rotation noise中文什么意思

例句与用法

1. A solution research for china millennium monument rotation noise testing
   中华世纪坛旋转噪音测试方法的研究
2. The cooling fan noise comprises the rotation noise and the turbulent noise
   风扇噪声由旋转噪声和湍流噪声构成。
3. 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
   涡轮增压器的噪声是由于叶片周期性地切割空气产生的旋转噪声和高速气流形成的湍流噪声而形成的，是一种连续性的高频噪声，主要分布在500 ~ 10000hz的频率范围。
4. 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
   为了进一步分析爪式粉碎机的旋转噪声，理论上利用morlet小波变换结合fourier变换对旋转噪声各次谐波成分的振幅和初相位的提取，作了初步探讨。
5. 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型爪式粉碎机为样机，利用现代声学测试分析手段对其工作时定齿盘内、外圈齿与相应动齿作用产生的旋转噪声进行了试验分离研究，从而得出了爪式粉碎机旋转噪声的主要成分源自外圈定齿与其相互作用的动齿产生的噪声，并以此为基础，对定齿盘的齿数、齿形以及内、外圈齿的相对排列位置等结构参数进行了降噪改进设计，通过对比性试验与分析，获得了旋转噪声与上述结构参数间的关系，并取得了负载6 . 7db （ a ）的良好降噪效果。