振蕩不穩定性 的英文怎麼說

中文拼音 [zhèndàngbùwěndìngxìng]
振蕩不穩定性 英文
oscillatory instability
  • 振 : 動詞1. （搖動; 揮動） shake; flap; wield 2. （奮起） brace up; rise with force and spirit
  • 蕩 : Ⅰ動詞1 （搖動; 擺動） swing; sway; wave 2 （無事走來走去; 閑逛） loaf; wander; roam; loiter; go a...
  • 不 : 名詞[書面語] （剁物所用的木墩） a block of wood
  • 穩 : 形容詞1 （穩定; 穩當） steady; stable; firm 2 （穩重） steady; staid; sedate 3 （穩妥） sure; rel...
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  • 穩定性 : antiwhip
  • 穩定 : 1 （使穩定） stabilize; steady 2 （穩固安定） stable; steady 3 （物質的性能不易改變的作用） stabi...
  1. Analysis and tests show that by using slope compensation, the open - loop instability, sub - harmonic oscillation, non - ideal closed - loop response and noise etc. when duly cycle above 50 %, can be reduced or eliminated

    理論分析與試驗表明，通過引入斜坡補償可以抑制或消除占空比超過5 %時的開環不穩定性、次諧波振蕩傾向、不理想的閉環響應、噪聲等。
  2. The shearing layer is carried by the jet and the eddy is formed because of the instability and selective amplification of shearing layer which will propagate to the downstream. as the eddy impacts the impinging wall, a wave of pressure disturbance with certain frequency is induced. this wave then propagates to the upstream with high speed, and results in the overlap and amplification of the waves when the frequencies of them are close with each other

    當前噴嘴流束中的不穩定擾動波在穿過腔內的剪切層時，剪切層對其有選擇放大作用，形成渦環結構，剪切流動中渦環與碰撞壁撞擊，在碰撞區域產生壓力擾動波並向上游反射，在上游剪切層分離處誘發新的擾動的產生，當新擾動與原擾動匹配時，射流上游就被不斷地受到周期性激勵，腔內就產生流體自激振蕩並在後噴嘴出口形成脈沖射流。
  3. These research also approve some inherent phenomena in nonlinear systems such as the interleaving of stability region and instability region, the parameter sensibility of the instable modes, divergence after a relatively long time of chaotic swings ( transient chaos ), a cascade of period double bifurcations to chaos and etc. these phenomena are of great importance to both theoretical research and engineering practice

    研究還證實了一些非線性系統所特有的現象，如穩定域和不穩定域的相互交錯現象，失穩模式對參數的敏感性，一段時間混沌振蕩后的無界現象（稱為預無界混池） ，由周期運動經一連串倍周期分岔直至混濁等。這些現象對理論研究與工程實踐都具有重要意義。
  4. By means of controlling accurately temperature of f - p cavity used in the frequency - stabilizing system of laser, the frequency stability of laser is significantly improved. especially the long - term unidirectional frequency shift is essentially overcome

    從實驗結果，我們得出將作為頻率標準的f ? p腔精密控溫與對該腔不控溫對激光器振蕩頻率進行鎖定的結果相比較，清楚看到短期穩定性有一定提高，重要是對作為穩頻標準f ? p腔精密控溫，消除了由於溫度變化引起的頻率慢漂移。
  5. To make pic ( particl - in - cell ) simulations. to set up models of guns and magnetic field and simulate them in the vacuum and plasma, respectively. we found that plasma held back part of space charge effects and improved trajectory of electrons. but beam would oscillate and became instable as accretion of plasma density. by simulating again and again, we draw a conclusion magic could n ' t work when plasma density was more by far than beam electron density. at last a four - stage depressed collector was simulated

    建立電子槍和聚焦系統模擬模型，分別在真空和填充等離子體條件下進行模擬。發現填充等離子體能補償部分空間電荷效應，改善電子束包絡軌跡，提高電子的流通率，但是隨著等離子體密度的增大，束電子會出現振蕩不穩定性，遺憾的是通過反復多次模擬發現本文所用粒子模擬的代表性軟體magic無法用於模擬等離子體密度遠高於束電子密度的情況。
  6. ( 5 ) new type difference tail - gates and their combinations are developed, which can decrease tail water level oscillation in tipping tail - gate controlling system. mathematic models are also obtained for the mentioned controlling systems, stability of which is analyzed

    （ 5 ）研製出新型差動尾門及不同的組合型式，克服了翻板門尾水大幅度振蕩問題，給出了差動式和翻板式尾水控制系統數學模型，並對它們的穩定性進行了理論分析。
  7. On the basis of the primary studies upon the nonlinear interactions between the unstable waves and the self - excited oscillations in the flow, experiments were focused upon the attenuation effects on the oscillations of tripping wires, side jets and deflected plates, and upon the mechanisms for the attenuations

    在對流動的不穩定波之間非線性相互作用過程和自激振蕩的基本規律研究的基礎上，實驗研究了絆線、旁射流和折板削弱自激振蕩的效果與機制。
  8. The calculation of the position of the shocks for the domain decomposition of the hyperbolic approximation is discussed. it is the matching stable problem for the different schemes in the different domains with different mesh size. after tracing the position of the shocks, the artificial compression method are applied to eliminate the smearing effect and to raise the resolution of the schemes. in the boundaries of each regions, the universal connected matching stable schemes are inserted in so as to make the schemes between different regions matching stable each other. at last, some numerical examples are presented

    討論在激波計算中的區域分解法，即在不同區域中應用不同網格及格式的耦合穩定性問題.先定出激波位置，再在激波附近小范圍內，用低階格式及人工壓縮方法以消除彌散效應.在激波區域外，應用高精度格式，減少了過超振蕩現象，提高了解析度.在各區域交界應用全能穩定聯接格式，解決了格式的耦合穩定問題.最後舉出數值計算實例，計算結果與理論分析符合
  9. It admits of no delay to develop high stability crystal oscillator and enhance its phase noise index to reduce the effect of jitter to the performance of the whole system

    研製高穩定晶體振蕩器，提高相位噪聲指標、減少抖動對整體性能的影響，已經成為刻不容緩的任務。
  10. In this thesis work, a 1 - d hydraulic transient model and a 2 - d compressible flow model with the large eddy simulation approach have been applied to analyse the hydrodynamic process of the unsteady separated flow. prototype observation data of gezhouba shiplock no. 3 has been used to verify the computational results. it has been found that two different types of flow regime - stably - varying and strongly - oscillating regimes - could occur in the radial gate tunnel

    本文採取將一維非恆定流模型與二維可壓縮流一大渦模擬模型相結合的方法，分析了急變分離流的水動力學特性，並利用葛洲壩三號船閘的原型觀測資料驗證了數值模型的可靠性，發現閥門段存在平穩變化型和劇烈振蕩型兩種不同的流態，並詳細計算、分析了它們的流動特徵
  11. A characteristic built into electrical circuits and mechanical systems to prevent unwanted instability or oscillatory conditions

    電子線路和機械繫統中的一種特性，以防止產生不必要的不穩定性或振蕩。
  12. A novel strategy combined the fuzzy logic of linear multivariable feedback control to design a controller of statcom to meet the multi - objective demands of power systems is also proposed in this dissertation, and the controller is designed with this strategy, because of variational element, nonlinearity and multi - objective controlling demands of statcom, this paper designs the controller respectively aimed at continuous linear control for voltage maintaining, oscillation damping, improving the transient stability

    根據電力系統變參數、非線性以及對控制要求多目標的特點，本文針對維持系統節點電壓、阻尼系統振蕩、提高系統暫態穩定性能等不同控制目標分別設計了控制器，然後將模糊邏輯和多狀態線性反饋相結合，提出了一種能滿足電力系統多目標要求的控制方法，並用該控制方法為statcom設計了控制器。
  13. The nonlinear simulations and dynamic simulating tests show that h pss is insensitive to the changes of operating conditions and perturbations, it can restrain oscillations under a wider range of operating conditions than the conventional pss. the robustness of h pss is very good. yang lin ( power system and its automation ) directed by prof

    為了與傳統電力系統穩定器進行比較，對單機無窮大系統進行了非線性模擬和動模實驗，結果表明： h pss對運行狀態的變化以及外界干擾不敏感，能夠在較大的運行范圍內有效地抑制振蕩，顯示了很好的魯棒性。
  14. 6. the theoretics of flip - flop anomalous property is perfected, and the oscillatory state of flip - flop is analyzed and the oscillatory frequency calculating equator is provided ; the self - adapting data synchronizer practical circuit with 0 error rate is designed, which can be used to resolve the problem of data synchronizing. the data synchronizer in common use is realized

    6 、對觸發器的不確定性理論作了改進，討論了觸發器的非穩態過程，給出了一些計算觸發器振蕩頻率的公式，設計了自適應數據同步器實現電路，理論誤碼率為0 ，為解決數據同步問題提供了新思路，實現了常用數據同步器。
  15. The experiment results denoted that ultrasonic surge has no positive effect to the stability of nanoscale m - zro2, which perhaps is related to the insuited technology

    實驗結果表明，超聲振蕩對納米m - zro _ 2的穩定性沒有積極效果，這可能與超聲振蕩工藝選擇不當有關。
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