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Can I read Non-linear Dynamics of Wind Turbine Wings on EtoBox?
Non-linear Dynamics of Wind Turbine Wings by J.W. Larsen; S.R.K. Nielsen is a Engineering article available to read on EtoBox.
What is Non-linear Dynamics of Wind Turbine Wings about?
The paper deals with the formulation of non-linear vibrations of a wind turbine wing described in a wing fixed moving coordinate system. The considered structural model is a Bernoulli-Euler beam with due consideration to axial twist. The theory includes geometrical non-linearities induced by the rotation of the aerodynamic load and the curvature, as well as inertial induced non-linearities caused by the support point motion. The non-linear partial differential equations of motion in the moving frame of reference have been discretized, using the fixed base eigenmodes as a functional basis. Important non-linear couplings between the fundamental blade mode and edgewise modes have been identified based on a resonance excitation of the wing, caused by a harmonically varying support point motion with the circular frequency . Assuming that the fundamental blade and edgewise eigenfrequencies have the ratio of 2 / 1 2, internal resonances between these modes have been studied. It is demonstrated that for / 1 0.66, 1.33, 1.66 and 2.33 coupled periodic motions exist brought forward by parametric excitation from the support point in addition to the resonances at / 1 1.0 and / 2 1.0 partly caus
Who reads Non-linear Dynamics of Wind Turbine Wings?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- J.W. Larsen; S.R.K. Nielsen
- Publisher
- Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0020-7462)
- Published
- 2006
- Language
- EN
- Field
- Engineering (Physical Sciences)