Control Application of Piezoelectric Materials to Aeroelastic Self-Excited Vibrations
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 sel...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2014/509024 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832566589779607552 |
|---|---|
| author | Mohammad Amin Rashidifar Darvish Ahmadi |
| author_facet | Mohammad Amin Rashidifar Darvish Ahmadi |
| author_sort | Mohammad Amin Rashidifar |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-058e98b10c7441a88d086f5b295a6db3 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-058e98b10c7441a88d086f5b295a6db32025-02-03T01:03:43ZengWileyShock and Vibration1070-96221875-92032014-01-01201410.1155/2014/509024509024Control Application of Piezoelectric Materials to Aeroelastic Self-Excited VibrationsMohammad Amin Rashidifar0Darvish Ahmadi1Department of Mechanical Engineering, Islamic Azad University, Shadegan Branch, Fatholmobin Bl, Shadegan, Khuzestan 6431863758, IranDepartment of Mechanical Engineering, Islamic Azad University, Shadegan Branch, Fatholmobin Bl, Shadegan, Khuzestan 6431863758, IranA 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.http://dx.doi.org/10.1155/2014/509024 |
| spellingShingle | Mohammad Amin Rashidifar Darvish Ahmadi Control Application of Piezoelectric Materials to Aeroelastic Self-Excited Vibrations Shock and Vibration |
| title | Control Application of Piezoelectric Materials to Aeroelastic Self-Excited Vibrations |
| title_full | Control Application of Piezoelectric Materials to Aeroelastic Self-Excited Vibrations |
| title_fullStr | Control Application of Piezoelectric Materials to Aeroelastic Self-Excited Vibrations |
| title_full_unstemmed | Control Application of Piezoelectric Materials to Aeroelastic Self-Excited Vibrations |
| title_short | Control Application of Piezoelectric Materials to Aeroelastic Self-Excited Vibrations |
| title_sort | control application of piezoelectric materials to aeroelastic self excited vibrations |
| url | http://dx.doi.org/10.1155/2014/509024 |
| work_keys_str_mv | AT mohammadaminrashidifar controlapplicationofpiezoelectricmaterialstoaeroelasticselfexcitedvibrations AT darvishahmadi controlapplicationofpiezoelectricmaterialstoaeroelasticselfexcitedvibrations |