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無法分析的的英文

  • unanalyzable

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  • The conversion wizard reports parsing errors on . aspx files that could not be parsed
    轉(zhuǎn)換向?qū)?font color="#cc0033">無法分析的. aspx文件報告分析錯誤。
  • These will result in wrong diagnosis and some superfluous frequency composition , which will puzzle the detection of mechanical vibration . fault feature extracting plays very important role in gearbox fault diagnosing process
    無論哪種局限性的出現(xiàn),都會在機械振動信號的解調(diào)譜中出現(xiàn)無法分析的頻率成分,給分析帶來很大的困難,有時甚至引起誤診斷。
  • From theoretical analysis , we know the existing demodulation methods have limitations as following : one is that the subtraction of the two signals frequencies will display as the result of demodulation when we demodulate two time - domain adding signals without modulating information ( fault information ) ; the other one is that aliasing phenomenon will occur as a result of getting absolute value , detection or square in the process of generalized demodulation analysis , such phenomenon will result in some superfluous frequency composition on the frequency spectrum , which will puzzle the detec tion of mechanical vibration . if the sampling frequency is selected from a suitable range , the aliasing phenomenon will be avoided ; the last one is that aliasing frequencies will be produced in zoom demodulation analysis because this algorithm cannot employ digital low - pass filtering to avert the folding frequencies of higher harmonics in the process of zoom sub - sampling
    現(xiàn)有的解調(diào)分析方法存在以下三種局限性:將不包括調(diào)制信息(故障信息)的兩時域相加信號,也以其頻率之差作為解調(diào)信號而解出;廣義檢波濾波解調(diào)分析中,由于取絕對值、檢波或平方過程可能產(chǎn)生混頻效應,在解調(diào)譜中表現(xiàn)為無法分析的頻率成分,并由此推導出避免這種混頻現(xiàn)象的采樣頻率的選取范圍,從根本上避免此類誤診斷的產(chǎn)生;幾種細化解調(diào)分析新算法中,因為無法在細化分析的選抽時進行數(shù)字低通濾波,有可能會出現(xiàn)調(diào)制頻率的高次諧波成分發(fā)生頻率混疊而反折到低頻部分的現(xiàn)象。
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