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
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
^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
Front 60 Wall - Passes now
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.
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.
Top 30 Wall
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.