2016 Fiscal Year Final Research Report
Study on Hopf bifurcation of Journal bearings and its applications
| Project/Area Number |
26420089
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Design engineering/Machine functional elements/Tribology
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| Research Institution | Kanto Gakuin University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | ジャーナル軸受 |
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| Outline of Final Research Achievements |
In this study, we investigated a hopf bifurcation phenomena of journal bearings and applied it to their stability analysis. Further more, we obtained types and periodic solutions of the bifurcations occured in the bearings, performed the stability analysis with the nonlinearlity of the fluid film. As a result, in a subcritical bifurcation region, the vibration amplitude of the shaft immidiately increased even lower speed of stability limit. On the other hand, in a supercritical bifurcation region, the vibration amplitude of the shaft increased with the periodic solution even higher speed of stability limit.
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| Free Research Field |
トライボロジー
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