滾轉頻率 的英文怎麼說
中文拼音 [gǔnzhuǎnbīnlǜ]
滾轉頻率
英文
frequency in roll-
The large c1 cap rolls off the gain of the regulator starting at a low frequency so that high frequency noise isn ' t amplified by the error amp
這個大的電容c1從一個較低的轉折頻率開始滾降，所以高頻噪音沒有被誤差放大器放大。A time - frequency analysis method is presented to solve paper machine press section bearing vibration signals of unstable and complication, applying wavelet function to the unstable signals for faulty bearing according to paper machine press section roll bearing characteristic, and process the vibration signals by means of decomposition and reconstruction, obtaining the vibration signals in different frequency bands, the statistic in frequency domain of relevant frequency bands is served as monitoring feature
摘要針對紙機壓榨部滾動軸承尺寸大響應弱、運轉速度低、低頻信號容易淹沒、調制源多、振動信號非平穩性等特點而導致常規的傅立葉分析診斷故障效果不佳的情況，提出了一種應用小波變換的時頻分析方法，對振動信號進行分解和重構處理，獲得了振動信號在不同的頻段的分量，提取相應特徵頻段重構分量的功率譜的頻域統計值作為特徵參數，從而實現對軸承故障診斷。
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