Overview of The Blade Flexibility Options

Bladed utilises a finite element (FE) model to simulate the flexibility of the blades. Additionally, it can incorporate a modal reduction technique to enhance computational efficiency. To account for the non-linear behaviour of larger blades, Bladed offers several geometric stiffness models and supports the definition of multi-part blades.

Users have the option to model the blades in three different ways. These are located in the Flexibility screen of the GUI and include the following options:

• Finite element (no modal reduction): This approach involves structural modelling of the blade using finite element analysis without modal reduction.
• Modal reduction: In this method, the blade’s structural modelling combines a finite element model with modal reduction.
• Rigid: Disable the Flexibility Enabled option to make the blade completely rigid.

Changing between these three options allows for a convenient way of changing between rigid, modal reduced, or complete finite element blades.

Last updated 13-12-2024