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Estimating the Rain-Flow Fatigue Damage in Wind Turbine Blades Using Polynomial Chaos

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Proceedings of the International Symposium on Engineering under Uncertainty: Safety Assessment and Management (ISEUSAM - 2012)

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Abstract

Modern wind turbine blades are slender structures whose increased flexibilities have led to unforeseen aeroelastic instabilities leading to failures. In this study, the turbine blade is modeled as a two-dimensional airfoil and is subjected to random loading. The airfoil is assumed to oscillate only in the rotational degree of freedom. The loading is assumed to be stationary and Gaussian. The fatigue damage due to this loading is described through the rain-flow cycle counting method. An approach based on polynomial chaos expansion is used to obtain the response of the nonlinear oscillator.

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Authors and Affiliations

  1. Department of Applied Mechanics, Indian Institute of Technology Madras, Chennai, 600036, TN, India

    N. Ganesh & Sayan Gupta

Authors
  1. N. Ganesh
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  2. Sayan Gupta
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Correspondence to N. Ganesh .

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Editors and Affiliations

  1. , Civil Engineering, Bengal Engineering and Science Univ., Botanic Garden, Howrah, India

    Subrata Chakraborty

  2. Bengal Engineering and Science Univ., Howrah, India

    Gautam Bhattacharya

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Ganesh, N., Gupta, S. (2013). Estimating the Rain-Flow Fatigue Damage in Wind Turbine Blades Using Polynomial Chaos. In: Chakraborty, S., Bhattacharya, G. (eds) Proceedings of the International Symposium on Engineering under Uncertainty: Safety Assessment and Management (ISEUSAM - 2012). Springer, India. https://doi.org/10.1007/978-81-322-0757-3_46

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  • DOI: https://doi.org/10.1007/978-81-322-0757-3_46

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  • Publisher Name: Springer, India

  • Print ISBN: 978-81-322-0756-6

  • Online ISBN: 978-81-322-0757-3

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