滾動平行尺 的英文怎麼說

中文拼音 [gǔndòngpínghángchǐ]
滾動平行尺 英文
roller rule
  • : Ⅰ動詞1 (翻轉; 滾動) roll; turn round; trundle 2 (走開; 離開) get away; beat it 3 (液體沸騰)...
  • : Ⅰ形容詞1 (沒有高低凹凸 不頃斜) flat; level; even; smooth 2 (高度相同; 不相上下) on the same l...
  • : 行Ⅰ名詞1 (行列) line; row 2 (排行) seniority among brothers and sisters:你行幾? 我行三。where...
  • : 尺名詞[音樂] (中國民族音樂音階上的一級 樂譜上用做記音符號 參看「工尺」) a note of the scale in ...
  • 滾動 : roll; trundle; rolling; volution; run; rolling motion滾動半徑 rolling radius; 滾動傳感器 roll sen...
  1. 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軸承寸大響應弱、運轉速度低、低頻信號容易淹沒、調制源多、振信號非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,對振信號進分解和重構處理,獲得了振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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