消聲材料 的英文怎麼說

中文拼音 [xiāoshēngcáiliào]
消聲材料 英文
deadener
  • 消 : 動詞1 （消失） disappear; vanish 2 （使消失; 消除） eliminate; dispel; remove 3 （度過; 消遣） pa...
  • 材 : 名詞1 （木料） timber 2 （泛指可以直接製成成品的東西; 材料） material 3 （供寫作或參考的資料） ma...
  • 料 : 名詞1 （材料; 原料） material; stuff 2 （喂牲口用的穀物） feed; fodder 3 （料器） glassware 4 （...
  • 材料 : 1. （原料） material 2. （資料） data; material 3. （適于做某種事的人才） makings; stuff
  1. In this paper matlab and vb are used to build a software which can predict absorption coefficient ' s of the underwater anechoic coatings from these analytical models. finally, some algorithm of the single parameter minimization, nonrestraint nonlinear minimization and restraint minimization in the optimization design theory are studied. the formulas of absorption coefficient of these analytical models are object functions

    本論文利用各種解析模型的聲學設計理論，使用matlab與vb軟體建立了一套水下消聲覆蓋層吸聲系數預報軟體，研究了最優化設計中單參數最小化、無約束非線性最小化和有約束最小化理論的一些演算法，利用現有模型的吸聲系數計算公式作為目標函數，初步優化了一些結構的材料參數。
  2. Silencer sound deadener

    噪音消聲器隔音材料
  3. Another approach is to use more effective sound-deadening insulation arround the engine compartment.

    另一個辦法是在發動機室的周圍採用高效消聲隔音材料。
  4. The types of impedance transition and of composite resonant are now widely used, but the research in this area is not perfect. in this paper analytical means is used to study absorption coefficient ' s prediction models. diversified cavity structures and material parameters are analyzed in detail in order to the anechoic coalings " acoustical design

    現代應用的吸聲層基本是阻抗過渡結構或復合諧振吸聲結構，但我國在這一領域的研究卻不盡如人意，針對水下消聲覆蓋層的吸聲系數預報及聲學設計問題，本論文利用多種解析方法研究聲學模型，並對各種模型的聲腔結構和材料參數做了詳細的分析，為消聲層的聲學設計打下了良好的基礎。
  5. The porous diffusion type silencer is widely used to reduce the air flow noise because of its small volume and high noise attenuating ability. the out case of the silencer plays a very important role in reducing noise. the effect of the hole ' s shape, diameter and the distance between neighboring holes as well as the matchup between the case and the sound absorbing material tube are investigated experimentally. the relation between the out - flow noise and the gas velocity distribution is carefully studied for two different kinds of matchup between the case and the sound absorbing material tube. some useful results are gotten, which may be valuable to the design of the silencer

    多孔擴散型消聲器由於其體積小、消聲性能高而廣泛應用到排氣噪聲的降低上，其外殼對消聲器的消聲性能具有重要作用.本文對此類消聲器外殼的孔型、孔徑和孔距以及外殼同消聲材料的配合方面進行了細致的實驗研究，特別對外殼與消聲材料的配合與其排放噪聲以及外部流場之間的關系進行了探討，得到了一些有用的結論，對消聲器性能的提高具有一定指導意義。
  6. 1 drawer fronts are at least 3 / 4 inch thick with double wall construction, painted prior to assembly and sound deadened

    抽屜面板有3 / 4英寸厚，兩層結構。裝配前各面噴塗完畢，抽屜內有消聲材料。
  7. The porous ceramics is a line of ceramic materials with porosity ; the pores are communicated up to the surface of the ceramic body

    是一類體內含有大量彼此相通並與材料表面貫通的孔道結構的陶瓷材料，可用於過濾與分離、布氣、催化劑載體、潔凈燃燒、消聲材料、隔膜材料等。
  8. It is the propose of this paper to develop a method to reduce the noise level of ma60 apu without more weighting and other infection on airplane. to accomplish this object, a new type of micro perforated absorber is used

    針對新舟60飛機apu本身的結構和環境特性，我們採用一種新興的環保型消聲材料-微穿孔板為上要吸聲結構完成降噪設計。
  9. Standard test method for measuring acoustical and airflow performance of duct liner materials and prefabricated silencers

    測定導管襯里材料和預制消音材料的聲及氣流特性的標準試驗方法
  10. Considering the filter paper as the sound - absorbing material, the filter paper is then taken into account in the analysis of the air cleaner, in which the acoustic characteristics of the filter paper is modeled with the empirical expressions of fibrous materials

    同時，空氣濾清器中的濾紙大多是纖維材料，可以作為吸聲材料來處理，所以在考慮濾紙的情況下分析空氣濾清器的消聲性能，其中以纖維吸聲材料的經驗公式來模擬濾紙的聲學特性。
  11. It is well known that the coupled interactions between the ship hull and the surrounding fluid field of explosion give rise great influence to both the fluid loadings over the structural wetted surface and the responses of the hull. jt is the coupling effect that provides the major difficulties in the underwater explosion induced dynamic responses of the ship structure. the second order doubly asymptotic approximation method ( dda2 ) has been commonly employed in the world to deal with the coupling effect

    本文針對daa方法不適合於分析敷有聲阻抗與水差不多的聲學材料（如玻璃鋼與消聲瓦）的船體結構與水下沖擊波相互作用的局限性，依據聲波的反射和透射原理對二階daa方法的高頻段進行了改進，發展並提出了能夠分析聲學材料流固相互作用的adaa方法（ acousticdaa ） ，拓展了應用范圍，使現有的二階daa方法成為它的一個特例。
  12. The theory of using viscoelastic damping materials to reduce vibraton and niose is illuminated and the viewpoint that viscoelastic damping materials can reduce the brake noise of motor bicycle is advanced

    同時闡明了粘彈阻尼減振降噪原理，提出增加摩擦材料的粘彈阻尼可消除電動車剎車噪聲的觀點。
  13. Abstract : metallic foam or porous materials were developed at the end of the 80 " s and applied to industry at the beginning of the 90 " s. they have excellent physical properties, especially damping characteristis, so they are widely used for vibration insulation, noise elimination, electromagnetic screening and so forth. a description is given of the “ casting and foaming ” method for the fabrication of these metallic foams, and a detailed account of their mechanical and damping properties

    文摘:金屬泡沫或金屬多孔材料是80年代後期國際上迅速發展起來的一種物理功能與結構一體化的新型工程材料.它所具備的多種優異物理性能特別是阻尼性能已引起廣泛關注，並在消聲、減震、分離工程、催化載體、屏蔽防護、吸能緩沖等一些高技術領域獲得了廣泛應用.文章著重介紹了鑄造發泡法製造鋁泡沫材料的技術難點.對金屬泡沫材料的力學性質和阻尼特性進行了詳細介紹.為金屬泡沫材料開發、應用提供基礎知識和信息
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