Control Application of Piezoelectric Materials to Aeroelastic Self-Excited Vibrations
Joint Authors
Rashidifar, Mohammad Amin
Ahmadi, Darvish
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-03-17
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
A method for application of piezoelectric materials to aeroelasticity of turbomachinery blades is presented.
The governing differential equations of an overhung beam are established.
The induced voltage in attached piezoelectric sensors due to the strain of the beam is calculated.
In aeroelastic self-excited vibrations, the aerodynamic generalized force of a specified mode can be described as a linear function of the generalized coordinate and its derivatives.
This simplifies the closed loop system designed for vibration control of the corresponding structure.
On the other hand, there is an industrial interest in measurement of displacement, velocity, acceleration, or a contribution of them for machinery condition monitoring.
Considering this criterion in quadratic optimal control systems, a special style of performance index is configured.
Utilizing the current relations in an aeroelastic case with proper attachment of piezoelectric elements can provide higher margin of instability and lead to lower vibration magnitude.
American Psychological Association (APA)
Rashidifar, Mohammad Amin& Ahmadi, Darvish. 2014. Control Application of Piezoelectric Materials to Aeroelastic Self-Excited Vibrations. Shock and Vibration،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1047939
Modern Language Association (MLA)
Rashidifar, Mohammad Amin& Ahmadi, Darvish. Control Application of Piezoelectric Materials to Aeroelastic Self-Excited Vibrations. Shock and Vibration No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-1047939
American Medical Association (AMA)
Rashidifar, Mohammad Amin& Ahmadi, Darvish. Control Application of Piezoelectric Materials to Aeroelastic Self-Excited Vibrations. Shock and Vibration. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1047939
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1047939