Damage mode identification and singular signal detection of composite wind turbine blade using acoustic emission

Structural Analysis of a Composite Wind Turbine Blade

The design of an optimised horizontal axis 5-meterlong wind turbine rotor blade in according with IEC 61400-2 standard is a research and development project in order to fulfil the requirements of high efficiency of torque from wind production and to optimise the structural components to the lightest and strongest way possible. For this purpose, a research study is presented here by focusing on ...

Wind Turbine Blade Design

A detailed review of the current state-of-art for wind turbine blade design is presented, including theoretical maximum efficiency, propulsion, practical efficiency, HAWT blade design, and blade loads. The review provides a complete picture of wind turbine blade design and shows the dominance of modern turbines almost exclusive use of horizontal axis rotors. The aerodynamic design principles fo...

Damage Detection Based on Static Strain Responses Using FBG in a Wind Turbine Blade

The damage detection of a wind turbine blade enables better operation of the turbines, and provides an early alert to the destroyed events of the blade in order to avoid catastrophic losses. A new non-baseline damage detection method based on the Fiber Bragg grating (FBG) in a wind turbine blade is developed in this paper. Firstly, the Chi-square distribution is proven to be an effective damage...

Acoustic Emission Monitoring of a Wind Turbine Blade during a Fatigue Test∗ψ

∗ This work is supported by the U. S. Department of Energy under Contract DE-AC04-94AL85000. Ψ This paper is declared a work of the U. S. Government and is not subject to copyright protection in the United States. ABSTRACT A fatigue test of a wind turbine blade was conducted at the National Renewable Energy Laboratory. Acoustic emission monitoring of the test was performed, starting with the se...

Barely visible impact damage detection in a composite turbine blade using 3D Scanning Laser Vibrometery