From dee04c267ba9ad844ff75213407e91c4700c842b Mon Sep 17 00:00:00 2001 From: pibo Date: Fri, 16 Feb 2024 09:50:52 -0700 Subject: [PATCH] tweak damping again --- .../IEA-22-280-RWT_ElastoDyn_tower.dat | 8 ++++---- .../IEA-22-280-RWT-Monopile/IEA-22-280-RWT_SubDyn.dat | 2 +- .../IEA-22-280-RWT-Semi_ElastoDyn_tower.dat | 8 ++++---- 3 files changed, 9 insertions(+), 9 deletions(-) diff --git a/OpenFAST/IEA-22-280-RWT-Monopile/IEA-22-280-RWT_ElastoDyn_tower.dat b/OpenFAST/IEA-22-280-RWT-Monopile/IEA-22-280-RWT_ElastoDyn_tower.dat index 2394f97..f01dd6a 100644 --- a/OpenFAST/IEA-22-280-RWT-Monopile/IEA-22-280-RWT_ElastoDyn_tower.dat +++ b/OpenFAST/IEA-22-280-RWT-Monopile/IEA-22-280-RWT_ElastoDyn_tower.dat @@ -2,10 +2,10 @@ Generated with AeroElasticSE FAST driver ---------------------- TOWER PARAMETERS ---------------------------------------- 30 NTwInpSt - Number of input stations to specify tower geometry -0.5 TwrFADmp(1) - Tower 1st fore-aft mode structural damping ratio (%) -0.5 TwrFADmp(2) - Tower 2nd fore-aft mode structural damping ratio (%) -0.5 TwrSSDmp(1) - Tower 1st side-to-side mode structural damping ratio (%) -0.5 TwrSSDmp(2) - Tower 2nd side-to-side mode structural damping ratio (%) +0.33 TwrFADmp(1) - Tower 1st fore-aft mode structural damping ratio (%) +1.30 TwrFADmp(2) - Tower 2nd fore-aft mode structural damping ratio (%) +0.33 TwrSSDmp(1) - Tower 1st side-to-side mode structural damping ratio (%) +1.70 TwrSSDmp(2) - Tower 2nd side-to-side mode structural damping ratio (%) ---------------------- TOWER ADJUSTMUNT FACTORS -------------------------------- 1.0 FAStTunr(1) - Tower fore-aft modal stiffness tuner, 1st mode (-) 1.0 FAStTunr(2) - Tower fore-aft modal stiffness tuner, 2nd mode (-) diff --git a/OpenFAST/IEA-22-280-RWT-Monopile/IEA-22-280-RWT_SubDyn.dat b/OpenFAST/IEA-22-280-RWT-Monopile/IEA-22-280-RWT_SubDyn.dat index 3193e84..de4bde9 100644 --- a/OpenFAST/IEA-22-280-RWT-Monopile/IEA-22-280-RWT_SubDyn.dat +++ b/OpenFAST/IEA-22-280-RWT-Monopile/IEA-22-280-RWT_SubDyn.dat @@ -13,7 +13,7 @@ True CBMod - [T/F] If True perform C-B reduction, else f 0 Nmodes - Number of internal modes to retain (ignored if CBMod=False). If Nmodes=0 --> Guyan Reduction. 1. JDampings - Damping Ratios for each retained mode (% of critical) If Nmodes>0, list Nmodes structural damping ratios for each retained mode (% of critical), or a single damping ratio to be applied to all retained modes. (last entered value will be used for all remaining modes). 1 GuyanDampMod - Guyan damping {0=none, 1=Rayleigh Damping, 2=user specified 6x6 matrix}. -0.0 0.00072 RayleighDamp - Mass and stiffness proportional damping coefficients (Rayleigh Damping) [only if GuyanDampMod=1]. +0.0 0.00183 RayleighDamp - Mass and stiffness proportional damping coefficients (Rayleigh Damping) [only if GuyanDampMod=1]. 6 GuyanDampSize - Guyan damping matrix (6x6) [only if GuyanDampMod=2]. 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 diff --git a/OpenFAST/IEA-22-280-RWT-Semi/IEA-22-280-RWT-Semi_ElastoDyn_tower.dat b/OpenFAST/IEA-22-280-RWT-Semi/IEA-22-280-RWT-Semi_ElastoDyn_tower.dat index aec0e34..b120a95 100644 --- a/OpenFAST/IEA-22-280-RWT-Semi/IEA-22-280-RWT-Semi_ElastoDyn_tower.dat +++ b/OpenFAST/IEA-22-280-RWT-Semi/IEA-22-280-RWT-Semi_ElastoDyn_tower.dat @@ -2,10 +2,10 @@ Generated with AeroElasticSE FAST driver ---------------------- TOWER PARAMETERS ---------------------------------------- 30 NTwInpSt - Number of input stations to specify tower geometry -0.5 TwrFADmp(1) - Tower 1st fore-aft mode structural damping ratio (%) -0.5 TwrFADmp(2) - Tower 2nd fore-aft mode structural damping ratio (%) -0.5 TwrSSDmp(1) - Tower 1st side-to-side mode structural damping ratio (%) -0.5 TwrSSDmp(2) - Tower 2nd side-to-side mode structural damping ratio (%) +0.33 TwrFADmp(1) - Tower 1st fore-aft mode structural damping ratio (%) +1.30 TwrFADmp(2) - Tower 2nd fore-aft mode structural damping ratio (%) +0.33 TwrSSDmp(1) - Tower 1st side-to-side mode structural damping ratio (%) +1.70 TwrSSDmp(2) - Tower 2nd side-to-side mode structural damping ratio (%) ---------------------- TOWER ADJUSTMUNT FACTORS -------------------------------- 1.0 FAStTunr(1) - Tower fore-aft modal stiffness tuner, 1st mode (-) 1.0 FAStTunr(2) - Tower fore-aft modal stiffness tuner, 2nd mode (-)