2011 Fiscal Year Final Research Report
Theoretical study on a measuring method of rail axial stress using vibration modes
| Project/Area Number |
21560499
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Structural engineering/Earthquake engineering/Maintenance management engineering
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| Research Institution | Niigata University |
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Principal Investigator |
ABE Kazuhisa 新潟大学, 自然科学系, 教授 (40175899)
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| Project Period (FY) |
2009 – 2011
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| Keywords | ロングレール / 軸力測定 / 共振周波数 / 定在波モード |
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| Research Abstract |
A measuring method of rail axial stress is studied based on numerical models. For this purpose, dispersion curves are obtained for a periodically supported continuous welded rail. It is found that the pinned-pinned resonance is a suitable mode. Moreover, applicability of the method to curved rails and tracks with a railroad switch is investigated. Through numerical experiments availability of the method for these cases is proved.
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