- 旋轉(zhuǎn)雜色
- 旋轉(zhuǎn)噪聲
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rotation noise中文什么意思
例句與用法
- A solution research for china millennium monument rotation noise testing
中華世紀(jì)壇旋轉(zhuǎn)噪音測(cè)試方法的研究 - The cooling fan noise comprises the rotation noise and the turbulent noise
風(fēng)扇噪聲由旋轉(zhuǎn)噪聲和湍流噪聲構(gòu)成。 - The turbocharger noise is formed by the rotation noise resulting from the periodical air cutting of the fan blade and the turbulent noise of high - speed gas flows . as a continuous high frequency noise , it mainly falls between the 500 to 10 000 hz range
渦輪增壓器的噪聲是由于葉片周期性地切割空氣產(chǎn)生的旋轉(zhuǎn)噪聲和高速氣流形成的湍流噪聲而形成的，是一種連續(xù)性的高頻噪聲，主要分布在500 ~ 10000hz的頻率范圍。 - In order to analyze the rotation noise further , a new method for measuring the amplitude and phase of each harmonic component of periodic signal mixtures is established based on the morlet transform and fourier transform in theory , which will provide scientific warranty for reducing noise of disk mill
為了進(jìn)一步分析爪式粉碎機(jī)的旋轉(zhuǎn)噪聲，理論上利用morlet小波變換結(jié)合fourier變換對(duì)旋轉(zhuǎn)噪聲各次諧波成分的振幅和初相位的提取，作了初步探討。 - Taking the ffc ? 23a disk mill as a specimen model , the rotation noise generated from the interaction between fixed claws distributed on the outer and inner circle of the fixed claw plate and the corresponding moving claws has been separated in an experimental study by the modern analytic method of acoustic . thereby , a conclusion that the principal component of rotation noise in disk mill comes from the interaction between the fixed claws on the outer circle and the corresponding moving claws has been reached . in accordance with the above , modified noise reduction design for the structural parameters such as the number of claws on the fixed claw plate , shape of claws and the relative positions of the claws arranged on the outer circle and inner circle has been carried out
本文以ffc ? 23a型爪式粉碎機(jī)為樣機(jī)，利用現(xiàn)代聲學(xué)測(cè)試分析手段對(duì)其工作時(shí)定齒盤內(nèi)、外圈齒與相應(yīng)動(dòng)齒作用產(chǎn)生的旋轉(zhuǎn)噪聲進(jìn)行了試驗(yàn)分離研究，從而得出了爪式粉碎機(jī)旋轉(zhuǎn)噪聲的主要成分源自外圈定齒與其相互作用的動(dòng)齒產(chǎn)生的噪聲，并以此為基礎(chǔ)，對(duì)定齒盤的齒數(shù)、齒形以及內(nèi)、外圈齒的相對(duì)排列位置等結(jié)構(gòu)參數(shù)進(jìn)行了降噪改進(jìn)設(shè)計(jì)，通過(guò)對(duì)比性試驗(yàn)與分析，獲得了旋轉(zhuǎn)噪聲與上述結(jié)構(gòu)參數(shù)間的關(guān)系，并取得了負(fù)載6 . 7db （ a ）的良好降噪效果。