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I'm trying to create a block or anything else in soildworks that I can move and see the compression of the lower wire further from the arm

Something like this

exemple

The example show just one joint but I want it for a long array of joints But I have no idea how to go about it

Can you give me a direction on how to do it?

Simon
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2 Answers2

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The key point, is you need a flexible curve with a fixed length.

The simplest way to do this is with a style spline - you can add a dimension to the spline to define the length.

You can also then define the first and last construction lines to be perpendicular to the two sides of the joint, set opposing pairs of construction lines to be equal length, and set the length of the first, last, and centre points to control the minimum bend radius.

I have uploaded a .gif below showing how I set this up, I hope it's clear.

dynamic cable spline

Jonathan R Swift
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In answer to the addition question in the comments -

In the case you are describing, the cable should be anchored parallel to the beam. The length of the wire required to limit motion is self-evident from being a straight line - although you should ensure that you have compensated for stretch in the wire, and flex of its mounting under the forces involved.

Then, it's the same method to create a flexible cable that you can use to approximate a possible bent state

dynamic cable spline

Of course, you can get more complicated with it by adding additional construction lines to the style spline:

Which best represents the behaviour of your specific cable is something you will have to test experimentally, really.

dynamic cable spline

Jonathan R Swift
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