What are the key considerations for designing truck wheel studs?

AI Thread Summary
Key considerations for designing truck wheel studs include understanding the forces acting on the studs, which can be complex due to factors like the vehicle's weight distribution, tire diameter, and track width. A free body diagram is essential for visualizing these forces, including mean and alternating loads. The maximum all-up mass of 4200 kg and the specified parameters, such as a nominal PCD of 400 mm and a track width of 2200 mm, are critical for accurate calculations. It's also important to select the appropriate rim type, as load distribution varies with design. Resources such as textbooks and engineering websites can provide valuable insights into calculating these forces and ensuring the studs meet the desired lifespan of 20 years.
rishflab
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I need to design studs for a front truck wheel inlcuding the pattern, position, type of stud etc. I am having trouble developing a free body diagram of the wheel studs and finding all the forces on the wheel studs.

I know the following info:

Max all up mass loaded 4200 kg (~70% max on front wheel)
Outside diameter of tyre (Dw) 1100 mm
Nominal PCD of bolt pattern 400 mm
Track width 2200 mm
Height of CoG loaded 1500mm
Max lateral acceleration µg, or rolling over first (u= ~0.9)
Desired Life 20yrs

Does anyone know any textbooks or websites or something which can help me find the forces (mean and alternating) I will be dealing with?
 
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You also need to decide what type of rim you are using. For some, all the loads go thru the bolted connection, but not for other designs.
 

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