Articles | Volume 9, issue 1
https://doi.org/10.5194/wes-9-49-2024
https://doi.org/10.5194/wes-9-49-2024
Research article
 | 
16 Jan 2024
Research article |  | 16 Jan 2024

Nonlinear vibration characteristics of virtual mass systems for wind turbine blade fatigue testing

Aiguo Zhou, Jinlei Shi, Tao Dong, Yi Ma, and Zhenhui Weng

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Short summary
This paper explores the nonlinear influence of the virtual mass mechanism on the test system in blade biaxial tests. The blade theory and simulation model are established to reveal the nonlinear amplitude–frequency characteristics of the blade-virtual-mass system. Increasing the amplitude of the blade or decreasing the seesaw length will lower the resonance frequency and load of the system. The virtual mass also affects the blade biaxial trajectory.
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