Designing Lightweight Wheels for a 200 kg Car Chassis

Click For Summary

Discussion Overview

The discussion focuses on the design of lightweight wheels for a single-passenger racing car chassis weighing approximately 200 kg. Participants explore various aspects of wheel design, including strength, rigidity, aerodynamics, and manufacturing processes.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested
  • Experimental/applied

Main Points Raised

  • One participant emphasizes the importance of rigidity in wheel design, noting that wheels should not flex radially or laterally.
  • Another suggests starting with existing market wheels and defining specific requirements such as weight and load capacity.
  • A participant raises concerns about aerodynamics, indicating that the design of the wheels can significantly affect drag, especially for electric cars.
  • Questions are posed regarding the type of car (passenger, drag racing, off-road) and the expected loads during operation, including acceleration and maximum speed.
  • The original poster clarifies that the design is for a single-passenger car intended for a racing track, with low speeds and minimal suspension.
  • Manufacturing capabilities are discussed, with a focus on using aluminum to keep the wheels lightweight, and potential processes mentioned include sand casting and forging.

Areas of Agreement / Disagreement

Participants express varying concerns and considerations regarding wheel design, but there is no consensus on specific design parameters or approaches. Multiple competing views remain on aspects such as rigidity, aerodynamics, and manufacturing techniques.

Contextual Notes

Limitations include the need for clearer definitions of design requirements and the specific performance characteristics expected from the wheels. The discussion does not resolve the various technical challenges associated with the design process.

Who May Find This Useful

Individuals interested in automotive engineering, particularly in lightweight design and manufacturing processes for racing vehicles, may find this discussion relevant.

grey
Messages
69
Reaction score
0
Now, i am looking for something to get me started with designing wheels for a car. What i want is to make light-weight wheels strong enough to hold around about 200 kg weight. (4-wheels).

To give you an idea of what i am looking for, in designing a chassis, we want the frame to be able to hold the required loads, and be rigid (both from bending and torsion). What do we want in wheels?

Thanks!
 
Engineering news on Phys.org
This might be too obvious, but my first concern is rigidity. You don't want it to flex either radially or laterally.
 
Start by looking at wheels that are on the market. Next, you should define some proper requirements like weight, load capacity, etc. When you say wheels do you mean like for a car, or for some sort of rolling cart?
 
wheels can greatly effect the aerodynamics. the pretty-est are sometimes the most drag if drag reduction is important, (electric car) then that should be a priorityt

dr
 
What kind of car? (Passenger car, drag racing, off-road, etc?)
Expected loads? (Acceleration, braking, cornering, GVWR, maximum speed?)
Is this just a design exercise or do you plan to actually manufacture the wheels? What manufacturing processes can you support?
... Shall I continue?
 
hi,

its supposed to be for a single-passenger car...to run on a racing track (so no off-road stuff)
weight of vehicle around 200 kg (including driver)

low speeds...max we are looking for is around 36-43 kph
even acceleration is going to be slow...0-36 in 10 secs
the corners have large radii...so much so that we might not even have any sort of suspension

yes, manufacture is definitely on
what facilities we have available...(sand)casting, maybe even forging...but to keep the whole thing light weight, i had aluminum in mind
 

Similar threads

Replies
9
Views
2K
Replies
1
Views
2K
  • · Replies 11 ·
Replies
11
Views
4K
  • · Replies 24 ·
Replies
24
Views
4K
Replies
13
Views
4K
  • · Replies 35 ·
2
Replies
35
Views
10K
  • · Replies 8 ·
Replies
8
Views
7K
  • · Replies 5 ·
Replies
5
Views
4K
Replies
11
Views
2K