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Force exerted by a spring arround a tube

Question asked by Carlos Garcia on May 23, 2013
Latest reply on May 24, 2013 by Jared Conway

I would like to calculate the force that a extension spring makes to a tube when is wrapped on it. Imagine a circular tube where you wrap a extension spring so it remains tensed up, pressing the tube surface like a clamp.

So I would like to calculate the force (knowing the K of the spring) that the spring makes on the tube walls.

Actually the tube is not circular but has a obround (two flats joined by semicircles) secction, so in the "flat" zones of the obround the spring does not make any clampling (radial) force. So I would like to study different tube sections in order to optimize it.

 

Could someone help me to simulate this?

 

Thanks in advance!

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