Rev 9.1

Folder Path:

D:\Users\Roo\Documents\GrabCAD\MSXIV sims\MS-CHASSIS\Spring 2021 Reinforcement Sims

File Name:

September 25_Rev9.1

This project file was created using Rev 9.0 as the base project.

All 4 passenger masses were turned on.

Front Bar - Passes

Back Bar - Passes

Side 30 Wall - Passes

Side 60 Wall - Passes now 2021.09.27

Open

Open

I checked the CAD and it seems to be setup properly. I’m not too sure why it shows high stresses here.
It might be because the front bottom tube is 1.75in height and causes weird behaviour at the tip of the short vertical tube?
Try to extend the short vertical tube past the front bottom tube (1.75in) in spaceclaim?

This joint has been fully gussetted and the gussets don’t seem to change the stress values.

I’m a fucking genous

A Pillar - Passes

B Pillar - Passes

C Pillar - Passes

Front 30 Wall - Passes Now 2021.09.28

^This is a bottom view by the way.

I checked the spaceclaim geometry (connected and beam profile is normal) and mechanical contacts (it’s connected with the correct tubes) of this tube.

Add giant square gusset in model.

Real life = shims all around the gusset or make gusset thicker, etc.

I tried to extend the 1.5 tube past the small tube a bit. Had to also extend the short tube past the long tube. ~30mm each.

This removed the max stress at the location, but need to deal with the other one now.

Next Iteration: Add bigger gusset by enlarging it in spaceclaim.

It worked hoho.

Front 60 Wall - Passes now 2021.09.27

Gussets were added. Stress did not change at all.

Try to extend beam element to go past the front horizontal tube. Do this in spaceclaim?

Or try super tube now in someway now?

What is strange is that the vertical tube and horizontal tube show low stress. It’s just these tips.

The catamaran tube and the front vertical short tubes were extended slightly which caused the simulation to act more uniformly. This resulted in the sim passing.

Top 60 Wall

Contacts were only made for the red area tubes. I think that’s why we see high concentrate stresses.
We need to add contacts between the collision object with the other tubes (labelled X ).

Maybe bonded contacts aren’t appropriate, but the other contacts. Since the X tubes are not initially touching, but can be a source of contact during deformation. Apply changes to Top and Top 30, too if it ends up reducing stresses.

More updated images 2021.10.01

Top

Very strange behaviour with a small spike in stress.

We could maybe fix it by adjusting the position of the horizontal or vertical angled tube.

More updated images 2021.10.01

Top 30 Wall

More updated images 2021.10.01

Combined Loading (Roll-Over) - Incomplete

It is the case with the pucks.

It needs to be setup using previous examples.

Advisor: Jason He

It is slightly lower priority because the combined loading condition could be interpreted as an average of multiple cases listed above.