Open AccessTheoretical study to calculate the vibration modes of a wind turbine blade with a new composite material
Author(s) -
Rabie ElAlaoui,
Hamid Mounirv,
Boudi El Mostapha,
Abdellatif El Marjani
Publication year - 2018
Publication title -
world journal of environmental research
Language(s) - English
Resource type - Journals
ISSN - 2301-2641
DOI - 10.18844/wjer.v8i1.3946
Subject(s) - vibration , turbine blade , structural engineering , modal , blade (archaeology) , finite element method , beam (structure) , modal analysis , enhanced data rates for gsm evolution , normal mode , noise (video) , turbine , mode (computer interface) , torsional vibration , timoshenko beam theory , modal testing , acoustics , engineering , mechanical engineering , materials science , computer science , physics , composite material , operating system , telecommunications , image (mathematics) , artificial intelligence
A precise understanding of the dynamics of a blade is essential for its design, especially in the development of new structures and the resolution of noise and vibration problems. This understanding involves the study of experimental and/or theoretical modal analysis. These latter present effective tools for describing, understanding and modelling the dynamic aspect of each structure, in the present work, we are going to establish the Eigen-mode of a wind turbine blade made by a new composite material ‘hemp fibre’ using theoretical calculation for flap-wise, edge-wise and torsional mode using the finite element method applied to a structure consisting of a beam embedded at one end, based on the Euler-Bernoulli hypothesis and the equation of beam’s motion. Furthermore; we compare the obtained results with those of composite material made by fibreglass.
Keywords: Blade, Eigen-mode, hemp fibre, flap-wise, edge-wise, torsional, fibreglass.