Table of Contents

FiniteElementBladeModelling

https://bladednextgen.dnv.com/schema/0.4.1/Components/Blade/BladeModelling/FiniteElementBladeModelling.json

The properties for the structural modelling of the blade using finite element analysis without modal reduction.

  • BladeModellingType: string = FiniteElementBladeModelling
  • GeometricStiffnessModel: string = AxialLoadsOnly | FullModelWithOrientationCorrection | InternalLoadsOnly | Disabled
  • IgnoreAxesOrientationDifferencesForShear: boolean
  • WholeBladeModeDampingRatios: array[object (StructuralMode)]

A type of BladeModelling

Properties

GeometricStiffnessModel: string, optional

The geometric stiffness model to use for the blades. For blades with 1 part, the "axial loads only" model is recommended. This configuration is only appropriate for relatively stiff blades, undergoing small deflection. For more flexible blade models, a multi-part blade model is more appropriate. In this case, the "full with orientation correction" is the recommended option, as long as deflection remains small within each blade part.

default = AxialLoadsOnly

IgnoreAxesOrientationDifferencesForShear: boolean, optional

With this option selected, the effect of orientation difference between the neutral axis and shear axis on the blade elements are not taken into account. Please refer to the Bladed documentation "Bend-twist coupling in Bladed beam elements" doc No. 110052-UKBR-T-30 for further information.

default = False

BladeModellingType: string

Defines the specific type of BladeModelling model in use. For a FiniteElementBladeModelling object, this must always be set to a value of FiniteElementBladeModelling.

WholeBladeModeDampingRatios: array[ object (StructuralMode) ]

List of known whole-blade mode damping ratios. The whole-blade damping ratios will be converted into finite element degrees of freedom by Bladed. If the list is incomplete, meaning it lacks damping ratios for all modes, Bladed will assign frequency-proportional damping based on the damping ratio of the highest defined mode. The list must contain at least one entry.