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Showing 1 to 4 of 4 for “"phase-locked excitation"”.
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The Development of a Phase Locked Excitation Testing Method for Full‐Scale Wind Turbine Blades
… systems. These systems do not allow for the load phase angle to be controlled, which leads to inaccurate loading distributions, when compared to actual field gathered data. The PhLEX (Phase Locked Excitation System) testing method outlined herein utilizes resonant excitation system in order to …
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Proof of Concept Test for Dual-Axis Resonant Phase-Locked Excitation (PhLEX) Fatigue Testing Method for Wind Turbine Blades
… in the development of the dual-axis resonant Phase-Locked Excitation (PhLEX) fatigue test method. The PhLEX method fatigues wind turbine blades by loading both flapwise and lead-lag directions simultaneously at the leadlag fundamental frequency while controlling the phase between the …
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The Development of an Adaptive Control System for a Phase-Locked Excitation (PhLEX) Method for Advanced Wind Turbine Blade Fatigue Testing
… conjunction with another actuator to provide a phase-locked excitation method with adaptive algorithms and advanced control system strategies. This testing method will provide a more representative loading of the blade for fatigue testing as compared to loading seen in the field. The control …
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The Development of a Phase Locked Wind Turbine Blade Finite Element Model to Predict Loads and Deflections During Fatigue Testing
… systems. These systems do not allow for the load phase angle to be controlled, and the maximum load application in the edge and flap directions are allowed to vary. The PhLEX (Phase Locked Excitation System) under development utilizes a resonant excitation system in order to reduce hydraulic …