故障率試驗 的英文怎麼說

中文拼音 [gùzhànglǜshìyàn]
故障率試驗 英文
failure rate test
  • 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
  • 試 : 名詞（古代占卜用的器具） astrolabe
  • 驗 : 動詞1. （察看; 查考） examine; check; test 2. （產生預期的效果） prove effective; produce the expected result
  • 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...
  • 試驗 : trial; experiment; test
  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. Abstract : analyzing the general method of temperature screening for assembly in our country, combined with the experience of accelerated testing abroad, we proposed a definition method of parameters, such as temperature range, rate of change of temperature and dwell time. in this paper, we introduce some experience in a temperature screening of a mainboard

    摘要：分析了目前國內在組件溫度篩選方面的一般做法，吸收國外加速試驗的經驗，並借鑒定量篩選中根據成效率確定無故障檢驗時間的方法，提出了組件溫度篩選中各參數（如溫度范圍、溫度變化速率、高低溫保持時間和循環數）的確定方法，並以一種稅控加油機主板的溫度篩選為例，介紹了組件溫度篩選方法研究中所總結的一些經驗。
  3. To solve these problems, this paper gives the gap sensor ’ s fault model, finds out the weaknesses, and designs a bit fault detecting system which is tested by experiment, improving the maintenance efficiency

    本文對間隙傳感器進行故障建模，找到間隙傳感器中的薄弱環節，針對這些薄弱環節設計了間隙傳感器的bit故障檢測系統，最後通過實驗對系統進行了測試，提高了維護的效率。
  4. 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。
  5. The 6psd30 - 1 fuel injection pump test stand is the 1970 ' s product and leave unused. its electrical control part is made up of large discrete components with low - test sensitivity, inconvenient setting and adjustment, high trouble rate. moreover, its circuit components are aging and spoiled

    6psd30 - 1型電子控制噴油泵試驗臺是七十年代的產品，其電氣控制部分電路採用大量分立元件構成，測試靈敏度低，設定調整不方便，故障率高，而且電路元件大多老化、損壞，現處于閑置狀態。
  6. Using this equipment, the residual current protection test and operation reliability test were be done. and the failure reason of rcd was analysed. the method to improved the reliabilty level of rcd was introduce. so the reliability study can be processed

    應用剩餘電流動作保護器可靠性試驗設備進行了成功率驗證試驗和操作故障率可靠性驗證試驗，分析了剩餘電流動作保護器的故障原因，提出了提高剩餘電流動作保護器可靠性的方法，從而真正地將可靠性研究工作付諸實施。
  7. As a basic energy of our counrry. the determination of calorific value of coal is very important to the excavation and efficient exploitation of energy. the traditional method of determination has many complicated coursese and always needs much work made by man. so the research of automatic calorie meter makes significentthrough the detailed analysis of principle and method of measurement, an automatic measuring instrument controlled by microcomputer is designed in this paper in order to take the place of manual operations. the instrument can almost do every operation by itself, such as the control of experimental progress, data collection, data computation and the printout of experimental results. furthermore, a distributing system of measurement building on field bus is designed too. under the control of personal computer, several calorie meters can work independently and simultaneously. on the other hand, a powerful measuring and control software is developed using visual computer language - visual basic and visual c + +

    設計不但能自動完成整個實驗過程的控制和實驗數據的自動採集，並且能自動完成數據計算和實驗結果的列印輸出。在此基礎上，本文進一步設計出了基於現場總線技術的分散式測試系統，將多臺自動熱量計置於一臺pc機的控制之下，極大地提高了測量的效率。並利用可視化語言visualbasic和visualc + +設計出功能強大的系統監控軟體，以動畫和實時曲線的形式動態模擬出整個實驗的進程（包括故障顯示） ，使得整個測量工作自動化、智能化。
  8. Fourth, the experiment of cantilevering beam and the digital calculation reveal that frequency is easy to get and can reflect the state of the cantilevering beam. under certain conditions, the feature parameter can be used to determine whether the cantilevering beam has fault, where the fault locates and the extent of impairment

    （ 4 ）懸臂梁試驗及數值計算表明，頻率易於提取，且反映了懸臂梁的狀態，以其為特徵參數，結合bp人工神經網路，在特定條件下，可以診斷懸臂梁是否有故障，故障的位置和損傷程度。
  9. Since that the choosing line hardware for the neutral ungrounded system has just passed part of the dynamic simulative test, matlab software was chosen to do a lot of simulative tests on single phase - to - grounding fault. and the simulative sampling ratio is almost the same as the hardware ' s. because there is a low wave filter in the hardware, i choose the db15 wave - let to carry out the multidimensional decomposition on the sample by the method of one dimension discrete wavelet in order to obtain low frequency signal including the high frequency transient information on single phase - to - grounding fault

    鑒于實驗室已有的小電流接地系統選線硬體的研製只通過了實驗室里的動模試驗，故選用matlab軟體對小電流接地系統進行大量的單相接地故障模擬試驗，模擬的采樣率和硬體基本一致，由於硬體中帶有低通濾波器，故在進行采樣數據的morlet小波分析時先採用db15小波對采樣進行一維離散小波的多尺度分解，使得分解得到的低頻信號剛好包括了小電流接地系統單相接地故障時的暫態高頻信息，然後對這一信息再繼續進行小波演算法分析，分析結論表明利用變換后的實部、虛部和模值能夠較準確的實現單相接地故障時的故障選線和暫態高頻分量的提取。
  10. Reliability testing - compliance tests for constant failure rate and constant failure intensity

    可靠性試驗.恆定故障率和恆定故障強度的審核試驗
  11. Equipment reliability testing - compliance test plans for failure rate and mean time between failures assuming constant failure rate

    設備可靠性試驗恆定失效率假設下的失效率與平均無故障時間的驗證試驗方案
  12. Equipment reliability testing - part 6 : tests for the validity of the constant failure rate or constant failure intensity assumptions iec 60605 - 6 : 1997

    設備的可靠性試驗.第6部分:對恆定故障率或恆定故障密
  13. In large rotating machinery using filmatic bearing ( turbogenerator, air compressor, etc. ) there is a potential trouble from impefect installation or running conditions, a metals " contact between rotors and shells. the trouble is usully called rubbing. the advantage of ae technologe in the rubbing diagnosis and early detection is showed. instead of classical ae characteristic parameters ( counts, amplitude, energy, duration and the other ones ) a new feature extraction by frequency analysis of ae envelop signals is discussed. both research of ae process and field experements indicate that periodic components in the envelop spectrum related to rotational speed increase evidently at the beginning of rubbing production, hence are highly sensitive to the rubbing fault diagnosis. according to the new design an acoustic emission equipment for the rubbing diagnosis named buaa ae testing system is developed and described

    汽輪發電機、空氣壓縮機等採用油膜支撐的大型轉動機械，由於安裝或運行中的原因，在轉子旋轉過程中，可能和器壁發生輕微的摩擦和碰擊，簡稱碰摩.聲發射技術在碰摩發生特別是故障早期診斷上有優越性.本系統的特點是沒有沿用傳統的計數、幅度、能量和持續時間等聲發射特性參數，而是在聲發射包絡信號的頻率分析中進行特徵提取.聲發射發生的過程分析和現場試驗都表明這種方法對碰摩檢測很敏感，在碰摩發生的起始階段，包絡譜中與轉速同步的周期性分量顯著增加.根據這種新的設計思想自行研製了buaa碰摩聲發射檢測儀並對此作了介紹
  14. According to the sample theory, applied the time terminated test plan, the reliability compliance test plan was brought forward. the reliability compliance test plan was divided into two parts, residual current protection test and operation reliability test. in this paper, the preparation of sample, the test plan, the failure criterion and the program of reliability test were introduced

    本文由抽樣理論，採用定時截尾試驗方案確定了剩餘電流動作保護器的可靠性驗證試驗方案，剩餘電流動作保護器的可靠性驗證試驗由成功率驗證試驗和故障率驗證試驗組成；本文還給出了剩餘電流動作保護器可靠性驗證試驗的試品準備和試驗條件、試驗檢測方法、失效判據，以及可靠性驗證程序。
  15. The experimental results illuminate the hierarchical test generation algorithm can greatly decrease the scale of test sets ( about 66 % ), but the fault coverage and time performance are lower than gate - level test generation

    實驗數據表明分層測試產生演算法能大大壓縮電路測試集（約為66 ） ，而故障覆蓋率有略微下降，時間性能也有些許降低。
  16. The method has special obvious advantages to diagnosis the faults when several faults exist simultaneously. the paper constructs a three - layer forward neural network to diagnosis the fault and trains the network with characteristic eigenvectors extracted through the wavelet packet analysis, when training the net using the method of adding inertia item and the bp algorithm of conjugate gradient method, at the same time adapt the initial data of the network through the test

    同時，文中還構造了三層的前向神經網路，以小波包分析提取的故障特徵向量作為網路的訓練樣本數據，採用加慣性因子、共軛梯度法和迭代過程中改變學習率的反向傳播演算法來對神經網路進行訓練，並採用試驗的方法調整神經網路的初始值。
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