流體動力阻尼 的英文怎麼說

中文拼音 [liútǐdònglìzǔní]
流體動力阻尼 英文
hydrodynamic damping
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 體 : 體構詞成分。
  • 力 : Ⅰ名1 （力量; 能力） power; strength; ability; capacity 2 [物理學] （改變物體運動狀態的作用） forc...
  • 阻 : 動詞（阻擋; 阻礙） block; hinder; impede; obstruct
  • 尼 : 名詞（尼姑） buddhist nun
  • 流體 : [物理學] fluid; fluor流體力學 fluid mechanics; hydromechanics; 流體生物學 hydrobiology; 流體運動學 hydrokinematics
  1. Based on the special property of magnetic fluid ( mf ), we fill the magnetic fluid into the working clearances of the servo valve torque motor. one side, the magnetized magnetic fluid can exert a damping torque on the torque motor armature and reduce vibration of the armature ; on the other side, it can improve the magnetic circuit efficiency of the torque motor because of the magnetic fluid ’ s larger magnetic permeability

    基於磁流體所具有的特殊性質，將磁流體添加到伺服閥力矩馬達的工作間隙中，一方面磁流體被磁化后可增大銜鐵的阻尼力，減少振動;另一方面由於力矩馬達氣隙中磁導率的提高，使氣隙中的磁通量增大，力矩馬達的磁路效率和輸出扭矩將增大，因此可以提高力矩馬達的固有頻率和伺服閥的響應速度。
  2. 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. In the third chapter, the mathematical models of project system have been established, and simulation has been done on the simulink enviroment of matlab software kits. the simulation focus on the effects of main parameters on the dynamic characteristics of speed control system, and the main parameters include viscosity damp coefficient and friction torque of electrical motor shaft, internal leakage coefficient of pump / motor of hydraulic circuits, gas volume of pressure accumulator, viscosity damp coefficient of cylinder piston and different running building floors, etc. at last, theoretical research effects of the flow and pressure pulsation of pump / motor on car speed and oil volume leakage theory are discussed. the fourth chapter of this thesis concerns the research on the key items about hydraulic power control system according to the ens 1 - 2 and other hydraulic elevator standards

    論文第三章針對組成系統的各個模塊進行了機理建模，並且通過matlab軟體中的simulink圖形化模擬環境進行了本課題系統的模擬研究，主要針對影響系統特性的主要參數變化，動態分析系統的輸出特性，在上下行工況中，分析了電機軸系粘性阻尼系數、軸系摩擦力矩、主迴路蓄能器迴路液壓泵馬達內泄漏系數、蓄能器氣體容積、液壓缸柱塞粘性阻尼摩擦系數以及不同運行樓層工況等參數對系統特性的影響；最後對軸向柱塞泵馬達的流量壓力脈動對電梯轎廂速度的影響和蓄能器內油液體積損失機理進行了理論研究。
  4. In the forth chapter, the performances of mr dampers designed and fabricated at chongqing university have been tested in national center for test and supervision of coach quality, including schematics of damping force vs. displacement of piston head, damping force vs. velocity of piston head, etc. for some given electric currents of the coil. the experimental results demonstrate that damping force offered by mr damper consists of background damping generated by resistance of mr fluid and damping caused by magnetic field

    對不同勵磁電流條件下的理論阻尼力與測試阻尼力進行了比較，分析了產生誤差的主要原因；對阻尼器產生溫度效應產生的主要原因進行了分析，提出了應該提高磁流變體的溫度穩定性；推導了磁流變體的感性和容性流動方程，從理論上分析了磁流變體的感性和容性對阻尼器特性的影響。
  5. Increases in magnetic field frequency decreases the capability of the dis - type mr fluid damper to reduce rotor vibration

    隨著磁場頻率的增大，盤型磁流變流體阻尼器抑制轉子振動的能力減小。
  6. Results show that the magnetic field frequency has significant effect on the dynamic performance of the disk - type mr fluid damper

    結果發現，磁場的頻率對盤型磁流變流體阻尼器的動力特性有著顯著的影響。
  7. The dynamic character of the rotor system is the same as that without magnetic field when the magnetic field frequency is over a critical frequency, and the sinusoidal magnetic field cannot control the dynamic performance of the disk type mr fluid damper

    當磁場的頻率高於一個臨界頻率后，轉子系統的動力特性與無磁場時的動力特性相同，正弦磁場不能夠控制磁流變流體阻尼器的動力特性。
  8. In order to understand the effect of alternating magnetic field on the dynamic performance of a disk - type magnetorheological ( mr ) fluid damper based on shear operation, the dynamic character of a flexible rotor supported on the disk - type mr fluid damper was experimentally studied under sinusoidal magnetic field

    摘要為了掌握交變磁場對基於剪切方式的盤型磁流變（ mr ）流體阻尼器動力特性的影響，試驗研究了正弦磁場下支承在盤型磁流變流體阻尼器上的柔性轉子系統的動力特性。
  9. 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。
  10. In order to set up the dynamic model of swimming micro robot, this dissertation builds up the statics model and analyses the micro motion amplifying performance of micro robot mechanism, builds up the vibration model of micro robot and analyses the vibrating performance without and with damp, researches the propelling force of driven wing and the resistance of micro robot in liquid based on the theory of flat board resisting stream, builds up the dynamic model of swimming micro robot for the first time in nation and analyses its swimming performance which is influenced by driving signal frequency, amplifying performance of main machanism, area of driven wing, character of fluid and so on. this dissertation manufactures the micro robot and sets up the experimental environment and tests the amplifying effect and the vibrating performance

    本文建立了主體機構靜力學模型，研究了主體機構的結構參數對微位移放大性能的影響；建立了主體機構振動模型，研究了主體機構在無液體阻尼和有液體阻尼情況下的振動特性；根據流體力學平板繞流理論，研究了驅動翼產生的推進力和微機器人在流體中受到的阻力；在此基礎上國內首次建立了泳動微機器人的動力學模型，並對模型進行了深入的研究，詳細闡明了驅動信號頻率、主體機構放大性能、主體機構振動特性、驅動翼面積、液體性質等因素對微機器人泳動特性的影響。
  11. Later on, the non - linear dynamic model of the coupled rotor - body system with the mrfd was constructed and a test - bed which is fit for this model was designed. at last, the dynamic stability test for the system was implemented. the result of which says that the mrfd can improve the dynamic stability of the system markedly

    採用開-關控制策略進行帶磁流變阻尼器的旋翼/機體耦合動穩定性試驗，結果表明，磁流變阻尼器能明顯提高旋翼/機體耦合動穩定性裕度，體現了具有自適應能力的優點。
  12. It will exert resistance and damping force to the torque motor armature, so that the dynamic performance, especially the stability, of flapper - nozzle servo - valve can be improved. the self - excited oscillations and noise can be removed. at the same time, as magnetic fluid has a higher magnetic permeability, the efficiency of torque motor magnetic circuit can be improved

    由於磁流體具有的較大磁導率和較大的磁化強度，把磁流體添加到伺服閥力矩馬達的工作氣隙中，可提高伺服閥力矩馬達的磁迴路效率，增加伺服閥的阻尼，從而改善噴嘴擋板伺服閥的動態特性，抑制及消除其自激振蕩和噪聲。
  13. Low viscous drag and high - speed capability : the low viscous drag of the magnetic fluid, and non - contacting seal configuration of the magnetic fluid feed through assure its extremely smooth operation and its high - speed capabilities

    低阻尼和高速旋轉能力：磁性流體極低的粘滯阻力和磁性流體進行給裝置無需接觸密封圈的結構，決定了它的穩定操作和高速轉動。
  14. ( 2 ) the foil bearing is treated as a continuous flexible surface which is supported on an elastic foundation. the stiffness and damping of the film are assumed to be liner and constant everywhere. the fluid is modeled by using the reynolds equation for a compressible gas

    （ 2 ）建立了具有線性結構剛度和阻尼的彈性箔片軸承模型，並對這一彈性流體動力潤滑（ ehdl ）問題建立了由非定常可壓縮雷諾方程和彈性箔片平衡方程及其邊界條件組成的控制方程。
  15. Semi - active control is fit for suppressing the vibration of vehicle suspension system. electrorheologic fluids can transfer between newton fluid and bingham fluid with the control of applied electric field. electrorheologic damper, which can offer controllable damping force, can be used in semi - active control of vehicle suspension s ystem

    電流變液（ electrorheologicfluids ）在外加電場的作用下可以實現牛頓（ newton ）流體和賓漢（ bingham ）流體之間的轉變，利用電流變液製造的阻尼器能夠提供可控阻尼力，可以利用電流變液阻尼器實現對車輛懸架系統的半主動控制減振。
  16. Therefore, in this thesis, the magneto - rheological damper ( mrfd ) was studied which is of simple structure, high reliability and self adaption

    為此，本文研究了結構簡單、可靠性高並具有自適應能力的磁流變減擺器（阻尼器） ，用於控制直升機旋翼/機體耦合動不穩定性運動。
  17. After damping dynamic model and controllable model for the composite structure are established according to the constitutive equation of magnetorheologcal - fluid, fluid mechanics and electromagnetism, the complex damping model is simplified utilizing magnetorheological behavior for structure design, and harmonization of semi - active structure and passive structure can be realized by using optimal design

    針對其復合結構，根據磁流變流體的本構方程、流體力學和電磁場理論建立阻尼特性模型和可控性能模型，並應用磁流變特性將復雜的阻尼性能模型進行簡化以利於結構設計，同時依據優化設計方法實現了半主動和被動結構的協調一致。
分享友人
分享到 Line

分享到臉書