轉動阻抗 的英文怎麼說
中文拼音 [zhuǎndòngzǔkàng]
轉動阻抗
英文
rotational impedance-
For the bldcm which has a pseudo - sinusoidal back - emf waveform, this dissertation presents a svpwm control method using six discrete position signals for minimizing the torque ripple. the main aspects for the implementation of this method are analyzed, including the initial orientation of the voltage vector, reasonable choice of the impedance angle and the advance commutation angle, and estimation of the successive rotor positions
針對反電動勢類似正弦的準正弦波反電動勢無刷直流電動機，本文提出一種基於六個離散位置信號的自同步svpwm （電壓空間矢量法）控制方法，用以削弱電磁轉矩脈動，分析了實現這種方法的主要控制環節，包括起動時電壓空間矢量的初始定位，阻抗角與電流超前角的合理選擇以及連續轉子位置的估計等。To meet the demands for large space and flexible compartmentation of buildings, laminated vierendeel trusses are adopted in high - position transfer story structures. first the bearing characteristics are analyzed, in which reasonable stiffness ratio of the upper chord, middle chord, and lower chord is derived. then combined with an actual engineering model ( 1 8 similar ratio ), the static loading and pseudo - dynamic tests of two models for laminated vierendeel truss used in transfer story structures are conducted, in which one model adopts reinforced concrete, and the other adopts prestressed concrete and shape steel concrete. seismic behaviors are analyzed, including inter - story displacement, base shear - displacement skeleton curves, and equivalent viscosity - damping curves. a program is programmed to carry out the elasto - plastic dynamic analysis, and displacement time - history curves of the two models are derived. the test and analysis results show that the laminated vierendeel truss with prestressed concrete and shape steel concrete has excellent seismic behaviors. it can solve the disadvantages of laminated vierendeel trusses used in transfer story structures. finally, some design suggestions are put forward, which can be referenced by similar engineering
為滿足建築物大空間和靈活隔斷要求，在高位轉換層結構中採用迭層空腹桁架結構.首先分析了其受力性能，得出了空腹桁架各構件合理的截面剛度以及布局形式.然後結合一實際工程，進行了兩榀迭層空腹桁架轉換結構模型（ 1 : 8相似比）的豎向荷載下靜力試驗以及擬動力試驗.其中一榀為普通混凝土迭層空腹桁架，另一榀配置了預應力和鋼骨混凝土，對比分析了兩模型的層間位移比、骨架曲線以及等效粘質阻力系數等抗震性能的比較，並進行了彈塑性動力分析.試驗和分析結果表明，配置預應力和型鋼混凝土的迭層空腹桁架轉換結構具有良好的抗震性能，可以成功地解決迭層空腹桁架作為轉換層結構所產生的弊端問題，最後對這類轉換層結構提出了相應的設計建議Main research result : 1. to succeed in researching miniature pressure modulator, realizes integretion of electropneumatic conversion, high importation resistance, low power consumption, bear vibration and miniaturization by making use of physics / electricity characteristic design of piezo ceramics ; 2
主要研究結果： 1 、利用壓電陶瓷的物理/電氣特性設計研究成功了微型壓力調節器，實現了電氣轉換、高輸入阻抗、低功耗、耐振動和微型化的統一。The current in the dac ’ s output can drive the load, and the structure can save a buffer consisted of operational amplifier, so the structure can achieve high speed with no close - loop and feedback in this circuit
該10位分段式電流舵型數模轉換器的輸出端可直接用電流輸出來驅動負載阻抗，省去運算放大器構成的輸出緩沖，整個電路中沒有形成閉環和反饋，因此這種電路結構可以達到很高的速度。Filters, couplers and baluns are fabricated in the high frequency passive device integration regions
濾波器、耦合器和平衡非平衡阻抗轉換器系製造在高頻被動元件整合區域內。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In order to drive a high impedance load such as hpm sources, it is necessary to commutate fcg ' s long pulse width, high - current and low voltage pulse to a short pulse with high voltage
為用fcg驅動象hpm源這樣較高阻抗的負載，必須使用脈沖功率調制電路把fcg產生的低電壓、大電流、上升時間長的電壓脈沖轉化為高電壓、上升時間短的脈沖。Ti ? the input current that holds the input at the previous state when the driving device goes to the high - impedance state
當驅動器件轉至去高阻抗狀態時，保持輸入處于先前狀態的輸入電流。According to the principle of hydraulic resistance loop sys tem, a method for obtaining the best transmitting parameters of hydraulic system s, is presented by transforming relevent pressure energy and energy loss on trans mitting road into all impedances of the transmitting road respectively
介紹了一種根據液壓阻力迴路系統學原理，通過把液壓系統中壓力能的傳遞和傳遞過程中的能量損失轉化為傳遞路線上所遇到的所有阻抗，提出了一種獲取液壓傳動系統最佳傳遞參數的方法分享友人