Rotational sampling in wind turbines: Difference between revisions

Revision as of 23:00, 13 June 2023

Revision as of 22:04, 14 June 2023

Line 2:

{{Refimprove|date=October 2013}}

}}

The loads on both [[horizontal-axis wind turbine]]s (HAWTs) and [[vertical-axis wind turbine]]s (VAWTs) are [[cyclic]]; the [[thrust]] and [[torque]] acting on the blades depend on where the blade is. In a horizontal axis wind turbine, both the apparent [[wind speed]] seen by the blade and the [[angle of attack]] depends on the blade's position. This phenomenon is described as [[Rotational sampling in wind turbines|'''rotational sampling]]'''. This article will provide insight into the cyclic nature of the loads that arise because of rotational sampling for a horizontal axis wind turbine.

Rotational sampling can be divided into two parts: [[Deterministic system|deterministic]] and [[Stochastic process|stochastic]]. Deterministic processes present themselves as spikes on a [[Power spectral density|power spectrum]], where as stochastic processes spread over a wider [[frequency range]].

Line 70:

==Structural loads==

[[Spectral analysis (disambiguation)|Spectral analysis]] of component loading is useful in [[fatigue analysis]].

==References==