Design Car Chassis: Forces & Positioning

In summary, this person is looking for help with race car suspension class. They mention that proper torque is important to avoid loose nuts behind the steering wheel.
  • #1
waqaskhan200
6
0
Hi,
Well i have a project of designig a car chassis ad i really needed help on the different forces that act on the chassis during operation and their position on the chassis.
If anybody could help me please.
 
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  • #2
It would be helpful if you can elaborate upon what sort of application is involved.
 
  • #3
Forces acting on the chassis would simple be forces from the suspension and shock absorber points and forces translated through the the axles. To figure out what those are depends on the application and configure of the components. Chassis design depends completely on suspension design and drive train components and configuration.
 
Last edited:
  • #4
And, I would imagine, also the aerodynamic forces. :wink:
 
  • #5
Also some rather large transient loads, if you crash the car :smile:
 
  • #6
Torsion from the road surface, torque from drivetrain and brakes, weight of supported components, reactions at suspension and steering mounts, inertial forces...

... use your imagination.
 
  • #7
to start with just look after your specification for vehicle and decide the points of load application for suspension and body anolg with the axles.
once you are through with it go for stage wise calculation
A. static
which involvs just weight of the various loaded components and parts
B. dynamic
which involves forces due to road bumps through shock absorbers , engine torque actin as inertial forces, aerodynamic forces by air density and area of car encountered by it. but remember take into account forces in lateral, longitudnal as well as transverse direction
 
  • #8
see old post Jul22-09, 11:03 AM

Race car suspension Class
 
  • #9
proper torque is very important to ensure no loose nut behind the steering wheel

dr
 
  • #10
Hopefully the OP finished his project since it was started 2 1/2 years ago and he never replied since then.
 
  • #11
Ranger Mike said:
see old post Jul22-09, 11:03 AM

Race car suspension Class

lol. if that's old this is ancient.:rofl:
 
  • #12
may be this is helpfull for those who are looking for the same answers...
 

1. What is the purpose of designing a car chassis?

The car chassis is the structural framework of a car, providing strength and support for all other components. It is designed to withstand the forces and stresses that occur during driving, ensuring stability and safety.

2. How are forces considered in the design of a car chassis?

Forces such as weight, acceleration, braking, and cornering are all taken into account during the design process. The chassis must be able to distribute and withstand these forces to maintain stability and control.

3. What is the role of positioning in car chassis design?

The positioning of the car's components, such as the engine, transmission, and suspension, is crucial in creating a well-balanced chassis. The placement of these components affects the car's weight distribution, handling, and overall performance.

4. What materials are commonly used in car chassis design?

The most commonly used materials for car chassis are high-strength steel, aluminum, and carbon fiber. Each material has its own strengths and weaknesses, and the choice depends on factors such as cost, weight, and performance requirements.

5. How does computer-aided design (CAD) play a role in car chassis design?

CAD software allows engineers to create and test virtual prototypes of car chassis designs. This enables them to analyze the chassis's performance under different conditions and make necessary adjustments before physically building it, saving time and resources in the design process.

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