Applications Case: PTO Extension Feature for RM3

[Allison-File]

This is a new applications case within the WEC-Sim Applications folder that demonstrates the PTO Extension Feature being utilized for the RM3 model. The RM3 model is a special case due to its high DOF, causing the particular block orientation in the simulink model to dictate which body block will move in response to a defined PTO initial displacement. This special case requires extra setup on the users end if looking to define a different body’s motion than the one automatically established.

The RM3 PTO Extension Applications case includes the following components:

1. Float case

   • This is the default RM3 model setup in which the float body block is defined as the PTO mechanism and will be displaced
     upon defining the pto extension value in the wecSimInputFile.

   • This case includes an updated wecSimInputFile with the PTO extension feature incorporated as described in the attached
     README file.

2. Spar case

   • This case includes the necessary changes to the RM3.slx model to allow for the spar to be defined as the PTO mechanism
     and to be displaced in response to the defined PTO initial displacement.

   • The detailed steps are included in the README file to update the simulink model to make this change. The
     wecSimInputFile is also included with the defined PTO Extension feature.

3. Additional Files

   • Aside from the necessary geometry and hydroData files, the test file is also attached for each of the two cases.

PTO Extension Feature.pdf

[akeeste]

Thanks @Allison-File! I made a couple minor updates to the testing set-up and made this case use the common hydrodata.

The RM3_PTO_Extension test will pass once the PR into dev is merged.