Once the analysis has been successfully run, various reports and results may be viewed by going to the Results tab of the Analysis component and selecting the relevant buttons (Note: The stage of interest must be selected in the Stage drop-down list in order to get the results appropriate to that particular stage).
PipeLay also generates plots for the various parameters requested on the Summary Postprocessing tab. These plots illustrate the change in a particular parameter from one stage to the next. In the case of this example, some of the summary postprocessing plots are reproduced in the first four figures. Structure snapshots for each of the thirteen stages are also reproduced in the last figure.
The first figure shows the vertical elevation of the start-up head as a function of stage number. The elevation continuously decreases during the analysis as the head moves from the vessel to the seabed.
The second figure presents the tension at the anchor as a function of stage number. The tension remains within the specified range throughout.
The third figure plots the seabed reaction at the pipe end node as a function of stage number. The reaction is zero until the pipe end node comes into contact with the seabed in the final stage, at which point there is a slight increase.
The fourth figure shows the maximum bending stress in the entire pipeline as a function of stage number. The stress reaches a maximum as the start-up head begins to pass over the stinger (i.e. in stage 2). The maximum value remains constant from here as the profile of the pipe remains the same over the stinger for the remaining stages.
The last figure presents structure snapshots at the various stages, all superposed onto the same graph. This neatly summarises the overall start-up scenario at a glance.
Vertical Elevation of Start-up Head
Tension at Anchor
Seabed Reaction at Start-up Head
Maximum Bending Stress in Pipeline