powerpoint presentation

1. A-Arms report
Nathan Cook
Leroy Wolter
Leonard Healy

2. Front and Rear A-Arms

3. Relevance and effectiveness
Had to design A-Arms for formula SAE 2016 electric race car.
They attach the wheels to the body of the car via strong hollow rods and work
in compliance with the uprights and other components to provide stability
and steering to the front wheels and suspension to the back wheels.
Had to comply with the geometry and parts given to us already.
The A-arms are designed to withstand the transverse and longitudinal loads
that are placed upon the car when the car is turning and braking.

4. Relevance and effectiveness
The A-Arms are made out of chrome moly 4130 which is both cheap light and
strong
The model that has been created had held up initial FEA analysis and can
provide support for the car without breaking
Can be adjusted via easy to access rod ends to change the camber and caster to
optimise the efficiency of the wheels

5. Novelty
Last years car had a problem with the clearance of the rear wheels which was
fixed this year with the new suspension geometry which the A-Arms follow
The A-Arms can be improved with different materials and manufacturing
procedures but not without dramatically driving up the price and time taken
to manufacture. The negatives didn't outweigh the positives.

6. Elegance
since it is easier and cheaper to make and at the same time is more accessible. It
also exceeds all criteria given to us. Better fit for budget. Color matched to car.
Environmentally friendly
Looked at 3 different materials: carbon fibre, carbon fibre kevlar weave and
4130 chrome molly
4130 chrome molly was chosen due to it having far more positives than the
others such as ease of manufacturing, cheaper cost which made it a better
fit for our budget and higher accessibility

7. Genesis
The design of these A-Arms can be taken and be improved in further years by
replacing the chrome moly tubes with tubes of a different material eg
carbon fibre whilst still maintaining the basic design we have created.
The A-Arms design helps solve the problem that last years car has of the wheels
spinning and losing traction when accelerating. It does this by providing the
proper stability needed.

8. Thankyou.
Nathan Cook
Leroy Wolter
Leonard Healy