磁變阻器 的英文怎麼說
中文拼音 [cíbiànzǔqì]
磁變阻器
英文
field rheostat-
The electromagnetic unit is composed of medium - voltage transformer, compensation reactor, damper etc., the casing is filled with insulation oil
電磁單元由中壓變壓器、補償電抗器、阻尼器等器件組成,箱體內充絕緣油。The rheological equations, derived from n - s equation in hydromechanics employing the newton fluid model and the bingham plastic model, demonstrate that damping force can be controlled by changing the magnetic field in the gaps. 4
流變學方程表明:改變阻尼通道的磁場強度可以控制磁流變阻尼器的阻尼力,從理論上分析了磁路參數和阻尼通道的結構參數對磁流變阻尼器阻尼力的影響。Experimental modeling of magneto - rheological dampers
磁流變阻尼器的實驗建模The discovery of the colossal magnetoresistance ( cmr ) in hole - doped perovskite manganites ra1 - xmxmno3 ( ra is a trivalent rare - earth ion and m is a metal ion ) has attracted much attention since 1989 due to not only its technological applications in magnetic recording and sensor, but also the effect of the strong correlation concerning metal - insulator transition in the field of basic research. since then, several physics models have been suggested to explain the mechanism of cmr. however, the exact mechanism of cmr remains to be done
自1989年在摻雜鈣鈦礦型錳氧化物ra _ ( 1 - x ) m _ xmno _ 3 (其中m為金屬離子, ra為三價稀土離子)中發現龐磁電阻( cmr )以來由於其在磁記錄、磁傳感器等方面潛在的應用前景,以及金屬?絕緣體相變等所涉及的強關聯效應,使該類化合物吸引了物理學界的廣泛注意。Automatic field rheostat
自動磁場變阻器Several semi - active control algorithms used in the semi - active suspension system with mr dampers are proposed and developed including the " on - off " voltage controller, the continuously linear variable voltage controller, the modulated continuously linear variable voltage controller based on " sky - hook " damping concept and the hybrid controller based on the combination of " sky - hook " damping concept and " ground - hook " damping concept and the fuzzy logic controllers using measurements of the relative displacement between the sprung and unsprung mass or the absolute acceleration of the sprung mass as the input variables of fuzzy logic controllers. the simulation models were prepared in matlab ? simulink ? fuzzy toolbox programs. the experiment setup of the semi - active suspension system with mr dampers in the lab has been designed and developed
根據磁流變阻尼器特性和對懸架系統動力學特性的規律性研究,為磁流變阻尼器設計了基於「天棚」阻尼控制概念的「 on - off 」 、線性連續和修正的線性連續控制策略,基於「地棚」阻尼控制概念的磁流變阻尼線性連續控制策略, 「天棚」阻尼和「地棚」阻尼控制概念線性組合起來的磁流變阻尼混合控制策略,根據模糊控制原理設計了以簧載質量和非簧載質量間相對位移或簧載質量加速度分別作為輸入變量的模糊邏輯控制器用於磁流變阻尼半主動懸架的智能控制。The results show good effect of semi - active car suspension with mr damper and verify feasibility and advantage of mr damper in car suspension control and in the mean time provide a good future for the development of car absorption of vibration technology
本文研究證明了磁流變阻尼器在汽車半主動懸架控制系統中良好的減振控制特性,為汽車減振技術的進一步發展提供了很好的前景。Compared with the passive car suspension, the semi - active car suspension system with the intelligent mr damper can control the damping force automatically with the computer control and then enhance the ride comfort and handling stability of the car effectively
與傳統的汽車被動懸架系統相比,裝有磁流變阻尼器的半主動懸架系統,可以根據路面狀況和車輛運行狀態,在計算機的控制下自動調節阻尼力,大大提高了汽車乘坐的舒適性和行駛安全性。In the models, the iron core nonlinearly of the traction transformer and the magnetic hysteresis effect without the b - h curve are considered. having tested by digital simulation, the winding parameter has not changed in the state of external fault or magnetizing inrush etc. but the winding parameter has obviously changed in state of inter fault or inter - turn fault. ( 3 ) the rules three phases converted to two phases of traction transformer in electric railways are developed in this paper
( 3 )利用牽引變壓器磁鏈平衡方程,建立了基於系統辨識理論的雙繞組單相接線牽引變壓器、阻抗匹配平衡牽引變壓器及scott (斯科特)接線牽引變壓器的「灰箱」模型,該模型考慮了牽引變壓器鐵芯非線性和磁滯效應,但又不直接反映在模型中,並且無需鐵芯的b - h曲線數據。The predigested calculating model about lunar soft - landing damping system is established in the course of landing shock. the dynamic computer simulation model is established according to the structure parameters
建立了磁流變阻尼器緩沖系統沖擊時的簡化模型,利用本文建立的動力學方程和所用阻尼器結構參數構建了動態模擬模型,並進行了計算機模擬。According to the working modes of mr devices, combining the ohm ' s law of magnetic circuit and the design theory of non - steady magnetic circuit, magnetic structures of the automotive damper have been worked out. to emulate the performance of conventional shock absorber, two automotive mr dampers were designed and fabricated at chongqing university. an applied magnetic field increase the yield stress of mr fluids in flow annular passages, which alters the velocity profile of mr fluid in the passages and raise the pressure gradient between low cavity and high one at some given flow rates
根據磁流變阻尼器工作模式,利用磁路中的歐姆定律和動態磁路設計原理,結合汽車懸架的技術要求和結構特點,提出了基於剪切模式和流動模式共同作用(混合工作模式)的汽車磁流變阻尼器設計原理,討論了阻尼器動態磁路設計中的若干技術問題;根據流體力學navier - stokes方程,分別利用newton流體特性和bingham流體特性,推導了基於平板模型和軸對稱模型的流變學方程,得出了阻尼器阻尼力的計算方法。3. we do short circuit analysis upon multiple magnetic circuit transformers by use of steady non - linear analysis and get the leakage reactance respectively between high voltage and high voltage 、 high voltage and low voltage 、 two high voltage and low voltage 、 low voltage and high voltage and low voltage and two high voltage. what ’ s more, we do finite element analysis upon the temperature field of transformers and according to its distribution we get the wind speed to forced air cooling
3 、採用穩態非線性分析法對多磁路變壓器進行短路阻抗計算,利用能量法計算出變壓器高壓與高壓、高壓與低壓、兩高壓與低壓、低壓與高壓以及低壓與兩高壓之間的漏感;對變壓器的溫度場進行有限元分析,確定溫度場分佈情況。In accordance with the driving characteristics of ac driving locomotive, the working status of its traction transformer is analysed. the questions that should be considered in the traction transformer design of ac driving locomotive are mentioned. these questions are the large short - circuit impedance of traction winding, higher harmonic current, over - excitation and dc magnetization caused by large variation of the network voltage, etc. some disposal methods are given
針對交流傳動電力機車的傳動特點,對其中的牽引變壓器的工作狀態進行了分析,指出交流傳動電力機車用牽引變壓器設計時需考慮的牽引繞組的短路阻抗大、電流的高次諧波、網壓波動大可能引起的過勵磁以及直流磁化等問題,同時給出了相應的一些解決方法。Optimal vibration control using mr dampers
基於磁流變阻尼器的結構振動優化控制A practical calculating model of magnetorheological damper
磁流變阻尼器的實用計算模型Considering the above control strategies which make the controller can not be real - time processing because its workload has increased, control circuits of the main switches based on eprom are designed, which can implement control scheme of firing angles and phase voltage. furthermore, it avoids power converter saturation in the process of commutation
上述控制策略的引入造成控制器運算量增大、難以在線實時控制,又設計了基於eprom的主開關器件通斷控制電路,實現了開關磁阻電動機開通關斷角控制及對施加於相繞組上電壓的優化控制,同時避免了換相時可能引起的功率變換器飽和現象。This paper presents an adaptive control for the semi - active suspension using the combination of mr damper and feedback neural networks. analyzing the mr damper, a smart actuator, chapter 3 gives the design of pre - amplifier of current, which provides the external magnetic field. and it discusses the additional nonlinear stiffness resulted from the transition of mr fluid from liquid to semi - solid or solid
在分析新型智能材料用做作動器的磁流變阻尼器特性的基礎上,本文給出阻尼器線圈的前置電流放大電路,並討論了因磁流變液體固液態之間的可逆變化而產生的懸架系附加非線性剛度。A problem is choosing the control current of mr damper. in this paper, fuzzy logic controller is introduced to choose the control current, and full - state intelligent control for structures is carried and fuzzy logic full - state control is proposed. 3
對于磁流變阻尼器控制電流的精確選擇問題,本文引入模糊邏輯控制器進行電流選擇,並實施對結構的全態智能控制,提出了模糊邏輯全態控制; 3The other is supported by emerson network power co., ltd as an advanced research project. and this paper mainly introduces how to design and realize a four - quadrant running srd system to control a 3kw srm ( 8 / 6 poles ) based on a dsp ( tms320f240 ), which uses h - bridge power convertor and power - consumption braking method
本文基於省重點科研項目「開關磁阻電機新型控制及其調速系統」和深圳emerosn網路能源公司預研部項目,分析討論了如何設計實現一套以3kw的四相( 8 6極) srm為控制對象以dsp為控制核心採用h橋式功率變換器和能耗制動方式的四象限運行srd系統。In view of the progress of mr techniques and automotive suspension techniques, some mr damping techniques for automotive suspension systems, including system theory, experimental investigation, design method, manufacture technique, and models of the dampers, etc. have been presented in this dissertation in order to progress the mr fluids and automotive suspension techniques based on mr damper
本文根據磁流變技術的研究現狀和汽車懸架技術的發展趨勢,系統研究了汽車磁流變阻尼技術,包括:磁流變效應、阻尼器系統理論、設計方法、實驗研究和阻尼器的動力學模型,旨在推進磁流變體和磁流變阻尼器在汽車工程中的應用研究。分享友人