振動文摘 的英文怎麼說

中文拼音 [zhèndòngwénzhāi]
振動文摘 英文
shock and vibration digest
  • 振 : 動詞1. （搖動; 揮動） shake; flap; wield 2. （奮起） brace up; rise with force and spirit
  • 文 : Ⅰ名詞1 （字） character; script; writing 2 （文字） language 3 （文章） literary composition; wri...
  • 摘 : 動詞1 （取下） pick; pluck; strip; take off 2 （選取） select; extract 3 （摘借） borrow money wh...
  • 振動 : vibrate; vibration; vibrance; vibrancy; vibra; vibes; shaking; rumble; jitter; chatter; sway; jar...
  • 文摘 : abstract; digest文摘索引 abstract and indexing
  1. Abstract : considering the second nearest - neighbor interaction and cubic, quartic anharmonic interactions simultaneously, we employ the multiple scales method combined with a quasidiscreteness approximation to calculate the lattice vibration. it is shown that the kind of nonlinear chain exhibits envelope soliton, envelope kink and envelope antikink soliton. these results can also be used to explain the experimental phenomena that the kink amplitude of the self - localized structure is determined only by the intrinsic properties of its lattices

    文摘:同時考慮次近鄰諧振相互作用和三次方、四次方非諧相互作用，利用多重尺度結合準離散近似方法去計算晶格振動行為，發現一維非線性點陣中存在包絡孤子及正扭結型包絡孤子、反扭結型包絡孤子，解釋了自局域結構的幅度只取決于點陣中的固有參數的實驗現象
  2. Abstract : brief introduction and canalization of the vibration and noise outoftolerance problems arisen during the prototype test for series yax, and the suggestion for the prevention to them are given in t his paper

    文摘:本文簡要介紹了yax系列樣機試制中遇到的振動、噪聲超差問題，進行了原因分析，給出了擬採取的措施。
  3. Applying an active vibration control method for the reduction of the lateral vibration of directional antenna is investigated

    摘要本文提出以電流回授主動振動控制方式，抑制指向性天線之側向振動。
  4. Abstract : a conclusion has been proved indelail that only if the na tural frequency k of a symmetric structure is nota duplicate root, the vibra tion mode of the strusture must be symmetrical orantisymmetrical. this conclusio n is advantageous to simplify the structural dynamicanalysis and pratically usef ul

    文摘:給出了有關對稱結構體系的動力特性的一個結論：對稱的結構振動體系，對應于任一非重根的自振頻率，其主振型必定是對稱的或反對稱的.並給出了詳細的證明.應用這個結論，有利於對稱結構動力分析的簡化，具有實用價值
  5. Abstract : according to sedimentary characteristics of the carboniferous taiyuan formation in feicheng coal field, including lithology, size distribution, sedimenta ry structure, geochemistry and paleontology etc., the carboniferous paleoenvironme nt of this area is divided into carbonate open platform and tidal flat environme nt. it is recognized that the taiyuan formation is formed in the epicontinental c oast which is dominated by the tidal. the peat flat is the important paleoenviron ment for coal accumulation. the tidal channel destroys the coal bed. the pulsative vibration of the crust is the major factor which controls the evolution of the sedimentary environment and the coal accumulation

    文摘:根據肥城煤田石炭系太原組的巖性、粒度分佈、沉積構造、地球化學及古生物等沉積特徵，將該區晚石炭世古地理劃分為碳酸鹽開闊臺地和潮坪環境，認為太原組形成於潮汐作用為主的陸表海海岸，泥炭坪是成煤的重要古地理環境，潮渠對煤層有一定的破壞作用，地殼的脈動性振蕩作用是控制沉積環境演化和聚煤作用的主要因素。
  6. Abstract : making use of test data and some instances presented in test, it could be apprvoed that partial resonant vibrations of acoustics system occurred in ultrasonic hoing. meanwhile, it was pointed out in this paper that flexible pole - oilstone holder could be considered as a single vibrations system when designing acoustics subsystem, as pioneers a new in designing acoustics system of ultrasonic honing

    文摘:經試驗證實了超聲珩磨聲學系統中存在著局部共振現象，指出「撓性桿-油石座」振動子系統設計時可作為一個單獨的振動體系進行考慮，為超聲珩磨聲學系統設計開辟了一條新的思路。
  7. Abstract : rased on practice conditions, both the dynamic characterization of motor vehicle under random forces exciting of the ground state and methods by using damping vibration control are investigated in this paper

    文摘:研究車輛行駛過程動力特性，結合實際條件，給出了車輛彈簧阻尼減振器減振效果的阻尼調置方法。
  8. Abstract : in this paper, the reason arisen from the noise of the bx1 ac arc welder is analysed. for the main factor, moving core viberating, the measure to reduce the noise is advanced from three hands, inside and outside slide. the other measure is also advanced for the second factor

    文摘:對bx1系列交流弧焊機噪聲產生的原因進行了分析，針對產生噪聲的主要原因? ?動鐵芯的振動，從三個方面、內外滑道分別提出了具體的降低措施，並對次要原因也提出了具體降低措施。
  9. Abstract : in the light of the problems of the air balance system of model lcj1250 chain drive pumping unit, it is proposed to change the air balance with counterweight balance, and three criteria for the modification is put forward : ( 1 ) ensuring the reliability of the unit with smooth operation, low noise and long life ; ( 2 ) cutting down the production cost and using less component parts as possible ; ( 3 ) carrying out modification without such main technical parameters as stroke, pumping speed and maximum polished rod load

    文摘:針對lcj1250氣平衡式鏈條抽油機存在氣平衡故障率高和現場維修困難等問題，提出將氣平衡改造成工作可靠的重力平衡的方案，並確定了改造的三個原則：一是保證整機的可靠性，使抽油機運轉平穩，振動噪音小，壽命長；二是力求降低生產成本，減少零部件製造，盡可能選用原來的通用件，捨去平衡缸和空氣包等氣平衡附件，在原往返架主體上懸掛一個配重箱；三是力求不改變沖程、沖次及最大懸點載荷等主要技術參數。
  10. Abstract : in view of the vibration of hydraulically driven bar feeders for cnc lathes in oper ation, this paper analyzed the causes for vibration generation in details by case study and pre sentedthe corresponding solutions for each case

    文摘:詳細分析了數控車床液壓棒料送料器工作時產生振動的各種原因，並提出了相應的解決措施。
  11. The influences of stator ' s teeth on vibrating modal of the linear standing wave usm are discussed in this paper, in which eigenfrequency and wave - shape are analyzed while the position and geometry dimension of stator ' s teeth are changed, and it can give some advice on design for standing wave linear ultrasonic motor

    摘要本文對一類直線型駐波超聲電機振子的振動模態進行了系統的分析，討論了定子齒的位置、幾何尺寸對直線型超聲電機的固有頻率、振型的影響，為該類駐波型直線超聲電機的設計提供了理論依據。
  12. According to the theory of light transmission, we derived the expression of rotation angle as a function of the dielectric constant conductivity of er fluid, and ( the angle between the electric vector of linearly polarized light and electric field ) from maxwell ' s equations and fresnel reflection, on the condition of several appropriate approximations and assumptions

    進而導出了非均相結構電流變液在外電場與光場交互作用下旋光角與（入射線偏振光振動方向與外加電場方向間夾角）及參數（為外加電場e 、分散顆粒介電常數、體積分數、絕緣油介電常數、位置矢量（ ? ）等量的函數）的西北工業大學應用物理系碩士學位論文摘要理論表達式。
  13. Abstract : with a view of time - varying characteristic of the v ibration signal measured on reciprocating machinery and a brief introduction to the wavelet analysis and a nonlinear wavelet denoising theory, the paper makes an approach, by taking an triplex pump widely used in heavy machinery as an exa mple, on the waveform feature extraction which reflects the various conditions o f reciprocating machinery with nonlinear wavelet denoising analysis method

    文摘:針對往復機械振動信號的非平穩時變特點，本文在簡述小波分析及非線性小波消噪理論的基礎上，以重型機械使用的三缸泵為例，研究了用非線性小波消噪方法提取往復機械狀態下的波形特性。
  14. Abstract : the paper probes into the vibration characeristics and methodes of reducing vibration according to vibration theorg and law, and are expounded and proved by calculation of exemple

    文摘:根據振動理論和規律，對機械繫統的振動特性和減振方法作了探討，並以實例計算加以了論證。
  15. Abstract : it is expounded the composition and detection method of the diagnostic system of dynamic failure for locomotive running gear. also discussed are the key technologies as ultrasonic resonance demodulation, identification of locomotive type & speed, message sampling of sensors tracing running mechanism and three dimensional diagnosis, as well as the feasibility test

    文摘:闡述了機車走行部動態故障診斷系統的組成及檢測方法，介紹了超聲共振解調、車型車速識別、多個傳感器跟蹤運動機械的信息采樣、三維診斷等關鍵技術及其可行性試驗情況。
  16. In this paper, combined with directional blasting of cooling tower engineering, some safety problems such as flying rock, blasting vibration, morphology vibration and blasting dust are introduced and analyzed, and more safeguard technologies are advise

    摘要文章結合冷卻塔定向爆破拆除的實例，分別介紹了由爆破引起的爆破飛石、爆破振動、塌落振動、碎碴飛濺和爆破煙塵等爆破安全間題，並對這些問題進行了分析，提出進一步提高爆破安全的技術措施。
  17. Abstract : we have studied the spontaneous emission from a three - level atom with an external - driving field in a photonic crystal. as a result of quantum interference and photon localization, the population in the two upper levels displays quasi - oscillatory oroscillatory behavior. this depends on the initial atomic state and the relative positions of the two upper levels from the forbidden gap. the intensity and the phase of the external field can affect spontaneous emission from the atom. the properties are different from a three - level atom either in vacuum or in aphotonic crystal without an external driving field

    文摘:討論了在雙光子驅動場作用下，三能級原子在光子晶體中的自發發射問題.由於量子干涉和光的局域化作用，兩個上能級中的占據數將具有周期振蕩或準周期振蕩的性質，這不僅依賴于兩個上能級與禁帶的相對位置，同時也依賴于原子的初始狀態，而且還與驅動場的強度、驅動場的入射位相有關.這些性質既與真空中帶有驅動場的原子的自發發射性質不同，也有別于無驅動場作用下光子晶體中三能級原子的自發發射性質
  18. Abstract : guiding accuracy of casting mould depends on structure and oscillation parameters, such as elastic deformation of guiding leaf - springs, play of bearings between linkages, stroke and frequency of mould oscillation, etc. in this paper, these factors are studied by means of kinetic and dynamic analysis of oscillating mechanism

    文摘:通過對連鑄機結晶器振動機構的運動學和動力學分析，研究了導向板彈簧的彈性變形、連桿軸承間隙等結構參數及振幅、振動頻率等運動參數對結晶器仿弧誤差的影響。
  19. Abstract : according to analyzing equipment ' s vibration. the failure of screw pump was reaso ned. and the old packing seal was converted into the combination of oil seal, laby rinth and packing seal, in result, the leakage of the pump had been solved comp letely

    文摘:利用設備的振動分析對螺桿泵密封失效原因作診斷，並將原有的填料密封改造為橡膠油封、迷宮密封及填料密封的組合形式，徹底解決了泄漏問題。
  20. Abstract : this paper introduced the resources and developing situation s of pineapple leaf fiber, and the experimental research on the fiber extractio n mechanism, the production technology and the complete set of processing equipm ent were conducted

    文摘:介紹了菠蘿葉纖維的資源和開發利用情況，進行了刮麻機理、生產工藝和配套設備的試驗研究，提出了將菠蘿葉在逐步打擊和振動的雙重作用下使纖維和麻渣分離的原理。
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