Finite element analysis with an improved failure criterion for composite wind turbine blades

Forschung auf dem Gebiet des Ingenieurwesens A - Tập 72 - Trang 193-207 - 2008
J. Selwin Rajadurai1, T. Christopher1, G. Thanigaiyarasu2, B. Nageswara Rao3
1Faculty of Mechanical Engineering, Government College of Engineering, Tirunelveli, India
2Faculty of Mechanical Engineering, Anna University, Chennai, India
3Structural Analysis and Testing Group, Vikram Sarabhai Space Centre, Trivandrum, India

Tóm tắt

Some interesting studies are made in this paper on the life management of a composite wind turbine blade. It presents the details of finite element modeling and validation, blade response under service loading conditions, power coefficient evaluation for the optimum design parameters of the blade configuration, development of failure envelope and fatigue life estimations. Finite element analysis results are found to be in good agreement with existing test results on a typical composite blade configuration. The failure envelope generated from the present modified failure criterion correlates well with the test results on different composite materials. The procedure adopted in this paper can be utilized for optimum design of large size composite wind turbine blades.

Tài liệu tham khảo

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