Dear Dr. Jonkman,

I encounter a strange problem. I am running Test13 and want to output the local force and moments at 50% tower height and blade span. and the output file has showed that these local output are invalid showed below:

I guess there is something wrong with the NTwGages and NBlGages in ElastoDyn input file. But I still cannot figure it out as I think my settings seems to be all right.I have attached my ElastoDyn input file for your reference. Sorry I dont know how to upload the txt file.

------- ELASTODYN v1.03.* INPUT FILE -------------------------------------------

FAST certification Test #13: WindPACT 1.5 MW Baseline with many DOFs with VS and VP and FF turbulence. Model properties from “InputData1.5A08V07adm.xls” (from C. Hansen) with bugs removed.

---------------------- SIMULATION CONTROL --------------------------------------

False Echo - Echo input data to “.ech” (flag)

3 Method - Integration method: {1: RK4, 2: AB4, or 3: ABM4} (-)

0.005 DT - Integration time step (s)

---------------------- ENVIRONMENTAL CONDITION ---------------------------------

9.80665 Gravity - Gravitational acceleration (m/s^2)

---------------------- DEGREES OF FREEDOM --------------------------------------

True FlapDOF1 - First flapwise blade mode DOF (flag)

True FlapDOF2 - Second flapwise blade mode DOF (flag)

True EdgeDOF - First edgewise blade mode DOF (flag)

False TeetDOF - Rotor-teeter DOF (flag) [unused for 3 blades]

True DrTrDOF - Drivetrain rotational-flexibility DOF (flag)

True GenDOF - Generator DOF (flag)

False YawDOF - Yaw DOF (flag)

True TwFADOF1 - First fore-aft tower bending-mode DOF (flag)

True TwFADOF2 - Second fore-aft tower bending-mode DOF (flag)

True TwSSDOF1 - First side-to-side tower bending-mode DOF (flag)

True TwSSDOF2 - Second side-to-side tower bending-mode DOF (flag)

False PtfmSgDOF - Platform horizontal surge translation DOF (flag)

False PtfmSwDOF - Platform horizontal sway translation DOF (flag)

False PtfmHvDOF - Platform vertical heave translation DOF (flag)

False PtfmRDOF - Platform roll tilt rotation DOF (flag)

False PtfmPDOF - Platform pitch tilt rotation DOF (flag)

False PtfmYDOF - Platform yaw rotation DOF (flag)

---------------------- INITIAL CONDITIONS --------------------------------------

0 OoPDefl - Initial out-of-plane blade-tip displacement (meters)

0 IPDefl - Initial in-plane blade-tip deflection (meters)

7.5 BlPitch(1) - Blade 1 initial pitch (degrees)

7.5 BlPitch(2) - Blade 2 initial pitch (degrees)

7.5 BlPitch(3) - Blade 3 initial pitch (degrees) [unused for 2 blades]

0 TeetDefl - Initial or fixed teeter angle (degrees) [unused for 3 blades]

0 Azimuth - Initial azimuth angle for blade 1 (degrees)

20 RotSpeed - Initial or fixed rotor speed (rpm)

0 NacYaw - Initial or fixed nacelle-yaw angle (degrees)

0 TTDspFA - Initial fore-aft tower-top displacement (meters)

0 TTDspSS - Initial side-to-side tower-top displacement (meters)

0 PtfmSurge - Initial or fixed horizontal surge translational displacement of platform (meters)

0 PtfmSway - Initial or fixed horizontal sway translational displacement of platform (meters)

0 PtfmHeave - Initial or fixed vertical heave translational displacement of platform (meters)

0 PtfmRoll - Initial or fixed roll tilt rotational displacement of platform (degrees)

0 PtfmPitch - Initial or fixed pitch tilt rotational displacement of platform (degrees)

0 PtfmYaw - Initial or fixed yaw rotational displacement of platform (degrees)

---------------------- TURBINE CONFIGURATION -----------------------------------

3 NumBl - Number of blades (-)

35 TipRad - The distance from the rotor apex to the blade tip (meters)

1.75 HubRad - The distance from the rotor apex to the blade root (meters)

0 PreCone(1) - Blade 1 cone angle (degrees)

0 PreCone(2) - Blade 2 cone angle (degrees)

0 PreCone(3) - Blade 3 cone angle (degrees) [unused for 2 blades]

0 HubCM - Distance from rotor apex to hub mass [positive downwind] (meters)

0 UndSling - Undersling length [distance from teeter pin to the rotor apex] (meters) [unused for 3 blades]

0 Delta3 - Delta-3 angle for teetering rotors (degrees) [unused for 3 blades]

0 AzimB1Up - Azimuth value to use for I/O when blade 1 points up (degrees)

-3.3 OverHang - Distance from yaw axis to rotor apex [3 blades] or teeter pin [2 blades] (meters)

0.99 ShftGagL - Distance from rotor apex [3 blades] or teeter pin [2 blades] to shaft strain gages [positive for upwind rotors] (meters)

-5 ShftTilt - Rotor shaft tilt angle (degrees)

-0.1449 NacCMxn - Downwind distance from the tower-top to the nacelle CM (meters)

0 NacCMyn - Lateral distance from the tower-top to the nacelle CM (meters)

1.389 NacCMzn - Vertical distance from the tower-top to the nacelle CM (meters)

0 NcIMUxn - Downwind distance from the tower-top to the nacelle IMU (meters)

0 NcIMUyn - Lateral distance from the tower-top to the nacelle IMU (meters)

0 NcIMUzn - Vertical distance from the tower-top to the nacelle IMU (meters)

1.61 Twr2Shft - Vertical distance from the tower-top to the rotor shaft (meters)

82.39 TowerHt - Height of tower above ground level [onshore] or MSL [offshore] (meters)

0 TowerBsHt - Height of tower base above ground level [onshore] or MSL [offshore] (meters)

0 PtfmCMxt - Downwind distance from the ground level [onshore] or MSL [offshore] to the platform CM (meters)

0 PtfmCMyt - Lateral distance from the ground level [onshore] or MSL [offshore] to the platform CM (meters)

-0 PtfmCMzt - Vertical distance from the ground level [onshore] or MSL [offshore] to the platform CM (meters)

-0 PtfmRefzt - Vertical distance from the ground level [onshore] or MSL [offshore] to the platform reference point (meters)

---------------------- MASS AND INERTIA ----------------------------------------

0 TipMass(1) - Tip-brake mass, blade 1 (kg)

0 TipMass(2) - Tip-brake mass, blade 2 (kg)

0 TipMass(3) - Tip-brake mass, blade 3 (kg) [unused for 2 blades]

15148 HubMass - Hub mass (kg)

34600 HubIner - Hub inertia about rotor axis [3 blades] or teeter axis [2 blades] (kg m^2)

53.036 GenIner - Generator inertia about HSS (kg m^2)

51170 NacMass - Nacelle mass (kg)

49130 NacYIner - Nacelle inertia about yaw axis (kg m^2)

0 YawBrMass - Yaw bearing mass (kg)

0 PtfmMass - Platform mass (kg)

0 PtfmRIner - Platform inertia for roll tilt rotation about the platform CM (kg m^2)

0 PtfmPIner - Platform inertia for pitch tilt rotation about the platform CM (kg m^2)

0 PtfmYIner - Platform inertia for yaw rotation about the platform CM (kg m^2)

---------------------- BLADE ---------------------------------------------------

15 BldNodes - Number of blade nodes (per blade) used for analysis (-)

“Baseline_Blade.dat” BldFile(1) - Name of file containing properties for blade 1 (quoted string)

“Baseline_Blade.dat” BldFile(2) - Name of file containing properties for blade 2 (quoted string)

“Baseline_Blade.dat” BldFile(3) - Name of file containing properties for blade 3 (quoted string) [unused for 2 blades]

---------------------- ROTOR-TEETER --------------------------------------------

0 TeetMod - Rotor-teeter spring/damper model {0: none, 1: standard, 2: user-defined from routine UserTeet} (switch) [unused for 3 blades]

0 TeetDmpP - Rotor-teeter damper position (degrees) [used only for 2 blades and when TeetMod=1]

0 TeetDmp - Rotor-teeter damping constant (N-m/(rad/s)) [used only for 2 blades and when TeetMod=1]

0 TeetCDmp - Rotor-teeter rate-independent Coulomb-damping moment (N-m) [used only for 2 blades and when TeetMod=1]

0 TeetSStP - Rotor-teeter soft-stop position (degrees) [used only for 2 blades and when TeetMod=1]

0 TeetHStP - Rotor-teeter hard-stop position (degrees) [used only for 2 blades and when TeetMod=1]

0 TeetSSSp - Rotor-teeter soft-stop linear-spring constant (N-m/rad) [used only for 2 blades and when TeetMod=1]

0 TeetHSSp - Rotor-teeter hard-stop linear-spring constant (N-m/rad) [used only for 2 blades and when TeetMod=1]

---------------------- DRIVETRAIN ----------------------------------------------

100 GBoxEff - Gearbox efficiency (%)

87.965 GBRatio - Gearbox ratio (-)

5.6E+09 DTTorSpr - Drivetrain torsional spring (N-m/rad)

1E+07 DTTorDmp - Drivetrain torsional damper (N-m/(rad/s))

---------------------- FURLING -------------------------------------------------

False Furling - Read in additional model properties for furling turbine (flag) [must currently be FALSE)

“unused” FurlFile - Name of file containing furling properties (quoted string) [unused when Furling=False]

---------------------- TOWER ---------------------------------------------------

11 TwrNodes - Number of tower nodes used for analysis (-)

“Baseline_Tower.dat” TwrFile - Name of file containing tower properties (quoted string)

---------------------- OUTPUT --------------------------------------------------

True SumPrint - Print summary data to “.sum” (flag)

1 OutFile - Switch to determine where output will be placed: {1: in module output file only; 2: in glue code output file only; 3: both} (currently unused)

True TabDelim - Use tab delimiters in text tabular output file? (flag) (currently unused)

“ES10.3E2” OutFmt - Format used for text tabular output (except time). Resulting field should be 10 characters. (quoted string) (currently unused)

0 TStart - Time to begin tabular output (s) (currently unused)

10 DecFact - Decimation factor for tabular output {1: output every time step} (-) (currently unused)

2 NTwGages - Number of tower nodes that have strain gages for output [0 to 9] (-)

1, 6 TwrGagNd - List of tower nodes that have strain gages [1 to TwrNodes] (-) [unused if NTwGages=0]

1 NBlGages - Number of blade nodes that have strain gages for output [0 to 9] (-)

8 BldGagNd - List of blade nodes that have strain gages [1 to BldNodes] (-) [unused if NBlGages=0]

OutList - The next line(s) contains a list of output parameters. See OutListParameters.xlsx for a listing of available output channels, (-)

“RotSpeed” - low-speed shaft speed

“GenSpeed” - High-speed shaft speed

“RotPwr” - Rotor power (this is equivalent to the low-speed shaft power)

“RotThrust” - Low-speed shaft thrust force (this is constant along the shaft and is equivalent to the rotor thrust force) (KN)

“BldPitch1” - Blade 1 pitch angle

“BldPitch2” - Blade 2 pitch angle

“BldPitch3” - Blade 3 pitch angle

“TipDzc1” -Blade 1 axial tip deflection (relative to the pitch axis)(m)

“TipDxb1” -Blade 1 flapwise tip deflection (relative to the pitch axis)(m)

“TipDyb1” -Blade 1 edgewise tip deflection (relative to the pitch axis)(m)

“TipDzc2” -Blade 2 axial tip deflection (relative to the pitch axis)(m)

“TipDxb2” -Blade 2 flapwise tip deflection (relative to the pitch axis)(m)

“TipDyb2” -Blade 2 edgewise tip deflection (relative to the pitch axis)(m)

“TipDzc3” -Blade 3 axial tip deflection (relative to the pitch axis)(m)

“TipDxb3” -Blade 3 flapwise tip deflection (relative to the pitch axis)(m)

“TipDyb3” -Blade 3 edgewise tip deflection (relative to the pitch axis)(m)

“RootFzc1” -Blade 1 axial force at the blade root (KN)

“RootFxb1” -Blade 1 flapwise shear force at the blade root(KN)

“RootFyb1” -Blade 1 edgewise shear force at the blade root (KN)

“RootMzc1” -Blade 1 pitching moment at the blade root(kN·m)

“RootMxb1” -Blade 1 edgewise moment (i.e., the moment caused by edgewise forces) at the blade root(kN·m)

“RootMyb1” -Blade 1 flapwise moment (i.e., the moment caused by flapwise forces) at the blade root(kN·m)

“RootFzc1” -Blade 2 axial force at the blade root (KN)

“RootFxb2” -Blade 2 flapwise shear force at the blade root(KN)

“RootFyb2” -Blade 2 edgewise shear force at the blade root (KN)

“RootMzc2” -Blade 2 pitching moment at the blade root(kN·m)

“RootMxb2” -Blade 2 edgewise moment (i.e., the moment caused by edgewise forces) at the blade root(kN·m)

“RootMyb2” -Blade 2 flapwise moment (i.e., the moment caused by flapwise forces) at the blade root(kN·m)

“RootFzc3” -Blade 3 axial force at the blade root (KN)

“RootFxb3” -Blade 3 flapwise shear force at the blade root(KN)

“RootFyb3” -Blade 3 edgewise shear force at the blade root (KN)

“RootMzc3” -Blade 3 pitching moment at the blade root(kN·m)

“RootMxb3” -Blade 3 edgewise moment (i.e., the moment caused by edgewise forces) at the blade root(kN·m)

“RootMyb3” -Blade 3 flapwise moment (i.e., the moment caused by flapwise forces) at the blade root(kN·m)

“YawBrTDxp” -Tower-top / yaw bearing fore-aft (translational) deflection (relative to the undeflected position)(m)

“YawBrTDyp” -Tower-top / yaw bearing side-to-side (translational) deflection (relative to the undeflected position)(m)

“YawBrTDzp” -Tower-top / yaw bearing axial (translational) deflection (relative to the undeflected position)(m)

“YawBrFzp” -Tower-top / yaw bearing axial force Directed along the zn- and zp-axes (kN)

“YawBrFxp” -Tower-top / yaw bearing fore-aft (nonrotating) shear force Directed along the xp-axis (kN)

“YawBrFyp” -Tower-top / yaw bearing side-to-side (nonrotating) shear force Directed along the yp-axis (kN)

“YawBrMzp” -Tower-top / yaw bearing yaw moment About the zn- and zp-axes (kN·m)

“YawBrMxp” -Nonrotating tower-top / yaw bearing roll moment About the xp-axis (kN·m)

“YawBrMyp” -Nonrotating tower-top / yaw bearing pitch moment About the yp-axis (kN·m)

“TwrBsFxt” -Tower base fore-aft shear force

“TwrBsFyt” -Tower base side-to-side shear force

“TwrBsFzt” -Tower base axial force

“TwrBsMxt” -Tower base roll (or side-to-side) moment (i.e., the moment caused by side-to-side forces)

“TwrBsMyt” -Tower base pitching (or fore-aft) moment (i.e., the moment caused by fore-aft forces)

“TwrBsMzt” -Tower base yaw (or torsional) moment

“Spn8FLxb1” -Blade 1 local flapwise shear force at span station 8 Directed along the local xb1-axis (kN)

“Spn8FLyb1” -Blade 1 local edgewise shear force at span station 8 Directed along the local yb1-axis (kN)

“Spn8FLzb1” -Blade 1 local axial force at span station 8 Directed along the local zb1-axis (kN)

“Spn8MLxb1” -Blade 1 local edgewise moment at span station 8 About the local xb1-axis (kN·m)

“Spn8MLyb1” -Blade 1 local flapwise moment at span station 8 About the local yb1-axis (kN·m)

“Spn8MLzb1” -Blade 1 local pitching moment at span station 8 About the local zb1-axis (kN·m)

“Spn8FLxb2” -Blade 2 local flapwise shear force at span station 8 Directed along the local xb2-axis (kN)

“Spn8FLyb2” -Blade 2 local edgewise shear force at span station 8 Directed along the local yb2-axis (kN)

“Spn8FLzb2” -Blade 2 local axial force at span station 8 Directed along the local zb2-axis (kN)

“Spn8MLxb2” -Blade 2 local edgewise moment at span station 8 About the local xb2-axis (kN·m)

“Spn8MLyb2” -Blade 2 local flapwise moment at span station 8 About the local yb2-axis (kN·m)

“Spn8MLzb2” -Blade 2 local pitching moment at span station 8 About the local zb2-axis (kN·m)

“Spn8FLxb3” -Blade 3local flapwise shear force at span station 8 Directed along the local xb3-axis (kN)

“Spn8FLyb3” -Blade 3local edgewise shear force at span station 8 Directed along the local yb3-axis (kN)

“Spn8FLzb3” -Blade 3local axial force at span station 8 Directed along the local zb3-axis (kN)

“Spn8MLxb3” -Blade 3local edgewise moment at span station 8 About the local xb3-axis (kN·m)

“Spn8MLyb3” -Blade 3local flapwise moment at span station 8 About the local yb3-axis (kN·m)

“Spn8MLzb3” -Blade 3local pitching moment at span station 8 About the local zb3-axis (kN·m)

“TwHt6FLxt” - Tower, Gage-6 (Node 4) roll, pitch, and yaw moments

“TwHt6FLyt” - Tower, Gage-6 (Node 4) roll, pitch, and yaw moments

“TwHt6FLzt” - Tower, Gage-6 (Node 4) roll, pitch, and yaw moments

“TwHt6MLxt” - Tower, Gage-6 (Node 4) roll, pitch, and yaw moments

“TwHt6MLyt” - Tower, Gage-6 (Node 4) roll, pitch, and yaw moments

“TwHt6MLzt” - Tower, Gage-6 (Node 4) roll, pitch, and yaw moments

##
END of input file (the word “END” must appear in the first 3 columns of this last OutList line)

Looking forward to your reply!

Regards,

Charlie