Theoretical study on a measuring method of rail axial stress using vibration modes
Project/Area Number |
21560499
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Structural engineering/Earthquake engineering/Maintenance management engineering
|
Research Institution | Niigata University |
Principal Investigator |
ABE Kazuhisa 新潟大学, 自然科学系, 教授 (40175899)
|
Project Period (FY) |
2009 – 2011
|
Project Status |
Completed (Fiscal Year 2011)
|
Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
|
Keywords | ロングレール / 軸力測定 / 共振周波数 / 定在波モード / 分岐器介在レール / 加振応答解析 / 温度変形 / 曲線レール / 波動分散特性 / 温度応力 / 分散特性 / Floquet定理 / 無限軌道 |
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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Report
(4 results)
Research Products
(15 results)