Objective

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• Figure out how a double wishbone suspension works

• Find out what makes up a suspension

  • bell crank tab, shock mounting tab, toe-rod, etc.

• Look into “multilevel” frame arc - see notes over suspension conversation from today.

• Design considerations for frame to accommodate front suspension geometry

• Look at the old susp design, and what we could change about that so the new sys is the best it could be.

• What loads are gonna be at these hardpoints, and how do we create geometry (cross brace) to counteract?

By the end of 10/19/2024, have the following done:

• Project goals

• Background research

• Notes from discussion with suspension

• Any design criteria and other considerations

• Any sources used

• Any visuals used

Double Wishbone Suspension - How does it work?

To first understand DWS, it’s important to understand camber.

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These are cool because they allow each suspension to act independently - if there is a bump on the road that affected only the front right wheel, it’s suspension system is the only one that would react. (Race Car Design by Derek Seward - 3.1: Introduction to Racing Car Suspensions)

The Bell Crank

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Push Rod, Bell Crank, Shock

A push rod “pushes” so that the bell crank can transfer motion to the shock. (pull rods also exist)

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Below are diagrams, ignore everything except for the bottom left hexagon. It’s a diagram of how suspension would look like on the front frame.

Taking a look at the Old Suspension and Frame Systems

Observations (suspension)

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