曲率不穩定性 的英文怎麼說

中文拼音 [wěndìngxìng]
曲率不穩定性 英文
buckling instability
  • : 曲名詞1 (一種韻文形式) qu a type of verse for singing which emerged in the southern song and ji...
  • : 率名詞(比值) rate; ratio; proportion
  • : 名詞[書面語] (剁物所用的木墩) a block of wood
  • : 形容詞1 (穩定; 穩當) steady; stable; firm 2 (穩重) steady; staid; sedate 3 (穩妥) sure; rel...
  • : 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...
  • : 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. Considering the similitude law for shaking table test, we study the test results and obtain some conclusions which are a ) generally, the silty soil in test box liquefies and the liquefied time has relation with the amplitude of acceleration, b ) when the intensity is on and above eight degree, the silty soil deposit will be liquefied dramatically, c ) the relationship of the pore water pressure is relevant to the cycle loading which represents when the cycle loading ranges from little to great, the relationship is represent as a concave curve, or else as a protruding curve and tends to stability. ( 3 ) based on the triaxial compression test and the resonant column test, some studies are made such as a ) the duncan - chang parameters of constitutive model, b ) the dynamic shear modulus ratio and c ) the damping ratio of the site soil deposits. in order to deal with the test data, a computer program is compiled

    ( 2 )利用小型振動臺進行了k _ 0固結狀態下粉土的振動液化模擬研究,通過分析正弦荷載作用下的試驗資料,驗證了粉土的孔隙水壓力增長模式的合理;從微分方程推導了基於土體振動臺模型試驗的相似律,並從模型實體、孔壓時程線和相似律等方面做出了分析,得出了如下結論:在小型振動臺試驗中,模型箱中的粉土都發生了液化,液化的時刻和輸入加速度幅值有關,而對頻的變化太敏感;粉土在相當於8 9度地震烈度的加速度幅值作用下可能產生嚴重的液化;孔壓的增長線形狀與施加的荷載有關:當施加荷載為由小到大的形式時,線形狀為上凹的線;當施加荷載為等幅的正弦荷載或荷載幅值由大到小時,線形狀為上凸的線,且逐漸趨于
  2. To save the resources and shorten the development cycle, these research methods were adopted, such as, using ug software to build the model, analyzing the removed snow ’ s track directly on the model, using adams to simulate the structure of avoiding obstacles, and using relative experience data to calculate the whole

    ( 5 )對原避障機構進行模擬分析,改進合理之處,使鏟刃避障軌跡為上凸線。 ( 6 )通過除雪車作業計算,分析前雪鏟作業時整車的側向、牽引特及功匹配特,提出改進方案。
  3. It is shown in the simulation that sliding mode control can guarantee the stability and robustness while vehicle is braking even if abs operates at the instability region of the adhesion coefficient and wheel slip curve or the surface condition changes, which is better than the pid control and nonlinear pid control

    模擬結果顯示,即使在附著系數和滑移關系線的區域,或是路面狀況發生變化,滑模控制也能保證制動的和魯棒,其控制效果優于pid和非線pid控制效果。
  4. The power angle characteristics are acquired and compared with the unsaturated curves. it is concluded that the stability limit of the power angle is less than 90 degree. reactive power regulating curves are calculated and compared with those curves when saturation effect is not considered, the result is that u type curves are deviated to the right

    通過對同步發電機各種運行線的計算,在已有文獻的基礎上更進一步分析了鐵磁材料飽和以及磁場畸變對同步發電機運行特和參數的影響;求出了空載特線和零功負載特線,在同的電樞電流下計算得到的波梯電抗同;求出了功角特線,與計飽和時的功角特線相比較,功角極限小於90 ;求出無功調節線,與計飽和時相比較, u型線向右偏移。
  5. But now it has little contribution to economy growth, reasons are : china stock exchange ' s development rule is disturbed by administration badly ; owner right structure and owner right base have problems ; investor is n ' t perfect ; media company has problems ; etc. the third part : advice for exerting stock exchange ' s promotion effect to economy growth fully

    但是它對我國目前的經濟增長的貢獻是微弱的,原因有:中國股市的回報缺乏,影響人們對持久收入的預期;股票市場變量對總需求和總產出影響較小;中國股票市場的發展機制被行政力量嚴重扭;股權結構和股權基礎存在問題;投資主體完善;中介機構存在問題,等等。
  6. First super - low specific - speed centrifugal pump has a long and narrow flow passage for its high head and low capacity, and the power absorbed by disc friction is too high, so the efficiency is very low ; secondly the diffusion of flow passage is so high, that the reserved flow often emerges at the inlet and outlet of impeller. therefore the h ~ q characteristic curve is often hump - shaped, and at the low - capacity operating condition the instability often occurs ; thirdly the centrifugal pump at high - capacity operating condition is easy to overload because the n ~ q curve appears a rising trend

    首先由於它的揚程較高、流量較小,所以它的流道狹長,圓盤摩擦損失較大,效相對較低;其次由於它的流道擴散較嚴重,易在葉片進口產生迴流和在出口產生脫流,揚程流量特線易出現駝峰,在小流量工況下易產生現象;第三,由於其功流量線呈現上升趨勢,在大流量區運行時電機易過載。
  7. In sum, the main contents of the thesis include : 1. analyses of the impact of different load characteristics on static voltage stability with the v - p - and - v - q curves of power system loads

    歸納起來,本文的主要內容包括: 1 .應用電力系統負荷的電壓-功線,分析了同負荷的負荷特對靜態電壓的影響。
  8. It is shown that small - curvature arch support is very superior to trapezoidal support in mechanical properties, and has higher bearing capacity and better self - stability, so that such problem as short - distance coal gateways and lower branch coal gateways can not be bolted and is difficult to support in high pressure can be solved effectively

    結果證明:小拱型支架力學能遠優于梯形支架,支撐能力大,自身良好,有效解決了近距離和下分層煤層巷道可錨且在強壓下難支護的問題。
  9. Ir - ta - ti metal oxide coated titanium anodes of variable composition were prepared by thermal decomposition. their micro morphorogies and electrochemical properties were characterized by scanning electron microscope, open circuit potential, cyclic voltammetry, consumption rate measurements and accelerated life test. the sem results indicated that all coatings were of a porous and cracked - mud microstructure influenced greatly by the composition of coatings. the electrochemical measurements showed that the ir - ta - ti ternary oxide - coated anodes exhibited excellent electrochemical activity and electrochemical stability in both acidic media and seawater which were affected by the composition and microstructure of the coatings. owing to good corrosion resistance and low consumption rate in seawater, metal oxde coated anodes belong to insoluble material, and can be potentially applid in impressed current cathodic protection systems as an anode

    採用熱分解方法在鈦基體上制備銥鉭鈦金屬氧化物陽極,用掃描電鏡對陽極塗層顯微形貌進行分析,通過強化電解壽命試驗、開路電位測試、消耗試驗及循環伏安線研究了金屬氧化物陽極的電化學能. sem分析結果表明銥鉭鈦金屬氧化物陽極塗層呈現多孔多裂紋形貌結構.隨陽極塗層組成同,塗層顯微形貌表現出很大差異,這種差異直接影響陽極電化學能.電化學能試驗結果表明銥鉭鈦金屬氧化物陽極在酸介質和海水中具有良好的電化學和電化學活.此外,銥鉭鈦金屬氧化物陽極在海水中的消耗很低,屬于的陽極材料,作為外加電流陰極保護用輔助陽極具有廣泛的應用前景
  10. With the 300mw turbo - generator as an example, the effects of saturation on operational characteristics and the stator and rotor ' s practical dimensions and configuration on the saturated characteristics have been studied ; some work on the grid division strategy considering the practical dimensions and configuration and the precision of the nonlinear finite element equation also has been studied. then the program for calculating and analyzing turbo - generaors " steady characteristics has been compiled and devised

    本文在系統地研究了汽輪發電機運行特(飽和特、短路特、零功因數負載特和u形線) 、非線有限元方程計算精度、轉子實際結構對飽和特的影響及計及轉子實際結構時的剖分策略等問題之後,進一步研究開發了適于同型號汽輪發電機態分析的通用有限元軟體。
  11. The model analysis of the deployed beams were studied in both theory way and simulation way. the differences of the beams in different pressures were studied. investigations showed that the method of modeling for short and long rolled beams is doable ; the process of fold maybe lead so large displacement and stress that membrane is damaged at local areas, ration and material wrinkle generates,

    研究結果表明:本文提出的分別針對短、長捲折疊充氣管的建模方法是有效的;在充氣管展開過程中,充氣速度越大,展開的速度越快,但由於阻尼損耗,二者並非線關系;充氣速度過大利於結構展開過程的;充氣支撐管的氣壓越大其固有頻越高,但影響效果很小。
  12. The impact of load characteristics and on load tap changer on static voltage stability is analyzed with the methods based on v - q and v - p curves, and the phenomenon of voltage stability voltage instability and voltage collapse are studied with steady - state simulation. finally the thesis presents the essential explanations of both voltage stability and the mechanism of voltage collapse. xu yonghua ( electrical engineering ) directed by prof

    通過電壓?功線分析法分析了同負荷特和有載調壓變壓器對靜態電壓的影響,並通過靜態模擬法從物理現象上研究了電壓失和電壓崩潰現象,最後針對這些現象給出了關于電壓、以及電壓崩潰的本質解釋。
  13. As the wing - pivot frequency decreases, it couples with the vehicle short - period mode resulting in dynamic instability. a similar instability sometimes occurs when the pivot mode couples with the fuselage - bending mode

    隨其頻降低,它與飛行器短周期模態耦合時會導致飛行器動,而與機身彎模態耦合時同樣會導致模型動
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