137 オープンクラックを有する回転軸系の有限要素モデリング : 固有振動数と応答曲線の実験的検証

概要

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Continuous operation of rotating machinery with a rotor crack is a risk condition since the rotor crack grows rapidly and may fail causing a catastrophic accident. This paper improves the concise and accurate finite element model of the rotating shaft with an open crack. The natural frequencies in the rotating condition and the resonance curves of the double-frequency vibration due to crack are investigated. Furthermore, the natural frequencies and the resonance curves of the experimental system are measured. By comparing both the theoretical and experimental results, the accuracy of the developed simple finite element model of the rotating shaft with an open crack and the theoretical analysis method discussed in this paper are confirmed.
一般社団法人日本機械学会の論文
2009-08-03