Structural Performance Evaluation Of Modularized Wind Turbine Blade Through Finite Element Simulation

Bhat, Chandrashekhar and Norohna, Dilifa Jossley and Saldana, Faber A (2015) Structural Performance Evaluation Of Modularized Wind Turbine Blade Through Finite Element Simulation. International Journal of Mechanical, Aerospace, Industrial, Mechatronic and Manufacturing Engineering, 9 (6). pp. 930-942.

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Transportation of long turbine blades from one place to another is a difficult process. Hence a feasibility study of modularization of wind turbine blade was taken from structural standpoint through finite element analysis. Initially, a non-segmented blade is modeled and its structural behavior is evaluated to serve as reference. The resonant, static bending and fatigue tests are simulated in accordance with IEC61400-23 standard for comparison purpose. The non-segmented test blade is separated at suitable location based on trade off studies and the segments are joined with an innovative double strap bonded joint configuration. The adhesive joint is modeled by adopting cohesive zone modeling approach in ANSYS. The developed blade model is analyzed for its structural response through simulation. Performances of both the blades are found to be similar, which indicates that, efficient segmentation of the long blade is possible which facilitates easy transportation of the blades and on site reassembling. The location selected for segmentation and adopted joint configuration has resulted in an efficient segmented blade model which proves the methodology adopted for segmentation was quite effective. The developed segmented blade appears to be the viable alternative considering its structural response specifically in fatigue within considered assumptions.

Item Type: Article
Uncontrolled Keywords: Modularization; Fatigue; Cohesive Zone Modeling; Wind Turbine Blade
Subjects: Engineering > MIT Manipal > Mechanical and Manufacturing
Depositing User: MIT Library
Date Deposited: 30 Sep 2015 14:21
Last Modified: 30 Sep 2015 14:21

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