Help on Torsional stiffness of a non-rotational wire rope

[baz123]

I am trying to find out how to calculate the torsional stiffness of a wire rope. Ultimately I am wanting to determine the torque required to rotate the wire rope.

 

[GregLocock]

I'd be a bit amazed if a wire rope manufacturer couldn't tell you, or a crane or winch manufacturer.

From first principles it is a rather tricky problem.

So, are you trying to analyse it or just get an answer?




Cheers

Greg Locock

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

 

[kelowna]

I am with Greg there. The best source is going to be the manufacturer. Besides, the term 'non-rotational wire rope' is very lax, diameter? number of strands? steel core? galvanized? my guess is that depending on the rope configuration you might have very different behaviours, and even on the same rope configuration, there might be variations between manufacturers.

 

[unclesyd]

As stated above it varies depending on the category. If your supplier cant or want supply this information I would buy from someone like Bridon.

I think the information your require is here at the Bridon web site.

http://www.bridon.com/live/us/