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Modeling and vibration feedback control of rotating tapered composite thin-walled blade

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Abstract

This paper addresses the problem of the modeling and vibration control of tapered rotating blade modeled as thin-walled beams and incorporating damping capabilities. The blade model incorporates non-classical features such as anisotropy, transverse shear, secondary warping and includes the centrifugal and Coriolis force fields. For the rotating blade system, a thorough validation and assessment of a number of non-classical features including the taper characteristics is accomplished. The damping capabilities are provided by a system of piezoactuators bonded or embedded into the structure and spread over the entire span of the beam. Based on the converse piezoelectric effect, the piezoactuators produce a localized strain field in response to a voltage and consequently, a change of the dynamic response characteristics is induced. A velocity feedback control law relating the piezoelectrically induced transversal bending moment at the beam tip with the appropriately selected kinematical response quantity is used and the beneficial effects upon the closed-loop dynamic characteristics of the blade are highlighted.

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Authors and Affiliations

  1. Department of Mechanical Engineering Korea University Anamdong, 136-701, Sungbuk-ku, Seoul, Korea

    Jae Kyung Shim & Sungsoo Na

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  1. Jae Kyung Shim
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  2. Sungsoo Na
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Correspondence to Sungsoo Na.

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Shim, J.K., Na, S. Modeling and vibration feedback control of rotating tapered composite thin-walled blade. KSME International Journal 17, 380–390 (2003). https://doi.org/10.1007/BF02984364

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  • DOI: https://doi.org/10.1007/BF02984364

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