Basic Question

[suspguy]

Hi

I have a basic question

I was trying to calculate the torque axis at the rear suspension for an AWD, the way I understand it is the resultant of the driveshaft torque axis and the halfshaft torque axis , now if I consider them as 2 3D vectors having different origins , and I want to calculate the resultant torque axis , how can I do that

I mean I am trying to understand the math behind it

Thanks for your help

 

[GregLocock]

How do you normally add vectors?


Additional very big clue, it doesn't matter where on a rigid body you apply a pure torque.



Cheers

Greg Locock

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.

 

[carnage1]

It doesn't matter where on a rigid body you apply a pure torque?
I know enough to know you give good info, and I don't understand this. Intuitivly it seems like it should matter where your force is as it changes the distance the force is acting over making it a different length lever arm, Or are all forces on a rigid body acting on the center of force for that body?

 

[GregLocock]

Yes, the point of application of a torque to a rigid body makes no difference to the resulting acceleration, or force balance.

It is an odd result intuitively, largely because in the real world we usually apply a pair of forces to get a torque, rather than a pure torque.



Cheers

Greg Locock

Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.