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Catenary Curve

Catenary Curve

Catenary Curve

(OP)
I am trying to design Catenary curves in unigraphics. But am striking out in every path i try to follow. Can anyone help me out in this?

RE: Catenary Curve

Law curves.

RE: Catenary Curve

(OP)
I'm sorry but i dont follow what you mean

RE: Catenary Curve

(OP)
Can the values be edited through this?

RE: Catenary Curve

You can edit the values by editing the Expressions.

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
UG/NX Museum:   http://www.plmworld.org/p/cm/ld/fid=209

To an Engineer, the glass is twice as big as it needs to be.
 

RE: Catenary Curve

(OP)
I miss spoke in my last post. What i was trying to ask was if there was a way to make witdth of the arc different. Like changing the distance from 2" to 1"
 

RE: Catenary Curve

(OP)
7.5
 

RE: Catenary Curve

OK, in the new example attached, I've added an expression for 'Width' and modified the law curve expressions so that you will get what you're expecting.

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
UG/NX Museum:   http://www.plmworld.org/p/cm/ld/fid=209

To an Engineer, the glass is twice as big as it needs to be.
 

RE: Catenary Curve

(OP)
Is there a way create mutiple copies,chain them together like the way telephone lines hang? ( Also extrude them to actual solids? )

RE: Catenary Curve

(OP)
Sorry, I am trying to create flat planes of the arcs linked together. I'm just not sure how to use the files you gave me and play around  with it.
 

RE: Catenary Curve

(OP)
Yes it is, thank you, this is a big help to a newbie
 

RE: Catenary Curve

Is it possible to use this to incorporate into a lift sling model to get proper model? I've been multiple sketches and combined projections so far to create this. Also is there a list some where of different curve laws that can be applied?

RE: Catenary Curve

Quote ((swale74)):


Also is there a list some where of different curve laws that can be applied?

Yea gotta 'Rinehart Mathematical Tables, Formulas and Curves' handbook?

Any set of equations used to describe a 2D or 3D curve in space can be used in a Law Curve.

That being said, with NX 8.0 we're including a set of 'Law Curve' examples as part of the Reuse Library.  These consist of 'features' which can be 'dragged' into an existing part model (we include both Metric and Imperial examples) covering the curve types shown below:



Of course, the skies the limit once you master the technique for using the explicit Law Curve function yourself.  

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
http://www.siemens.com/plm
UG/NX Museum:   http://www.plmworld.org/p/cm/ld/fid=209

To an Engineer, the glass is twice as big as it needs to be.
 

RE: Catenary Curve

Thanks John the reuse curves is very nice to hear.  

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