振動疊加 的英文怎麼說

中文拼音 [zhèndòngdiějiā]
振動疊加 英文
superposition of vibration
  • 振 : 動詞1. （搖動; 揮動） shake; flap; wield 2. （奮起） brace up; rise with force and spirit
  • 振動 : vibrate; vibration; vibrance; vibrancy; vibra; vibes; shaking; rumble; jitter; chatter; sway; jar...
  1. The vibrations which constitute a wave in a gas superposed on the random thermal motion.

    氣體中形成波的振動疊加在這種無規則熱運動上。
  2. 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。
  3. The beam - on - dynamic - winkler - foundation ( bdwf ) model was utilized to determine the lateral dynamic response of a pile with finite length in a viscoelastic soil. an analytical solution was obtained in the time domain for the vibration of a pile under a laterally cyclic force applied at the pile head. based on the solution, the transient response of the pile loaded by semi - sine force was acquired with superposition principle

    首先，基於動力winkler模型（ bdwf ）對粘彈性地基中有限長樁的水平動力響應問題進行求解，得到了單樁在樁頂受水平簡諧荷載作用下的時域解析解，並在此基礎上通過疊加原理得到了半正弦激振條件下的瞬態解析解。
  4. In order to make the sensitivity of 2 - demension accelerometer along the two main arbors almost identical, symmetric four - beam structure that embeds a double - sides interdigitated differential capacitive with puckered beam in two directions was used as sensitive component. in addition, the differential capacitive accelerometer fabricated by bulky silicon micromechanical technique has high sensitivity, wide measurement scope, less nonlinear error, and simple converting circuit. then, the structure parameters of the sensitive component were calculated and stimulated, which results in a set of the optimized structure design parameters, main fabrication procedure and several key fabrication technology

    為使二維振動傳感器在兩主軸方向的靈敏度大致相同，敏感元件採用高度對稱的四梁結構，其中每個軸向上均採用帶折疊梁的雙側叉指電容結構，採用體硅微機械工藝製作的高深寬比叉指電容式敏感元件，具有高靈敏度、寬量程、非線性誤差小、外圍電路簡單等優點;對設計的敏感元件結構參數進行了計算，並利用有限元法進行了模擬分析，根據模擬結果得出了優化參數;在確定敏感結構的基礎上，研究了敏感元件採用體硅微機械加工工藝製作的工藝流程和關鍵工藝技術;對敏感晶元內部的c - v介面電路進行了原理設計與分析，利用差動測量技術得到由振動引起的微小電容變化量，經c - v介面電路進行相位調制處理，然後通過解調輸出與加速度成正比的電壓信號。
  5. Finite element method ( fem ) was used to simulate thermal and vibration problems in stacked - die csp assembly. finite element models and apdl programes were built in ansys to conduct thermal, thermal - mechanical and vibration analysis. the aim of these researches were trying to find some possible reasons and trends which affect the reliability of stacked csp / bga assembly and give some useful suggestions for the packaging design

    本論文正是針對以上情況，以採用引線鍵合工藝的三維疊層csp / bga封裝（裸晶元疊裝）為研究對象，在有限元分析軟體ansys中建立相關的有限元模型，編制了相應的apdl參數化分析程序，進行了溫度場分析、熱循環加載下的snpb合金焊點疲勞分析和實裝pcb板的振動模態分析。
  6. The damping coefficient of the laminated composites is more than twice that of ly12 aluminum alloy. furthermore, the damping coefficient of laminated composite is enhanced with the increasing of thickness of fiber / resin layer. the vibration damping mechanism is analyzed

    研究了不同纖維樹脂層厚度時疊層復合材料的阻尼性能，發現隨中間層厚度的增加，疊層復合材料的振動衰減系數增加，並分析其振動衰減機制。
  7. ( 三 ) under the dynamic load of the explosion, the numeric analysis has been done and achieve the rule as follow : ( 1 ) when the frequency of vibration is 0. 3hz, the acceleration of the slopes top gets the maximum ; so 0. 3hz is believed the natural frequency of the slope as a whole ; ( 2 ) the vibration of explosion can been magnified because of the condition of the landform, when the relative altitude is up to 45m, the acceleration of horizon gets the maximum ; when the relative altitude is up to 100m, the absolute value of acceleration and the deformation of horizon is larger than that in the bottom of the slope ; ( 3 ) in the period of forced vibration, at the top of the slope, the acceleration of horizon become larger and larger ; at the middle part of the slope, it becomes smaller ; ( 4 ) when the explosion velocity of is much little, the shallow part destruction is the primary deformation of the slope

    （三）採用模態疊加法針對爆破動力作用，進行邊坡的動力響應分析，得出了以下結論： （ 1 ）振動頻率為0 . 3hz時，坡面頂部水平向加速度峰值最大；綜合考慮，可認為該邊坡的自振頻率為0 . 3hz左右； （ 2 ）地形對爆破地振動存在放大作用，研究剖面的坡面，水平向加速度及位移在地形相對高差45米左右最大，而後隨相對高差的增高而減小，相對高差為100米時，水平向位移及加速度絕對值均大於坡腳； （ 3 ）強迫振動段，水平向加速度值隨時間變化的規律為：坡頂節點總的變化趨勢是越來越大，而坡體中部節點的變化趨勢是越來越小； （ 4 ）當爆破振速較小時，變形破壞的形式表現為坡頂表面滑塌型。
  8. The mechanism is divided into finite elements and researched by ked method. then kinematic differential equations are established for each element and the general kinematic differential equations are built through assembling all the elements. a closed numerical method based on the mode superposition principle is employed to solve the equations

    將四連桿機構劃分為多個有限單元，建立其單元運動微分方程和系統運動微分方程，運用實振型疊加法的閉式演算法求出機構在一個運動周期中各個廣義坐標方向的彈性位移，同時求出機構不同位置時各構件上動應力分佈情況、機構前四階振型變化情況。
  9. In terms of the complex mode superposition method, the motion equations of general multiple degrees of freedom ( mdof ) discrete system can be transferred into the combination of many complex oscillators

    摘要應用復振型分解方法，將非比例阻尼線性體系在地震作用下的動力方程求解問題轉化為若干個廣義復振子的求解與疊加問題。
  10. In this thesis, the internal force and transfiguration of the double reticulated dome under different load combination are studied ; the linear and nonlinear analysis are separately performed ; compare the difference between space girder element and space truss element ; at last analyze the dynamical response under seismic action. the horizontal seismic response of double layer oblate lattice shell is analyzed by using step - by - step integration procedure. the effect of some parameters such as exterior load, different support conditions and damping ratio on the dynamic internal forces and dynamic properties is studied

    本文旨在研究雙層球狀網殼結構在各種載荷組合下的內力和變形，分別進行了線性和非線性靜力分析；進行了空間梁單元和空間桿單元兩種計算模型的比較；最後進行了在地震荷載作用下的動力反應分析，動力分析中用子空間迭代法得出了這類空間結構的動力特性，用時程法中的振型疊加法分析了結構在水平地震作用下的動態響應規律。
  11. Finally, the mode superposition method is used to calculate the displacement and stress responses of the blade

    採用振型疊加法計算了葉片的動態響應和動應力。
  12. It spends much time to make an analysis of dynamic response and sensitivities with modal superposition method, and it reduces the efficiency of dynamic optimization design via this method

    在動力優化過程中，採用常規的振型疊加法作一次動力響應及其敏度分析會耗費大量計算時間，這樣大大降低了動力優化設計的求解效率。
  13. Based on frequency - spectrum - transformation, this algorithm first changes acceleration spectrum into displacement spectrum, then calculates its amplitude, angular frequency and initial angle related to every displacement spectrum, finally sums up all the displacement components and forms the time course of the measured vibration

    該方法採用頻譜轉換法，首先將加速度譜轉換成位移譜，再計算出位移譜中每個頻率分量對應的幅值、圓頻率和初相角，最後對各位移分量進行疊加得到振動位移的時間歷程。
  14. Unfortunately, there is a big difference between the vibration of water turbo - generators and other rotating machines. the nature of the coupling arised by hydro -. mechanical and electrical factors, no unique relationship between the specific faults and associated vibration features and additionally the super - imposing of various vibrations at a certain position of a unit make it difficult to ascribe the severity of vibration in accurate words

    然而，水輪發電機組的振動與其他旋轉機械的振動有很大不同，水力、機械、電氣三方面因素引起的振動形成的耦聯、振動故障與振動特徵的非一一對應性及多種振動在某部位的疊加，形成了水輪發電機組振動的復雜性，很難用準確的語言來描述振動的程度及振動是否存在，這就給振動原因的分析帶來一定困難。
  15. The wave frequency has close relationship with the train ’ s speed. the train ’ s speed is more rapid, the frequency of wave is also higher, and the wavelength is shorter. if the distance between two wheels on the same rail is equal to

    如果兩個車輪之間的距離等於半波長的奇數倍，那麼當這兩個車輪所產生的振動波傳播到鋼軌上同一點的時候，所引起的振動在該點的相位正好相反，振動疊加后的和位移將為零。
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