Extensive investigations have been conducted to study the vibration localization phenomenon and the excessive forced response that can be caused by mistuning in bladed disks. Most previous researches have focused on analyzing∕predicting localization or attacking the mistuning issue via mechanical tailoring. Few have focused on developing effective vibration control methods for such systems. This study extends the piezoelectric network concept, which has been utilized for mode delocalization in periodic structures, to the control of mistuned bladed disks under engine order excitation. A piezoelectric network is synthesized and optimized to effectively suppress vibration in bladed disks. One of the merits of such an approach is that the optimum design is independent of the number of spatial harmonics, or engine orders. Local circuits are first formulated by connecting inductors and resistors with piezoelectric patches on the individual blades. Although these local circuits can function as conventional damped absorber when properly tuned, they do not perform well for bladed disks under all engine order excitations. To address this issue, capacitors are introduced to couple the individual local circuitries. Through such networking, an absorber system that is independent of the engine order can be achieved. Monte Carlo simulation is performed to investigate the effectiveness of the network for a bladed disk with a range of mistuning level of its mechanical properties. The robustness issue of the network in terms of detuning of the electric circuit parameters is also studied. Finally, negative capacitance is introduced and its effect on the performance and robustness of the network is investigated.
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e-mail: yhbler@gmail.com
e-mail: kwwang@psu.edu
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October 2007
Technical Papers
Piezoelectric Networks for Vibration Suppression of Mistuned Bladed Disks
Hongbiao Yu,
Hongbiao Yu
Graduate Assistant
Structural Dynamics and Controls Lab,
e-mail: yhbler@gmail.com
The Pennsylvania State University
, 157 Hammond Building, University Park, PA 16802
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K. W. Wang
K. W. Wang
William E. Diefenderfer Chaired Professor in Mechanical Engineering
ASME Fellow
Structural Dynamics and Controls Lab,
e-mail: kwwang@psu.edu
The Pennsylvania State University
, 157 Hammond Building, University Park, PA 16802
Search for other works by this author on:
Hongbiao Yu
Graduate Assistant
Structural Dynamics and Controls Lab,
The Pennsylvania State University
, 157 Hammond Building, University Park, PA 16802e-mail: yhbler@gmail.com
K. W. Wang
William E. Diefenderfer Chaired Professor in Mechanical Engineering
ASME Fellow
Structural Dynamics and Controls Lab,
The Pennsylvania State University
, 157 Hammond Building, University Park, PA 16802e-mail: kwwang@psu.edu
J. Vib. Acoust. Oct 2007, 129(5): 559-566 (8 pages)
Published Online: May 21, 2007
Article history
Received:
September 14, 2006
Revised:
May 21, 2007
Citation
Yu, H., and Wang, K. W. (May 21, 2007). "Piezoelectric Networks for Vibration Suppression of Mistuned Bladed Disks." ASME. J. Vib. Acoust. October 2007; 129(5): 559–566. https://doi.org/10.1115/1.2775511
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