水下聲源 的英文怎麼說

中文拼音 [shuǐxiàshēngyuán]
水下聲源 英文
underwater sound source
  • 水 : 名詞1 （由兩個氫原子和一個氧原子結合而成的液體） water 2 （河流） river 3 （指江、河、湖、海、洋...
  • 下 : 下動詞1. （用在動詞后,表示由高處到低處） 2. （用在動詞后, 表示有空間, 能容納） 3. （用在動詞后, 表示動作的完成或結果）
  • 源 : 名詞1. （水流起頭的地方） source （of a river）; fountainhead 2. （來源） source; cause 3. （姓氏） a surname
  1. Therefore, this paper studies three kindsvalves such like bufferfly valve, brake valve and ball valve, with the numerical simulation method by cfx which is often used to simulate the fluid. by the simulation of three kinds of valves, we can kown dynamic characteristic of them. in this paper, i not only simulate for three kinds of valves, but also analyse cause of flow - noise and give respectively mathematical model of main noise sources in piping system such as pupm and valve

    本文通過cfx軟體，用數值模擬的方法，對海水管路系統中常見的三種閥門（蝶閥、閘閥、球閥）流動特性及噪聲進行了模擬分析，闡明閥門噪聲產生的機理，建立了泵和閥門等噪聲源的數學模型，並對管路系統中涉及到的邊界條件做了適當的處理，分析了閥門下游的渦聲。
  2. To validate the scheme, an air - filled, submerged in water spherical shell excited by a sound source located at the center of the sphere was calculated

    為驗證數學模型的正確性，對點聲源激勵下無界水域中充氣球殼進行了數值計算。
  3. Firstly, the ray method and normal mode method are used to calculate the acoustic field in underwater with the source in the air

    首先，用射線方法和簡正波方法對空氣中的聲源在水下產生的聲場進行了分析。
  4. This thesis researches the design and implementation of underwater high - speed multi - channel data acquisition and processing system. there are some contents to be presented including designing a set of noise signal generator ; design and implementation of underwater nosie high - speed multi - channel data acquisition and processing system ; programming the windows 2000 device driver cl pci and usb with ddk2000 ; programming user interface of the control of the acquisition and display of the image with vc + + 6. 0

    本論文對高速多通道採集和處理系統的設計和實現進行了研究，論文的主要研究工作包括：設計一套模擬噪聲源；根據水下目標輻射噪聲的檢測和識別要求進行了高速多通道採集和處理系統的設計和實現研究；完成了相應的pci 、 usbwindows2000驅動程序的開發；使用vc + + 6 . 0編寫了採集控制和波形顯示界面。
  5. 765 [ / attach ] crystals were aligned to follow the patters of sacred geometry - spiraling pyramidal energies

    依照神聖的幾何學的急速的祈禱聲排列的水晶- -成螺旋狀下降的金字塔形的能源。
  6. The noise of such structures root in the shell vibration that drove by the inner engine, when coupled with the liquid medium, the noise will affect the performance of the vessels badly

    這些航行器的結構噪聲來源於內部機械激勵殼體振動，並帶動周圍流體介質振動產生聲輻射，它嚴重影響了水下航行器的整體性能。
  7. Basic function : heat source is anti - blast infrared - tube made of microcrystal quartz ;, continuosly variable mattress tilt, radiant head can two - directory rotate on horizon, x - ray cassette shelf under infant bed ; high - bright erdiate lamp detect lightness ; advanced microprocessor control temperature system, auto - heated mode, separately display set temperature and real temperature ; 4sound - light alarm capacity : set - off, fan, sensor, over temp.

    基本配置：採用了防爆型微晶石英紅外管作輻射熱源，嬰兒床斜傾角度有級可調，輻射頭可在水平位置上雙向隨意轉動，嬰兒床下內設有x光暗盒架，檢查照明採用高照度射燈，溫度控制系統採用先進的計算機控制，自動加熱方式，設定溫度和實際溫度分屏顯示，有四種聲光報警功能（溫度上下偏差、傳感器、斷電、超溫） 。
  8. Basic function : heat source is anti - blast infrared - tube made of microcrystal quartz ; continuously variable mattress tilt, radiant head can two - directory rotate on horizon, x - ray cassette shelf under infant bed ; high - bright eradiate lamp detect lightness ; advanced microprocessor control temperature system, autoheated mode, separately display set temperature and real temperature ; 4 sound - light alarm capacity ; set - off, sensor, over temp

    基本配置：採用了防爆型微晶石英紅外管作輻射熱源，嬰兒床傾斜度有級可調，輻射頭可在水平位置上雙向隨意轉動，嬰兒床下內設有x光暗盒架，檢查照明採用高照度射燈，溫度控制系統採用先進的計算機控制，自動加熱方式，設定溫度和實際溫度分屏顯示，有四種聲光報警功能（溫度上下偏差、傳感器、斷電、超溫） 。
  9. The thermocline causes omittable effect on the intensity decaying speed. but the site of hydrophone affects the reverberation intensity when hydrophone lies upper than the thermocline, the reverberation intensity is greater than when there is no thermocline, and vice versa. at last, the average intensity of reverberation for bistatic case had been deduced

    發射聲源與水聽器在聲速躍變層上方時，水聽器接收到的混響強度比無聲速梯度時接收到的混響強度大；發射聲源與水聽器在聲速躍變層下方時，水聽器接收到的混響強度比無聲速梯度時接收到的混響強度小。
  10. The shortcomings of the two methods are analyzed. and then a fast field program ( ffp ) is developed and used to calculate and analyze the underwater acoustic field with the source in the air. some important results have been obtained

    接著分析了以上兩種方法的缺點，並重點提出了用基於傳播矩陣的ffp方法，對空氣中聲源在水下產生的聲場進行了計算和分析，得到了許多有意義的結果。
  11. The characteristic of excitation of the acoustic field is investigated for sources with various frequencies. the effects of an isotropic medium, inclined formation of different azimuth, horizontal or vertical fracture and its width or density on the propagation of the acoustic field are investigated. the fluid in borehole is also investigated

    研究了聲源在不同頻率下的聲場激發特性，考察了井外介質為均勻介質、存在不同傾角的地層界面、存在水平和垂直裂縫以及裂縫寬度和密度等對井內外聲場傳播的影響以及井眼流體對井孔聲場的影響。
分享友人
分享到 Line

分享到臉書