<< Click to Display Table of Contents >> Navigation:  Flexcom > Examples > A - Top Tensioned Risers > A05 - Marine Riser with Landing String >
Analyses

Separate Parameters are used to define to the number of landing string joints present within the marine riser and the horizontal vessel offset. The initial model has 4 landing string joints included, corresponding to 56m of landing string. It is gradually lowered into the marine riser, by incrementally adding 4 new joints each time, until finally there are 32 joints present, corresponding to 448m of landing string. Lateral vessel offsets of up to 12m are considered, in increasing increments of 2m from the mean vessel position on station. Keyword Based Variations are used to define all the required parameters, as this facility is ideally suited to parameters which vary in fixed increments. The combinations input is used to control the names and locations of generated keyword files. In this case, a separate folder is established for every landing string deployment stage, and individual file names within each folder reflect the various vessel offset cases considered.

The overall file and folder structure is shown below (only the first folder is shown in expanded form).