故障頻率 的英文怎麼說

中文拼音 [gùzhàngbīnlǜ]
故障頻率 英文
failure density function
  • 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
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 故障 : hitch; breakdown; stoppage; fault; faulting; accident; blunder; bug; conk; failure; impairment; i...
  • 頻率 : frequency; rate
  1. This method of diesel engine fault diagnosis is feasible theoretically. while the fault diagnosis system using this method is rare, just because the crankshaft instantaneous angular acceleration measurement is demanding, such as, good frequency response, high precision

    這種柴油機故障診斷的方法在理論上是可行的，但目前這種成型的系統不多，究其原因是測量曲軸的瞬時角加速度需要系統具有良好的頻率響應特性與高精度。
  2. This paper proves that the changes of pre - compression on the windings have effects on their natural frequencies and derives their relation, which provides the experimental and theories foundation for fault diagnosis of large - scale electric transformers

    通過對大型變壓器繞組進行振動實驗和根據建立的變壓器繞組軸向振動數學模型的理論推導，闡明了變壓器繞組預緊力的變化與其固有頻率變化之間的關系，這為大型變壓器的故障診斷提供了理論與實踐依據。
  3. Among the many testing methods of analog and mixed signal circuits booming up in recent years, the pseudorandom testing technique is easier to generate testing stimuli and the current - based testing method could magnify the response differences between fault - free circuits and faulty circuits

    近年來提出的很多種模擬及混合信號電路測試方法中，偽隨機測試法易於產生測試激勵，基於電流的測試法能使正常電路和故障電路的頻率響應的差別增大。
  4. Through analysising the characteristics of the power system with floating neutral point deeply, the paper puts forward a new plan of single - phase to ground fault line selection on the base of s ' s signal injecton method and gives the hardware and software design. in this design, the high speed sampling and data processing is carried out through using dsp processor ; the large electrice current is drived through the application of a high - performance audio power amplifier and transformer ; the communication between host computer and detectors is realized through rs485 bus technology ; the difference multilevel frequency - selected amplifier is designed and the feeble signal of space is sampled on the base of the theory of magnetic induction ; the interface between dsp and exterior chip and rs485 interface logical is designed through using fpga ; the using of lcd module and keyboard interfacing chip makes the interface between human and machine ; the programme of host computer and detectors is designed through using blocking design method

    在本設計中，採用高速的dsp處理器，實現了對故障特徵信息的高速採集與處理;採用大功率的功放晶元與變壓器配合的方法，實現了大電流信號的驅動輸出;採用485總線技術，組建了裝置主機與多探測器之間的主從式通訊網路，實現了多干擾條件下裝置主機與多探測器的可靠通訊;設計了差分式多級選頻放大電路，採用磁感應的方法實現了對空間微弱信號的接收;利用fpga技術，實現了控制器與多外設的介面及數字信號的串並轉換;採用了先進的lcd液晶顯示模塊及鍵盤介面晶元，設計了人機信息交互的介面;採用了模塊化的軟體設計方法，開發了裝置主機及探測器的軟體程序。
  5. 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。
  6. The main section of the large - size bearing trouble diagnosis instrument is a microprocessor. it can collect, save, analyse data preliminarily and transfer datum to computer on the work sport

    開發易於攜帶、方便現場採集的具有較高采樣頻率、大存儲容量的回轉支承故障檢測儀，以滿足現場採集回轉支承振動信號是十分必要的。
  7. 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。
  8. Research on the fault detection system for high - power rf equipments

    射頻大功率設備故障檢測系統的實現方案
  9. Electrical and electronic appliances, as well as mechanical equipment, act up and even fail at a rate much higher than average. some of these problems " fix themselves " later

    電氣和電子產品，以及機械設備，出故障的頻率遠高於它的平均水平.而且其中有一些故障在無人問津的情況下竟自動修好了。
  10. Organisation audit : it reviews the content and frequency of the preventive maintenance, the response time to failures, the reporting, the escalation procedures, the follow up of the issues, the structure of the maintenance organization, the spare part management, the adaptation of the maintenance to the machine specificities and history

    系統核查：審核定期檢修的內容和頻率、故障反應時間、報告、擴張程序、事項的跟蹤、檢修程序的結構、備件的管理、檢修是否與機器的性能和歷史相符合。
  11. Then the difference between the output of the trained neural networks and that of the actual system is used as a residual, which detects the sensor fault. the diagnosis can then be performed by further exploiting the information provided from the residual signals according to certain rules introduced in detail in the thesis. simulating results show that the method can isolate any fault of the sensors in any input types and normal work frequencies

    模擬結果表明，基於神經網路觀測器的故障診斷方法在系統正常工作頻率范圍之內，不受系統輸入類型和故障的類型的影響，只要故障對系統的特性發生影響（系統參數漂移3 ） ，通過神經網路觀測器的殘差判別函數可以診斷出故障。
  12. First, the system operation conditions that include three input types ( square, sinuous and triangle ) with different frequencies ( l / 250hz, l / 5hz and 1hz ) are discussed. in fault detection processes, we construct 4 three - layer bp neural networks to learn the normal states of the system. the outputs of trained neural networks are as the estimate values of the sensors

    本文詳細研究了在這種情況下的故障診斷問題，針對某液壓系統，分析了系統在方波輸入、正弦輸入、鋸齒波輸入下，分別在正常工作頻率、極限工作頻率以及接近極限工作頻率等9種工作狀態的特性，以及在這9種工作狀態下，運用神經網路觀測器進行傳感器故障診斷研究。
  13. The algorithm is also applied in the broken rotor bars detection in squirrel cage induction machines, which is dependent on detecting the twice slip frequency modulation due to the speed or torque in the stator current, and the rotor bar faults can be detected effectively without some preprocessing

    指出可以利用信號的小波脊線來提取頻率隨時間連續變換的信號的瞬時頻率，並將該瞬時頻率提取演算法成功地應用到異步電動機定子起動電流信號的分析中，有效地提取出了轉子斷條故障特徵。
  14. Assisted with the sensitivity of the linear analog circuits, the feasibility of parametric faults detection was analyzed through the maximum fault errors acquired at the sensitive frequencies, a stimulation matrix and its stimulation expression were put forward on the test points information

    摘要從線性模擬電路靈敏度的概念入手，分析了通過獲取敏感頻點激勵下的最大故障誤差來檢測電路參數故障的可能性，提出了一種針對測試頻率和測點信息的激勵矩陣。
  15. Neural networks method for diagnosing faults of rolling bearing in electrical machines with frequency signatures

    運用頻率指標診斷電機軸承故障的神經網路法
  16. Therefore, research on integrated process control system, which includes such roles as control, monitoring, diagnosis, proves to have important theoretical and practical value. fault diagnosis, provides scientific methodology to detect and diagnose system exception, and find out fault source, frequency, severity, tendency etc., so as to take timely and effective solution

    故障診斷就是監視控制系統進行故障檢測與診斷，並對故障的原因、故障頻率、故障的危害程度及趨勢預測等內容進行分析判斷，為確診故障點、及早採取維修、防護等補救措施提供科學的決策依據。
  17. In the first session the fans vibration on - line monitoring system is realized with vc language, also compile auto power spectrum density function, cross power spectrum density function, autocorrelation function and cross correlation function etc spectral analysis function to carry through simple offline fault diagnosis

    首先用穩定性強、擴展性好的vc + +語言開發了通風機振動在線監測系統，並編寫了自功率譜密度函數、互功率譜密度函數、自相關函數和互相關函數等頻譜分析函數來進行簡單的離線故障診斷。
  18. When this fault is cutted off and the breaker is reclosed, this scheme ca n ' t start by mistake. the availability of this scheme is proved with matlab test. the single phase high - impedance grounding fault is settled properly

    Matlab模擬分析證明了該方案耐受過渡電阻的能力強，在故障切除和重合閘時不會因出現的暫態信號而誤啟動，不受系統振蕩、頻率偏差的影響，克服了常規保護靈敏度不足的缺點，較好地解決了單相高阻接地故障的難題。
  19. Collection and analysis critical equipment machine downtime data, implement equipment improvement project for increase output

    每月統計，分析設備的停機率.組織對故障頻率高的設備或部件進行原因分析和技術改造，以提高設備的產能
  20. Furthermore, the article calculated cyclic times when the inner and outer circles of bearing 6202 meet and the failure frequency when the inner and outer circles and steel balls make simplex deficiency

    本文計算了6202軸承內外圈接觸循環次數和內外圈、鋼球產生單一缺陷時的故障頻率的大小。
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