# Questions tagged [traction]

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### Traction loads in cracks - clarification

I need small help with interpretation of traction loads. I cannot find any explanation what does it really mean according to fatigue crack growth. Should I interpret that like any loads applied to ...
22 views

### Can stress tensor be defined on feature edges?

Assume a rod is being extruded out of a cylinder by pushing the cylinder into a hole (See Figure below). Do the feature edges (or corners in 2D) cause the traction (the surface force) to be ...
• 141
1 vote
42 views

### On Which Side Will The Tyre Wear Out More?

Whilst watching a F1 race recently I noticed the commentators talk about how all the cars on that race day started observing more/faster wearing down of the tyres on the front left of the car relative ...
45 views

### What is the fastest possible slot car

What is the fastest possible slot car one can build? What are the limiting factors? Obviously, we have to require that the motor is aboard the car and that it's propelled by the wheels (we don't want ...
• 111
44 views

### What is the average energy loss due to rolling friction in contemporary motor vehicles?

Around what percent of energy provided by gasoline is lost as heat due to rolling friction in vehicles? Is this number higher for larger vehicles likes trucks than smaller vehicles like bikes? ...
• 105
37 views

### What is the minimum frictional force required for a vehicle to operate smoothly, retain traction, and prevent any skids?

I am not looking for a specific number of course. I know that it may perhaps vary with different vehicles. However, I'm trying to figure out how to theoretically calculate the minimum necessary ...
• 105
191 views

### Faster car drifting (motorsport) when using limited slip vs welded differential

I have been drifting RWD (rear wheel drive) cars for some years now. I tend to think about every engineering solution that other drivers use and how does it work before applying it to my car. What ...
1 vote
231 views

### Rotational and translation DoFs in structural mechanics

I'm a computational person, and I don't quite understand how rotational DoFs are manifested in the linear elasticity equations. I understand the translational DoFs are simply the displacement ...
• 113
135 views

### How to calculate the maximum starting traction force for a train with multiple carriages?

Suppose I have a convoy composed of the following elements: A locomotive with 4 driven wheelsets (2 wheels per wheelset and therefore 8 wheels). $n$ carriages with 2 wheelsets each. Assuming the ...
• 131
266 views

### Should I discard part of the data (steel traction test)

(please excuse my bad English. I don't speak English) I have to deal with an old hydraulic machine, recovered from a deposit. I have no knowledge on mechanical engineering. Only civil engineering. ...
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