128-Channel LDV Measures Operating and Static Tower Dynamics
Wind turbine towers are large structures whose dynamic behaviour changes as rotor loading, drive-train coupling, and ambient wind interact. That makes modal interpretation difficult when the measurement method is slow, sparse or intrusive. This article summarises a field campaign carried out in Las Navas del Marques, Avila, Spain, where Ommatidia LiDAR used a 128-channel laser Doppler vibrometer (LDV) to observe a real turbine tower under both moving-rotor and static-rotor conditions. The result was a spatially resolved view of how the same structure behaves with and without operational forcing, captured in roughly 2 seconds and without mounting sensors on the tower.
By Oscar R. Enríquez Paz y Puente, Product Specialist, Ommatidia LiDAR, Spain
Reliable tower dynamics start with one practical question: can engineers capture enough spatial information, fast enough, to separate structural behaviour from operational forcing?
