Ref Vector X, Y, Z - CAESAR II - Help

CAESAR II Users Guide (2019 Service Pack 1)

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English
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CAESAR II
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CAESAR II Version
11.0 (2019)

Specifies the three components or direction cosines of the reference vector. The reference vector is used with the current element orientation to define the local coordinate system ABC for this equipment check. See Axis B, in the Forces - Moments fields. The vector must be perpendicular to the current pipe element. This vector need not be unity.

Examples:

  • ( 0, 1, 0 ) - the reference vector is in the global "Y" direction

  • ( 1, 0, 0 ) - the reference vector is in the global "X" direction

  • ( 0.7071, 0, 0.7071 ) - the reference vector is skewed 45 degrees in the global X-Z plane.

For the Equipment Limits Check, the angle between the pipe element and the equipment reference vector should be 90. If you are trying to model an API-610 end nozzle on a horizontal pump, set the reference vector to the CAESAR II global vertical axis.