2013 Fiscal Year Final Research Report
Development of a Rotor Model Considering the Crack Propagation due to Fatigue and the Method for Vibration Diagnosis and Prognostics of the Crack Growth
| Project/Area Number |
23560257
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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 |
Dynamics/Control
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| Research Institution | Nagoya University |
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Principal Investigator |
INOUE Tsuyoshi 名古屋大学, 工学(系)研究科(研究院), 教授 (70273258)
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| Co-Investigator(Kenkyū-buntansha) |
KAMIYA Keisuke 愛知工業大学, 工学部, 教授 (50242821)
ISHIDA Yukio 名古屋産業研究所, 研究員 (10092991)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 振動解析・試験 / 振動診断 / ロータクラック / 有限要素解析 / ブルージングクラックのモデル化 / 実験的検証 / クラックの位置と深さの影響 / アクティブ診断 |
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| Research Abstract |
The following 3 purposed were achieved.
(1) [Development of the analytical method of the vibration of the cracked rotor] The analytical method of the vibration of the rotor with open crack supported by the asymmetric spring characteristic was developed and verified experimentally. (2) [Development of the model of the crack] The models of the open crack and the breathing crack were developed. Also, the fatigue test for generating the breathing crack were performed for two years to confirm the model. (3) [Development of the numerical method for the vibration of the rotor with breathing crack] The rotor model with breathing crack was constructed, and the numerical method for the vibration at the sub-resonances due to breathing crack was developed.
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