Clearance & Interference Postprocessing |
 
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Clearance & Interference Postprocessing |
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Flexcom possesses an ancillary module, Clear, which is a clearance/interference postprocessor. It produces tabular and graphical output regarding the interference or clearance between adjacent structures, from the results of Flexcom analyses of the structures under consideration. Typical applications would include the prediction of interference occurring between flexible risers and vessel mooring lines on a floating production system, or between rigid drilling and production risers on a TLP.
The use of Clear can be briefly summarised as follows. As a first step, you create Flexcom models of the structures under consideration. These models can be combined in a single Flexcom input file, or you can analyse the structures separately, in a series of Flexcom runs, but with the structures located in their actual positions relative to one another.
Once the Flexcom analysis or analyses are completed, you then run Clear. The major input parameters are (i) the regions on both structures over which interference is thought likely to occur, (ii) the required output format (you can request snapshot, timetrace or statistics output), and (iii) miscellaneous parameters and titles (most of which are optional). Clear performs its calculations, as described in the next section, and creates two output files. These are (i) a tabular output file summarising the analysis results, and (ii) a plot file that can subsequently be viewed or printed using the plotting facility.
Further information on this topic is contained in the following sections:
•Numerous keywords are contained in the $CLEAR section, which allows you to perform clearance/interference postprocessing calculations.
If you would like to see an example of how these keywords are used in practice, refer to G02 - Jumper Wake Interference.