acoustic noise 中文意思是什麼

acoustic noise 解釋
聲干擾
  • acoustic : adj. 1. 聽覺的；聲學的。2. 助聽的；傳音的。3. 原聲的，不經過電子設備傳聲的。adv. -tically 在聽覺上；在聲學上。
  • noise : n 1 聲音，聲響。2 叫喊；嘈雜聲，噪音；喧鬧聲；吵鬧，騷動，騷擾。3 〈古語〉謠言，風聲。4 〈美國〉...
  1. Introducing the theory and application of boundary element method on the sound radiation, giving the process of solving vibration noise radiation problem using boundary element analysis software ; presenting the coupling theory and the combination analysis of finite element method and boundary element method, and doing relevant analysis based on close drum shell ; programming the noise data simulation program using the numerical calculation software, simulating the acoustic and pressure data of a key point in the transient response acoustic field of the close drum shell, realizing the audibility of the noise, using the virtual reality tools to simulate the vibration noise of the drum shell ; combining the finite element method and boundary element method to analyze the vibration noise radiation of some gear box, and completing the whole simulation process of the vibration noise of the gear box

    綜合介紹了邊界元法在聲輻射問題上的理論及應用；並給出了運用邊界元法分析軟體求解振動聲輻射問題的過程。闡述了有限元法和邊界元法的耦合理論及組合分析方法，並以封閉鼓形薄殼為分析對象進行了相應的分析。利用數字計算軟體編制了噪聲數據模擬程序，並模擬了通過組合方法分析封閉鼓形薄殼瞬態響應聲場而獲得一關鍵點的聲壓數據，實現聲音的可聽化，隨后通過虛擬現實工具實現了該情形下橢球殼振動噪聲的虛擬模擬。
  2. The distance between the acoustic-emission source and the receiving transducer, and the background noise level are primary factors in selecting a particular frequency band.

    聲發射源與接收訊號傳感器間的距離以及環境噪聲的電平是選擇頻帶的主要依據。
  3. Active structure acoustic control ( asac ) is the leading field in the area of vibration and noise control. based on the most current academic and experiment results of domestic and overseas in asac, modern robust control theory ( h _ control theory ) and modern hydrokinetics theory 、 solid dynamics theory are used to build the control model of asac in this thesis. and the h _ control experimental system is build based on modern signal processing technology and compter technology

    本文在國內外最新的asac理論研究與實驗成果的基礎上，首次將現代魯棒控制理論（ h _控制理論）與現代流體動力學、固體動力學理論相結合，建立了結構振動聲輻射主動控制模型，提出了設計魯棒h _控制器的新方法，並採用現代信號處理技術、計算機技術建立了結構振動聲輻射魯棒h _控制實驗裝置，進行了實驗研究。
  4. Surface transverse wave has the 1. 6 high frequency than rayleigh type surface acoustic wave ( using the same technology the frequency of devices of stw has about 1. 6 high frequency than rayleigh type surface acoustic wave ). the paper introduces the theory, design parament, technology and result expeiment of surface acoustic wave ( includes rayleigh surface acoustic wave and surface transverse wave, simple stw ) with low insertion loss, high q and researches the high frequency, low phase noise oscillator with 1ghz stw resonator as frequency element. and describes measurement method and finally experimantal result of the low phase noise surface acoustic wave oscillator

    本文研究了以低損耗、高q值聲表面波（其中包括聲表面瑞利波- - rayleighsurfaceacousticwave ，和聲表面橫波等）諧振器的工作原理、設計參數、製作工藝及其實驗結果，並且研究了以1ghzstw諧振器為頻控元件的高頻率、低相位噪聲聲表面波振蕩器，以及低相位噪聲聲表面波振蕩器的測試方法和最終的測試結果。
  5. Acoustics. acoustic methods for the outdoor estimation of the noise due to land transport infrastructures. typology of the estimation methods

    聲學.由於公路運輸基礎設施產生的室外噪音評估用聲學法.評估方法的類型學
  6. It introduced designs of acoustic structure of high sound insulation testing room, and applications in the field of sound - absorption, which provide reference for the professional personnel engaging noise control and architectural acoustics

    摘要介紹了高隔聲測試室的聲學結構設計及在吸聲領域的應用，以供噪聲控制和建築聲學專業人員參考。
  7. The basic characteristics of the current data network are point - to - point, connectless, doing one ' s endeavor, no quality of service, etc. these characteristics do not meet the requirement of real - time services, therefore, the realization of voip need support of the some key technology. these technologies includes : speech sound coding and data compression, real - time transmission and control, mute compression and multicast, acoustic - echo cancellation and comfort noise generator, dynamic monitor and guarantee of quality of network service, as well as, the compatible of different network and different protocol with each other

    但現有的數據網路的基本特性：點對點的、無連接的、盡力而為的、沒有服務質量保證等特性並不適合與實時的業務要求，因此voip的實現需要一些關鍵技術的支持，這些技術包括：語音編碼和壓縮技術、實時傳輸和控制技術、組播技術、靜音壓縮和舒適噪聲生成技術、回聲消除技術、網路服務質量的動態監測和保證技術、以及不同的網路、不同的協議之間的互連互通等等。
  8. Vehicle noise prediction and panel acoustic contribution analysis

    車內噪聲預測與面板聲學貢獻度分析
  9. The the room volume is 1512 m3, bottom acoustic noise is lower than 18db, and the testing system is from b k company of danmark

    消聲室容積1512立方米，本底噪聲低於18分貝，採用丹麥b k公司的檢測儀器。
  10. Equipment engineering - acoustic noise emitted by telecommunication quipment

    設備工程.電信設備產生的噪聲
  11. Cinematography - background acoustic noise levels in the theatres, review rooms and dubbing rooms

    電影.影院審片室及混錄棚的背景噪聲級
  12. Wind turbine generator systems - part 11 : acoustic noise measurement techniques

    風輪發電機系統.第11部分:噪音測量技術
  13. Wind turbine generator systems - acoustic noise measurement techniques

    風力渦輪發電機系統.噪音測量技術
  14. The acoustic noise generated by the rotate point source, uh - 1h rotor in hover and ah - l / ols in forward flight were calculated, and the computed results from several methods were compared with each other and with the experimental data

    採用旋轉點源、 uh - 1h懸停旋翼、 ah - 1 / ols前飛旋翼作為算例，對所採用的各種噪聲預測方法進行了比較。
  15. Combined with the self - designed project of shanghai ground transportation center - wind tunnel center, we bring out some methods to study and control aero - acoustic noise accompanying with wind tunnel experiments, these conclude some successful experiences of foreign countries and we also developed some self - designed ways to supervise our experiments, and especially we point out some difficulties during the experiments

    結合上海地面交通工具風洞中心的自主設計項目，提出了風洞設計中氣動聲學噪聲的研究和控制路線，既包括了國外一些成功的經驗，也提到了自行設計試驗的方案的思路，以及自主開發所需要涉及的一些難點。
  16. Wind turbine generator systems - part 11 : acoustic noise measurement techniques iec 61400 - 11 : 2002 ; german version en 61400 - 11 : 2003

    風力渦輪機發電機系統.第11部分:噪音測量技術
  17. Acoustic noise specification

    聲音噪聲要求
  18. Equipment engineering - acoustic noise emitted by telecommunications equipment ; english version ets 300753 : 1997

    設備工程.電信設備產生的噪聲
  19. Significant torque ripple, vibration and acoustic noise are the main drawbacks of the srm to achieve higher performance

    開關磁阻電動機的最重要的缺點就是轉矩脈動，它直接影響著驅動系統的輸出性能。
  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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