相對故障率 的英文怎麼說

中文拼音 [xiāngduìgùzhànglǜ]
相對故障率 英文
relative failure frequency
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 對 : Ⅰ動詞1 （回答） answer; reply 2 （對待; 對付） treat; cope with; counter 3 （朝; 向; 面對） be tr...
  • 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
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 相對 : 1. （面對面） opposite; face to face 2. （非絕對的） relative 3. （比較的） relatively; comparatively
  • 故障率 : fault rate; failure rate故障率曲線 bathtub curve; 故障率數據 failure-rate data; 故障率水平 failure-rate level
  • 故障 : hitch; breakdown; stoppage; fault; faulting; accident; blunder; bug; conk; failure; impairment; i...
  1. 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。
  2. Keshi doors for three main reasons for the failure of its system to implement the corresponding rectification measures, the master door key points throughout the system, we can reduce the incidence of failures door, the door has effectively improved the reliability and improve the quality of operations

    針對三種客室車門故障的主要原因，對其系統地實施了相應的整改措施，掌握了車門整個系統關鍵點，就可以減少車門故障的發生率，有效地提高了車門的可靠度，提高運營質量。
  3. What is mainly discussed in this dissertation is as follows : the fault mechanism and vibration frequency feature of hydroelectric vibration are analyzed, induced and reorganized. the select and placement of detecting positions of parameters such as vibration, swing and pressure pulsation are researched, and the corresponding sensors are selected to monitor

    本文主要進行了以下工作：分析、歸納和整理了水電機組振動的故障機理和振動頻率特徵，對機組的振動、擺度和壓力脈動測點進行了選擇和布置，並選用相應傳感器進行監測。
  4. Abstract : in the validation testing of software, the analysis of failure data can help to understand the failure distribution in the software. based on the analysis result, the corrective actions and proper approcahes can be taken to improve the detected efect rate of software tesing

    摘要：在軟體的確認測試中，如果能夠對故障數據進行相關的分析，就可以實時地了解被測軟體的故障分佈情況，並採取相應的措施和方法，從而提高軟體測試的缺陷發現率。
  5. Based on the count of failure in the samplers, this paper analyzes the weak link of the quality of domestic automobile products. with the help of mathematical statistics and automobile reliability theory, we get the failure law of bus, truck and car of the domestic automobile industry and their failure distribution function, reliability function, probability density function, and failure rate function. accordingly, the present situation of reliability in domestic automobile products is expounded

    本文通過對樣車的故障進行統計，分析了我國汽車產品質量的薄弱環節，並藉助數理統計手段和汽車可靠性理論，得出了國產客車、載貨汽車以及轎車的故障規律和相應的故障分佈函數、可靠度函數、故障密度函數及故障率函數，論述了國產汽車產品的可靠性現狀。
  6. Low fault rate

    故障率相對低：
  7. In order to improve the behavior of transformer protection that is incomplete at present in distinguishing magnetizing inrush current from fault current, the paper puts forward a kind of new principle of transformer differential protection after analyzing the characteristic of magnetizing inrush and active power consume of transformers. this protection uses differential protection based on positive sequence active power as a criterion to discriminate internal faults from magnetizing inrush, and ratio restraint differential current protection as a signal to touch off the protection

    針對當前電力系統中變壓器保護由於勵磁涌流鑒別理論不完善而導致的誤動率相對較高的問題，論文在分析了變壓器勵磁涌流特性和有功損耗的基礎上，提出了用變壓器正序有功功率差動作為區別勵磁涌流和故障電流的判據，並以成熟的比率制動差流保護作為內外部故障判據的變壓器主保護。
  8. In the paper, the transmission power of section constituted by the assigned branch is seen as objective function, assigning the adjustable generators both in sending system and receiving system, assigning the faults set, including the constraint conditions such as the differences between the angles of rotor and the inertia center angel of the whole system, the thermal stability of branch and node voltage, obtaining the results by using interior - point solution and line - predominant jordan

    本文提出的考慮暫態穩定約束的可用輸電能力演算法是以指定線路組成的斷面的傳輸功率為目標函數，指定送端系統和受端系統中參考調節的發電機，指定故障集情況下，以發電機轉子相對全系統慣性中心的角度差、線路熱穩定、節點電壓等構成約束條件，採用內點法和行主元約當逐行消去法求解問題的最優解。
  9. Nevertheless the system cannot fulfill the request of present satellite launch because of the out - of - date equipment, the low grade of technique application, the in - normative system interface, etc. consequently it is crucial to update the system to meet the following satellite launch campaigns

    但當前整個系統存在著設備老化嚴重，技術應用水平不高，系統連接標準不統一等弊端，由此造成了整個效率低下，設備故障率偏高，運行不夠穩定等一系列問題，為了適應后續衛星發射試驗任務的需要，迫切要求對系統進行相應的改造。
  10. The former combines enumeration and sample technique and is easy to implement, but only definite failure modes are simulated, which may be inaccuracy with bulk power system in which high order failures and protection failures are the main cause to instability

    基於蒙特卡羅抽樣的概率穩定模擬演算法可以考慮電力系統的高重隨機故障，並考慮故障間的相關性。模擬法可以模擬多重、連鎖故障對系統暫態穩定性能的影響。
  11. But indeed a good many of problem exist in the present situationof the management. according to this, this paper use the object of the borer. according to the reliability theory established the failure tree of borer system, calculated the reliability parameter of the system and every components. processed the instantaneous reliability analysis of the borer. received the eliability function of the components. based on this, established the maintain and management modeland ecnomye stimate model. and worked out the internet applications, improved the management efficiency of the employed facility, economized the devotion. the maintain and management of the borer achieved to the scientific and comunication, improved the management efficiency, possess great value of application

    針對這種情況，本文以石油鉆機為研究對象，利用可靠度理論，確立了石油鉆機的故障樹，計算了系統及各基本部件的可靠性參數，對鉆機系統進行了瞬時可靠度分析，同時，確定了石油鉆機系統的可靠度指標，得到了石油鉆機各基本部件的可靠度函數，根據可靠度函數建立了以可靠度為準則的維修管理及經濟評價模型，並編制了相應的應用軟體，提高了現場設備管理的效率，節約了經濟投入，使石油鉆機系統的維修管理達到了科學化、信息化的水平，提高了管理效率，具有較高的應用價值。
  12. From theoretical analysis, we know the existing demodulation methods have limitations as following : one is that the subtraction of the two signals frequencies will display as the result of demodulation when we demodulate two time - domain adding signals without modulating information ( fault information ) ; the other one is that aliasing phenomenon will occur as a result of getting absolute value, detection or square in the process of generalized demodulation analysis, such phenomenon will result in some superfluous frequency composition on the frequency spectrum, which will puzzle the detec tion of mechanical vibration. if the sampling frequency is selected from a suitable range, the aliasing phenomenon will be avoided ; the last one is that aliasing frequencies will be produced in zoom demodulation analysis because this algorithm cannot employ digital low - pass filtering to avert the folding frequencies of higher harmonics in the process of zoom sub - sampling

    現有的解調分析方法存在以下三種局限性：將不包括調制信息（故障信息）的兩時域相加信號，也以其頻率之差作為解調信號而解出；廣義檢波濾波解調分析中，由於取絕對值、檢波或平方過程可能產生混頻效應，在解調譜中表現為無法分析的頻率成分，並由此推導出避免這種混頻現象的采樣頻率的選取范圍，從根本上避免此類誤診斷的產生；幾種細化解調分析新演算法中，因為無法在細化分析的選抽時進行數字低通濾波，有可能會出現調制頻率的高次諧波成分發生頻率混疊而反折到低頻部分的現象。
  13. This paper presents a method of test, estimation and predication of some state parameters of the power unit in power and electric equipment, these parameters can be temperature, voltage, current and so on ; when attaining the values of these parameters at the next state, whether the power unit will go into the malfunction or not can be knew, according to the result, some measures can be made ; by controlling the values of correlative parameters, the unit could be maintained in its optimal running status ; so the damage to the power unit can be prevented, the running quality of the driving system can be guarantied, and the optimized control level of the system can be improved

    本論文提出了一種利用預測估計的方法，對電力電子設備中的功率器件的某些主要狀態參量（如：溫度、電壓和電流）進行測試、估計並預測，從而得出未來的運行狀態；然後據此判斷該功率器件是否已進入故障范圍，以便提前採取措施，通過對相關參數的調整來保證功率器件始終工作在最佳狀態；這樣，既避免了功率器件損壞的發生，又避免了驅動系統故障狀態的出現，明顯地提高了系統優化控制的水平。
  14. In theory analysis, the voltage waveforms of the 12 - pulse waveform controlled rectifier circuit and three - phase thyristor converter under fault and normal condition are analyzed and researched in detail, all the faults states are summarized and classified according to the aberrant voltage waveforms

    在理論分析方面，本文對三相橋式整流電路、 12脈波可控整流電路等大功率電力電子裝置整流電路在正常運行及故障狀態下的整流電壓波形進行了詳細分析和研究，按照電壓波形對故障狀態進行了總結和歸類。
  15. ( 4 ) applying the relationships between faults and fealtures in probability causal model, the bp neural network is improved by adding the direct connections between the input nodes and the output nodes

    （ 4 ）利用概率因果模型中徵兆與故障之間的關系，對bp網路進行了改進，增加了輸入與輸出相關節點的直接聯接。
  16. A fast algorithm for wavelet transform is also proposed and applied in the extraction of the phase change rate for complex wavelet transform of stable - state stator current, which can detect broken rotor bar faults effectively

    本文將該快速演算法應用到電機穩態電流信號復值小波變換的相對相位變化率提取中，用以診斷異步電機的轉子故障。
  17. The influence to the training circle times with number of hiding layer node 、 learning rate etc are discussed during the course of samples training. by comprehensive analyses and comparing, the comparatively rational value is adopted to be network ' s parameters

    本文在制粉系統故障及其相關故障診斷樣本訓練過程中，分析了隱層節點數、學習率等因素對網路訓練速度的影響，為網路參數合理選取提供了依據。
  18. The thesis uses sql server 6. 0 database, standard sql access interface, and oriented - object program language vc + + to implement our electric network dispatching message management system. the system can operate like this : automaticly check if having data files come ; discriminate file type ; automaticly read data into database ; rapidly give out the precise analysis results, including waveform display, fault component calculating ; select fault phase ; distinguish fault type ; precisely fault allocate ; run all kinds of database administration, like antomatic add - on, automatic deletion, amendment, inquiry by different conditions ; print all kinds of outcome and keep them into database ; share data resource by web technique ; deal with complex faults. the whole system i finished will be powerful technic support for dispatching operation

    本文採用標準的sqlserver6 . 0數據庫，標準sql訪問介面和面向對象編程工具vc + +進行編程，實現了集數據庫、分析計算、圖形化界面、網路通訊於一體的電網故障錄波信息管理及故障診斷系統，該系統能夠在每次故障后自動查詢有無數據文件的到來;能夠對傳送到調度端的數據文件分析其類型;能夠按comtrade格式自動地將大量數據信息完整地填入數據庫中;能夠進行故障選相，故障類型判別和故障精確定位;能夠快速地對故障做出精確的分析，計算各次諧波分量，有無功和視在功率，功角，序分量等;能夠對數據庫進行各項管理，如瀏覽，自動添加和刪除，修改和按各種不同條件進行查詢;能夠將計算結果，各種表格圖形列印出來和保存進數據庫中;能夠將計算分析結果通過web技術為其他部門提供共享數據資源
  19. In this paper, on the base of analyzing the reliability operation status and the reliability data of 200mw units with the reliability management information system for jingyuan power plant, the feeble link and the key part of the generation set and system are defined and the corresponding measures are adopted, consequently, is increased the fault ratio of the device we can reduce and enhance security of the power plant, which is an effective method that controls the device reliability by using the mothod of systems engineering, namely plans, organizes, corresponds, controls and supervises the diversified engineering and technic activity of the reliability during the period of the whole device life to realize the reliability aim, minimize the cost of the whole device life and improve the general level of business safety production

    本文在應用靖遠電廠可靠性管理信息系統對該廠的200mw機組運行狀況和可靠性數據進行分析的基礎上，確定了發電設備和系統的薄弱環節、關鍵部位、並採取相應的措施，從而使設備的故障率減少，使電廠的安全性得以提高。這是一種利用系統工程的方法對設備的可靠性進行控制，即對設備全壽命周期中各項可靠性工程技術活動進行規劃、組織、協調、控制、監督，以實現確定的可靠性目標，使設備全壽命周期費用最低，提高企業安全生產綜合水平的有效方法。
  20. Firstly, a relevant algorithm is presented for locating single - line - to - ground ( slg ) fault in distribution networks, fault functions are reasoned out and analyzed for single - phase and three - phase distribution lines, and criterion measure, which are based on the frequency, phase and shape characteristics of the fault function spectrums, are also presented for locating slg faults

    首先論文對三相均勻換位線路的故障定位進行了公式推導和數值計算分析，並在頻域內對故障函數的頻譜曲線幅值、相角和頻率特性進行了分析，提出了相應的故障定位判據。
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