sure the
aero package would be effective. As a matter of fact, with the low
speeds of a typical Formula SAE circuit, the gain of downforce can
easily be eaten out by the performance loss that comes with added
drag and mass. This is where laptime simulation comes into play. We
used a simulation tool, developed and validated by a senior team
member over two years using Matlab and Simulink, to fix design
targets and test concepts. This tool allowed us to run a laptime
sensitivity analysis depending on mass, drag coefficient, and lift
coefficient. A map of these parameters then gave us the brackets in
which we had to work for the aero pack to be effective and result
in points gain at competitions. We then decided the 2019 vehicle's
aero pack would consist of only a rear and front wing, respecting our
philosophy of doing less while keeping higher quality standards.
Our main design objective for all systems on the car being reliability,
the final design for the wing mountings and internal structure had to
be bulletproof (or at least "cone-proof"). Proof of concept of this final
design was produced as early as January 2019 to test both the processes
and the product. With the rigidity and quality of the system deemed
acceptable, we then went forward, with great focus on the surface finish
and assembly fit, which impressed the judges in the Design Event at
both Michigan and Lincoln.

PREPARATION, BALANCE, AND SIMPLICITY

A full-car CFD model of the FPM19 was made in Siemens Star CCM+.

8 March 2020

2003_SG_4-11.indd 8

A huge part of the success we had in the events in Lincoln resides in
preparation. We got there with a car that we had tested for more than
a half thousand kilometers. Pretty much everything was sorted out, and
there were no big surprises. The setups were ready, the drivers were
ready, and the whole team was trained for competition.
The Design Event was also a big hit for us. It is a great honor to
reach Design Finals, but we never thought winning the event was
possible with a car as simple as ours. Yet, the best positive feedback
we had was not really about a particular system, but instead about
how all the systems were designed with the same goals in mind
and with simplicity, without anything being left behind. The level of
understanding of vehicle dynamics by the team and the extensive
use of simulation tools were also key points of our high Design score.

MOMENTUM

2/17/20 11:10 AM



Momentum - March 2020

Table of Contents for the Digital Edition of Momentum - March 2020

Momentum - March 2020
Contents
Building a career in mobility
BENEFITS U
Making sense on sensors
Victory at last
Keeping it light
BRIEFS
GM’s Cruise self-driving vehicle built for upgradable hardware
New seal improves performance
SAE 101: personal and financial well-being, SAE style
SAE 101: personal and financial well-being, SAE style
Dossier: Noah Lukins of May Mobility
Occupational benefits of competing in technical collegiate competitions
Momentum - March 2020 - Momentum - March 2020
Momentum - March 2020 - Cover2
Momentum - March 2020 - Contents
Momentum - March 2020 - Building a career in mobility
Momentum - March 2020 - BENEFITS U
Momentum - March 2020 - Making sense on sensors
Momentum - March 2020 - 5
Momentum - March 2020 - 6
Momentum - March 2020 - Victory at last
Momentum - March 2020 - 8
Momentum - March 2020 - 9
Momentum - March 2020 - Keeping it light
Momentum - March 2020 - 11
Momentum - March 2020 - BRIEFS
Momentum - March 2020 - 13
Momentum - March 2020 - GM’s Cruise self-driving vehicle built for upgradable hardware
Momentum - March 2020 - New seal improves performance
Momentum - March 2020 - SAE 101: personal and financial well-being, SAE style
Momentum - March 2020 - SAE 101: personal and financial well-being, SAE style
Momentum - March 2020 - Dossier: Noah Lukins of May Mobility
Momentum - March 2020 - 19
Momentum - March 2020 - Occupational benefits of competing in technical collegiate competitions
Momentum - March 2020 - Cover3
Momentum - March 2020 - Cover4
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