Modal analysis of small turbine blade made from glass fibres composites

8th International Conference on Advanced Concepts in Mechanical Engineering

Munteanu, M.V.^1 ; Stanciu, M.D.^1 ; Nstac, S.M.^2 ; Savin, A.^3

Mechanical Engineering Department, Transilvania University of Braov, Braov, Romania^1

University Dunarea de Jos of Galai, Faculty of Engineering, Brila, Romania^2

National Institute of Research and Development for Technical Physics, Nondestructive Testing Department, 47 D. Mangeron Blvd, Iasi

700050, Romania^3

关键词: 3D virtual models;    ABAQUS software;    Fixed structure;    Free structures;    Modal response;    Turbine blade;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/444/6/062004/pdf
DOI  :  10.1088/1757-899X/444/6/062004

来源: IOP

【 摘 要 】

The paper presents the modal analysis of a wind turbine type WTB type GE 1.5sle, scale 1:5, obtained by numerical modeling. 3D virtual model of blade was designed in CatiaV5 and imported in Abaqus software. The structure was built up as GFRP laminated composite with 5 layers and the materials properties were obtained from tensile test. In the first stage, the modes and natural frequencies of the blade were modelled as a composite structure reinforced with glass fibre fabric. In the second step the modal response of the blade having delaminated areas was analyzed. The results emphasized that the values of the natural frequencies change both in the analysis of the free structure and the fixed structure.