閉環性能 的英文怎麼說
中文拼音 [bìhuánxìngnéng]
閉環性能
英文
closed loop performance-
Dmas graph collection system adopts the technology of closed - loop automatic control ; has capabilities of displaying and storing the graph data and characteristic of portable, strong anti - jamming, small - volume. 2, the research on dmas fault diagnostician system
使dmas圖像採集系統具有全自動控制能力，實現了整個系統的閉環控制；具有高性能的自動採集能力；具有顯示和存儲能力；具有較強的抗干擾能力；具有體積小、輕便靈活的特點。It is generally impossible to obtain the analytic optimal guidance law for complex nonlinear guidance systems of homing missiles, and the open loop optimal guidance law is often obtained by numerical methods, which can not be used directly in practice. the neural networks are trained off - line using the optimal trajectory of the missile produced by the numerical open loop optimal guidance law, and then, the converged neural networks are used on - line as the feedback optimal guidance law in real - time. the research shows that different selections of the neural networks inputs, such as the system state variables or the rate of los ( line of sight ), may have great effect on the performances of the guidance systems for homing missiles. the robustness for several guidance laws is investigated by simulations, and the modular neural networks architectures are used to increase the approximating and generalizing abilities in the large state space. some useful conclusions are obtained by simulation results
對于復雜的非線性導彈制導系統，很難求得其解析的最優制導律，只能求得開環的數字解，不能適用於具有時變不確定性的導彈制導系統.利用神經網路的學習和推廣能力，對開環的數字最優制導律進行離線的學習，作為閉環的神經最優制導律在線應用.研究分別選擇系統狀態變量和視線角速率等不同的神經網路輸入對制導系統性能的影響，以及各種制導律的魯棒性問題，並採用模塊化神經網路結構提高神經網路的學習和推廣能力，模擬結果得到一些有益的結論At the same time, the diophantine matrix equation is closed, which has strengthen the velocity of control, so the rapid system ' s control is got ; in addition, because the synthesis solution with artificial intelligence technology and adaptive control technolo - gy together is adopted, the whole loop system ' s ability of learning and adaptation is strong and the system ' s intelligence level is impro - ved, so the robustness ability is got
因此加快了控制速度，較好地解決了控制系統的快速性問題；另外加之此控制方案採用了人工智慧技術和自適應控制技術相結合的方法，增強了整個閉環控制系統的學習能力和自適應能力，提高了系統的智能水平，從而使閉環系統具有了強魯棒性的特點。The first one : fitting together ultimate values of every dimensions in one dimension - chain one by one, educing many equations by itself, calculating results, and comparing these results of close dimension to find maximal and minimal values. the second one : projecting all dimensions on two preestablished axis, then providing the solutions to analyze whether every projected dimensions is increscent or decreasing, and synthesize the effect of every projected dimensions to close dimension, educing many equations by itself, at last calculating the result of close dimension. the third one : according to monte carlo analysis, getting every dimensions " values from every dimensions " tolerances at random time after time, simulating the actual circumstances of mass production using these dimensions, and calculating reasonable results of close dimension economically
鑒于這類系統在各大中小型企業的廣泛應用與相對滯后的研究水平，本文提出了三種新的能切實地解決目前尺寸鏈計算機輔助分析解算中存在的各種難題的設計方案，第一種方案將尺寸鏈中各組成環能取的極值組合起來，自動列方程組，求解每個組合情況下的封閉環尺寸，最後比較這些結果，得出封閉環的最大最小值；第二種方案將尺寸鏈各組成環向預先設定好的兩個方向投影，之後再分析各尺寸環投影分量的增減性，並且提供了組成環兩個方向上的投影分量增減性不一的復雜情況下的解決辦法，綜合組成環各投影分量的增減性，然後自動列出方程組，最後根據各組成環的投影分量以及所列的方程組來確定尺寸鏈封閉環的尺寸；第三種方案以蒙特卡洛法為原理，在尺寸鏈各組成環的取值范圍內使用計算機產生大量隨機數，模擬實際大批量生產中的零件尺寸分佈情況，以更經濟更合理的方式分析、計算封閉環尺寸。After analysing several kinds of light - weighting structures through ansys, hexagonal speculum structure is confirmed. in the aspect of the controling of speculum, the paper adopts the brushless dc motor which is partial assembled to drive the point speculum and the inductosyn as angle measuring component is selected, the ad2s80a the system is used to get directly angle and angular velocity. double closed - loop speed and position control is designed, as the pid control is the well - developed algorithm, which can achieve stable rotation and precise position control
在指向反射鏡的擺動控制方面，採用低速性能好的分裝式直流力矩電機作為指向反射鏡的驅動電機，並採用感應同步器作為角度測量元件，運用軸角轉換器ad2s80a進行角度和速度的輸出，採用技術成熟的pid控制方案，進行速度和位置雙閉環控制，以實現指向反射鏡轉動速度的平穩性和位置的精確性。Simulation results indicate that the cl4 system significantly improves the driver / vehicle performance in response to cross wind disturbance. while, the ol4 system does not improve the driver / vehicle system performance in a side wind disturbance
得出閉環四輪轉向可改善側風下汽車的運動，而開環四輪轉向並不能改善汽車的側風敏感性的結論。In this paper, a high performance sma system applied to steel bridge deck is put forth in allusion to the pavement project of the wuhan junshan yangtze river highway bridge. it comprises steel slab, zn coating layer, closing layer, adhesive, pre - mixed asphalt stone and dual layer sma from bottom to top. it is based on the fea results of the forces and deformation of the pavement layer by means of the algor feas, according to this bridge ' s traffic and the ambient temperature varying range of the pavement layer
本文針對武漢軍山長江公路大橋鋼箱梁橋面鋪裝工程，從鋪裝層環境溫度變化范圍、交通量等使用條件出發，在用algorfeas有限元分析軟體分析鋪裝層受力變形基礎上，提出了（即鋼板+金屬鋅塗層+封閉層+粘接劑+預拌瀝青碎石+雙層sma ）的高性能鋼橋面sma鋪裝體系，並對這種sma的組成材料，包括改性瀝青、集料、礦粉、纖維進行了比較研究，設計了這種sma的配合比，對sma混合料的性能進行了對比試驗，對這種sma方案進行了疲勞性能研究，驗證了所選擇sma方案的可行性。At first, the dynamic mathematic model is created in the light of the known dimensions and structure. then base on the mathematic model, dynamic analysis of the system is studied by drawing the open - loop bode diagram closed - loop bode diagram and step response curve using the analysis and calculating function of matlab. the influence factor on frequency character steady and performance of the system is also analyzed
首先，根據已確定的尺寸參數和結構需要，計算並建立起系統的動態數學模型，然後在已知系統數學模型的基礎上，利用matlab語言強大的分析計算功能，對系統進行動態分析，通過畫出系統的開環bode圖、閉環bode圖及系統的階躍響應曲線，分析了系統的頻率特性、穩定性及系統性能的影響因素。At last, there is a practical design of gshp - radiant system in a villa in chongqing. the compare of the gas - heater radiant floor system and the gshp radiant floor system indicates that the heating performance coefficient of the gshp is higher than the gas - heater to a large extent. in addition, this united system can use the closed circling water in the underground heat exchanger to remove the surplus heat load in transitional season
通過燃氣熱水器制熱的輻射地板供暖與地源熱泵制熱的輻射地板供暖性能實驗的對比，可以看出地源熱泵的供熱性能系數高於燃氣熱水器，同時在長江中下游地區還可在過渡季節利用閉式循環水吸收土壤冷量對房間進行供冷，提高系統運行的經濟性。Thus it can be seen the psd project is better than the closed project. at last from the aspects of technology performance, economy and society, the pcs method is used to evaluate the open project, closed project, and psd project
最後，從技術性能、經濟、社會幾方面採用綜合模糊評判法對開式、閉式、屏蔽門式三種環控方案進行綜合評判，開式環控方案以其投資最小而占最優。For all admissible uncertainties and possible controller gain variations, the desgined controller can guaranteed that the closed - loop system is asymptotically stable and the upper bound of cost function value is not more than a constant
所設計的控制器對于所允許的不確定性和控制器增益的可能變化，能保證閉環系是統漸近穩定的且性能指標上界不超過某個常數。Neural network control is an important mode of intelligent control, and it is widely used in branches of control science, first, the architecture and the learning rule ( error back propagation algorithm ) of multiplayered neural network which is widely used in control system are presentedo especially, the paper refers to the architecture of diagonal recurrent neural network and its learning algorithm - - - - - recurrent prediction error algorithm because of its faster convergence with low computing costo next, before introducing the neural network control to the double close loop dc driver system, the controllers of current and velocity loop are designed using engineering design approach after analysis of the system, simulation models of the system are created
神經網路控制是智能控制的重要方式之一，它廣泛應用於自動控制學科各個領域。本文首先敘述了控制系統中常用的多層前饋網路結構及演算法（ bp演算法） ，特別提及了能夠較好描述系統動態性能的對角遞歸神經網路和在用遞推預報誤差演算法訓練drnn時取得了較快的收斂速度。其次，應用工程方法分析設計了tf - 1350糖分離機的電流、轉速雙閉環直流調速系統的控制器，作為引入神經網路控制的設計基礎，並建立了系統的模擬模型。2 miniaturized vacuum arc quenching chamber which is with cucr25 contact material, cup shape and longitudinal magnetic field contact structure, intensive interrupting ability is used. vacuum arc quenching chamber is laid in a sealed insulating cylinder, which significantly improve the ability of enduring environment and phase - phase insulation character
2 、設計了採用cucr25觸頭材料、杯狀縱磁場觸頭結構、開斷能力很強的小型化真空滅弧室；真空滅弧室布置在封閉的絕緣筒內，提高了環境耐受能力，同時使相間絕緣性能顯著提高。Dry cleaning equipment. definitions and checking of characteristics specific ot a closed - circuit dry - cleaning machine
乾洗機.閉路循環乾洗機特殊性能的定義和檢驗A method of fuzzy optimization design based on genetic algorithm is presented as a new method of parameter optimization design for dc double closed loop speed adjusting system. the method covers three steps. firstly, speed overshoot rate and settling time are chosen as performance indice according to the demand of engineering. these indice are normalized by using fuzzy membership function and then weighted to form objective function of optimization model of the system. secondly, the dynamic response curve of the system with corresponding parameters and peoformance indice are obtained by computerized numerical calculation and simulation. finally, parameters of engineering design are expanded as searching space ; and parameters of speed regulator and current regulator are taken as genes in chromosome. these genes in searching space are optimized to get best solution by way of genetic algorithm. as shown by experimental results, the parameters designed by this method are capable of significantly improving performance indice of the system, which proves that it is a practical and effective method
提出一種基於遺傳演算法的直流雙閉環調速系統參數優化設計方法.根據工程技術的要求，選用速度超調量和過渡時間作為參數優化性能指標.將該指標用模糊隸屬度函數歸一化，再加權平均形成系統優化模型的目標函數.採用計算機數值計算方法，通過模擬獲得系統對應參數的動態響應曲線及其性能指標.最後以工程設計的參數為搜索范圍，以速度調節器和電流調節器的參數為染色體中的基因，通過遺傳演算法在搜索范圍中優化這些基因，獲得優化解.實驗結果表明，所設計的參數能使系統性能指標有顯著提高The analysis of the performance and its comparison to space time transmit diversity ( sttd ) are presented in this chapter. the link level simulations are performed. finally we discuss the effects of feedback delay and feedback error on the performance
第五章首先介紹了閉環發送分集的原理；接著對其性能進行了仔細的分析，完成了鏈路級模擬，並與開環發送分集進行了對比；最後討論了反饋延遲、錯誤對性能的影響。This paper describes the designing principle and method of hardware and software of this system, especially discusses the precise control of the temperature and pressure in theory. we adopted the new method of intelligent pid parameters auto - tuning - - relaying pid auto - tuning. this kind of parameters auto - tuning technique fully abandons the operation of modeling and sub - modeling, and directly tune the parameters by investigating the close - loop capacity
論文就該系統的硬體設計原理、軟體設計原理作了論述，特別對溫度和壓力的精確控製作了理論上的研究，採用了新型的智能pid參數自整定策略? ?繼電型pid自整定，這種控制器參數自整定技術完全摒棄了建模與建子模的運算，通過對閉環性能的測試，直接進行整定參數的操作。Posi - seal @ valves provide outstanding performance under extreme pressure or temperature conditions to maintain both excellent sealing and tight shutoff
系列碟閥在高溫高壓的應用環境下，更能顯示其出眾的閉合性能及密封性能。The guaranteed cost control problem of robust stabilization and robust performance for uncertain systems which is described by 8 operator is discussed in this paper. the condition of existing guaranteed cost controller is analyzed and proved in which the method of linear matrix inequality ( lmi ) is used. a output feedback controller of the uncertain discrete time system described by 6 operator is designed, which guarantees the system is quadratic stabilization
採用線性矩陣不等式（ lmi ）處理方法研究了delta運算元描述的不確定離散系統的輸出反饋保成本控制問題，設計了輸出反饋控制器，使得閉環不確定系統不僅是魯棒穩定的，而且對所有允許的不確定性，給定二次型性能指標的閉環性能值不超過某個確定的上界。According to the analysis of the experiment result, the influence of changing the suction temperature to performance, the influence of changing ambient temperature of compressor to performance, the influence of sealing compressor to performance and the influence of condition stabilization and state stabilization to test result were analyzed
通過對實驗結果的分析，分析了吸氣溫度變化對性能的影響、壓縮機環境溫度變化對性能的影響、對壓縮機進行封閉對性能的影響以及工況穩定和狀態穩定對測試結果的影響。分享友人