無阻尼振蕩 的英文怎麼說

中文拼音 [wúzǔnízhèndàng]
無阻尼振蕩 英文
undamped oscillations
  • 無 : 無Ⅰ動詞（沒有） not have; there is not; be without Ⅱ名詞1 （沒有） nothing; nil 2 （姓氏） a surn...
  • 阻 : 動詞（阻擋; 阻礙） block; hinder; impede; obstruct
  • 尼 : 名詞（尼姑） buddhist nun
  • 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...
  • 無阻 : undamped; unobstructed; unimpeded
  1. We study the time evolution law of the atomic response in an open - type inversionless lasing system when the probe or driving field is off - resonance, and compare the law with that obtained when the probe and driving fields are resonant. we find that the detuning has considerable effects on the time evolution law : when the probe or driving fields is off - resonance, the dispersive responses for the probe and driving fields are no longer 0 and the two - photon coherence is no longer a pure real ; the variation of the probe detuning can make the time evolution law of the population distributions and the gain ( absorbtion ) of the driving field changing obviously ; with detuning increasing, the time evolution behavior of the gain ( absorbtion ), dispersion of the probe field and the two - photon coherence will gradually diviate from the evolution law of the standard damped oscillator ; with the driving detuning increasing, the oscillating time of the dispersion of the driving field becomes longer, the amplitude and the stationary value increase

    研究了探測場或驅動場失諧情況下開放的型無粒子數反轉激光系統中原子響應的時間演化規律，並與探測場和驅動場都共振時的演化規律進行了比較.我們發現失諧對時間演化規律有顯著的影響;當驅動場或探測場失諧時，原子對探測場和驅動場色散的響應不再為零，雙光子相干不再是純實量;探測場失諧的變化將使粒子布居和驅動場增益（吸收）的時間演化規律明顯改變;隨著失諧的增大，探測場增益（吸收） 、色散和雙光子相干隨時間的演化行為逐漸偏離標準阻尼振子的演化規律;驅動場色散驅動場失諧量的增加而振蕩時間變長，振幅和穩定值變大
  2. The characteristics of damping shows that the uncompensated parallel ac transmission line can release the coupling between the hvdc and generator and improve the damping of the system, hence the possibility of subsynchronous oscillation decrease. in such a system scheme, the hvdc system dominates the changes of damping due to the small magnitude of the damping provided by ac line. when the ac transmission line is compensated with a fixed series capacitor, the situation will be totally different

    其中，並列運行的無串補交流輸電線路可以緩解hvdc與其臨近機組之間的機電耦合程度，改善hvdc的電氣負阻尼特性，從浙江大學博士學位論文摘要而減輕機組發生次同步振蕩的危險性，此時系統的整體電氣阻尼特性由hvdc的性質決定;但若交流線路中存在串聯補償電容，則系統幅值較大的電氣負阻尼不僅可能使整流站機組發生次同步振蕩，逆變站附近機組同樣存在發生次同步振蕩的可能性，此時系統的整體阻尼特性由串聯補償電容的性質決定。
  3. The damped solutions are very complicated. there are unoscillatory damped solutions and oscillatory damped solutions. the damped solutions are almost strongly damped, particularly in the degenerated situation

    而阻尼解一般都較復雜，即存在無振蕩阻尼解，也存在振蕩阻尼解，阻尼解幾乎都是強阻尼的。
  4. The unified power flow controller ( upfc ) is one of the most enterprising realizations of the idea of flexible ac transmission system ( facts ). having the ability of controlling most of the basic power system parameters, upfc can flexibly adjust the real and reactive power through the transmission line, damp the oscillation, and enhance the stability of power system and so on

    統一潮流控制器（ upfc ）是靈活交流輸電系統中最有代表性的成員，具備控制多種電力系統參數的能力，因而可以靈活地調節線路有功和無功功率、阻尼系統振蕩、增強電力系統的穩定性和提高輸電線路的傳輸極限。
  5. So far, however, people mainly paid their attention to those functions of asvg, such as compensating reactive power or damping surge of power system

    在迄今為止的應用和研究中，側重於考慮靜止無功發生器補償系統的無功功率或阻尼系統振蕩的功能。
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