Recent content by rob4586

Thanks Buddy, PM inbound :) Rob

All, I am trying to get my head round a rotary phase converter. Obviously a third voltage is induced in L3 of the motor if L2 to and L1 are connected to the single phase. However, how are L1 and L2 placed out of phase from each other or don't they have to be? Hope that makes sense...

Attached the file of the workings, it almost was magic :p

Sorted it, can be done with Pythagoras!

I've considered similar triangles but as previously mentioned there isn't the correct info there I don't think.

You've obviously got its height of 3 at a depth 1.5 from the y axis. So would you have to use the equation of the circle and then differentiate it?

I'd of thought that there isn't enough information there to give an answer! A height would have to be known? :s

From another forum Can you work this one out? http://i44.tinypic.com/2hxu71s.jpg It's supposed to be a ladder resting on a barrel. We've guessed the answer will be 12ft, and proven it with CAD! What the maths behind it?

It still has a reasonable modules of rigidity and isn't all too far from steel. It's often used where a stronger material is required than aluminium yet steel isn't required. Hope that helps, Rob

I wouldn't of thought it would be ductile iron. I suppose it could be with it's mechanical properties, although it's typical a pain to machine. Would be interesting to hear a definitive answer. Rob