BladeStabilityAnalysis coming soon
https://bladednextgen.dnv.com/schema/0.4.1/SteadyCalculation/BladeStabilityAnalysis.json
Not supported yet
Defines a calculation which produces the damping and frequency of all the coupled rotor or blade modes plotted against wind speed for a single rotor. This calculation allows analysis over a wider range of inflow conditions than the Cambell diagram calculation, rather than being constrained to normal operating conditions.
: string =SteadyCalculationType
BladeStabilityAnalysis
: numberMinimumCorrelationCoefficient
: object (SteadyCalculationOutputs)Outputs
: booleanTransformRotorModesToNonRotating
: number (rad)AzimuthAngle
: number (rad/s)MaximumPlotFrequency
: object (CustomLinearModelDll)CustomLinearModelDll
: object (BladeStabilityPerturbations)Perturbations
: object (a type of BladeStabilityAnalysisModeOfOperation)ModeOfOperation
A type of SteadyCalculation
Properties
MinimumCorrelationCoefficient
: number, optionalcoming soon
The minimum acceptable correlation coefficient for the relationship between a state value and a state derivative. If it is below the minimum, the relationship is disregarded and a zero value is taken.
default = 0.8
Outputs
: object(SteadyCalculationOutputs), optionalcoming soon
TransformRotorModesToNonRotating
: boolean, optionalcoming soon
If true, a multi-blade coordinate (MBC) transform will be performed to transform the rotating modes into the stationary frame of reference. This will generate forward and backward whirling modes in a Campbell diagram.
default = False
AzimuthAngle
: number (rad), optionalcoming soon
The fixed azimuth angle of the rotor (zero azimuth indicates blade 1 pointing upwards).
default = 0.0
MaximumPlotFrequency
: number (rad/s), optionalcoming soon
The maximum frequency for modes to be shown in the Campbell diagram plot. The default value is 20 * 2 * 3.14159265358979323
default = 125.663706144
CustomLinearModelDll
: object(CustomLinearModelDll), optionalcoming soon
The definition for an alternative calculation for the linear model analysis. If omitted, the Bladed calculation will be used.
Perturbations
: object(BladeStabilityPerturbations), optionalcoming soon
The perturbations to apply during the linearisation calculations.
SteadyCalculationType
: stringcoming soon
Defines the specific type of SteadyCalculation model in use. For a BladeStabilityAnalysis
object, this must always be set to a value of BladeStabilityAnalysis
.
ModeOfOperation
: object (a type of BladeStabilityAnalysisModeOfOperation) coming soon
The operating mode of the turbine for which to analyse the blade stability.
Can be any of the following types: