A relationship between unbalance vibration compensators for five-axes active magnetic bearing systems and vibration suppression utilized its relation
An active magnetic bearing (AMB) is utilized widely in vacuum apparatuses such as a turbo molecular pump (TMP). The rotor supported by the AMB in the TMP is vibrated by the unbalance of the mass of the rotor, the electromagnetic force of the AMB and the location of the AMB. As the methods to suppres...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | Japanese |
| Published: |
The Japan Society of Mechanical Engineers
2016-04-01
|
| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/82/837/82_15-00607/_pdf/-char/en |
| _version_ | 1798015252718157824 |
|---|---|
| author | Taiki NAKAMURA Shinji WAKUI |
| author_facet | Taiki NAKAMURA Shinji WAKUI |
| author_sort | Taiki NAKAMURA |
| collection | DOAJ |
| description | An active magnetic bearing (AMB) is utilized widely in vacuum apparatuses such as a turbo molecular pump (TMP). The rotor supported by the AMB in the TMP is vibrated by the unbalance of the mass of the rotor, the electromagnetic force of the AMB and the location of the AMB. As the methods to suppress this vibration, phase-variable type Peak-of-Gain Control (JIS B 0913-1, Unbalance Force Counteracting Control: UFCC), phase-variable type Automatic Balancing System (JIS B 0913-1, Unbalance Force Rejection Control: UFRC) and Phase-Variable Control (PVC) have been reported. The UFCC (UFRC) suppresses the vibration by increasing (decreasing) the bearing stiffness and giving the damping effects at the rotational frequency. However, the relationship between the UFCC and the UFRC is not expressed. Accordingly, we investigate the UFCC (UFRC) is corresponded to the UFRC (UFCC) by using the phase changes. On the other hand, the repetitive control which is one of the periodic disturbance suppression methods also has been proposed. The control suppresses the unbalance vibration based on the internal model principle. For the unbalance vibration compensation, we clarify the UFCC is considered as repetitive control by using the pole assignment. Moreover, we show the unbalance vibration is further suppressed by using the UFCC which is corresponded to the rotational frequency and the second harmonic. |
| first_indexed | 2024-04-11T15:30:23Z |
| format | Article |
| id | doaj.art-66d0884907704d75925fc0bf253d63fb |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-11T15:30:23Z |
| publishDate | 2016-04-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-66d0884907704d75925fc0bf253d63fb2022-12-22T04:16:09ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612016-04-018283715-0060715-0060710.1299/transjsme.15-00607transjsmeA relationship between unbalance vibration compensators for five-axes active magnetic bearing systems and vibration suppression utilized its relationTaiki NAKAMURA0Shinji WAKUI1Tokyo University of Agriculture and TechnologyTokyo University of Agriculture and TechnologyAn active magnetic bearing (AMB) is utilized widely in vacuum apparatuses such as a turbo molecular pump (TMP). The rotor supported by the AMB in the TMP is vibrated by the unbalance of the mass of the rotor, the electromagnetic force of the AMB and the location of the AMB. As the methods to suppress this vibration, phase-variable type Peak-of-Gain Control (JIS B 0913-1, Unbalance Force Counteracting Control: UFCC), phase-variable type Automatic Balancing System (JIS B 0913-1, Unbalance Force Rejection Control: UFRC) and Phase-Variable Control (PVC) have been reported. The UFCC (UFRC) suppresses the vibration by increasing (decreasing) the bearing stiffness and giving the damping effects at the rotational frequency. However, the relationship between the UFCC and the UFRC is not expressed. Accordingly, we investigate the UFCC (UFRC) is corresponded to the UFRC (UFCC) by using the phase changes. On the other hand, the repetitive control which is one of the periodic disturbance suppression methods also has been proposed. The control suppresses the unbalance vibration based on the internal model principle. For the unbalance vibration compensation, we clarify the UFCC is considered as repetitive control by using the pole assignment. Moreover, we show the unbalance vibration is further suppressed by using the UFCC which is corresponded to the rotational frequency and the second harmonic.https://www.jstage.jst.go.jp/article/transjsme/82/837/82_15-00607/_pdf/-char/enturbo molecular pumpmagnetic bearingunbalance vibrationpeak-of-gain controlautomatic balancing systemrepetitive controlinternal model principle |
| spellingShingle | Taiki NAKAMURA Shinji WAKUI A relationship between unbalance vibration compensators for five-axes active magnetic bearing systems and vibration suppression utilized its relation Nihon Kikai Gakkai ronbunshu turbo molecular pump magnetic bearing unbalance vibration peak-of-gain control automatic balancing system repetitive control internal model principle |
| title | A relationship between unbalance vibration compensators for five-axes active magnetic bearing systems and vibration suppression utilized its relation |
| title_full | A relationship between unbalance vibration compensators for five-axes active magnetic bearing systems and vibration suppression utilized its relation |
| title_fullStr | A relationship between unbalance vibration compensators for five-axes active magnetic bearing systems and vibration suppression utilized its relation |
| title_full_unstemmed | A relationship between unbalance vibration compensators for five-axes active magnetic bearing systems and vibration suppression utilized its relation |
| title_short | A relationship between unbalance vibration compensators for five-axes active magnetic bearing systems and vibration suppression utilized its relation |
| title_sort | relationship between unbalance vibration compensators for five axes active magnetic bearing systems and vibration suppression utilized its relation |
| topic | turbo molecular pump magnetic bearing unbalance vibration peak-of-gain control automatic balancing system repetitive control internal model principle |
| url | https://www.jstage.jst.go.jp/article/transjsme/82/837/82_15-00607/_pdf/-char/en |
| work_keys_str_mv | AT taikinakamura arelationshipbetweenunbalancevibrationcompensatorsforfiveaxesactivemagneticbearingsystemsandvibrationsuppressionutilizeditsrelation AT shinjiwakui arelationshipbetweenunbalancevibrationcompensatorsforfiveaxesactivemagneticbearingsystemsandvibrationsuppressionutilizeditsrelation AT taikinakamura relationshipbetweenunbalancevibrationcompensatorsforfiveaxesactivemagneticbearingsystemsandvibrationsuppressionutilizeditsrelation AT shinjiwakui relationshipbetweenunbalancevibrationcompensatorsforfiveaxesactivemagneticbearingsystemsandvibrationsuppressionutilizeditsrelation |