系統性故障 的英文怎麼說
中文拼音 [xìtǒngxìnggùzhàng]
系統性故障
英文
systematic fault- 系 : 系動詞(打結; 扣) tie; fasten; do up; button up
- 統 : Ⅰ名詞1 (事物間連續的關系) interconnected system 2 (衣服等的筒狀部分) any tube shaped part of ...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 故 : Ⅰ名詞1 (事故) event; incident; happening; accident 2 (原因) cause; reason 3 (朋友; 友情) fr...
- 障 : Ⅰ動詞(阻隔; 遮擋) block; hinder; obstruct Ⅱ名詞(遮擋物) barrier; block; obstacle
- 系統性 : systematicness系統性原則 principle of systematization
- 系統 : 1. (按一定關系組成的同類事物) system 2. (有條理的;有系統的) systematic
- 故障 : hitch; breakdown; stoppage; fault; faulting; accident; blunder; bug; conk; failure; impairment; i...
-
The research background of this dissertation is the defence pre - research item of the national tenth - five - year plan - “ research on longevous service and high reliability of satellite ”. for improving the diagnosis ability of satellite attitude control systems, this dissertation studies on the telemetering data analyzing and diagnosis based on mathematical simulation
本學位論文以國防「十五」預研項目( 02413200204242 ) 「衛星長壽命高可靠性技術」為研究背景,為提高衛星姿控系統的故障診斷能力,對基於數學模擬的衛星姿控系統遙測數據分析與故障診斷進行了系統、深入的研究和探索。The aim of this dissertation research is focused on the pre - research defense projects of “ research on longevous service and high reliability of satellite ” of the national tenth - five - year plan. for improving the capability of fault diagnosis for un - presuppose faults, we propose a new fault reconstruction technique which suits to satellite attitude control system and four novel techniques under this frame work is investigated in this dissertation
本文以國防十五預研項目「衛星長壽命高可靠性技術」為研究背景,為提高目前衛星對無故障模式故障的診斷能力,提出了一套適合衛星姿態控制系統的故障重構框架體系,並研究了四項關鍵技術作為該框架的支撐。Procreant knowledge expression and forward inference engine are adopted in the method of fault diagnosis based on expert system theory. in the fault diagnosis applying neural network theory, six kinds of improved arithmetic of back - propagation arithmetic, including gradient descent with momentum, variable learning rate back - propagation, resilient back - propagation, quasi - newton, levenberg - marquardt and conjugate gradient, are applied to diagnose the faults of electric load manage center and solid state power controller. different diagnostic results gotten by simulation are compared at last
在基於專家系統的故障診斷方法中,採用了產生式知識表達和正向推理機制;在基於神經網路的故障診斷方法中,則分別採用了bp神經網路的附加動量法、自適應學習速率、彈性bp演算法、擬牛頓法、共軛梯度法和levenberg - marquardt法對電氣負載管理中心和固態功率控制器的故障進行診斷,並對由模擬得到的不同診斷結果進行比較。With the development of the network and the multi - processor system, the research, simulation and the impemeni of the system - level fault diagnosis which is the very important means to increase the reliability of the system, are becoming more and more important. on the system - leve1 fault diagnosis, based on the group theory of system - level fault diagnosis that has been put forward by pro f zhang, the paper constructs newly the theory bases, improves on the matrix method, reinforces and consummates group arithmetic of all kinds of test mode, for the first time, analyses and discusses the equation solution of all kinds of models, so al1 the consistent fault patterns ( cfp ) could be found, straightly and high efficiently, even if the sufficient and necessary condition of t - diagnosable is dissatisfied and the complexity of system - level fault diagnosis is greatly decreased, especialy in strong t - diagnosabl6 system. last the simulation system ' s function has been extended and the application hotspot and the development trend have been disscussed
本人在張大方教授等人提出的基於集團的系統級故障診斷的理論基礎上,重新構建了系統級故障診斷的理論基礎,定義了系統級故障診斷測試模型的三值表示;改進了系統級故障診斷的矩陣方法,重新定義了測試矩陣、鄰接矩陣、結點對、結點對的相連運算、極大準集團和斜加矩陣,由此能直觀、簡便地生成集團和極大獨立點集;補充和完善了各類測試模型的系統級故障診斷的集團演算法,通過定義集團測試邊和絕對故障集,簡化了集團診斷圖,由此能較易地找到所有的相容故障模式,即使不滿足t -可診斷性,大大減少了系統級故障診斷的復雜度,尤其是對強t -可診斷系統;首次分析探討了各類測試模型的方程解決,由此從另一角度能系統地、高效率地求出所有的相容故障模式( cfp ) :擴充了系統級故障診斷模擬系統的功能,快速、直觀和隨機地模擬實驗運行環境,進行清晰和正確的診斷,同時提供大量的實驗數據用於理論研究,優化演算法和設計。The necessity of low resistance ground system and its fault characteristic were analyzed
摘要分析了採用小電隊接地系統的必要性及該系統的故障特性。The threshold fault detection method is applied under the application of telemetering data analyzing result. it is proved effectively through the application in attitude control system
結合遙測數據與模擬數據的一致性檢驗結果,採用設立門限的故障診斷方法,實現對姿控系統的故障診斷。Humanized operate system, when bread down the occurrence
人性化的操作系統,當故障發生時隨即顯示故障原因。The paper propose the complex value u - d factorization based least square method to improve the numerical stability and the fault feature are obtained. 7
為了提高數值計算穩定性,進一步提出了基於復u - d分解的最小二乘參數估計方法,獲得了變頻調速系統的故障特徵。The following important work has been done : ( 1 ) some special problems of rate - bias laser gyro were analysed. the problems include modulation and demodulation of the output and algorithm of the attitude updates ; ( 2 ) the integrated navigation system with the fault tolerance property which equipped with many navigation equipments as sins, gps, dvs, ads, mg, vg is designed, and compared with that of ckf via simulations ; ( 3 ) the theories and methods of system level fault detection apply to federated filtering is investigated ; ( 4 ) the problem about using the fused information of sins based on rate - bias laser gyroscope / dynamical tune gyroscope to realize the component level hard fault interactions detection through a back - propagation neural network is discussed
主要研究工作有:研究了速率偏頻激光捷聯慣導的陀螺測量信號的解調演算法;設計了在速率偏頻激光捷聯慣導、 gps 、多普勒雷達、大氣數據系統、磁航向儀及垂直陀螺配備條件下聯邦濾波組合導航系統,對聯邦濾波器和集中濾波器的性能做了模擬對比分析;研究了適用於聯邦濾波器的系統級故障理論和方法;探討了利用速率偏頻激光捷聯慣導撓性捷聯慣導陀螺的混合測量信息,通過神經網路實現硬故障交互檢測的方法。Fault diagnosis of every subsystem is very important to the reliability of the whole system whether in developing phase or in testing phase
不論是研製階段還是測試階段,運載火箭各分系統的故障診斷是保證其可靠性的重要一環。An example of faults diagnosis in a complicated electromechanical system - horomill is cited ; and according to its concrete features, this thesis covers the measuring and the collection of fault feature information, the composition of the software and the hardware of faults diagnosis system, and the collection of sample books. the author takes the algorithm of faults diagnosis of artificial neural networks to emulate the faults diagnosis of the horomill system. th e thesis proves the feasibility and the superiority of faults diagnosis of the artificial neural networks - based electromechanical system
以輥碾磨這一復雜機電系統的故障診斷為實例,針對輥碾磨的具體特點,研究了故障特徵信息的檢測與提取、故障診斷系統軟體和硬體的構成以及學習樣本的選擇方法,並利用人工神經網路的故障診斷演算法對該系統的故障診斷進行模擬,證明了基於人工神經網路對機電系統故障診斷的可行性和優越性。The fault detection theories of local filter level and component level in the strapdown inertial navigation system ( sins ) are applied in the satellite control system. the independence and the fault tolerance ability are improved
將捷聯慣導系統的元件級故障檢測理論和系統級故障檢測理論應用於衛星控制系統,提高了衛星控制系統的自主性和容錯能力。First of all, for uncertain systems and state - delayed uncertain systems, the residual generators are constructed based on full - order filters, and the fault detection and isolation problems for these two classes of systems are reduced to h filtering problems by using h control theory. the fault detection filter design is formulated as convex optimization problem subject to lmi constraints in terms of linear matrix inequalities, which can be solved readily by using standard numerical software
首先,針對非時滯不確定系統和具有狀態時滯的不確定系統,採用全階濾波器構造殘差產生系統,利用h控制理論將這兩類系統的故障檢測與分離問題轉化為h濾波問題,採用線性矩陣不等式技術將魯棒故障檢測濾波器的設計轉化為具有線性矩陣不等式約束的凸優化問題,可利用標準的數學軟體求取。The computer control system is widely used in industry control, traffic transport, space technology and so on. the high security, reliability and haleness are required in these systems, since a few failures can make the losses of huge economy and human beings, thereby the developers, consumers and relational departments think much of the fault analysis, diagnosis and prevention. the hj04a system is an indemnity of the railway transport
計算機控制系統在工業生產、交通運輸、空間技術等領域中有著廣泛的應用,但要求這些系統具有很高的安全性、可靠性及健壯性,因為任何一個很小的故障都有可能造成生命、財產的重大損失,因此,開發者、用戶單位及有關部門均高度重視系統的故障分析、診斷及防護問題。The simulation experiment had indicated this method in the accurate rate and the diagnosis speed in the fault diagnosis compares the traditional method to have the further enhancement. based on fractal theory, fractal diagnosis method is developed through characteristic parameter of calculating dimension of signal fractal. based on the principles of fuzzy theory and neural network as well as the conception of fractal dimension subordinating degree, fractal fuzzy neural network, input to which is fractal dimension subordinating degree, is constructed
同時,本論文基於分形理論,以信號分形計算維數為特徵量,建立分形診斷方法;基於模糊理論和神經網路原理,基於分形維數隸屬度的概念,將不同采樣周期對應的計算維數按照模糊化處理,以一個固定的采樣周期時段的分形維數隸屬度為輸入,構成了分形模糊神經網路的診斷方法,提出了一種非線性模擬系統的故障識別方法,並利用模擬實驗驗證診斷演算法的有效性。Aiming at the unsymmetrical three phase voltages from inverter after a failure, the dissertation get the relationship among the positive sequence ( ps ), negative sequence ( ns ) and the instantaneous symmetrical component of the ps, this build the foundation to detect the fault and to get the fault feature
針對逆變器故障后的電壓輸出的不對稱性,利用對稱分量法對逆變器輸出信號進行分析,獲得了逆變器輸出信號的數字信號模型,為變頻調速系統的故障檢測與故障特徵提取奠定了基礎。 3Given the failure rates for given subsystems, the six sigma black belt will be able to use reliability apportionment to set mtbf goals
給出給定子系統的故障率, 6西格瑪黑帶應能利用可靠性分配原則設定平均無故障時間目標。Alternatively, high availability can be achieved with a single processor with sufficient redundancy, where fail - over is controlled by a combination of the operating system and special hardware features, such as dual disk drives
另外,高可用性也可以用具有足夠冗餘度的單一處理器實現,在這種系統中,故障恢復是由操作系統結合專用硬體功能(如雙硬體驅動器)控制的。With the wide application of automatic control system and fault diagnosis system, the validation of the measured sensor data has been becoming more important, so the fault diagnosis for sensor has been becoming very significant and of great value for further research
由於保證廣泛應用的自動控制系統和故障診斷系統取自各種傳感器的數據的正確性是至關重要的,所以傳感器本身的故障診斷問題變得越來越具有研究價值。In this paper, a survey of system level fault diagnosis is briefly introduced. then a boolean equation is proposed to represent the problem of fault diagnosis
將四種診斷模型表示為布爾方程的形式,基於布爾方程的表示形式討論了系統級故障診斷中的相關性質。分享友人