natural oscillation 中文意思是什麼

natural oscillation 解釋
本徵振蕩
  • natural : adj 1 自然界的；關于自然界的。2 天然的；未開墾的；野生的。3 固有的 生來的 天賦的（opp acquired）...
  • oscillation : n. 1. 【物理學】振蕩，擺動，振動；振幅。2. 動搖，猶豫，仿徨。3. 蹣跚。4. 【無線電】發雜音。
  1. Then under the six poses, we get the model parameters of excavator equipment with ribs and without ribs, discuss affects on the oscillation and natural frequencies of the two statuses. based on this, we give some advices on operating and framework improving of the excavator

    然後在上述六種姿態下，得出了加筋板與不加筋板時工作裝置的模態參數，並討論了兩種情況對工作裝置振型與頻率的影響，提出施工操作與結構改進時應注意的一些問題。
  2. Test result is in accord with estimated value for the natural frequency of tank. forced oscillation test results of rolling table show that the theoretical analyses are good

    本論文的研究成果和結論對于u型減搖水艙的設計及試驗搖擺臺的模擬具有重要的指導意義。
  3. The first natural frequency map in working space was drawn, which can be useful for selecting proper working position to avoid resonance or low - order harmonic oscillation

    討論了頻率求解精度、收斂性與單元橫向彈性位移型函數以及單元數量之間的關系。
  4. Firstly, the airfoil ' s classic flutter ( at small attack angle ), stall flutter ( near the static stall angle ) and response ( at large attack angle ) are analyzed. it is found from the numerical results that " lock - in " will occur at certain freestream velocity range near the static stall angle, where the frequency of the vortex will be equal to the natural frequency and the flutter has the characteristic of self - induced oscillation. when the attack angle is far from the static stall angle, the vortex will have its own frequency, which differs from the natural frequency, and the flutter has the characteristic of forced oscillation

    首先研究了二維翼型的古典顫振（小攻角） 、失速顫振（失速攻角）和動力響應問題（大攻角） ，得到以下結論：在靜態失速攻角附近的一定來流速度范圍內，分離渦會發生頻率鎖定現象，分離流的頻率與固有頻率趨于相同，這時的振動呈現自激振動的特點；遠離失速攻角時分離流頻率則擺脫固有頻率的影響，此時的振動具有強迫振動的特點。
  5. In the processing of the numerical simulation of lrv dynamics, knowing from the creepages of irw first, wheel profile has sensitive effect on irw creepages, so the wheel profile should be selected cautiously to optimal the vehicle dynamic behaviors. next, the longitudinally creep force is disappeared, so the self - oscillation vvill do n ' t occur and the bogie is stability. while the natural steering action of vheelset is lost which means that some sort of steering action is necessary to keep the wheelset appropriately aligned on a curve

    在輕軌車輛動力學數字模擬計算中，通過對獨立旋轉車輪蠕滑率的分析知，車輪踏面外形對其影響十分敏感，適當的選取獨立旋轉車輪踏面的外形可以優化車輛的動力學性能；採用獨立旋轉車輪，縱向蠕滑力不復存在，自激振動不會發生，轉向架也就穩定；但同時，常規輪對具有的自動導向功能西南交通大學碩士研究生學位論文第11頁也失去了。
  6. Abstract : a two - pole axially - laminated anisotropic ( ala ) rotor reluctance motor, with a high saliency ratio, is de - veloped. based on it, the performance characte istics of the motors are investigated with open - loop operation. it is proposed that an intensive oscillation occurs at low speed, corresponding to the frequency supplied a little greater than the natural one of the system

    文摘:研製了一臺高凸極比的兩極ala轉子磁阻同步電動機，實驗研究了電機的開環運行特性，研究結果表明電機開環運行時存在一個比較嚴重的低頻振蕩，這個振蕩發生在電機電源頻率略大於電機的自然頻率后的某一頻段，且會導致電機失去同步
  7. In this paper, the corresponding software is programmed employing the matlab. the structure parameters of the air - volume, and the pressure oscillation at the exit of the pipe can be calculated as soon as the preliminary data have been given this research project is funded from the national natural science foundation of china. ( 598740337 )

    本文研究了空氣室對管道系統壓力脈動的影響，提出了消減或增強壓力脈動的空氣室設計方法，利用matlab編制出相應的計算軟體，只須輸入管道系統的相關數據，便可計算出空氣室的結構參數和管道出口端處的壓力幅值。
  8. Moreover, the driving system is an important part of cmf. it supplies the driving force for flow tubes, and makes flow tubes oscillate at their natural frequency and the fixed amplitude. at the same time the oscillation frequency of the driving system can change with the natural frequency of flow tubes

    同時，驅動系統是科里奧利質量流量計的重要組成部分之一，它為流量管提供驅動力，使流量管以其固有頻率和穩定的振幅振動，並且能夠跟隨流量管固有頻率的變化而變化。
  9. However, from the definition of oscillation, the oscillation of system ( 1 ) is only an interval behavior. therefore, it is natural to think that we can study the oscillatory behavior of system ( 1 ) only on a sequence of subiiitervals of [ t _ ( 0 ), ), which weakens the restriction to p ( t ), q ( t ) to a great extent. in chapter 2

    但另一方面，按照振動性的定義，系統（ 1 ）的振動性又僅僅是一個區間性質，因此，很自然地想到，只要在[ t _ 0 ， ）的一系列子區間上來研究系統（ 1 ）的振動性，這樣就大大降低了對p （ t ） ， q （ t ）的限制。
  10. The torsional interaction from the electrical couplings among the generating sets is presented and the influence of the natural torsional frequency of the generating sets on the torsional oscillation characteristics is described. the torsional dynamics between identical parallel turbine - generators are deduced as well as that between non - identical parallel turbine - generators. then the basic principle of equivalent simplification of generating units for different operational condition is summarized

    （ 2 ）介紹了多機電力系統機組間電氣耦合對軸系扭振特性的影響，以及機組自然頻率與機組扭振相互作用的關系，並對復雜系統中並列運行的相同發電機和不同發電機間的扭振相互作用進行了分析，歸納了不同運行條件下機組等值簡化的基本原則。
  11. Abstract : on the basis of the space structure model, the behavio r of natural oscillation of open pile - supported beam - slab wharf and its dynamic response to wave forces were calculated and analyzed. it is pointed out that dyna mic analysis should be made when an open pile - supported wharf is designed

    文摘:本文在空間結構模型的基礎上，對開敞式樁基梁板碼頭結構的自振特性及其在波浪力作用下的動力響應進行了計算分析，指出開敞式樁基碼頭設計應進行動力分析。
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