Vibration Measurement Using Laser Triangulation for Applications in Wind Turbine Blades

Author:

Moreno-Oliva Víctor Iván,Flores-Diaz Ociel,Román-Hernández Edwin,Campos-García ManuelORCID,Campos-Mercado Eduardo,Dorrego-Portela José Rafael,Hernandez-Escobedo QuetzalcoatlORCID,Franco Jesus AlejandroORCID,Perea-Moreno Alberto-JesusORCID,Alcayde García AlfredoORCID

Abstract

The blades in a wind turbine are currently manufactured with flexible and light materials, which make them more susceptible to the effects of vibrations when the wind speed is high enough, causing fatigue damage, affecting the functionality of its structure and aerodynamic efficiency. This work presents a comparison of the modal vibration parameters, applied to a cantilever beam, determined with two experimental methods—the use of accelerometers and a proposed optical non-contact method—based on the principle of laser triangulation and photogrammetry techniques. This technique uses the geometric symmetry of the equidistant displacements along the z axis of the beam to obtain the amplitude data. Parameters such as natural frequency and modal form are obtained by fitting the data to a nonlinear equation with a solution which is an exponential/harmonic equation. Also, analytically, these parameters are determined, and a comparison is made between the experimental methods. The result shows that the relative error of the first-order natural vibration frequency is below 1%. The proposed method is simple, efficient, reliable, and it is also a method that has not been applied to the test of wind turbine blades, so its implementation as this type of wind turbine component is an area of opportunity for the validation of modal vibration parameters in the wind industry. An analysis of results is presented showing benefits of the proposed method and its limitations.

Publisher

MDPI AG

Subject

Physics and Astronomy (miscellaneous),General Mathematics,Chemistry (miscellaneous),Computer Science (miscellaneous)

Cited by 7 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Adaptive sampling for corrugated plate digitization using a laser displacement sensor;Science China Technological Sciences;2024-04-25

2. Use of an optical profilometer to measure the aerodynamic shape and the twist of a wind turbine blade;Journal of Renewable and Sustainable Energy;2024-01-01

3. Fuzzy Inference System for Improving the Input Shaping Control for a Flexible Beam;2023 23rd International Conference on Control, Automation and Systems (ICCAS);2023-10-17

4. Evaluation of aluminum molds using the null screens test;Modeling Aspects in Optical Metrology IX;2023-08-10

5. Noncontact Intelligent Vibrometer Based on Laser Triangulation;2023 5th International Conference on Intelligent Control, Measurement and Signal Processing (ICMSP);2023-05-19

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