Wärtsilä OPTI-DP Engagement Tool

The new tool takes all details of thruster performance into account and utilises detailed computational fluid dynamics (CFD) to deliver accurate results. The tool implements actual 8-degree tilted azimuth thruster performance over a 360-degree circumference in the thrust allocation logic (TAL). It also allows an unlimited number of forbidden zones to avoid unwanted thruster to thruster interaction and minimise the negative impact of thruster interaction with other structural areas such as jackup legs. With the OPTI-DP Engagement Tool we can simplify power consumption per thruster based on the specific vessel single line diagram (SLD). Performance evaluation for different failure modes is part of the standard vessel DP capability evaluation, and results are presented in thrust-utilisation polar plots for given environmental conditions or maximum acceptable windspeed plots. In a nutshell, this innovative tool allows an owner or designer to see thruster solutions in the early design phase to allow changes to be made to achieve the best outcome. With the OPTI-DP Engagement Tool, we can communicate vessel DP performance in clear polar plots and diagrams that make it simple to compare, evaluate and make decisions.