故障影響分析 的英文怎麼說

中文拼音 [gùzhàngyǐngxiǎngfēnxī]
故障影響分析 英文
failure effect analysis
  • 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
  • 影 : Ⅰ名詞1 （物體擋住光線后映出的形象） shadow 2 （鏡中、水面等反映出來的物體形象） reflection; image...
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 析 : Ⅰ動詞1. （分開; 散開） divide; separate 2. （分析） analyse; dissect; resolve Ⅱ名詞（姓氏） a surname
  • 故障 : hitch; breakdown; stoppage; fault; faulting; accident; blunder; bug; conk; failure; impairment; i...
  1. This thesis studies the law of affecting de - noise result and the selection of the threshold and the wavelet function, the combination of wavelet and fft in the fault diagnosis of turbine - generator sets : by the de - noise anslysis of blocks and sin signals, concludes : to blocks signals, usually adopts soft threshold ; the law of affecting de - noise result is when use wavelet auto - de - noise, with the increasing of decomposed level, the de - noise result becomes worse while the level blow the 3, when the level above 3 and when uses wavelet packet, it is the other way round ; the best de - noise methods of the signal is that uses " dbl " wavelet function, three level, soft and " rigrsure " threshold

    本文研究了分解層數對消噪結果影響的規律和閾值、小波函數的選取，結合小波分析與fft分析診斷汽輪發電機組的故障。通過對brocks和sin兩信號的分析，得出：對blocks信號進行分析一般採用軟閾值；分解層數對消噪結果影響的規律為用小波自動降噪在分解層數小於3時，隨著分解層數的增加，消噪結果變好，反之，則變差，用小波包降噪時隨著分解層數的增加，消噪效果變好；適宜選用dbl小波軟rigrsure閾值自動消噪。
  2. Lastly, experimentations are carried out on chaochai 6102bq engine and the data of the thermal parameters according to different oil - apply lead angle is derived. the influence of the change of oil - apply lead angle on the rate of heat release is researched, then a reference is provided for building an accurate heat release model

    最後，在朝柴6102bq柴油機臺架上進行了試驗，對不同供油提前角下柴油機的熱工參數進行實機測試，對試驗結果進行了處理、分析，研究了供油提前角的改變對放熱規律的影響，為建立該故障下的燃燒放熱模型提供參考。
  3. The authors make a deep theoretical analysis on the system, build up the mathematical model of the triplex electro - hydraulic servo actuator system, analyze the effects of the redundance control on dynamic performance of the system and the dynamic performance of triplex electro - hydraulic servo actuator system after any trouble happens

    並對該結構伺服作動系統進行了深入的理論分析，建立了三餘度伺服控制系統的數學模型，分析了余度控制對伺服作動系統動態品質的影響，以及系統出現故障后余度伺服作動系統的動態品質。
  4. The safety of transmission line plays a important role in power system safety it is not only the requirement of ensure supply power reliability, but also the necessary precondition of enhance power system stabilization, to remove faulty line quickly and accurately, also keep non - faulty line continuous work when some transmission line faults current differential protection is a kind of simple, reliable and good - selective protection manner to any variety of transmission lines, power system development needs current differential protection apply to transmission lines, moreover the advancement of electric and communication technology enable current differential protection apply to transmission lines firstly, the paper discusses, analyses the research and application transmission line protection in detail, compare the principle and realistic presupposition of general line pilot protections secondly, because conventional current vector differential protection are influenced easily by load current and transitional resistance, in order to at the same time quicken protection act, the principle and criterion include work characteristic of differential protect based on fault component sampled values are studied, results shows that differential protect based on fault component sampled values excels general vector current differential protection in reliability, sensitivity and anti - saturation of current transformer in addition, synchronous current sampling methods at all terminals of line is analyzed and estimated lastly, the principle and criterion. also device design about current sampling values differential protection based on optical fiber communication, which apply to short transmission lines are concretely investigated,

    基於基爾霍夫定律的電流差動保護無論對於何種形式的輸電線路都是一種簡單、可靠、選擇性強的保護形式，電力系統的發展使得電流差動保護應用於線路保護成為需要，而電子、通信技術的發展使得電流差動保護應用於輸電線路成為可能。首先，本文對目前線路保護的研究和實際應用情況進行了討論和分析，比較了常用線路縱聯保護的實現原理和實現條件及優缺點。其次，針對常規相量電流差動保護易受正常負荷電流和故障過渡電阻影響的缺點，同時為加快差動保護的動作速度，對基於故障分量瞬時采樣值電流差動保護的原理、判據、動作特性等作了討論和分析，結果表明基於故障分量瞬時采樣值電流差動保護在可靠性、靈敏度、抗電流互感器飽和方面明顯優于常規相量電流差動保護，對電流差動保護各端的同步采樣方法和數據通信也進行了分析和評價。
  5. The paper puts forward main effects on the weaving efficiency of air - jet loom with some measures to promote weaving efficiency suggested based on trouble shooing record of air jet loom in production and on filling stop motim analyzing

    摘要根據實際生產中噴氣織機的故障停車記錄，分析緯停形成的原因，提出了影響噴氣織機織造效率的主要因素和提高織造效率的措施。
  6. An automated de - noising algorithm based on the energy of wavelet packet not donoho ' s threshold algorithm is established. a gear feature vibration signal extraction method using the wavelet packet energy is proposed, which can separate gear meshing vibration, noise vibration and gear fault vibration signal from the original gearbox case vibration signal. basis pursuit ( bp ) algorithm is introduced into the filed of mechanical signal de - noising and feature extraction for the first time

    第三章擺脫了donoho的閾值消噪思想，從能量的角度建立了基於小波包的自動消噪演算法；提出基於小波包能量分佈的齒輪故障特徵信號提取方法，可以將齒輪嚙合振動信號、干擾振動信號以及故障沖擊振動信號從原始齒輪振動信號中分離出來；首次將基追蹤消噪演算法引入到機械故障信號的消噪與特徵提取上，通過對齒輪故障信號的消噪，表明了它的有效性，並對影響該方法實際應用效果的因素進行了全面的分析，同時也指出了該方法存在的局限性。
  7. The problem about neutral - point - grounding mode is an all - around technical problem which associated with not only power system reliability ， insulation coordination ， electromagnetic interference ， but assault safety 。 in china ， the neutral grounding modes of the 10kv net involved of none grounding, grounding by arc suppressing coils, resistance grounding or reactance grounding in the past 。 with the development of civic power network ， low resistance grounding mode was used to restrain the over voltage, particularly in guangzhou, shanghai ， beijing ， and zhuhai etc. it was reported that the over - voltage level of low resistance grounding mode is lower than that of arc suppressing coil mode, but the operation carried out the other way 。 at substations in guangzhou and shanghai it was found that the low resistance grounding mode is successful 。 but in some areas ， such as zhuhai ， substations grounding with low resistance revealed some problems ， including power supply reliability rapidly dropping ， transmitting line often tripping ； and person safety being threatened 。 so interiorly the grounding mode selection of the 10kv network was disputed, which mainly focused on the fault form of 10kv net grounding, the apply area of suppressing arcing coil grounding mode, power supply reliability level of the two modes, person safety, communication interfere and the workload of maintenance

    爭議點主要是在10kv電網接地故障的形式、消弧線圈接地的應用范圍、兩種運行方式供電可靠性的高低、人身安全、通訊干擾和運行維護工作量等諸多方面。 11 17本論文就是針對以電纜為主的城區10kv電網中性點接地方式的選擇問題進行研究。論文首先對10kv電網的中性點運行各種方式進行分析，比較各方式的特點，然後以重慶儲奇門變電站10kv電網的實際參數來建立數值計算模型，在考慮了電網接地電容電流變化、中性點電阻取值大小、接地點接地電阻值變化等多種影響因素的情況下，對中性點經消弧線圈接地和經小電阻接地方式下電網的過電壓水平和接地點短路電流大小進行了數值計算，其計算結果與電科院所作現場試驗進行了比較。
  8. This text draws the basic principle of infrared diagnoses based on the primary knowledge of infrared radiation, and analyse the imaging principle of infrared devices ; from the view of infrared diagnostic technology we discuss the fault models and the principium of infrared diagnosis on electrical equipments ; then this paper research the diagnosis of electrical equipments fault by using infrared devices, obtain the hot picture atlas of equipment fault and analysis the hot picture atlas ; the text analyse the various kinds of possible factor which might effect the results of infrared diagnosing in electrical equipments, and propose correspondingly countermeasure against these factor in order to improve the accuracy of measurement ; finally, by using infrared diagnosing techniques analyse and diagnose the interior or exterior fault in part of transformers and arresters in electric network of si chuan, and the results obtained from the text accord with practice

    本文在紅外輻射的基礎知識上引出紅外診斷的基本原理，分析了紅外成像儀的成像原理；並從紅外診斷的角度研究了電氣設備的故障模式及其診斷的機理；研究了利用紅外熱像儀對電氣設備的故障進行診斷，獲取設備故障熱像圖譜並進行熱像圖譜的分析；對影響電氣設備紅外技術診斷結果的各種可能因素進行了分析探討，並針對這些干擾因數，提出了相應的對策，以提高檢測的準確性；論文最後應用紅外熱成像技術對四川電網中的部分變壓器和避雷器典型的內外部故障進行了診斷分析，得到與實際相符的結果。
  9. The influence of stray inductance in the module circuit to turn - off transient over voltage of igct has been investigated systematically, the surge current calculation has been done by simulation, and the short circuit failure once occurred in experiment has been analyzed by computer simulation, reproduced the breakthrough failure happened in experiment by means of simulation

    充分利用計算機模擬的優勢，詳細分析了模塊電路雜散電感對igct關斷過電壓的影響，進行了短路浪涌電流計算，對試驗中發生的短路故障進行計算機模擬分析，重現了試驗中出現的誤觸發貫穿短路故障現象。
  10. The main works and innovation can be summarized as follows. 1. facing maintenance policy decision - making, the dissertation researches on failure mode effect analysis and failure distribution analysis

    論文主要研究內容和創新成果如下: 1 、論文面向維修策略決策，研究了裝備故障模式、影響分析以及故障分佈分析等問題。
  11. On the basis of a vast amount of data and materials, in this article, the regression analysis and the optimization technique are well combined to finish the analysis process of optimization of the law of distribution of automobile ' s failure. considering every aspect that can influence the automobile reliability, this paper determines and analyses the individual reliability indexes that can reflect the reliability situation

    本文在大量數據和資料的基礎上，把回歸分析技術理論和優化技術有機地結合起來，實現汽車故障分佈規律優化的分析過程，充分考慮影響汽車可靠性的各方面因素，確定並分析了能全面反映汽車可靠性狀況的可靠性單項指標。
  12. Malfunctions can be diagnosed using infrared thermography without affecting the work state of tested equipments, thus the diagnostic accuracy can be improved. infrared thermography, just as often, improves electronic fault diagnosis by isolating the malfunction to specific areas of the circuit board, what is more, it usually does point directly to the failing component. thermography even can rapidly diagnose up to hundreds of elements on one pcb at one time, without requiring the operator to know the circuit principle very well, which can reduce the workload greatly

    紅外故障檢測儀可以對電子設備進行在線測量，檢測時不會影響待測設備的正常工作和頻率特性，這對高頻電路的檢測尤其方便，且能提高診斷的準確性;他通常能指出電路板上的故障區域，甚至經常能直接找出故障元器件，這樣就提高了維修質量;並且能在不需要檢測人員對電路原理有深入理解和分析的情況下，對同一塊電路板上的數十隻甚至數百隻器件同時進行快速診斷，這就大大減少了維修人員的工作量，提高了維修人員的工作效率。
  13. Abstract : this article analyzes the invalid phenomena, effect and harm of an serving radar on naval vessel, the modularizing design method the improvement with the transmitter, as a result, finds out an effective way to improve the reliability of the serving equipment is found out

    摘要：分析了某現役艦載雷達的發射機故障的失效現象、影響和危害，採用模塊化的設計方法，對發射機進行改進，找到了一種提高現役裝備可靠性水平的有效途徑。
  14. Because affected by the type of lines, fault resistance and two sides systems ， fault analytical location has lower precision, but it has no dead line and is more better accurate if the fault location is close to the line terminal

    故障分析法由於受線路類型、過渡電阻、兩端系統的影響測距精度較差，但故障分析法不存在測距死區，尤其對近區故障的測距較為準確。
  15. A lot of papers about the report of probabilistic risk assessment of daya bay npp and system manuals has been read by the author and let as the basis. in this paper, based on the reliability analysis methods of failure mode and effect analysis and failure tree analysis, according to the result of event tree analysis of probabilistic risk assessment report of daya bay npp, the top events of the fault trees of reactor protection system and the success criteria were established. by using risk - spectrum procedure, the unavailability and the minimal cut - sets ( mcs ) of the fault trees were obtained

    本文在閱讀了大量的大亞灣核電站pra報告和各種系統手冊等資料的基礎上，採用fmea （故障模式和影響分析）和fta （故障樹分析）可靠性分析方法，依據大亞灣核電站pra事件樹分析的結果，建立了以緊急停堆失效和專設安全設施驅動失效為頂事件的故障樹，利用risk - spectrum程序，對所建的故障樹進行定量分析，計算，得到系統故障樹的失效概率和最小割集，從而為大亞灣核電站可視化風險分析軟體提供數據支持。
  16. In the dependability improvement process, we used many kinds of methods, such as dependability improvement analysis, dependability forecast, fault modeling effect analysis, dependability qualification test etc. it verified the evident improvement in the jyl - 6 weather radar ? dependability. the point estimate value is improved from 77. 7 hours to 432. 4 hours and the mtbf value reaches 144 hours. in our country, it is the first time that the airborne radar ? dependability criteria exceed 100 hours

    在可靠性增長過程中通過可靠性增長方法分析、可靠性預計、故障模式、影響分析及可靠性鑒定試驗驗證等手段證實可靠性增長后， jyl - 6氣象雷達可靠性指標點估計值由77 . 7小時提高到432 . 4小時， mtbf置信下限達到144小時，在國內實現了機載雷達可靠性指標首次突破100小時。
  17. A fmea failure mode and effects analysis is an inductive bottom - up method of analyzing a system design or manufacturing process in order to evaluate the potential for failures

    故障型式及其影響分析failure mode and effects analysis ， fmea是一種由下而上的歸納式系統分析或流程分析方法，用來評估潛在性的錯誤。
  18. A decision model of maintenance ways based on rcm logic analysis is established. then maintenance ways of equipments are made according to the result of failure mode effect analysis. finally maintenance interval is calculated and confirmed after the related algorithm is chosen according to the army ’ s practical application

    建立了基於rcm邏輯決斷分析的裝備維修方式決策模型，並根據裝備故障模式和影響分析的結果確定裝備的維修方式，再根據具體裝備選擇相關演算法，計算裝備合理的維修間隔期; 3 、研究了裝備維修級別決策技術。
  19. Stress - strength interference model of structure reliability is introduced to analyze human reliability. the decrease speed of strength with time is studied by the human stress - strength interference model, and its probability density function is derived. similar to engineering reliability analysis method, ucav system reliability diagram and fault tree are presented, fmeca is also performed

    論文的第二部分研究無人作戰飛機系統的可靠性分析，在對人的差錯的原因深入分析的基礎上，建立了人的通用差錯模型，借鑒結構可靠性分析方法，建立了人的可靠性的應力強度模型，推導了強度隨時間下降速率的概率分佈；運用工程可靠性分析方法，建立了無人作戰飛機系統的可靠性框圖、故障樹，並且做了人的差錯的故障模式影響分析。
  20. Fmea ; fault modes and effects analysis

    故障模式與影響分析
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