Performance Analysis of a Hybrid One-Sided Magnetic Exciter Mounted on a Piezoelectric Stack
The present work proposes a non-contact hybrid exciter especially useful for harmonic excitation of lightly damped structures/rotors. In the proposed exciter an electromagnet is placed on a piezoelectric stack and the extension of the piezoelectric stack is made almost equal to the displacement of t...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Wiley
2010-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.3233/SAV-2010-0512 |
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| _version_ | 1832556569070403584 |
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| author | A. Nandi S. Neogy |
| author_facet | A. Nandi S. Neogy |
| author_sort | A. Nandi |
| collection | DOAJ |
| description | The present work proposes a non-contact hybrid exciter especially useful for harmonic excitation of lightly damped structures/rotors. In the proposed exciter an electromagnet is placed on a piezoelectric stack and the extension of the piezoelectric stack is made almost equal to the displacement of the structure using a simple tracking control. This largely eliminates stiffness coupling between the structure/rotor and the exciter and non-linearity in the excitation force due to the vibration of the structure/rotor. The stiffness and inertia of the piezoelectric stack is considered in the analysis. A SIMULINK model of the combined structure and the exciter is developed for a full time-domain simulation of the excitation system. |
| format | Article |
| id | doaj-art-b07411cedbf0437eb3f3c9c513fdc4e7 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2010-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-b07411cedbf0437eb3f3c9c513fdc4e72025-02-03T05:45:07ZengWileyShock and Vibration1070-96221875-92032010-01-0117220521510.3233/SAV-2010-0512Performance Analysis of a Hybrid One-Sided Magnetic Exciter Mounted on a Piezoelectric StackA. Nandi0S. Neogy1Department of Mechanical Engineering, Jadavpur University, Kolkata 700 032, IndiaDepartment of Mechanical Engineering, Jadavpur University, Kolkata 700 032, IndiaThe present work proposes a non-contact hybrid exciter especially useful for harmonic excitation of lightly damped structures/rotors. In the proposed exciter an electromagnet is placed on a piezoelectric stack and the extension of the piezoelectric stack is made almost equal to the displacement of the structure using a simple tracking control. This largely eliminates stiffness coupling between the structure/rotor and the exciter and non-linearity in the excitation force due to the vibration of the structure/rotor. The stiffness and inertia of the piezoelectric stack is considered in the analysis. A SIMULINK model of the combined structure and the exciter is developed for a full time-domain simulation of the excitation system.http://dx.doi.org/10.3233/SAV-2010-0512 |
| spellingShingle | A. Nandi S. Neogy Performance Analysis of a Hybrid One-Sided Magnetic Exciter Mounted on a Piezoelectric Stack Shock and Vibration |
| title | Performance Analysis of a Hybrid One-Sided Magnetic Exciter Mounted on a Piezoelectric Stack |
| title_full | Performance Analysis of a Hybrid One-Sided Magnetic Exciter Mounted on a Piezoelectric Stack |
| title_fullStr | Performance Analysis of a Hybrid One-Sided Magnetic Exciter Mounted on a Piezoelectric Stack |
| title_full_unstemmed | Performance Analysis of a Hybrid One-Sided Magnetic Exciter Mounted on a Piezoelectric Stack |
| title_short | Performance Analysis of a Hybrid One-Sided Magnetic Exciter Mounted on a Piezoelectric Stack |
| title_sort | performance analysis of a hybrid one sided magnetic exciter mounted on a piezoelectric stack |
| url | http://dx.doi.org/10.3233/SAV-2010-0512 |
| work_keys_str_mv | AT anandi performanceanalysisofahybridonesidedmagneticexcitermountedonapiezoelectricstack AT sneogy performanceanalysisofahybridonesidedmagneticexcitermountedonapiezoelectricstack |