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Material point

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gregorsky

gregorsky

Mechanical
Joined
Aug 25, 2005
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Hello,

I've just defined a CSYS type=Cylindrical, to apply a cylindrical spring properties to it.
I'm receiving the error message :"a material point in element xx lies on the polar axis. The orientation cannot be defined.Use the option orientation,System=rectangular or move the polar axis away from the material point".

The nodes of this spring point directly to the center of this cylindrical coord, and I don't seem to understand the problem with orientation definition. For other spring in different locations, there is no problem.

Also, it is assembly and it refers to elm in assembly - how to find this element then if nodes and element numbers in input file refer to parts...


Can someone help?

Thanks
 
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It's saying that you have node(s) lying on the polar axis or in other words with a radius of zero, at such a position it is impossible to determine a radial or tangential direction for the spring element.
 
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ok but on other three similar places everything is ok so why just one corner cause problems - how to solve it as I want coord to lie on center line of spring
 
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