未擾動 的英文怎麼說

中文拼音 [wèirǎodòng]
未擾動 英文
undisturbed-zero output
  • 未 : Ⅰ副詞1 （沒） did not; have not 2 （不） not Ⅱ名詞1 （地支的第八位） the eighth of the twelve ear...
  • 擾 : Ⅰ動詞1 （擾亂; 攪擾） harass; trouble 2 （客套話 因受人款待而表示客氣） trespass on sb s hospital...
  • 擾動 : excitation; turbulent motion; turbulence; destabilization; [物理學] perturbation motion; [地質學]...
  1. This paper also tested each model and system - the second loop of qinshan nuclear power station ( the second term ) ， computed the balance point ， tested the performance of step disturbance and runback loads for system ( no adding adjustment system ) ， analyzing the factors effecting the first tiptop rotate speed of turb and time which the rotate speed reach the tiptop

    在模擬模型上，完成了穩態計算、系統階躍擾動試驗、甩負荷試驗（未加調節系統）等測試，主要監控和分析了汽輪機動態特性中兩個重要參數：汽輪機第一飛升轉速、飛升時間。
  2. If the field changes slowly, we can replace the time integral by a line integral over the unperturbed orbit.

    如果場緩慢改變，我們能夠用未擾動軌道的線積分來代替時間積分。
  3. In this paper, the finite - element numerical analysis calculation is applied to the foundation of high - rise and multi - floor building and the evolvement law of stress and displacement of tunnel used by urban traffic to explore the mutual influence between the wall rock of underground space and high - rise building foundation, taking account of the specific construction situation in the " sanmu garden " project in dadukou district in chongqing, from the perspective of underground space static - force structure stability analysis to open a underground tunnel with 6m in span and 7. 5m in height for track traffic 20m below the surface. this paper, taking considerations of three different states, i. e. the natural state without any artificial interference, the state of high - rise buildings on the surface, and the underground tunnel state with excavation for track traffic, and four plane lines and four vertical lines, analyzes and studies the distributing law of stress and displacement of calculation section from the following aspects : ( 1 ) the main stress vectorgraph, displacement distribution graph ( ux, uy ) and chromatogram graph of stress isoline ( 1, 2, xy ) of section under different states ; ( 2 ) the contrastive distribution curve of stress ( 1, 2, xy ) of different plane and vertical lines under the same state ; ( 3 ) the contrastive distribution curve of stress ( 1, 2, xy ) of the same plane and vertical lines under different states, wishing to provide references for underground space utilization and project designing and construction of the tunnel under high - rise buildings in the future

    本文結合重慶市大渡口區「三木花園」開發建設項目，從地下空間靜力結構穩定性分析角度出發，針對在該項目中涉及的高層和多層建築物以及在其地下20米處開挖了一個用於軌道交通的跨度6米，高7 . 5米的地下隧道這一具體工程情況，採用2d - 3d -有限元結構分析程序對高層與多層建築物的地基基礎及其與城市軌道交通使用的地下隧道圍巖的應力與位移演變規律進行了有限元數值分析計算，探索了地下空間圍巖與高層或多層建築物地基基礎之間的相互影響，通過考慮未受到任何人為擾動影響的天然狀態、地表存在多層或高層建築物狀態和地下開挖用於軌道交通的地下隧道狀態等三種不同狀態以及4個水平剖線和4個垂直剖線等不同情況，從以下幾個方面具體分析研究了計算斷面的應力與位移分佈規律： （ 1 ）在各種不同狀態下計算斷面的主應力矢量圖、位移分布圖（ ux 、 uy ）以及應力等值線色譜圖（ _ 1 、 _ 2 、 _ （ xy ） ）等； （ 2 ）相同狀態下不同水平與垂直剖線的應力_ 1 、 _ 2和_ （ xy ）對比分佈曲線； （ 3 ）不同狀態下相同水平或垂直剖線的應力_ 1 、 _ 2和_ （ xy ）的對比分佈曲線等，為今後在對地下空間的開發利用以及在高層建築物地下開挖硐室時的工程設計和工程施工提供參考依據。
  4. If the quintic term lies in the first terms, the unperturbed system is a quintic nonlinear schrodinger ( qnls ) equation and the cqs equation is not a near integrable systems, it only can be considered a perturbation of hamiltonian system

    若五次項置於主項位置，即未擾動系統是一個五次非線性schr （ ? ） dinger （ qnls ）方程，此時的cqs方程不再是近可積系統，而僅是一個hamiltonian系統的擾動。
  5. The results showed that organic matter, the amount of n were slightly high in original shape soil, however, the amount of p, k was slightly low in original shape soil

    有機質、含堿解氮含量略高於未受擾動的原狀土壤，但速磷、速鉀含量均低於原狀土壤，總體評價土壤屬于養分貧乏型；成土程度低、養分含量少是農林業生產水平不高的主要原因。
  6. Comparing to the classic pi control, the results of the simulations show that the proposed controller is effective. it has a robust dynamic performance with a strong capability of restraining unmodeled dynamics and bounded disturbances

    通過換流站控制的模擬實驗，與傳統的pi控制模擬結果相比較，這種新穎的換流站控制器更加符合實際，具有抑制系統未建模動態和有界擾動的能力，因此具有更強的魯棒性和自適應學習能力以及較好的動態性能。
  7. When unknown and bounded disturbance, parametric uncertainties and unmodelled dynamics exit at the same time, the system will automatically tune regulator parameters so as to guarantee robustness of speed synchronized control system and achieve indirectly position synchronized control

    對未知有界擾動、參數變化和未建模動態採用h _魯棒自校正調節器控制，可根據環境與特性變化自動整定調節器參數，有效抑制擾動、參數變化和未建模動態對系統同步性能的影響。
  8. Creep property of undisturbed and reconstituted japanese clay was presented based on drained triaxial compression tests

    摘要研究了黏土的未擾動和重塑土樣在三軸排水剪切試驗條件下的蠕變特性。
  9. In the first part, hilbert ' s 16th problem and the studies on it are introduced, and the results of zq - equivariant vector fields of degree 5 ( q = 2, 3, 5, 6 ) are given. in the second part, the definitions of zq - equivariant vector fields and the method of detection functions are stated, and all the forms of nontrivial zq - equivariant planar polynomial vector fields of degree 7 are obtained. in the third part, a concrete numerical example of zt - equivariant perturbed planar hamiltonian system of degree 7 is constructed, and for the unperturbed vector field having maximal number of centers, its global phase portraits are analyzed ( having at least 9 topologically different phase portraits ). then, for a given parameter group, its phase portrait trend is studied

    第一部分介紹了hilbert第16問題以及它的研究與發展現狀，給出了近年來利用李繼彬提出的判定函數法得出的z _ q -等變（ g = 2 ， 3 ， 5 ， 6 ）的5次系統關於它的第二部分的研究結果；第二部分介紹了z _ q -等變向量場以及判定函數法，給出了7次平面多項式系統的所有非平凡z _ q -等變向量場具有的形式；第三部分給出了一個7次平面擾動hamilton系統，研究了它的具有最大中心數的未擾動系統（ z _ 7 -等變）的全局象圖，得到了9種不同的拓撲圖形。
  10. First, we take the analysis of phase - plane on the invariant plane for the perturbed and unperturbed systems. next, we applied the singular perturbation theory to establish the persistence of invariant manifolds, as well as the " fiber represent at iones " of these manifolds. finally, by using the global integrable theory of the unperturbed system and melnikov measurement we obtai n the existence of homoclinic orbits for the cqs equation under the generalized parameters conditions

    首先，我們在常值平面上對擾動和未擾動系統進行相平面分析；然後利用奇異擾動理論討論不變流形的保持性，並給出不變流形的纖維表示；藉助于未擾動系統的可積結構和melnikov測度，我們得到了三次?五次非線性schr （
  11. Through the unknown perturbation and uncertain estimation of the system, and feedback the estimation to the control system, the active disturbance rejection controller thus realizes the dynamic feedback linearization of those dynamic systems. the adrc theory is unique, and the method is simple, it suited to the non - linear an uncertain hydroelectric power sets

    自抗擾控制理論通過對系統未知擾動和不確定量的估計，並將估計量反饋回控制系統中，從而實現系統的動態線性化，該理論思想獨特，方法簡單，特別適合於具有非線性和時變特性的水輪發電機組這樣的系統。
  12. Several influence factors to result plasma drift in hainan were analyzed. in this paper the characteristics of ionospheric parameters variation were analyzed systematically and some new results in storm - time such as seasonal behaviors were obtained ; it is the first time to investigate the ionospheric drift behavior in hainan and some new results was obtained, the relationships between each two plasma drift velocity components in storm time in hainan were found and the electric filed variation in hainan ionosphere also was obtained ; the results also show that there are big differences of the ionosphere parameters bo and bl obtained from the data with that obtained from the iri - 2001 applied for hainan ; a new phenomena was found during a strong magnetic storm, that a layer with very strong electron density and density grad was found during the recovery phase of the storm, its horizontal scale is beyond 100km and temporal scale is about 2 hours, this phenomena repeated 3 times continuously. a type of negative disturbance in high and low latitude but positive disturbance in east - asia also has been found

    本文較為系統地給出了海南地區電離層的參數變化特徵，特別是得到了一些暴時與以往不同的季節特性；第一次給出了海南地區的電離層等離子體漂移特徵，發現等離子體漂移暴時擾動在三個方向上有內在的聯系，得到了電場變化曲線；研究結果還表明海南電離層的半厚指數和形狀參數等與國際參考電離層iri - 2001存在很大差別；通過對強磁擾動事件期間的參數變化特性分析發現，在磁暴恢復相期間海南地區電離層底部存在一個電子密度非常大的高密度區，高密度區底部電子密度梯度隨高度急劇增加，該區域的水平尺度可達100公里以上時間尺度約為2小時，連續出現過三次，這是一個在海南從來未發現的新現象；研究還發現了暴時東亞地區電離層擾動會出現高低緯負相而中緯正相的現象。
  13. The strategy can reject the deviations from the model mismatch and the disturbances that repeat themselves in the subsequent batches

    本文提出的方法可以有效地消除由於模型誤差和未知擾動引起的質量偏差。
  14. A new robust adaptive scheme which are used for tracking of this robot with parametric and bounded external uncertainties is proposed in this thesis. the controller is consist of a controller which is proposed by slotine1 ' 1 and nonlinear continued feedback compensation part. by estimating the unknown physical parameters of robot on - line, it can eliminate the effects result by parameters and external disturbances and guarantee gas and uniform boundedness of parametric estimation. the only information required in setting up the strategy is the output states of jionts, while the inversion of the inertia matrix or estimation the bound of the inertia matrix and measure the jionts accelerations are not needed. it is shown by simulations that the proposed control scheme has quicker convergence velocity and better control precision than paper [ 1 ] and control schemes at present

    針對該模型具有參數及有界外部擾動不確定性時提出了一種新的魯棒自適應控制策略，控制器由基於slotine的控制器和非線性連續反饋補償控制器構成。通過在線估計機器人的未知物理參數，有效的消除了由參數及外部擾動所引起的不確定性影響，保證系統達到漸近穩定和參數估計一致有界。與現存的許多控制方法相比，該控制策略不需求解慣性矩陣的逆或估計慣性矩陣的界，不需測量關節加速度，而唯一需要了解的只是系統輸出的位置及速度狀態。
  15. Even with unmodeled dynamics and bounded disturbances presented the controller has good robust performance without need of correct dynamic model and parameter estimation. the designed controller has applied to a model of three - generators hvdc system, and the simulations are performed with netomac

    並且這種控制器的設計不需要有精確的系統動態模型，不需要未知參數來滿足線性依賴條件，不需要具體的系統參數估計，即使存在未建模動態和有界擾動，系統仍然具有很好的魯棒性。
  16. The prediction of disastrous space weather is a hot topi c among solar - terrestrial physics and high technological fields. we propose that the future forecasting of the physical conditions that the violent solar disturb ance causes at the earth by propagating in solar wind depends heavily on the num erical method. this paper analyses the existing problems we are facing in the num erical prediction of disastrous disturbance events in solar - terrestrial space, an d then gives some suggestions for future study. for such a purpose, a six step sol ution method is developed to deal with one - dimensional symmetric interplanetary shock dynamics. it should be point out that that initialization of fully self - con sistent 3 - d mhd codes considering the solar - interplanetary - geomagnetic coupled r elations with initial - boundary values at 1r of the global output of solar pl asma and magnetic field using available solar observations is an essential requi rement in space weather operational codes for forecasting purposes

    空間災害性天氣的預報是日地物理學界及高科技領域的熱門話題.未來預測太陽劇烈擾動所造成的行星際風暴到達地球空間的狀態勢必藉助于數值方法.淺析了空間災害性擾動事件數值預報存在的問題及未來設想，針對這一目的對一維球對稱問題提出了處理行星際激波的6步求解方法，指出未來空間災害性擾動事件預報模式應是一個基於三維的以真實太陽風為背景自洽建立起來的、以太陽等離子體輸出及磁場全球結構為初邊值、太陽、行星際、地磁因果耦合模式
  17. On the basis of the test about air conditioner, its load characteristics are analyzed, including the static characteristics, drop out characteristics, starting characteristics and its responses to voltage dips. it shows that the current impact can reach five to eight multiples when the air conditioner started and come back within 0. 3 to 0. 5 second. 0. 6 pu voltage is the critical voltage whether the air conditioner will stall

    分析發現，空調啟動時電流沖擊倍數可達5 8倍，在0 . 3 0 . 5秒之內平息； 0 . 6u _ n為空調停機的臨界電壓，因此空調的電壓擾動特性可以分為兩種情況：一為較小擾動情況下空調尚未停機時的動態；另一為大擾動導致空調停機時的動態。
  18. An autoregressive model is used to fit the linear part of series ; the neural network is used to fit the nonlinear part of series and to compensate the unknown disturbance

    利用一個線性ar模型擬合時間序列的線性部分，用神經網路擬合時間序列的非線性部分並補償外界未知的擾動。
  19. Based on a reduced - order model, the vsc of flexible rotor - magnetic bearing system is also investigated. a master - slave controller composed of a pc586 and a tms320c50 dsp board is build and a flexible rotor - magnetic bearing test rig is developed. simulation and experimental results show that the vsc is insensitive to the spillover problem due to the model truncation and parameter uncertainty

    結果表明，變結構控制器對于因模態截斷及非並置問題導致的未建模動態以及因系統自身特性變化而導致的參數攝動具有不敏感性，系統在上浮過程、受到外界擾動及復雜運轉情況下的性能均優于pid控制器。
  20. The results show that the majority of 7be is retained in the top one centimeter of soils, and the concentration of 7be decreases exponentially with soil depth. for the cultivated study field, the depth distribution of 7be is very similar to the undisturbed site when it is n ' t subjected to erosion or deposition. for the undisturbed, there is abroad peak in the 137cs profile close to the surface and the maximum concentration is found circa 2 cm below the surface

    ~ （ 137 ） cs在未擾動土壤剖面中主要分佈在0 5cm范圍內，同時在1 3cm的范圍出現一個~ （ 137 ） cs的相對富集層，在3cm以下隨土壤深度的增加呈指數遞減的趨勢； ~ （ 137 ） cs在農耕地土壤剖面中主要分佈在0 20cm范圍內，由於耕作活動的不斷擾動~ （ 137 ） cs的剖面分佈相對均勻。
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