油膜渦動 的英文怎麼說
中文拼音 [yóumóguōdòng]
油膜渦動
英文
oil whirl-
This phenomenon is therefore known as "oil whip" or "resonant whirl".
因此，這種現象稱為「油膜振蕩」或「共振渦動。」The vibration signals analytical result of rotating machinery mass imbalance and oil film turbulence fault verified its feasibility and validity
旋轉機械質量不平衡和油膜渦動故障的振動信號分析結果進一步驗證了這種方法的可行性和有效性。This thesis measured the vibration signals of 1 # and 2 # running turbine - generator sets in a generating plant and their vibration signals that are indispensable to the study are gained. firstly, the low frequency faults of machine stand in generator side, rotor unbalance, misalignment, oil whirl, oil whip are diagnosed by fft analysis. secondly, applying wavelet theory to probing the instantaneous abnormal phenomena of the signals and to show their components
首先應用fft分析診斷出1 #和2 #汽輪發電機組存在的發電機側機座松動、轉子失衡、不對中、油膜渦動、油膜振蕩等故障，再運用小波分析探測信號中的瞬態反常現象並展示其成分，比較精確地診斷出了該發電廠運行中的1 #和2 #汽輪發電機組存在的碰摩故障。This phenomenon is therefore known as " oil whip " or " resonant whirl "
因此，這種現象稱為「油膜振蕩」或「共振渦動。 」A new phenomenon is found numerically and experimentally : even if the rotating speed of the rotor is lower, the subharmonic vibration of the rotor - bearing system may be occurred under great disturbance ( unbalance )
通過理論計算和分析發現：提出了即使在較低轉速的情況下，只要外激勵（不平衡量）足夠大，也有可能導致轉子出現油膜渦動或者失穩的現象。Owing to unsteady ship driving power, vibration of ship body, sealing function of seal part and variable stern flow companying with rotating propeller, the unsteady force results to vibration of ship shaft, which makes the oil film of stern journal bearing vibrate
由於船舶動力的非穩定性、船體的振動、尾軸密封裝置的密封作用及螺旋槳的不均勻伴流作用，導致尾軸振動，使得尾軸承潤滑油膜渦動。分享友人