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Dynamics and Control of Energy Systems pp 171–194Cite as

Intermittency in a Pitch-Plunge Aeroelastic System

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Part of the book series: Energy, Environment, and Sustainability ((ENENSU))

Abstract

This chapter focuses on investigating the phenomenon of intermittency in the dynamical behavior of aeroelastic systems. To that end, a classical two degree-of freedom pitch plunge aeroelastic system is considered as the representative aeroelastic model. Investigations are first carried out on the route to aeroelastic flutter in fluctuating flow conditions through wind tunnel experiments. The recurring nature of intermittent periodic bursts observed in the pre-flutter response are subsequently utilized to develop quantitative measures using time series based tools, that can serve as precursors to flutter instability. To gain further insights into the experimental observations, numerical investigations are carried out using a well known two degree-of-freedom pitch plunge mathematical model for the aeroelastic system. A stochastic bifurcation analysis is also carried out that provide insights into the noise induced dynamical stability characteristics. Finally, a detailed study is undertaken to investigate the physical mechanisms that lead to the appearance of intermittency. Particularly, the effect of time scales of the flow fluctuations are investigated.

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Disclaimer

The figures and tables used in this chapter are reproduced with permission from Venkatramani et al. (2016, 2017a, b, 2018a, b). Excerpts from parts of Venkatramani et al. (2017b, 2018a, b) are also re-used here with appropriate permissions.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Shiv Nadar University, Greater Noida, 201314, India

    J. Venkatramani

  2. Department of Aerospace Engineering, Indian Institute of Technology Madras, Chennai, 600020, India

    Sunetra Sarkar

  3. Department of Applied Mechanics, Indian Institute of Technology Madras, Chennai, 600020, India

    Sayan Gupta

Authors
  1. J. Venkatramani
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  2. Sunetra Sarkar
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  3. Sayan Gupta
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Correspondence to J. Venkatramani .

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Editors and Affiliations

  1. Department of Mechanical Engineering, Jadavpur University, Jadavpur, Kolkata, West Bengal, India

    Achintya Mukhopadhyay

  2. Department of Mechanical Engineering, Jadavpur University, Jadavpur, Kolkata, West Bengal, India

    Swarnendu Sen

  3. Department of Mechanical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India

    Dipankar Narayan Basu

  4. Department of Mechanical Engineering, National Institute of Technology Durgapur, Durgapur, West Bengal, India

    Sirshendu Mondal

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Venkatramani, J., Sarkar, S., Gupta, S. (2020). Intermittency in a Pitch-Plunge Aeroelastic System. In: Mukhopadhyay, A., Sen, S., Basu, D., Mondal, S. (eds) Dynamics and Control of Energy Systems. Energy, Environment, and Sustainability. Springer, Singapore. https://doi.org/10.1007/978-981-15-0536-2_8

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  • DOI: https://doi.org/10.1007/978-981-15-0536-2_8

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  • Publisher Name: Springer, Singapore

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  • Online ISBN: 978-981-15-0536-2

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