空泡噪聲 的英文怎麼說
中文拼音 [kōngpāozàoshēng]
空泡噪聲
英文
cavitation erosion-
This paper attentatively studies the theory of traveling bubble cavitation noise emitted from high - speed underwater self - navigator of schiebe body
本文針對回轉體形水下高速自主航行器產生的流動泡類型的空化所輻射的噪聲理論進行了探索性的研究。It was through precise mathematical deduction, data imitation, and analysis to experimental data that this topic is studied. this dissertation is theoretically instructive and practically useful, to a certain extent, to the traveling bubble cavitation noise around a schiebe body
全文通過嚴密的數學推導，模擬和實驗數據分析等方法實現對這一課題的研究，對于回轉體流動泡類型的空化噪聲具有一定的理論指導意義和現實應用價值。Firstly it discusses the value, meaning, background and method of this topic. then it deducts the single - bubble sound pressure, spectrum of sound pressure, power spectrum. according to the real situation of traveling bubble cavitation noise around a schiebe body, the mathematical model of single - bubble collapse is selected, furthermore, the mathematical model of mass traveling bubbles without interference effect is established, and the multi - peaks and rebound phenomenon while bubbles collapse is also analyzed with statistical method
首先論證了本項研究的意義，價值，背景和方法，然後推出了單空泡輻射噪聲聲壓，聲壓譜和功率譜，針對回轉體流動泡空化噪聲的具體情況，選擇了雙指數模型作為單空泡潰滅的數學模型，進一步建立了無干涉條件下的群泡輻射噪聲的數學模型，並用統計的方法分析了空泡潰滅時的多峰值和反彈現象。Noise generation during the simultaneous collapse of two bubbles
雙空泡潰滅及空化噪聲的建模The extend work of my doctoral research is introduced in the part. problems of cavitation noise are investigated with three methods such as theory analysis, numerical simulation and experiment research. mixed boundary element method is put forward to solve acoustics of bubble collapse by author
第二部分：空化噪聲研究該部分工作是作者博士期間工作的延續，對空化噪聲問題從理論分析方面、數值模擬及實驗三方面進行研究，應用作者提出的混合邊界元方法求解了空泡在邊界附近潰滅時的輻射噪聲問題。Cavitation is noisy and easily detected by sonar
空泡現象是有噪聲的並且容易被聲納探測到。When the propeller operates in the spatially non - uniform velocity field behind the ship, the unsteady cavitation on the blades often causes the vibration of ship structure, the propeller noise and the cavitation erosion on the blade
在船尾非均勻流場中工作的螺旋槳，常常由於槳葉上產生了非定常空泡，導致船尾振動和螺旋槳噪聲，致使槳葉表面出現空泡剝蝕。Numerical study of cavity noise
空泡噪聲的數值研究分享友人