Research on the Control of Fatigue Loading System of Wind Turbine Blade Biaxial Hydraulic Actuator

This study analyzed requirements of the wind turbine blade fatigue loading, and proposed a novel design method for blade fatigue loading control system. The hardware and software of the control system were designed. Frequency scanning, frequency control and amplitude tracking flow chart have been presented. A control system of the fatigue loading facility was built based on this investigation. The loading test of wind turbine blade has been completed. The data and curve acquired from the test prove that the control system could satisfy loading requirements.

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Life prediction of wind turbine blades using multi-scale damage model

Journal of Reinforced Plastics and Composites ◽

10.1177/0731684421995886 ◽

2021 ◽

pp. 073168442199588

Author(s):

Sepideh Aghajani ◽

Mohammadreza Hemati ◽

Shams Torabnia

Keyword(s):

Wind Turbine ◽

Turbine Blade ◽

Fatigue Damage ◽

Life Prediction ◽

Turbine Blades ◽

Damage Model ◽

Fatigue Loading ◽

Multiaxial Fatigue ◽

Wind Turbine Blade ◽

Wind Turbine Blades

Wind turbine blade life prediction is the most important parameter to estimate the power generation cost. Due to the price and importance of wind blade, many experimental and theoretical methods were developed to estimate damages and blade life. A novel multiaxial fatigue damage model is suggested for the life prediction of a wind turbine blade. Fatigue reduction of fiber and interfiber characteristics are separately treated and simulated in this research. Damage behavior is considered in lamina level and then extended to laminate; hence, this model can be used for multidirectional laminated composites. The procedure of fatigue-induced degradation is implemented in an ABAQUS user material subroutine. By applying the fatigue damage model, life is estimated by the satisfaction of lamina fracture criteria. This model provides a comprehensive idea about how damage happens in wind blades regarding a multi-axis fatigue loading condition.

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Fatigue Life Evaluation For Wind Turbine Blade Based on Multistage Loading Accumulative Damage Theory

The Open Mechanical Engineering Journal ◽

10.2174/1874155x01509010422 ◽

2015 ◽

Vol 9 (1) ◽

pp. 422-427 ◽

Cited By ~ 2

Author(s):

Zhang Leian ◽

Huang Xuemei ◽

Yuan Guangming

Keyword(s):

Fatigue Life ◽

Theoretical Calculation ◽

Wind Turbine ◽

Turbine Blade ◽

Characteristic Curve ◽

Fatigue Loading ◽

Resonant Mode ◽

Wind Turbine Blade ◽

Damage Theory ◽

Multistage Loading

The fatigue life of MW wind turbine blade was assessed by applying theoretical calculation and test verification. Firstly, the fatigue characteristic curve of FRP material was obtained based on Palmgren-Miner damage theory. Furthermore, The fatigue life of Aeroblade1.5-40.3 wind turbine blade using multistage loading accumulative damage theory could be evaluated over 20 years accordingly. Then the coordinate system of wind turbine blade and its Bladed simulation model were set. By calculating fatigue loading, the moment distribution of fatigue test was obtained. Finally, the blade’s fatigue loading system driven by an eccentric mass was built and the multi-level amplitude resonant mode was adopted to carry on the test. Almost three months’ test results showed that the blade vibrating amplitude was constant, which illustrate the little variation of stiffness of loading point. The stable of stiffness could testify the fatigue life of blade was over 20 years. The results of in-site experiment were basically consistent with the theoretical calculation.

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Strength analysis of a 5-m composite wind turbine blade under static and fatigue loading conditions

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/942/1/012045 ◽

2020 ◽

Vol 942 ◽

pp. 012045

Author(s):

C Muyan ◽

D Coker

Keyword(s):

Wind Turbine ◽

Turbine Blade ◽

Fatigue Loading ◽

Wind Turbine Blade ◽

Strength Analysis ◽

Loading Conditions

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Novelty detection applied to vibration data from a CX-100 wind turbine blade under fatigue loading

Journal of Physics Conference Series ◽

10.1088/1742-6596/382/1/012047 ◽

2012 ◽

Vol 382 ◽

pp. 012047 ◽

Cited By ~ 8

Author(s):

N Dervilis ◽

M Choi ◽

I Antoniadou ◽

K M Farinholt ◽

S G Taylor ◽

...

Keyword(s):

Wind Turbine ◽

Turbine Blade ◽

Novelty Detection ◽

Fatigue Loading ◽

Wind Turbine Blade ◽

Vibration Data

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Research on Wind Turbine Blade Load Based on the Analysis of Structural Dynamics

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1022.147 ◽

2014 ◽

Vol 1022 ◽

pp. 147-150

Author(s):

Zhi Qiang Xu

Keyword(s):

Wind Turbine ◽

Turbine Blade ◽

Structural Dynamics ◽

Environmental Science ◽

Mechanical Systems ◽

Fatigue Loading ◽

Wind Turbine Blade ◽

Stochastic Dynamic ◽

Strong Wind ◽

Wide Range

Wind energy technology is an integrated technology, which involves aerodynamics, structural dynamics, meteorology, mechanical engineering, electrical engineering, control multiple disciplines technology, materials science, environmental science and other areas. This paper studies the structural dynamics of the wind turbine. On one hand, modern wind turbine is composed of various interacting components and subsystems, and its aerodynamic rotor design technique involves controlling a wide range of areas systems, mechanical systems, electrical systems. On the other hand, the wind turbine has characteristics different from the usual mechanical systems. Wind turbine power source is natural randomness of strong wind, The leaves are often run in a stall condition. The system has a strong stochastic dynamic process. The transmission system irregular power input is abnormal . The main structural components exposed to several times higher than normal rotating mechanical fatigue loading. Thus the unique characteristic of dynamics of the wind turbine is formed . Analysis of wind turbine blade load dynamics of basic research carried out in this article by means of an appropriate structure coordinates.

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