Development of model for stability analysis in a balance piston mechanism in turbopump by using active control
This study has developed a model for stability analysis in a balance piston mechanism. The balance piston mechanism is employed to suppress an axial vibration in the turbopump. For its high rotational speed and discharged pressure, many turbopumps use balance piston mechanism to balance axial direct...
| Main Authors: | , , |
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| Format: | Article |
| Language: | Japanese |
| Published: |
The Japan Society of Mechanical Engineers
2019-04-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/85/873/85_18-00445/_pdf/-char/en |
| _version_ | 1811221009692360704 |
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| author | Shota YABUI Hiromichi HIRAKI Tsuyoshi INOUE |
| author_facet | Shota YABUI Hiromichi HIRAKI Tsuyoshi INOUE |
| author_sort | Shota YABUI |
| collection | DOAJ |
| description | This study has developed a model for stability analysis in a balance piston mechanism. The balance piston mechanism is employed to suppress an axial vibration in the turbopump. For its high rotational speed and discharged pressure, many turbopumps use balance piston mechanism to balance axial direction thrust, however sometimes axial vibration occurs because of decreased axial damping. It means that the balance piston mechanism has possibility of occurrence of self-excited vibration due to its dynamics. The occurrence of self-excited vibration depends on the structure of the balance piston mechanism. Therefore, the relationship between the stability and the structure should be predicted in advance. The proposed model using an active control can analyze the relationship concerned with the occurrence of self-excited vibration, namely stability and the structure of the balance piston mechanism. Moreover, the optimal structure for the balance piston mechanism can be decided based on a support vector machine. |
| first_indexed | 2024-04-12T07:51:28Z |
| format | Article |
| id | doaj.art-96933d6a2a4342b9944cd275e6aaae76 |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-12T07:51:28Z |
| publishDate | 2019-04-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-96933d6a2a4342b9944cd275e6aaae762022-12-22T03:41:35ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612019-04-018587318-0044518-0044510.1299/transjsme.18-00445transjsmeDevelopment of model for stability analysis in a balance piston mechanism in turbopump by using active controlShota YABUI0Hiromichi HIRAKI1Tsuyoshi INOUE2Nagoya UniversityNagoya UniversityNagoya UniversityThis study has developed a model for stability analysis in a balance piston mechanism. The balance piston mechanism is employed to suppress an axial vibration in the turbopump. For its high rotational speed and discharged pressure, many turbopumps use balance piston mechanism to balance axial direction thrust, however sometimes axial vibration occurs because of decreased axial damping. It means that the balance piston mechanism has possibility of occurrence of self-excited vibration due to its dynamics. The occurrence of self-excited vibration depends on the structure of the balance piston mechanism. Therefore, the relationship between the stability and the structure should be predicted in advance. The proposed model using an active control can analyze the relationship concerned with the occurrence of self-excited vibration, namely stability and the structure of the balance piston mechanism. Moreover, the optimal structure for the balance piston mechanism can be decided based on a support vector machine.https://www.jstage.jst.go.jp/article/transjsme/85/873/85_18-00445/_pdf/-char/enturbopumpbalance piston mechanismactive controlstability |
| spellingShingle | Shota YABUI Hiromichi HIRAKI Tsuyoshi INOUE Development of model for stability analysis in a balance piston mechanism in turbopump by using active control Nihon Kikai Gakkai ronbunshu turbopump balance piston mechanism active control stability |
| title | Development of model for stability analysis in a balance piston mechanism in turbopump by using active control |
| title_full | Development of model for stability analysis in a balance piston mechanism in turbopump by using active control |
| title_fullStr | Development of model for stability analysis in a balance piston mechanism in turbopump by using active control |
| title_full_unstemmed | Development of model for stability analysis in a balance piston mechanism in turbopump by using active control |
| title_short | Development of model for stability analysis in a balance piston mechanism in turbopump by using active control |
| title_sort | development of model for stability analysis in a balance piston mechanism in turbopump by using active control |
| topic | turbopump balance piston mechanism active control stability |
| url | https://www.jstage.jst.go.jp/article/transjsme/85/873/85_18-00445/_pdf/-char/en |
| work_keys_str_mv | AT shotayabui developmentofmodelforstabilityanalysisinabalancepistonmechanisminturbopumpbyusingactivecontrol AT hiromichihiraki developmentofmodelforstabilityanalysisinabalancepistonmechanisminturbopumpbyusingactivecontrol AT tsuyoshiinoue developmentofmodelforstabilityanalysisinabalancepistonmechanisminturbopumpbyusingactivecontrol |