propagation of vibration 中文意思是什麼

propagation of vibration 解釋
振動傳播
  • propagation : 持續培養
  • of : OF ＝Old French 古法語。
  • vibration : n. 1. 振動，顫動；擺動；【物理學】振動。2. （心的）震顫。3. （思想情緒的）激動。4. 猶豫。adj. -al
  1. Analysis of the acoustic propagation properties under the sea with normal vibration method

    用簡正波方法分析聲波在海水中的傳播特性
  2. The vibration propagation is prodigious influenced by geological condition and the depth of tunnel. at last, linear method is carried to study the attenuation empirical formal of vl

    地質條件、隧道埋深對振動波的傳播影響較大，在離開隧道軸線一定距離存在一個振動放大區，在此區域內地面振動強度有所增大。
  3. Presents the model proposed for analyzing the vibration characteristics of shrouded blades and their calculation method by employing a wave propagation theory and modal synthesis technology coupled with a finite element method from the view point it is possible not only to conduct frequency modulation of the shrouded blades of a gas turbine, but also to utilize the friction effects between them to dissipate energy, thereby attaining the aim of vibration alleviation, as shrouded blades have been widely used in the design of high - speed turbomachinery, such as modern gas turbines and steam turbines, and with the shrouded blades forming an integral whole in a centrifugal force field, the vibration characteristics of the whole ring of blades are different from those of a single isolated blade, and this makes it essential to take into account the integral effect of blade shrouds, concludes from the calculation examples and engineering application that the above approach is valid and correct along with the possibility of considerably reducing the scale of calculation and analysis, and points out it is necessary to take into consideration the coupled effect of the whole ring of blades while the dynamic characteristics of shrouded blades is being analysed

    帶冠葉片不但能調頻，還可以利用葉冠之間的摩擦效應來耗散能量，達到減振的目的.帶冠葉片在離心力場中形成一整體，其整圈葉片振動特性不同於單個孤立葉片，需考慮葉冠的整體效應.利用帶冠葉片系統的循環對稱性，提出了採用波傳播理論和模態綜合技術，結合有限元方法研究燃氣輪機帶冠葉片振動特性的分析模型和計算方法.算例和工程應用證明了該方法是效性的、正確的，並可以大大降低計算分析規模.研究表明帶冠葉片動力特性分析時必須考慮整圈葉片的耦合效應
  4. D. j. mead. free wave propagation in periodically supported infinite beams. journal of sound and vibration 11, 1970 : 181 - 197

    陳正翔，江松青，張維衡.無限長輸液管中結構振動波的傳播.華中理工大學學報， 1997 （ 11 ）
  5. Transverse vibration of an axially moving beam with fixed support by wave propagation

    波傳播法分析兩端固支軸向運動梁的橫向振動
  6. Methods of testing plastics - mechanical properties - longitudinal and shear vibration - wave - propagation method

    塑料試驗方法.第3部分:機械性能.徑向剪切震動.試驗方法323e :波傳播法
  7. Based on the resolving algorithm of continuous - layer method, the time order analyzing curves, acceleration curves and the response spectra of transfer function at the different points of the ground and at the same point on the different ground conditions are gained. it demonstrates that the responses of ground in x, y and z axial directions all change by time, and the obvious wave propagation appears in ground. for different observing points on the same ground condition, at more distant points from the load line, the less swings are found, that is to say, vibration possesses the obvious characteristic of attenuation

    基於分層法的解析演算法，得到了在不同點以及在同一點但不同地質條件下的時程分析曲線、加速度變化曲線和傳遞函數反應譜，結果表明，地基土在x 、 y 、 z三個方向的響應都是隨時間變化的，並且伴隨有明顯的波動現象產生；對于相同地質條件的不同觀察點，距離荷載作用線越遠的地方振幅越小，即振動具有明顯的衰減性。
  8. In this paper, it analyzes the mechanism of automobile noise polytechnic and routes of noise propagation, expoundes the research of active control and passive control of the vibration and noise reduction control technology of automobile. then it puts forward the means of automobile noise reduction in practical application

    從汽車噪聲的產生機理入手，分析了噪聲傳播的途徑，從主動控制與被動控制兩方面對汽車減振降噪技術進行了研究，介紹了實際應用的降噪方法
  9. The general attenuation law of ground vibration caused by heavy tamping is verified by spectrum analysis in this paper. moreover, the relationship between attenuation index and standard penetration number is created through combination analysis of vibration attenuation and surface wave propagation

    在此基礎上，通過面波分析，得出了場地介質衰減指數和表徵場地介質性質的參數?標準貫入擊數之間的關系，給出了表達式的一般形式。
  10. Integrated the monitoring data collected from the scene of blast with the correlative theory of earthquake wave, the blast vibration characteristic of this underground blast engineering and the influence that the blast vibration act on the ground buildings are analyzed. applied the method of duality linearity regression analysis, the propagation attenuational laws of blast earthquake wave in this underground engineering are gained by this software matlab. the analysis results indicat that the attenuational laws of blast earthquake wave are obvious diversity in the condition of difference distances

    結合採集到的大量爆破振動現場實測數據，並應用地震波的相關理論，分析了該地下工程開挖爆破的地面爆破振動特性及爆破振動對地面建（構）築物的影響;應用二元線性回歸分析法，通過matlab軟體計算得出該地下工程開挖爆破地震波的傳播衰減規律;分析結果表明，不同距離下的地面爆破地震波的衰減規律存在明顯的差異，近距離條件下爆破地震波的垂直方向分量衰減最慢，遠距離條件下垂直方向分量衰減最快，遠距離的爆破地震波的垂直方向分量和水平徑向分量的衰減指數均要比近距離相應的爆破地震波衰減指數要大。
  11. In this paper, the propagation, the regulations of vibration attenuation are studied by both in situ experimental and simulation method, based on the observed data of the first and second line in a subway

    本文以某地鐵一號線、二號線振動測試數據為基礎，從實測和數值模擬兩個方面對振動的傳播規律進行了研究。
  12. Propagation of vibration wave in cylindrical shell with sinusoidally perturbed wall

    波紋管殼結構中振動波的傳播
  13. On the basis of the study of the characteristics of diffracted wave produced during the vibration propagation along the fissures, in association with practical example, the paper introduces the features of prospecting the depth of fissures of structural mass by using the seismic method

    該文在研究振動沿裂縫傳播時所產生繞射波的特徵基礎上，結合實例，介紹了運用地震法探測結構體裂縫深度的方法特點。
  14. Abstract : on the basis of the study of the characteristics of diffracted wave produced during the vibration propagation along the fissures, in association with practical example, the paper introduces the features of prospecting the depth of fissures of structural mass by using the seismic method

    文摘:該文在研究振動沿裂縫傳播時所產生繞射波的特徵基礎上，結合實例，介紹了運用地震法探測結構體裂縫深度的方法特點。
  15. 2. based on the fem program and predigestion of train load, the dynamic response of ground soil by railway and subway had been simulated, and the propagation characteristic of vibration in soil was obtained

    2 、基於有限元程序和列車荷載簡化的基礎上，模擬了普通鐵路和地鐵兩種軌道交通荷載作用下地基土的響應，得到了振動在地基土中的傳播特性。
  16. Understanding the mechanism of vibration generation and its propagation rule is the prerequisite to evaluate environmental vibration correctly and appropriately

    要做出正確、適當的環境振動評價，首先要清楚列車運行時振動產生的機理及其傳播規律。
  17. Methods of testing plastics - mechanical properties - tensile vibration - sonic - pulse propagation method

    塑料試驗方法.第3部分:機械性能.拉伸震動.試驗方法323f :聲脈沖傳播法
  18. Abstract to evaluate the effect of the deep hole blast on the villages 200 m away from malanzhuang iron mine, the observation of the blast vibration in malanzhuang iron mine was made ， the propagation law of the blast - caused seismic wave, the seismic wave superimposition of short - delay blasting and the affect of blast vibration on the residents psychology are analyzed. the method and measures for reducing the blast vibration are suggested

    為評價馬蘭莊鐵礦深孔爆破對采場200m外村莊的影響，對馬蘭莊鐵礦爆破震動進行了觀測，分析了爆破地震波傳播規律，微差爆破地震波疊加情況及爆破震動對居民心理的影響等，提出了減少爆破震動的方法和措施。
  19. With the input of a vibration acceleration history of subway train, a full dynamic analysis of soil - pile - structure is carried out. the propagation of vibration wave on the ground and vibration responses of the huge platform and the storied buildings are analyzed. some conclusions are drawn as follows : ( 1 ) with the increase of the distance to the vibration source, vibration intensity of the ground decreases ; ( 2 ) the vibration intensity of the ground in vertical direction is slightly larger than that in horizontal direction ; ( 3 ) with the increase of the distance to the vibration source, the situation that the vibration intensity of each building in horizontal direction is maximum at highest and lowest story whereas minimum at the middle story changes gradually to that decreasing with the height of building ; ( 4 ) in vertical direction, the vibration velocities and accelerations at the end points of each story of a building are the nominal identical, which indicates that the vertical vibration of them is unanimous ; ( 5 ) the vibration intensity in vertical direction of a building is larger than that in horizontal direction ; ( 6 ) increasing of the elasticity of track is an effective way to abate vibration of ground and buildings

    本文以北京地鐵八王墳車輛段地上超大結構（車輛段大平臺及其上的小區樓房）及其地基基礎為研究對象，在研究和分析有關資料的基礎上，用快速拉格朗日有限差分法軟體flac建立了二維數值分析模型，並以列車振動加速度時程作為模型輸入，進行了地基?樁基礎?地上結構的整體動力學分析，分析了地鐵列車運行產生的振動在地面的傳播規律及其對地上結構的影響，得到了如下結論： （ 1 ）隨著與地鐵線路距離的增大，地面的振動強度有減小的趨勢； （ 2 ）地面豎直方向的振動強度較之水平方向的略大； （ 3 ）隨著與振源距離的增大，在水平方向上，地上各幢樓房的振動強度由底層和頂層的最大、中間層的最小逐漸過渡到沿樓層增高而減小； （ 4 ）在豎直方向上，每幢樓各層端點的振動速度、加速度完全相同，表明樓房各層在豎直方向上的運動狀態一致； （ 5 ）各幢樓房豎直方向的振動強度比水平方向的大； （ 6 ）增加軌道彈性是減輕地面和地上建築振動的有效途徑。
  20. For the mechanism of the phenomenon of " local resonance " in a compound ultrasonic vibration system, and explanation is proposed, based on the well - known theory of production and propagation of acoustic wave in a rod or shell

    摘要對超聲復合振動系統中的「局部共振」現象，基於熟知的棒或管中聲波產生和傳播的理論，提出一種機理解釋。
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