饋給機構 的英文怎麼說
中文拼音 [kuìgěijīgòu]
饋給機構
英文
feeding mechanism-
This text divides into five chapters altogether : chapter one in the introduction, have introduced the common sensor of displacement, has pointed out the fine characteristic of hall ' s sensor, put forward the basic task ; chapter two have introduced the basic operation principle of hall ' s component ; chapter three introduce hall temperature performance, electromagnetic characteristic, zero error, frequency characteristic and these parameter commonly used compensation method and hall simple application of component ; chapter four having recommended the measurement principle of the feedback servo mechanism, systematic implementation method, the experimental result has appeared, structure the mathematics model, and has analysed the error ; chapter five have pointed out the developing direction in the future while looking forward to
本文共分為五章：第一章緒論中，介紹了常見的位移傳感器，指出了霍爾傳感器的優良特性，提出了基本任務；第二章介紹了霍爾元件的基本工作原理；第三章介紹了霍爾元件的溫度性能、電磁特性、零位誤差、頻率特性以及這些參數常用的補償方法和霍爾元件的簡單應用；第四章介紹了反饋隨動機構的測量原理，系統的實現方法，給出了實驗結果，構建了數學模型，並對誤差進行了分析；第五章展望中指出了今後的發展方向。Secondly, to achieve the independent regulation of active and reactive power output from the generator side which is designed for the purpose of tracing the maximum wind - energy capturing. the paper has analyzed the mathematic model of the ac excited doubly - fed machine and the stator field orientation control strategy of the motor as vscf wind power generator. thirdly, it has put forward and designed the dual pwm converter with the capacity of energy flowing bidirectional aimed at the demand of rotor energy bidirectional flow. the author constructed reliable and integrated experimental system and did a series of experimental study including no - load, cutting - in network and power generation at, below and above the synchronous speed
論文首先分析了風機運行特性及其最佳風能利用原理，通過模擬及實驗驗證了採用直流電機的輸出特性模擬風力機的最大輸出功率曲線的可行性，並給出了模擬系統的硬體結構；然後為了實現交流勵磁發電機有功、無功功率獨立調節機理，分析了交流勵磁雙饋發電機的數學模型和在追蹤最大風能捕獲變速恆頻風力發電時必需的定子磁鏈定向矢量控制策略；針對雙饋發電機轉子能量雙向流動的要求，提出並設計了具有能量雙向流動能力的雙pwm交流勵磁用變頻器；最後為實現從理論到實踐的全面研究，研製出了一套小功率完整的雙pwm變頻器交流勵磁的雙饋風力發電機實驗系統，進行了空載、並網、同步速及上、下的發電運行等一系列的運行實驗；所完成的模擬和實驗研究均驗證了理論、模型和控制策略的正確性、可行性。With the fast development of computer technology and the specialization trend of 3d gis, it is necessary and realizable to building a visible, digital, informational and intelligentized system with the three - dimensional visualization foundation, only in which variable of data and information can be fed back to users in time, dynamic and straight
隨著計算機技術的快速發展以及三維地理信息系統的部門化的發展趨勢，構建一個可視化、數字化、信息化、智能化的水利領域三維可視化系統不僅是必要的而且是可行的，要實現這樣一個系統，三維可視化是基礎，只有在可視化的環境中才能將各種數據和信息及時、動態、直觀地反饋給用戶。The dissertation derives from the project “ piezoelectric platform for precision positioning using charge - feedback and nonlinear control method ” supported by national natural science foundation of china ( authorized no. 10376043 ). the principle on the displacement amplifying of the cymbal piezoelectric actuator and the designing of the precision positioning instrument of the cymbal piezoelectric actuator has been introduced in this paper
本課題來源於國家自然科學資助基金項目「電荷反饋式壓電陶瓷精密定位機構及非線性控制技術」 （項目批準號: 10376043 ） 。本文研究了cymbal型壓電作動器的位移放大機理，設計了基於cymbal型壓電作動器的微進給機構。Piston ring is the important accessory of the engine and turning its contour is the key procedure to ensure the performance of piston ring it has great value in economy and society that we develop the nc machining system for outer circle of piston ring to manufacture the high quality piston ring and to replace the import machine according to piston ring contour data provlded by the cad system ， it can turn the piston ring contour by controlling the displacement of servomechanism which is controlled by the angle of servo motor it uses the theories of velocity closed loop 、 dlsplacement closed loop and feed forward control to improve the control precision of system on the basis of theories of elastic mechanics and mathematics ， the cad system can provide the accurate data required by the nc machine system according to the calculation model and the parameters of piston ring this system integrates the cad cam technology
系統根據活塞環cad系統生成的介面數據，通過伺服電機的轉角位置控制自主研製的高性能微位移進給機構產生給定的位移，以完成活塞環輪廓的仿型加工。系統採用速度、位置閉環控制及前饋控制理論，以提高系統的控制精度。活塞環cad系統以彈性力學和數學方法為基礎，根據常用的計算模型與活塞環參數自動生成數控加工系統所需的精確的介面數據，實現cad / cam一體化。Abstract : a new method, collaborative allocation ( ca ), is proposed to solve the large - scale optimum allocation problem in aircraft conceptual design. according to the characteristics of optimum allocation in aircraft conceptual design. the principle and mathematical model of ca are established. the optimum allocation problem is decomposed into one main optimization problem and several sub - optimization problems. a group of design requirements for subsystems are provided by the main system respectively, and the subsystems execute their own optimizations or further provide the detailed design requirements to the bottom components of aircraft, such as spars, ribs and skins, etc. the subsystems minimize the discrepancy between their own local variables and the corresponding allocated values, and then return the optimization results to main optimization. the main optimization is performed to reallocate the design requirements for improving the integration performance and progressing toward the compatibilities among subsystems. ca provides the general optimum allocation architecture and is easy to be carried out. furthermore, the concurrent computation can also be realized. two examples of optimum reliability allocation are used to describe the implementation procedure of ca for two - level allocation and three - level allocation respectively, and to validate preliminarily its correctness and effectiveness. it is shown that the developed method can be successfully used in optimum allocation of design requirements. then taking weight requirement allocation as example, the mathematical model and solution procedure for collaborative allocation of design requirements in aircraft conceptual design are briefly depicted
文摘:探討了一種新的設計指標最優分配方法- -協同分配法，用於處理飛機頂層設計中的大規模設計指標最優分配問題.分析了飛機頂層設計中的設計指標最優分配特徵，據此給出了協同法的原理並建立了數學模型.協同法按設計指標分配關系將最優分配問題分解為主系統優化和子系統優化，主優化對子系統設計指標進行最優分配，子優化以最小化分配設計指標值與期望設計指標值之間的差異為目標，進行子系統最優設計，或對底層元件（如飛機翼梁、翼肋和翼盒等）進行設計指標最優分配，並把最優解信息反饋給主優化.主優化通過子優化最優解信息構成的一致性約束協調分配量，提高系統整體性能，並重新給出分配方案.主系統與子系統反復協調，直到得到設計指標最優分配方案.兩層可靠度指標分配算例初步驗證了本文方法的正確性與可行性，三層可靠度指標分配算例證明了本文方法的有效性.最後，以重量指標分配為例，簡要敘述了針對飛機頂層設計中設計指標協同分配的數學模型和求解思路A new method, collaborative allocation ( ca ), is proposed to solve the large - scale optimum allocation problem in aircraft conceptual design. according to the characteristics of optimum allocation in aircraft conceptual design. the principle and mathematical model of ca are established. the optimum allocation problem is decomposed into one main optimization problem and several sub - optimization problems. a group of design requirements for subsystems are provided by the main system respectively, and the subsystems execute their own optimizations or further provide the detailed design requirements to the bottom components of aircraft, such as spars, ribs and skins, etc. the subsystems minimize the discrepancy between their own local variables and the corresponding allocated values, and then return the optimization results to main optimization. the main optimization is performed to reallocate the design requirements for improving the integration performance and progressing toward the compatibilities among subsystems. ca provides the general optimum allocation architecture and is easy to be carried out. furthermore, the concurrent computation can also be realized. two examples of optimum reliability allocation are used to describe the implementation procedure of ca for two - level allocation and three - level allocation respectively, and to validate preliminarily its correctness and effectiveness. it is shown that the developed method can be successfully used in optimum allocation of design requirements. then taking weight requirement allocation as example, the mathematical model and solution procedure for collaborative allocation of design requirements in aircraft conceptual design are briefly depicted
探討了一種新的設計指標最優分配方法- -協同分配法，用於處理飛機頂層設計中的大規模設計指標最優分配問題.分析了飛機頂層設計中的設計指標最優分配特徵，據此給出了協同法的原理並建立了數學模型.協同法按設計指標分配關系將最優分配問題分解為主系統優化和子系統優化，主優化對子系統設計指標進行最優分配，子優化以最小化分配設計指標值與期望設計指標值之間的差異為目標，進行子系統最優設計，或對底層元件（如飛機翼梁、翼肋和翼盒等）進行設計指標最優分配，並把最優解信息反饋給主優化.主優化通過子優化最優解信息構成的一致性約束協調分配量，提高系統整體性能，並重新給出分配方案.主系統與子系統反復協調，直到得到設計指標最優分配方案.兩層可靠度指標分配算例初步驗證了本文方法的正確性與可行性，三層可靠度指標分配算例證明了本文方法的有效性.最後，以重量指標分配為例，簡要敘述了針對飛機頂層設計中設計指標協同分配的數學模型和求解思路This algorithm recovers the absence of the empiric in the case of the fixed - topology network and generates an optimal topology automatically. we end this chapter with some problems in the future. in chapter 2, we present an evolution strategy to infer fuzzy finite - state automaton, the fitness function of a generated automaton with respect to the set of examples of a fuzzy language, the representation of the transition and the output of the automaton and the simple mutation operators that work on these representations are given
目前，國內外對神經網路與自動機的結合的研究己取得了一系列成果；在第一章，我們首先將對這些結果以及這個領域的研究思想與方法做一個概要的介紹；然後提出一種推導模糊有限狀態自動機的構造性演算法，解決了模擬實驗中所給出的具體網路的隱藏層神經元個數的確定問題；在實驗中，我們首先將樣本輸入帶1個隱藏層神經元的反饋網路訓練， 150個紀元以後增加神經元，此時的新網路在124紀元時收斂；而blanco [ 3 ]的固定性網路學習好相同的樣本需要432個紀元。Abstract : the control reconfigurable aircraft with multi - surfaces needs robust basic flight control system to support enough time for failure detection and isolation. when partial surface loses, it can keep the damaged aircraft stable. in this paper, multivariable output feedback digital control laws are designed for the control reconfigurable aircraft ( cra ). the method uses fast - sampling digital pi controllers to design digital flight control tracking system. this paper gives the way to design the controller and analyze its robustness characteristics. the simulation results indicate that the controller is very robust and the output responses are fully satisfactory
文摘:控制可重構飛機要求其基本飛行控制系統對舵面部分缺損故障具有強的魯棒特性，在故障發生后保證飛機的穩定性，提供足夠的時間進行故障的檢測和隔離，為控制系統重構提供條件.本文採用高速采樣pi控制器設計輸出反饋跟隨系統，給出了控制器的設計方法，並分析了它對于控制舵面部分缺損故障的魯棒特性.模擬結果表明，這種控制器具有好的魯棒特性Through the model the inverse dynamic problem of stewart platform is solved and a foundation is made for stewart platform control used for 500m lt. meanwhile all the restrained forces acted at joints are found which provide analysis condition for the mechanism design. a simplified resultant force acted on the cabin by stewart platform is given which makes it possible to eliminate the dynamic coupling between the two subsystems by means of active vibration control
基於newton - euler方法，建立了充分考慮動平臺慣性、支腿慣性、關節摩擦等因素的stewart平臺控制動力學模型，解決了已知動平臺運動規劃，求關節驅動力的動力學逆問題，為準確實現lt500m原型stewart平臺控制奠定了基礎；解出了各關節處的約束反力，為平臺機構設計提供了力分析條件；簡化給出了平臺對饋源艙的反作用力，使得採用振動主動控制技術消除兩級子系統之間的動力耦合成為可能。Examples of these systems include : info system, commentator information system, print distribution system, results data feed ( results feed to the world news press agencies ) and the internet data feed ( results feed to different web sites )
這些系統包括info系統、講解員信息系統、印刷品散發系統、成績數據饋送系統（提供給世界新聞機構） ，以及網際網路數據饋送（提供給不同的網站）系統。The quaternion feedback control laws was studied for the three - axis stabilization control using reaction wheels, a design method for the pid controller parameters was presented and the simulation results indicated that the control algorithm works efficiently
針對以反作用飛輪作為執行機構的三軸穩定控制情形，研究了四元數反饋控制演算法，給出pid控制器參數的設計，模擬結果驗證了控制器設計是合理的。Although an individual may have an upright code of ethics, she can still be made to act unethically if her company ' s reward system gives positive reinforcement to bad behavior
盡管個人可能會有自己的一套道德規范，但如果他所在機構的獎勵體系對于不道德行為給予正面反饋的話，這個人也依然有可能採取不道德行為。Combining fuzzy t - s model and adaptive fuzzy logic systems, this paper presents an observer - based fuzzy adaptive control scheme for complex nonlinear systems. meanwhile, the fuzzy adaptive technique, the robust control technique and the differential - geometry - based feedback linearization theory are synthesized organically, this paper presents an adaptive fuzzy tracking control scheme for complex nonlinear systems. finally, a fuzzy reconfigurable control scheme is presented for complex nonlinear systems
文中將模糊t - s模型和自適應模糊邏輯系統有機結合，提出了一套比較實用的基於觀測器的復雜非線性系統的模糊自適應控制方案;同時，將模糊自適應技術、魯棒控制技術和微分幾何反饋線性化理論結合起來，提出了一種復雜非線性系統的自適應模糊跟蹤控制方案;最後，針對復雜非線性系統，給出了一種模糊重構控制方案。分享友人