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#63103 - 05/26/15 08:33 AM Inputting Nozzle Flexibilities
Goodsalt Offline
Member

Registered: 09/11/07
Posts: 126
Loc: PA, USA
For a nozzle entering a vessel at an orientation other than along one of the primary axes, is there a way to input all stiffnesses directly? By which I mean without resolving many of them to the primary axes? I have a CNODE at the point of intersection between the nozzle and the vessel shell. The centerline of the nozzle is in the Y-Z plane and is 45 degrees from the Y axis (up/down) and 45 degrees from the Z axis (east-west). The cl of the vessel is along the X axis (north-south). I want to define the following stiffnesses received from a vendor who ran a Nozzle Pro calc for the nozzle - axial translational, in plane rotational, out plane rotational, torsional rotational. I can identify a LIM stiffness that defines the "axial" stiffness along the nozzle centerline. I see no way to do the others w/o resolving the numbers.

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#63106 - 05/26/15 09:42 AM Re: Inputting Nozzle Flexibilities [Re: Goodsalt]
Dave Diehl Offline
Member

Registered: 12/14/99
Posts: 2382
Loc: Houston, TX, USA
You can define stiffness along any vector by adding the vector in parentheses following the X, Y, or Z "placeholder" when defining the restraint "Type".
For example, X(1,0,1) or Y(1,0,1) or Z(1,0,1) would define stiffness along a 45 degree line in the horizontal plane. (The "Type" of X(1,0,-1) is perpendicular to this example.)
_________________________
Dave Diehl

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#63107 - 05/26/15 12:29 PM Re: Inputting Nozzle Flexibilities [Re: Goodsalt]
Goodsalt Offline
Member

Registered: 09/11/07
Posts: 126
Loc: PA, USA
Thanks Dave!

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