Jinx 2020-21

Project Poster (Winter 2020)

Jinx Winter Design Review Poster

Manufacturing Phase I (December 2019-March 2020)

Jinx's tube-frame chassis.

Jinx’s tube-frame chassis.

Developing Digitally During the COVID-19 Pandemic

In March 2020, the manufacturing phase of Jinx was suspended due to the COVID-19 Pandemic. Since then, Anteater Formula Racing has been working virtually to further develop Jinx’s performance prior to resuming manufacturing in Fall Quarter 2020. Check out some screenshots of our work during the Spring and Summer:

(Click thumbnails to enlarge.)

Aerodynamics

“Each image shows stream lines from half-car Computational Fluid Dynamics (CFD) simulations during our iterative process to increase the downforce produced by aerodynamic surfaces. The first picture shows the 3D streamlines of the front wing area, while the other two show 2D stream lines of different planes along the car’s length.”

– Nick Domingo, Aerodynamics Lead Engineer

Aero 1
Aero 2
Aero 3

Chassis

“The image on the left is a solidworks simulation – with forces which will be used as initial conditions for our validation experiment  – which treats each tube joint as a node to calculate as beam deflections and simplify calculation time. Using the deflections throughout the chassis from this simulation, a spring in series calculation was used to find a torsional rigidity of 1780 lb-ft/deg. This number is the standard to refer to with the validation jig shown below. The same weight will be applied and the rear will be fixed with concrete weights to mimic the same initial conditions. The image on the right is the setup for the torsional rigidity jig that was designed”

-Michael Tauvar, Chassis Lead Engineer

 
Capture
Image from iOS
 

Electronics

“After a couple redesigned battery holder models, this is our final battery holder, shown in the first image. It will be welded onto the chassis and held down by two velcro straps offering fast and cheap manufacturing, while still holding down the battery with 1g force in all directions. The second image shows a 3D model of the Brake System Plausibility Device  (BPSD). While implementing new electronic throttle control, BSPD are required by FSAE rules to ensure maximum safety, our final design of the system has a compact size maintaining all requirements needed. It has been manufactured and awaiting testing soon.”

-Qisheng Lei, Electronics Lead Engineer

 
Battery holder
BSPD pcb
 

Human Interface

“To accommodate the Electronic Throttle control (ETC) and the adjustable nature of the pedal box, the throttle pedal (second picture) was designed with geometry that provided a positive pedal stop (hence the triangular shape), throughout the various height settings. The ETC is comprised of a sensor and magnet assembly and the magnet is secured onto the shaft (first picture). The shaft and pedal interface via an interference fit. The third picture is the throttle mount with the magnet and sensor assembly.”

-Andrew Diaz, Human Interface Lead Engineer

Shaft
Main body
Pedal

Powertrain

“The intake picture is the finalized CAD model of the air intake which is manufactured from carbon fiber and 6061 aluminum. The colorful Computational Fluid Dynamics (CFD) picture conveys the CFD for the intake, which plots the velocity profile of air throughout the air intake. The oil pan picture shows the CAD model of the oil pan which is made from 5052 aluminum”

– Mason Socha, Powertrain Lead Engineer

Screenshot 2020-12-08 202143
unnamed
Screenshot 2020-12-28 095540

Suspension

“The left image is the rear rocker tab and the right image is the rear rocker drawing. The tab is what holds the rocker to the chassis. The rear rocker is what distributes forces to and from the pushrod to the damper at a specific angle.”

-Gage Bulette, Suspension Lead Engineer

jig

Manufacturing Phase II (October 2020-present)

Jinx's wiring harness
Jinx’s wiring harness

 

Backside of Jinx's tube-frame chassis
Backside of Jinx’s tube-frame chassis

 


Aerodynamics sub-team continues work on the aero package

 


Troubleshooting the engine fuel map

 

Jinx is alive!

Outcome


Jinx is ready for competition!

Jinx passed all technical inspections besides the last one due to a failed fuel pump. As a result, it was not able to compete.

Check out our new car, PPE!