旋轉噪聲 的英文怎麼說

中文拼音 [xuánzhuǎnzàoshēng]
旋轉噪聲 英文
rotation noise
  • 旋 : 旋Ⅰ動詞1 （旋轉） whirl 2 （用車床切削或用刀子轉著圈地削） turn sth on a lathe; lathe; pare Ⅱ名詞...
  • 轉 : 轉構詞成分。
  • 噪 : 動詞1. （蟲或鳥叫） chirp 2. （大聲叫嚷） make noise; make an uproar; clamour
  • 旋轉 : revolve; gyrate; rotate; spin ; revolution; revolvement; rotation; circumgyration; circulation
  1. The noise of the fan is mainly consist of circumrotatory noise and backset noise based on the theoretical analysis

    首先基於風機噪聲理論的分析確定了影響風機噪聲源的主要因素是旋轉噪聲和渦流噪聲。
  2. The experiment datum indicates that the feature parameters of mrf model have the rotative invariability for the texture image with small angle rotation

    研究了小角度的旋轉和圖像噪聲污染對馬爾可夫隨機場模型的紋理特徵的影響。
  3. Pumps - rotodynamic pumps - circulation pumps having a rated power input not exceeding 200 w for heating installations and domestic hot water installations - noise test code vibro - acoustics for measuring structure and fluid - borne noise

    泵.旋轉動力泵.家用熱水置裝和供熱裝置用的額定功率輸入不超過200w的循環泵.測量結構和流體導聲的噪音試驗編碼聲振搗
  4. The submarine noise detected by sonar consists of two parts : propeller - generated hydro - dynamical noise, which can be greatly reduced by improving the submarine rear shape ; radiated noise from the submarine structure excited by the centrifugal forces ( moments ) of rotatory machine, which is more complicated and influenced by many factors

    聲納所探測的潛艇噪聲包括兩部分，一是螺旋槳運轉帶來的水動力噪聲，二是潛艇主機工作時產生的不平衡力和力矩引起潛艇結構振動，帶動流場振動從而輻射噪聲。通過改進潛艇尾部線型設計，已將水動力噪聲降到比較低的程度，而結構噪聲則復雜得多，與許多因素有關。
  5. 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於葉片周期性地切割空氣產生的旋轉噪聲和高速氣流形成的湍流噪聲而形成的，是一種連續性的高頻噪聲，主要分佈在500 ~ 10000hz的頻率范圍。
  6. This matching algorithm can reduce differences during translation, rotation, and zooming under the noisy or distorted condition. to do this, firstly, select optimum matching - origin - pair in the polar coordinates, then the number of matching pairs can be acquired

    本演算法能夠減小指紋平移、旋轉誤差，在有噪聲和形變情況下，先優選出極坐標原點對，進而求出匹配對的數目。
  7. First, the thesis introduces the definitions and the attributes of the higher - order statistics. it is insensitive to additive gaussian noise ( white or colored ), which is what we base on to doa problems. then two doa estimation algorithms based on higher - order statistics are presented, one is that forming cumulant matrix pencil used in esprit to estimate doa problems, the other is spectrum estimation method for doa estimation based on the eigenstructure analysis of the fourth - order cumulant, and comparing the effects of the estimation to conventional covariance - based doa algorithms "

    論文首先對高階統計量的定義和性質作了介紹，特別指出了高階統計量對加性高斯噪聲（白色或有色）不敏感，這是我們利用它進行波達方向估計的理論依據，然後文中提出了兩種基於高階統計量的波達方向估計方法，一種是利用子空間旋轉不變技術構造四階累積量矩陣進行估計的方法，另一種是基於四階累積量陣特徵分解的空間譜估計測向方法，並將它們的估計效果與傳統協方差方法的效果進行比較。
  8. Template matching technology is the key of target detection system. matching namely that sensor captures two breadths of or many breadths of images aiming at in space versus identity scenery in different time and different image - forming condition, or according to known mode look for homologous mode in another breadth of image

    目標檢測系統受許多不可預知的條件影響，如光照、噪聲、旋轉及移動、遮掩物、隨機紋理等，使圖像識別變得困難，進而影響了目標檢測的穩定性。
  9. The rotational converter could not satisfy with the requirement anymore. compared with the rotational converter, asi is better in the efficiency, power density, reliability and electrical quality

    與傳統的旋轉變流機相比， asi具有效率高、功率密度高、無噪聲、可靠性高、壽命長、供電品質好、維護方便等優點。
  10. 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型爪式粉碎機為樣機，利用現代聲學測試分析手段對其工作時定齒盤內、外圈齒與相應動齒作用產生的旋轉噪聲進行了試驗分離研究，從而得出了爪式粉碎機旋轉噪聲的主要成分源自外圈定齒與其相互作用的動齒產生的噪聲，並以此為基礎，對定齒盤的齒數、齒形以及內、外圈齒的相對排列位置等結構參數進行了降噪改進設計，通過對比性試驗與分析，獲得了旋轉噪聲與上述結構參數間的關系，並取得了負載6 . 7db （ a ）的良好降噪效果。
  11. This paper focused on such problems as mixing models of sources of rotation machines ( including vibratory and acoustical sources ) and their waveform restoral

    摘要重點討論了旋轉機械源（包括振動激勵源與噪聲源）混合模式及源波形恢復問題。
  12. To improve efficiency of reconstruction, the method of image collection that collected objects on the revolving flat roof is pegged and transform angle and distance is designed, and relation in sampling images. yawp of images is removed by dealing with intensity correlation and smoothness

    為了提高重建效率，本文採用將重建對象固定在旋轉平臺上，通過角度和距離變換進行圖像采樣的方法，加強了采樣圖像之間的聯系;通過灰度處理、平滑化等預處理來消除噪聲，為后續的特徵提取和特徵匹配打下了良好的基礎。
  13. This article introduces the fundamental theory and the characteristics of the radial truck, points out the distinct advantages in high adherance, curve negotiating, low wear and low noise

    與傳統的旋轉電機轉向架相比，具有非摩擦高粘著、小半徑曲線、低磨耗、低噪聲、小型化等優點，適合現代化城市快速小曲線、陡坡道、立體化軌道交通的需要。
  14. The cooling fan noise comprises the rotation noise and the turbulent noise

    風扇噪聲由旋轉噪聲和湍流噪聲構成。
  15. The former one is a product of the pressure pulsation resulting from the fan blade periodically cutting the air, with the blade passing frequency as its base frequency and accompanied by higher harmonics. the wide - band turbulent noise is formed when the rotating fan forces the surrounding air to produce turbulent throw - outs and results in gas thickening and thinning processes

    旋轉噪聲是由於風扇的葉片周期性地切割空氣，引起空氣的壓力脈動產生的，以葉片通過頻率為基頻，並伴有高次諧波。湍流噪聲是由於風扇運動導致的周圍空氣發生湍流脫體，使空氣發生擾動，形成氣體的壓縮與稀疏過程而形成的，是一個寬頻帶噪聲。
  16. On the basis of relationship between meshing rigidity and noise and taking the modification, vibration deduction and noise dropping as the aims, the tooth profile modification was carried out on spur bevel gar by the use of revolving involute curve

    摘要根據嚙合剛度和噪聲之間的關系，以修形減振降噪為目的，用旋轉漸開線曲線對直齒錐齒輪進行齒廓修形。
  17. 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

    為了進一步分析爪式粉碎機的旋轉噪聲，理論上利用morlet小波變換結合fourier變換對旋轉噪聲各次諧波成分的振幅和初相位的提取，作了初步探討。
  18. Rotating electrical machines - part 9 : noise limits

    旋轉電機.第9部分:噪聲限值
  19. In chapter 5, the helicopter as350b2 rotor are taken as numerical examples in order to validate the model developed in chapter 4. finally, chapter 6 summarizes the current research, some advices for future research on this subject is given

    應用該模型，第五章以法國宇航公司生產的as350b2 「小松鼠」直升機為算例，計算了前飛狀態下孤立尾槳的旋轉噪聲，驗證了計算模型和計算方法的正確性。
  20. 3. we put forward a combine algorithm for predicting the aerodynamically generated noise using different methods mentioned above, and developed a computer code named " nospre " to predict acoustic noise generated by rotors 4

    Nospre集成了三種噪聲預測方法，可採用固定或旋轉的聲源面來預測跨音速旋翼懸停和前飛時的氣動噪聲。
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