Chassis Detailed Design
- Ron Tsang (Unlicensed)
This page tracks the design process and decisions of the chassis.
Constraints and Criteria
Constraints (what the chassis must do):
Support passengers
Structural integrity for various cases
Mounting for electronics
Mounting for suspension and steering
- Mounting for the aerobody base
- Mounting for panel hinges
Criteria:
- Weight, lighter is better
- Cost, more affordable is better
- Specific strength, stronger per unit weight is better
- Manufacturing feasibility, easier to fabricate and assemble is better
Case | Force | FEA Setup (Fixed Supports) | FEA Setup (Force Location) |
Front Bump | 2G | Rear mounts | Front mounts |
Rear Bump | 2G | Front mounts | Rear mounts |
Front + Rear Bump | 2G | Center of Gravity | Front and Rear Mounts |
Front Collision | 5G | Center of Gravity | Chassis front |
Rear Collision | 5G | Center of Gravity | Chassis rear |
Cornering | 3G | Roll Center | ??? |
Braking/ Acceleration | 3G | Center of Gravity | Moments at mounts |
Roll Over | 5G | Center of Gravity | Roll cage |
Version and Design Decisions
| Version + Date | Isometric view | Comments | What's Next |
|---|---|---|---|
| 1.0 |
| Basic layout and shape of members Design decision reasoning found on: | Proper sizing for aerobody and passengers Fix geometry for suspensions mount Triangulation of members |
