2011 Fiscal Year Final Research Report
Material Aging Diagnosis System using Magnetic sensing and Simulation
| Project/Area Number |
21560448
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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 |
Measurement engineering
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| Research Institution | Kobe University |
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Principal Investigator |
KOJIMA Fumio 神戸大学, 自然科学系先端融合研究環重点研究部, 教授 (70234763)
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| Co-Investigator(Kenkyū-buntansha) |
KOBAYASHI Futoshi 神戸大学, 大学院・システム情報学研究科, 准教授 (50314042)
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| Co-Investigator(Renkei-kenkyūsha) |
KIKUCI Hiroaki 岩手大学, 工学部, 准教授 (30344617)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 計測工学 / 信号解析 / 非破壊検査 / 磁性 / システム工学 / 状態監視 |
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| Research Abstract |
It is well known that the magnetism of strong magnetic materials is extremely sensitive with respect to the change of microstructure and to the residual-stress variation. In this study, a non-destructiveness evaluation system for aging properties was developed based on magnetic measurements of the ferromagnetic materials. The coercive force and Barkhausen noise(BHN) were evaluated using carbon steel sample specimens of stress loading. The characteristic curves were then derived by the measured magnetic properties. A fuzzy expert system related to magnetic properties was consequently developed with the decision rules of material aging process. The efficacy and validity of the proposed system were shown in the experimental works
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