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Optimizing Piezoelectric Material Location and Size for Multiple-Mode Vibration Reduction of Turbomachinery Blades

Journal Article · · Journal of Vibration and Acoustics
DOI:https://doi.org/10.1115/1.4048263· OSTI ID:1670190
 [1];  [2];  [1]
  1. Univ. of Central Florida, Orlando, FL (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Modern turbomachinery blades have extremely low inherent damping, which can lead to high transient vibrations and failure through high-cycle fatigue. Smart materials enable vibration reduction while meeting strict blade requirements such as weight and aerodynamic efficiency. In particular, piezoelectric-based vibration reduction offers the potential to reduce vibration semi-actively while simultaneously harvesting sufficient energy to power the implementation. The placement and the size of the piezoelectric material is critical to the vibration reduction capabilities of the system. Furthermore, the implementation should target multiple vibration modes. In this study, we develop a procedure to optimize electromechanical coupling across multiple vibration modes for a representative turbomachinery blade with surface-mounted piezoelectric patches. Experimental validation demonstrates good coupling across three targeted modes with a single piezoelectric patch. Placing the piezoelectric material in regions of high signed strain energy for all targeted modes enables vibration reduction across all of the targeted modes.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE; US Department of the Navy, Office of Naval Research (ONR)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1670190
Report Number(s):
SAND--2020-6608J; 686984
Journal Information:
Journal of Vibration and Acoustics, Journal Name: Journal of Vibration and Acoustics Journal Issue: 2 Vol. 143; ISSN 1048-9002
Publisher:
The American Society of Mechanical Engineers (ASME)Copyright Statement
Country of Publication:
United States
Language:
English

References (28)

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Optimal Placement and Sizing of Piezoelectric Material for Multiple-Mode Vibration Reduction
  • Kelley, Christopher R.; Kauffman, Jeffrey L.
  • ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition, Volume 7C: Structures and Dynamics https://doi.org/10.1115/GT2018-77025
conference August 2018
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