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

Abstract

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.

Authors:
 [1];  [2];  [1]
  1. Univ. of Central Florida, Orlando, FL (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE; US Department of the Navy, Office of Naval Research (ONR)
OSTI Identifier:
1670190
Report Number(s):
SAND-2020-6608J
Journal ID: 1048-9002; 686984
Grant/Contract Number:  
AC04-94AL85000; N00014-17-1-2527
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Vibration and Acoustics
Additional Journal Information:
Journal Name: Journal of Vibration and Acoustics
Publisher:
The American Society of Mechanical Engineers (ASME)
Country of Publication:
United States
Language:
English
Subject:
smart materials and structures; structural dynamics and control; vibration control

Citation Formats

Kelley, Christopher R., Lopp, Garret Kenneth, and Kauffman, Jeffrey L. Optimizing Piezoelectric Material Location and Size for Multiple-Mode Vibration Reduction of Turbomachinery Blades. United States: N. p., 2020. Web. doi:10.1115/1.4048263.
Kelley, Christopher R., Lopp, Garret Kenneth, & Kauffman, Jeffrey L. Optimizing Piezoelectric Material Location and Size for Multiple-Mode Vibration Reduction of Turbomachinery Blades. United States. doi:10.1115/1.4048263.
Kelley, Christopher R., Lopp, Garret Kenneth, and Kauffman, Jeffrey L. Mon . "Optimizing Piezoelectric Material Location and Size for Multiple-Mode Vibration Reduction of Turbomachinery Blades". United States. doi:10.1115/1.4048263.
@article{osti_1670190,
title = {Optimizing Piezoelectric Material Location and Size for Multiple-Mode Vibration Reduction of Turbomachinery Blades},
author = {Kelley, Christopher R. and Lopp, Garret Kenneth and Kauffman, Jeffrey L.},
abstractNote = {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.},
doi = {10.1115/1.4048263},
journal = {Journal of Vibration and Acoustics},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {9}
}

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