direction of vibration 中文意思是什麼

direction of vibration 解釋
振動方向
  • direction : n. 1. 方位，方向；范圍，方面。2. 〈pl. 〉 指揮，指導；管理。3. 〈常 pl. 〉指示，命令，吩咐；用法說明。4. 導演；（樂隊）指揮。5. 寄發地址。6. 趨向，傾向。
  • 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. The plunger is forced to undergo a simple harmonic vibration parallel to the direction of the tube.

    活塞在平行於長管的方向被迫作合諧擺動。
  2. A series of seismographs are arranged with their direction of vibration along the generators of a cone with vertical axis.

    一組地震儀的振動方向是與具有垂直軸的錐體拾震器方向一致的。
  3. While two ( or more ) electromagnetic waves of the same frequency, same direction of vibration, same phase or constant phase difference superpose in space, the amplitude of composite wave is vector sum of the amplitude of each wave

    由兩個（或兩個以上）頻率、振動方向相同、相位相同或相位差恆定的電磁波在空間疊加時，合成波振幅為各個波的振幅的矢量和。
  4. Presently, cfst arch bridges develop in the direction of large - span and lightweight style, accordingly, investigators and devisers should increasingly attach more importance to their dynamic behaviour, and some typical dynamic matter of bridges, such as seismic response, wind induced vibration, coupled dynamic vibration between bridge and vehicle should not be ignored

    目前，鋼管混凝土拱橋正朝大跨、輕型的方向發展，因此，該類型橋梁的動力特性也日益引起重視，象地震、風振、車振等橋梁的典型動力問題也是該類橋梁所無法迴避的。
  5. Efficient to lose fat, adopt micro - computer technology to make the vibration strongly effect on the abdomen, which part with most fat of the body. inner - desighed strong motor effect on the organism directly. unique auto change direction mode, makes the full dimension vibration of the organism

    迴旋塑身腰帶運用微電腦技術，將強效振動裝置直接作用於脂肪最為集中的腹背部，內置的強有力的電動機直接作用於肌體，產品獨有的大幅度的水平移動自動變換方向運動模式，使肌體大范圍全方位共振，同時加快身體血液循環，微電腦控製程序可自動逐步增強產品運動力度，使用過程中自動轉換運動方向。
  6. Fuzzy monitoring control of phase error for vibration systemwith twin - motor drives rotating in the same direction

    同向回轉雙機傳動振動系統相位差的模糊監督控制
  7. Then, taking into account the effect of the compression of the approach roadway and the differential slope of the bridge slab, the author analyzes the dynamic response of man - vehicle - road system when the vehicle approaches and leaves the bridge by means of laplace transform, the curve of man ' s acceleration versus time, the vertical force between the vehicle and road versus time, the man ' s maximum transient vibration value and the maximum force between the vehicle and road are got, and the program about the calculating progress above are edited. based on the analysis above, the influence on the maximum transient vibration value of some parameters about the vehicle and road such as the movement direction and speed and weight of the vehicle, the differential slope of the bridge slab and the length of the approach slab, are studied, and some conclusion are given

    分上橋和下橋兩種情況，考慮車路耦合和橋面沉降坡差的影響，對車輛通過設和不設搭板的路橋過渡段時「人?車?路」系統的相互作用用拉普拉斯變換法進行了動力響應分析，得到了人的加速度及路面對車的垂直作用力隨時間的變化曲線、人的加速度最大瞬態振動值和路面對車的最大作用力，分析了車輛的行進方向、速度和載重，橋面沉降坡差和搭板長度等車和路各參數對計算結果的影響，並編制了相應的計算程序。
  8. Simulation and analysis of a shearer vibration in the vertical direction

    採煤機沿鉛垂方向振動的模擬與分析
  9. The attenuation indexes of vertical direction components and level radial components of blast earthquake wave in the condition of far range are all larger than the one in the condition of close range. based on upwards analysises, relevant control ways and safety defending technology of blast vibration are given from the aspects of blast equipments, blast parameters, landform physiognomy, blast methods. and taking the practical data from blast scene as the sample, the blast shockproofness are forecasted by the feedforward nerve network model based on the prior knowledge of blast shockproofness, the regress analysis method and experience formula method, which supply the technology gist for

    並且，以爆破現場的實測數據為樣本，採用基於爆破震動強度先驗知識的前饋網路神經模型、回歸分析法及經驗公式法分別對爆破震動強度進行了預測研究，為爆破施工參數的確定提供了技術依據，確保整個爆破工程順利安全進行，並對這三種方法的預測結果進行了對比分析;對比分析表明，三種預測方法計算出來的結果精度相差甚大，從檢驗樣本值與預測結果值之間的相對誤差可以看出，人工神經網路法預測的結果較其他方法更接近於實際值，回歸分析預測法的精度又要高於經驗公式預測法。
  10. The motion system synchronizes with the computer generated image to simulate the realistic feeling of accelerationdeceleration speed, vibration in motion and wind pressure on getting by train coming from the opposite direction etc. with the feature of the motion system, the new cab simulator will provide a more realistic environment and feeling to the driver trainee during the cab simulator training

    新列車模擬駕駛室除了有較為流線的外型，同時是全港第一架設有三度空間動感系統裝置的模擬駕駛室。動感系統與電腦影像一致配合，能模仿列車在加速減速，震動及遇到高風速等情況，令司機在模擬駕駛室內受訓時能感受到一個較真實的駕駛環境。
  11. By means of structural optimization, not only the weight of structures can be reduced, but also the strength, stiffness, vibration behavior, buckling stability, and other performances of structures can be improved efficiently. structural optimization is an important research direction in the computational mechanics and modern design field

    結構優化設計不僅可以降低結構重量和材料成本，而且能夠改進結構的強度、剛度、振動特性、屈曲穩定性等性能，是計算力學以及現代設計製造領域的重要研究方向。
  12. The results indicate that the vibration of the pipeline on direction of x y z is reduced effectively, and the eccentricity vibration of the pole electricity is also reduced effectively

    計算結果表明，這一方法是能有效地降低管系x ， y ， z方向的振動，能夠很有效地降低閥桿電機的偏心振動。
  13. At last the results obtained are compared with those of t - beams, which shows : 1 ) the base frequency of t - beam and box girder bridge is different not only in the value but also in vibration direction

    通過與此無關t型梁自振特性的結果進行比較，得出了一些重要結論：從t型梁到整體箱梁，梁的基頻發生了改變。
  14. Dynamic characteristic of orthogonal vierendeel dome was discussed, and the influence on vibration characteristic acted by difference including rise - to - span ratio, shell thickness, section area and constraint condition was studied. vibration shapes - separation - spectra - method and time - history method were adopted to analyze the dynamic response of orthogonal vierendeel dome under common earthquake. by comparing dynamic response in different direction and dimension seismic excitation, the value and distribution of dynamic internal force were obtained

    本文研究了正交空腹網殼結構的動力特性，分析了矢跨比、網殼厚度、腹桿截面和支座約束條件對結構自振特性的影響；採用反應譜法和時間歷程法對正交空腹網殼的地震響應作了詳細的分析，分別研究了結構在不同方向地震激勵下和在不同維數地震激勵下動力響應的數值大小和分佈規律，並比較了兩種方法的結果差異，對抗震設計具有參考價值。
  15. In operation, the transverse vibration of wire takes place and it can trace the cutting direction

    加工中電極絲可產生橫向振動，且振動方向始終與切割方向一致。
  16. Mathematical model of structural optimization has been set according to the data got from dynamic analysis. the thickness of plates, diameter and thickness of tubes, elastic and damp coefficient of front and back vibration absorber have been optimized in modified feasible direction method. contrast with original motorcycle has been successively done

    根據動態分析得出的數據，建立結構優化的數學模型，使用改進的可行方向法，對車架和整車的板厚、管徑及其壁厚、前後減振器的彈性系數和阻尼系數等進行尋優。
  17. The optimization design of the crank - connect rod mechanism was carried out. collocating the mass reasonably, adjusting the ratio ( ( 1 - f ) / f ) of the long axis to the short axis of the ellipse track, adjusting the direction of long axis to the direction where the internal - combustion engine was not sensitive to the stimulating force. all the above contribute to the max reduction of the vibration

    對單缸內燃機的曲柄滑塊機構進行優化設計，合理的布置加配質量的大小和方向，對軌跡橢圓的長短軸比率（ 1 - f ） / f進行調整，將長軸方向調整到內燃機對激振力不敏感的方向，從而使不平衡力對內燃機所產生的振動最小，以某一具體的單缸內燃機為例進行了計算分析。
  18. That is : the optical fibers which are to be tested will wind the same circle according to different radius or will wind the different optical fiber ' s circles according to the same radius, making the direction of incident ray side vibration as parameter, we have done the specific experiments and theory analysis to winding waste of quartz system, both refrac tion optical fibers and elastic - optic effect of optical fiber

    即把待測光纖以不同的半徑纏繞成相同的光纖圈和以相同的半徑下纏繞成不同的光纖圈，以入射線偏振光方向為參數，對單模石英系雙折射光纖的彎曲損耗與光纖的彈光效應進行了的具體的實驗和理論分析。
  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. Firstly, the properties of vibration transducers and their calibration methods are given, and the significance of establishing ultra - low - frequency standard vibration calibration system is pointed out. secondly, the present research status on standard vibration metrology at home and abroad is surveyed. thirdly, some problems in the ultra - low - frequency standard vibration metrology and the future direction are pointed out

    首先介紹了振動傳感器的特點及其校準方法，指出建立超低頻標準振動計量的重要性；然後回顧了國內外標準振動計量的研究現狀；接著分析了超低頻標準振動計量存在的問題並指出了研究方向；最後介紹本論文的研究內容。
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