[Diy_efi] Area under torque curve?

[Derek]

See reply at bottom.

--- Mike Diehl wrote:
> 
> > So let me try your question now -
> > X = torque = force x distance
> > Y = revs/time
> > Area under = force x distance x revs / time
> >            = force x distance / time (since revs are dimensionless)
> >            = "lb.ft. per sec" for instance
> >            = "rate of doing work"
> >            =  POWER - I think! - correct me if I'm wrong.
> 
> Ok, I was getting stuck with the revs.  You say they are
> dimensionless; they may be.  
> On the other hand, revs translates to distance which makes your 
> equation:
> 	= force x distance^2 / time
> 
> Of course this is meaningless, at least to me, and that is why I was
> stuck.  
> So now I have to understand how you were able to say that revs are 
> dimensionless.

Of course revs are dimensionless! 
What dimensions would you put on them - time? distance? force?

Or think of it this way - 
 - linear POWER = force x velocity
                = force x distance / time
 - rotational POWER = torque x revs (rotation speed)
                    = force x distance / time
   - SAME THING only if revs are dimensionless.

Quod est demonstrandum - if you're a mathematician
Re ipse loquitur - if you're a lawyer.
Math and logic have been more useful than Latin though!

Derek



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