External Diameter |
 
|
External Diameter |
|
Obviously Clear takes into account the diameter of the two structures when calculating the distance between them at any pair of points. You may optionally specify an effective External Diameter for the elements of each element set for use in these calculations. If you do not input a value for an element set, Clear uses for each individual element the effective external diameter for the element stored in the Flexcom database. This will be either the drag diameter if geometric properties were specified in the Flexible Riser format, or the external diameter if the Rigid Riser format was used. If, however, you specified a diameter to be used in Stress Computations for timetrace output, this will be used as the effective external diameter. Put simply, the diameter which Clear uses is the diameter the main Flexcom analysis module would use if you requested timetrace output of bending, hoop or von Mises stresses.
•*ELEMENT SETS ($CLEAR) is used to specify data relating to the element sets on both structures between which Clear is to perform clearance calculations, including external diameter.
•*GEOMETRIC SETS ($MODEL) is used to assign geometric properties to element sets, including external diameter.
•*PROPERTIES ($MODEL) is used to assign effective structural properties to element sets for use in calculating stresses, including external diameter.