Vibration Attenuation by a Combination of a Piezoelectric Stack and a Permanent Magnet
The present work proposes a non-contact vibration attenuator made up of a permanent magnet mounted on a piezoelectric stack. Two such actuators are made to work simultaneously in a 'twin-actuator' configuration. It is conceived that a controlled change in the gap between the actuator and t...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2012-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.3233/SAV-2012-0664 |
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| _version_ | 1832558507557126144 |
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| author | A. Nandi S. Neogy S. Bhaduri H. Irretier |
| author_facet | A. Nandi S. Neogy S. Bhaduri H. Irretier |
| author_sort | A. Nandi |
| collection | DOAJ |
| description | The present work proposes a non-contact vibration attenuator made up of a permanent magnet mounted on a piezoelectric stack. Two such actuators are made to work simultaneously in a 'twin-actuator' configuration. It is conceived that a controlled change in the gap between the actuator and the structure is capable of attenuation of vibration of the structure. This appropriate change in gap is achieved by controlled motion of the piezoelectric stacks. It is shown that the actuator works as an active damper when the extension and contraction of the actuators are made proportional to the velocity of the beam. The resolution of extension of a piezoelectric stack is in the order of nanometers. Thus in the proposed actuator the force of actuation can be applied with great precision. This actuator is also attractive for its simple constructional feature. |
| format | Article |
| id | doaj-art-2a695bf81b6743c483b2d2fdc3868b94 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-2a695bf81b6743c483b2d2fdc3868b942025-02-03T01:32:11ZengWileyShock and Vibration1070-96221875-92032012-01-0119471973410.3233/SAV-2012-0664Vibration Attenuation by a Combination of a Piezoelectric Stack and a Permanent MagnetA. Nandi0S. Neogy1S. Bhaduri2H. Irretier3Department of Mechanical Engineering, Jadavpur University, Kolkata, IndiaDepartment of Mechanical Engineering, Jadavpur University, Kolkata, IndiaDepartment of Applied Mechanics, Birla Institute of Technology, Mesra Ranchi, IndiaInstitute for Mechanics, University of Kassel, Kassel, GermanyThe present work proposes a non-contact vibration attenuator made up of a permanent magnet mounted on a piezoelectric stack. Two such actuators are made to work simultaneously in a 'twin-actuator' configuration. It is conceived that a controlled change in the gap between the actuator and the structure is capable of attenuation of vibration of the structure. This appropriate change in gap is achieved by controlled motion of the piezoelectric stacks. It is shown that the actuator works as an active damper when the extension and contraction of the actuators are made proportional to the velocity of the beam. The resolution of extension of a piezoelectric stack is in the order of nanometers. Thus in the proposed actuator the force of actuation can be applied with great precision. This actuator is also attractive for its simple constructional feature.http://dx.doi.org/10.3233/SAV-2012-0664 |
| spellingShingle | A. Nandi S. Neogy S. Bhaduri H. Irretier Vibration Attenuation by a Combination of a Piezoelectric Stack and a Permanent Magnet Shock and Vibration |
| title | Vibration Attenuation by a Combination of a Piezoelectric Stack and a Permanent Magnet |
| title_full | Vibration Attenuation by a Combination of a Piezoelectric Stack and a Permanent Magnet |
| title_fullStr | Vibration Attenuation by a Combination of a Piezoelectric Stack and a Permanent Magnet |
| title_full_unstemmed | Vibration Attenuation by a Combination of a Piezoelectric Stack and a Permanent Magnet |
| title_short | Vibration Attenuation by a Combination of a Piezoelectric Stack and a Permanent Magnet |
| title_sort | vibration attenuation by a combination of a piezoelectric stack and a permanent magnet |
| url | http://dx.doi.org/10.3233/SAV-2012-0664 |
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