Analysis on mechanism of several piezoelectric networks for vibration reduction of bladed disks

被引：0
|
作者：
Li L. [1 ,3 ]
Zhang F. [1 ,2 ]
Fan Y. [1 ,3 ]
机构：
[1] School of Energy and Power Engineering, Beijing University of Aeronautics and Astronautics, Beijing
[2] Key Laboratory of Advanced Measurement and Test Technique for Aviation Propulsion System, Shenyang Aerospace University, Shenyang, 110136, Liaoning Province
[3] Beijing Key Laboratory of Aero-engine Structure and Strength, Beijing University of Aeronautics and Astronautics, Beijing
来源：
Fan, Yu (fanyu04@buaa.edu.cn) | 1600年 / Beijing University of Aeronautics and Astronautics (BUAA)卷 / 35期
关键词：
Damping performance; Energy balance; Mistuning bladed disk; Modal electromechanical coupling factor; Piezoelectric network; Piezoelectric shunt; Vibration control;
D O I：
10.13224/j.cnki.jasp.2020.05.001
中图分类号：
学科分类号：
摘要：
The mechanisms of piezoelectric networks were further analyzed for the vibration reduction of cyclic periodic structures such as bladed disks. To illustrate how the energy dissipation and energy balance mechanisms affect the reduction of vibration, numerical studies were conducted based on a lumped parameter model to compare the performance of shunt circuits, parallel network and series network. The best damping performance of such three circuits were compared in both tuned and mistuned cases with varied mistune strength. This illustrated the effects of the energy dissipation. The resistance was introduced to the acyclic network to illustrate the combined action of energy balance and energy dissipation. The qualitative suggestions on the choice of blades to construct an acyclic network was given as well. Results showed that interconnecting all blades to a global piezoelectric network cannot increase the damping performance. The optimal networks were found with only few blades included and without any electric impedance, and this illustrated the effects of energy balance. Vibration reduction can be achieved by only interconnecting few blades (2 or 4 of the overall 24 blades) into the network without any electric components. © 2020, Editorial Department of Journal of Aerospace Power. All right reserved.
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页码：897 / 908
页数：11
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