模態阻抗 的英文怎麼說

中文拼音 [mótàizǔkàng]
模態阻抗 英文
modal impedance
  • 模 : 模名詞1. （模子） mould; pattern; matrix 2. （姓氏） a surname
  • 態 : 名詞1. （形狀; 狀態） form; condition; appearance 2. [物理學] （物質結構的狀態或階段） state 3. [語言學] （一種語法范疇） voice
  • 阻 : 動詞（阻擋; 阻礙） block; hinder; impede; obstruct
  • 抗 : Ⅰ動詞1 （抵抗; 抵擋） resist; combat; fight 2 （拒絕; 抗拒） refuse; defy 3 （對等） contend with...
  • 阻抗 : [電學] impedance
  1. A heuristic algorithm for an optimized dynamic user traffic assignment

    動態交通分配中道路阻抗模型的研究
  2. The present study is supported by the project of national science foundation of china, " 3d dynamic imaging of brain electrical activity " and by the project of science foundation of hebei, " noninvasive measurement and functional imaging of brain tissue " we design a primary hardware system of 16 electrodes on the base of the model

    本論文的研究是在國家自然科學基金重點項目「腦內電活動的三維動態成像」和河北省自然科學基金項目「腦內組織電阻抗特性的無損檢測與功能成像」的資助下完成的。本文設計並實現了一個初步的基於物理模型的16電極eit硬體系統。
  3. Taking the bending stiffness, cable sag and cable inclination into consideration, the space vibration control of the cables using the visco - elastic dampers in cable - stayed bridges is investigated by joining the center difference method and the state space strategy. both the maximum modal damping ration and the optimal damper size are obtained, then the practical suggestions are proposed for the design of the dampers. the space nonlinear vibration equations of the cable - damper system are derived, and a new hybrid method for solving the cable - damper system is presented by combing the newmark method and pseudo - force technology

    綜合考慮了拉索抗彎剛度、垂度的影響，研究了粘彈性阻尼器對斜拉橋拉索的空間振動控制，聯合中心差分方法及狀態空間法，得出了拉索麵內、外振動各階模態可能達到的最大阻尼比及相應的最優阻尼器系數，並對斜拉橋拉索的阻尼器設計提出了參考建議：考慮拉索抗彎剛度、垂度及幾何非線性，導出了索-阻尼器系統的空間振動非線性方程組，結合newmark方法及偽力（ pseudo - force ）方法，創新地提出了求解非線性方程組的雜交方法，根據拉索-阻尼器系統的阻尼特性，在各種荷載作用下，對索-阻尼器系統的非線性瞬態振動響應進行了研究，從系統響應的角度更加直接地驗證了阻尼器的控制效果。
  4. The factors affecting the permeability coefficient are investigated, and the mass transfer model across the supported liquid membrane is established, by which the mass transfer is simulated

    考察了各因素對滲透系數的影響，並對傳質滲透過程進行模擬。同時建立了支撐液膜中的膜相流失行為的動態膜阻抗監測方法。
  5. Then, based on the estimation algorithm decomposing the measurement of voltage scope and power scope, the problems of the location of transformation tap settings and the tide current estimation of zero - impedance branches in state estimation are solved ; and detection and identification of bad data in state estimation are deduced and stimulated, also a hybrid method of detection and identification is brought forward

    隨后，在基於分解電壓測量量和功率測量量的估計演算法的基礎上，對狀態估計中經常出現的變壓器抽頭位置問題和零阻抗支路潮流估計問題進行了分析和處理；對狀態估計的不良數據檢測與識別方法進行了推導和模擬，並提出了一種混合檢測方法。
  6. Thus the resistance factor and vibration modes of the soil layer are obtained and used to analysis the pile response. by considering the interaction between the soil layer and the pile with boundary condition of continuity of displacement and equilibrium of force at the interface of soil layer and pile, the dynamic equilibrium equation of pile is solved and an analytical solution for the pile response in frequency domain is yielded, which is used to define complex stiffness and mobility at the level of the pile head. based on the convolution theorem and inverse fourier transform, a semi - analytical solution of velocity response in time - domain subjected to a semi - sine exciting force is given

    首先通過引入勢函數方法對土體位移進行分解，從而將土體動力平衡方程解耦，求解得到了土層的振動模態和阻抗因子，然後利用該解以小應變條件下樁土接觸面上力平衡和位移連續條件來考慮樁土耦合作用，求解樁的動力平衡方程，得到了樁頂的頻域響應解析解、復剛度和速度導納，利用卷積定理和傅里葉逆變換，求得了半正弦脈沖激振力作用下樁頂速度時域響應半解析解。
  7. By analyzing the refraction 、 reflection process of fault transient current traveling wave of high voltage and characteristics of refraction 、 reflection coefficient systematically, a new fault location method of single ended traveling wave is presented. it can not only identify the reflection wave for fault location efficiently, but also not be affected by the structure and length of line. fault earthed resistance 、 fault type 、 system impedance and can locate fault in adjacent areas accurately

    論文深入地分析了高壓線路故障暫態電流行波的波折、反射過程以及折、反射系數的特點，提出了新的單端行波故障測距方法，它不僅能夠有效地識別出測距所用的反射波，而且幾乎不受線路結構、長短、故障接地電阻、故障類型、系統阻抗的影響，在近區仍可以準確地進行測距；同時模擬阻波器的特徵，設計了低通數字濾波器，對通過了低通數字濾波器的暫態故障電流行波再次進行小波分析，並利用本文提出的單端行波故障測距方法進行故障定位，結論是所提出的測距方法在實際應用中仍是有效的。
  8. A method is proposed for the parameter identification of the viscoelastic internal dampers of the multirotor systems in this paper. the multi - rotor system is regarded as a composite structure. the impedance matching method in the substructure method for structural dynamic analysis is used for the dynamic calculation of the structure. the augmented lagrange method is applied to the iteration calculations of the characteristic determinant of eigenvalve equation of the system. and then the results of parameter identification can be obtained. upon the dynamic characteristics of the system, the method can reveal the influence of the gyroscopic moments of force precisely. in process of the analysis, the various properties of multi - rotor systems are made the best use of, so the measure of the modes parameters is avoided, the calculation is simplified. in addition, an efficient method is proposed to establish a dynamic model of multirotor systems with viscoelastic internal dampers. the calculating results are consistent with the experimental results satisfactorily

    提出了多轉子系統的粘彈性中間彈支參數辨識的一種方法.該方法把多轉子系統看作復合結構，用動態子結構分析的阻抗匹配法計算動力學特性，用增廣拉格朗日乘子法迭代計算系統特徵方程的系數行列式，獲得系統物理參數的辨識結果.該方法可以準確計入陀螺力矩的影響，避免測量振型參數.在分析中，利用多轉子系統的特性可簡化分析過程.文中還介紹了一種建立粘彈性彈支多轉子系統動力學模型的方法.計算結果與試驗結果基本一致
  9. The simulation results show the existence of both limits and optima for the studied parameters, related to the stable operation and the maximum efficiency, respectively. underlying the conditions that the longitudinal guiding magnetic field is 1. 8t, diode voltage is 250 kv, the impedance is 150, we got a peak power as high as 100 mw for the tm01 mode at 38ghz

    經優化設計，本文給出了一個相對論亞納秒毫米波返波振蕩器的物理模型，在引導磁場為1 . 8t 、二極體電壓為250kv 、阻抗為150的情況下得到了超輻射狀態下輸出微波峰值功率為100mw 、中心頻率為38ghz 、模式為tm _ （ 01 ）模的微波輻射。
  10. A fem software as an important tool, work has been done as follows : the method using fem to design anomalous structure of transducers was adopted ; the vibration modes of the elastic pipe, ultrasonic transducers and system has been analyzed in piezoelectric coupled field. resonant frequencies of the transducers have been matched quite well with resonant frequencies of pipe, which can make it easy and accurate to design a transducer. the values of equivalent dynamic capacitors and dynamic inductances of ahead nine orders have been gotten derived by fem method, and fem equivalent circuit of the transducers has been built

    以ansys有限元軟體為主要分析工具完成了設計工作;在經典換能器設計理論和前人經驗的基礎上，對不規則形狀的換能器採用了有限元的方法設計;在耦合場中分析了換能器、導管及整體裝置的振動情況，使換能器的諧振頻率與導管的諧振頻率達到了較好的匹配，使設計變得更加容易和準確;利用有限元方法建立了振子的等效電路模型，求出了其前6階模態的等效動態電容電感值，為阻抗匹配和驅動電路的設計提供了依據。
  11. The transient simulation model of impedance - matched balancing transformers is established. the effect of transient model and equivalent circuit in calculation of steady short circuit current are compared

    摘要建立了阻抗匹配平衡變壓器的暫態模擬模型，比較了暫態模型和等值電路在計算穩態短路電流中的效果。
  12. Modal impedance synthesis method applied to analyzing vibration of iocomotive

    用模態機械阻抗綜合法分析機車振動
  13. Comparison analysis between voltage changes in v -, p - space and common curves, the criterion of impedance modul is made. and it is a good supplement to the space analysis method. they are the three spaces of the ternary analysis method

    將電壓運行狀態在v -和p -空間上的變化同電壓穩定常用的p - v曲線和阻抗模判據進行了比較分析，是對p - v空間分析方法的有益補充，共同組成三元分析方法的三個分析空間。
  14. By selecting the voltage space vector of the voltage across the equivalent converter impedance as the control variables, the steady - state model of hvdc - vsc is developed. on this basis, a steady - state feedback linearization strategy is proposed, then, linear and decoupled control is realized using pi controllers and feedforward compensation

    建立了以vsc等效換流阻抗上的基波壓降所對應的電壓空間矢量為控制量時hvdc - vsc的穩態模型，並根據所建立的穩態模型，提出了基於穩態模型的hvdc - vsc反饋線性化控制策略。
  15. The steady compensation characteristic and the damping resonance characteristic of the equipment are analyzed in detail, theoretic analyze and experiment results have verified the feasibility and the correctness of the proposed topology

    模擬和實驗結果表明該裝置具有良好的穩態補償特性，並且可以較好的抑制無源濾波器與電網阻抗之間的串並聯諧振。
  16. Based on the head loss coefficients obtained from gardel ' s semi - empirical equations for t - junction flow and experiment of welded t - junction, the hydraulic characteristics of throttled surge tank are estimated and compared with those gotten from hydraulic experiment. 3. four different methods of determining the head loss coefficients of throttled surge tank have been employed to investigate the effect of methods afore mentioned on the accuracy of calculating surge and pressure head of throttled surge tank

    給出了基於gardel關於三通管水頭損失系數的經驗公式、焊接t形三通管水頭損失系數的實驗資料及截面突變管道的水頭損失資料，計算有連接管的阻抗式調壓室在不同流態下水頭損失系數的計算方法，並將這兩種方法計算得到的調壓室局部水頭損失系數分別與模型試驗成果進行了比較和分析； 3
  17. In chapter 3, a lot of researches about the dynamic imaging for the brain hematoma based on a 2 - d circular model and 3 - d sphere model were studied. the effect on the brain surface potentials ( bsps ) due to the change of hematoma within brain in a 3 - d sphere model was discussed here and the results were very valuable. then some researches about the effect on the bsps due the existence of skull were studied as well as

    第三章首先分別在二維圓形場域、三維球形模型上對顱內血腫動態成家方法進行了大量的模擬計算，研究了顱內血腫（水腫）體積、位置的變化對邊界電位的影響及其規律；然後研究了顱骨存在對邊界電位的影響；最後還研究了電阻抗成像中的三維效應。
  18. 4. simulation and comparisons of the dynamic voltage stability of constant impedance load, constant current load and constant power load in the context of large disturbances, and analyses of the simulation results with their load characteristics

    4 .對大擾動下恆阻抗，恆電流，恆功率負荷的動態電壓穩定性進行了模擬比較，並運用其負荷特性對模擬結果進行了分析。
  19. Presents the simple but highly reliable on - line detection of ultrasonic transducer clamping capacitance based on the impedance circuit model constructed through the impedance characteristics of the ultrasonic transducer under triple harmonics, and concludes from experimental results that this method can be used to effectively detect the variation of clamping capacitance while the transducer is operating, and the matching inductance can be dynamically regulated according to the results of detection, and dynamic matching can therefore be achieved in the real sense at the end of the transducer to improve the overall performance of the whole system

    為了解決大功率超聲應用的換能器電端匹配問題，分析了超聲波換能器在諧振頻率三次諧波下的阻抗特性，給出了超聲換能器三次諧波下的阻抗電路模型.並根據阻抗電路模型建立了對超聲換能器的夾持電容實現在線檢測簡單、可靠性高的方法，實驗證明該方法有效的.該方法可以在換能器工作過程中隨時檢測夾持電容的變化，根據檢測結果對匹配電感進行動態調整，實現真正意義上的換能器電端的動態匹配，從而大大改善匹配質量，提高系統的工作性能
  20. The method of mechanical impedance to calculate stator ' s natural frequency is given, and so is the flow of modal analysis. these results are compared

    給出了機械阻抗法計算sr電機定子固有頻率的方法和使用模態分析儀分析模態的流程，針對實驗樣機給出計算及實驗結果，並進行對比。
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