Piezoelectric-based vibration damping and control of turbomachinery bladed disks

Jeffrey L. Kauffman, George A. Lesieutre

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

A vibration reduction concept, resonance frequency detuning, is presented and considered for application to turbomachinery bladed disks (blisks). Using piezoelectric material under short- or open-circuit conditions to alter the blade natural frequency, the structure is detuned from a changing excitation frequency, thus avoiding resonance. This approach is applicable to all vibration modes that strain the piezoelectric material, and higher electromechanical coupling coefficients produce greater response reductions. High damping, high sweep rate, and high coupling coefficient minimize peak response levels. For low damping and low sweep rates, resonance frequency detuning has a higher relative impact. For a range of expected values, peak reductions of 50% are certainly achievable. Experiments show qualitative agreement with simulations.

Original languageEnglish (US)
Title of host publication21st International Conference on Adaptive Structures and Technologies 2010, ICAST 2010
Pages485-497
Number of pages13
StatePublished - Dec 1 2010
Event21st International Conference on Adaptive Structures and Technologies 2010, ICAST 2010 - University Park, PA, United States
Duration: Oct 4 2010Oct 6 2010

Publication series

Name21st International Conference on Adaptive Structures and Technologies 2010, ICAST 2010

Other

Other21st International Conference on Adaptive Structures and Technologies 2010, ICAST 2010
CountryUnited States
CityUniversity Park, PA
Period10/4/1010/6/10

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Mechanics of Materials
  • Building and Construction

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  • Cite this

    Kauffman, J. L., & Lesieutre, G. A. (2010). Piezoelectric-based vibration damping and control of turbomachinery bladed disks. In 21st International Conference on Adaptive Structures and Technologies 2010, ICAST 2010 (pp. 485-497). (21st International Conference on Adaptive Structures and Technologies 2010, ICAST 2010).