Nonlinear hydro with irregular waves not working about wec-sim HOT 4 CLOSED

Caused by:
Error using wecSim (line 157)
Errors occurred during parsing of MATLAB function 'Rigid Body/Wave Diffraction and Excitation Force
Calculation/Nonlinear FK Force Variant Subsystem/With Nonlinear FroudeKrylov Force/Diffarction and Excitation
Forces'
Hi,
I believe this is the same error.

Error using wecSim (line 157)
Error occurred in 'ah_hsp_control3/Rigid Body/Wave Diffraction and Excitation Force Calculation/Nonlinear FK
Force Variant Subsystem/With Nonlinear FroudeKrylov Force/Diffarction and Excitation Forces'.

nlhydro set to 2
also mass is user defined, not "equilibrium" (not sure if this has much to do with it)

Thanks!

Alex

from wec-sim.

Hi Alex

Please note that the nonlinear feature does not work for "user-defined" irregular wave cases and you will need a correct stl file for the body. Can you upload your "wecsimInput.m" file so that we can try to duplicate what happened?

Thanks,

Yi-Hsiang Yu, Ph.D.
Senior Research Engineer | Water Power Program
National Renewable Energy Laboratory (NREL)
[email protected]:[email protected] | Phone: (303) 3847143

From: Matthew Sharman <[email protected]mailto:[email protected]>
Reply-To: WEC-Sim/WEC-Sim <[email protected]mailto:[email protected]>
Date: Monday, September 28, 2015 at 9:25 PM
To: WEC-Sim/WEC-Sim <[email protected]mailto:[email protected]>
Subject: Re: [WEC-Sim] Nonlinear hydro with irregular waves not working (#34)

Caused by:
Error using wecSim (line 157)
Errors occurred during parsing of MATLAB function 'Rigid Body/Wave Diffraction and Excitation Force
Calculation/Nonlinear FK Force Variant Subsystem/With Nonlinear FroudeKrylov Force/Diffarction and Excitation
Forces'
Hi,
I believe this is the same error.

Error using wecSim (line 157)
Error occurred in 'ah_hsp_control3/Rigid Body/Wave Diffraction and Excitation Force Calculation/Nonlinear FK
Force Variant Subsystem/With Nonlinear FroudeKrylov Force/Diffarction and Excitation Forces'.

nlhydro set to 2
also mass is user defined, not "equilibrium" (not sure if this has much to do with it)

Thanks!

Alex

Reply to this email directly or view it on GitHubhttps://github.com//issues/34#issuecomment-143932870.

from wec-sim.

Not working for irregular waves.

Lines 110-140 in the non-linear FK matlab block in the library. Should probably loop through all the wave numbers (k), and not use the first wave (k(1)).

from wec-sim.

Fixed and pushed

from wec-sim.