Tire Skidmark Apparatus – Preliminary Simulations

With the general design coming together I wanted to see how the structure would react with the forces that it will be experiencing. I decided to run a (rather quick and dirty) solidworks simulation to get an idea of where possible points of failure may be.

From this test we can see that the maximum axial and bending stress is more than two orders of magnitude less than the yield strength of the material which is a good indication that a failure mechanism will likely not be from the beems yielding.

This was already to some extend the suspicion though and further simulations will need to be done to evaluate other factors such as vibrations.

Tire Skidmark Apparatus – Updated Solidworks Assembly

For this part, I decided that making models for every single cut was counterproductive and learned how to use the weldment function built into solidworks. It allows for easy conversion from a 3D sketch to a full 3D frame.

There is still a lot of work to be done with some of the more tricky junctions but the general assembly is now coming together.

Tire Skidmark Apparatus – First Solidworks Design

  1. The cut extrusions were all distinct parts making modifications difficult
  2. There was no way to place a sample directly in the center
  3. The top part needed to be optimized to experience less torsional forces
  4. The frame was not able to be easily enclosed with plexiglass panels
Aluminum extrusion profile

This first design made in solidworks had a few big issues