fault diagnosis time 中文意思是什麼
fault diagnosis time
解釋
故障診斷時間-
In on - line diagnosis, time series analytic approach is used to take delivery of fault symptoms
在絕緣在線診斷中，本文嘗試了引入時序分析法提取故障徵兆。 -
We illustrate the wavelet package analysis that can obtain the time - frequency distribution figure of noise signal, which can be used to define gray - image. through image - average, we can get the standard time - frequency distribution images of different main bearing gap. based on that, a main bearing wear fault diagnosis model using image matching is set up
然後對圖像進行平均，得到主軸承在不同間隙狀態下的「標準」時頻分布圖，建立了柴油機主軸承間隙圖像匹配的故障診斷模型，匹配時所用的參數為兩幅圖像之間的歐氏距離。 -
The reassigned smoothed pseudo wigner - ville distribution ( rspwvd ) is introduced, which has less interference and higher resolution than other time frequency distributions like wigner - ville, choi - williams etc. it is used to detect the multi - knocking of engine such as cylinder, piston pin, valve, crank bearing, connecting rod bearing and jib knocking. a new fault diagnosis technique based on the rspwvd for the engine multi - knocking problem is proposed. by comparing the bispectrum and bicoherence of the gear vibration signals, it is demonstrated that bispectrum has an advantage over bicoherence for feature extraction of such signals
第四章首次引入一種重分配方法，得到干擾項少而解析度高的重分配平滑偽魏格納維爾分佈（ rspwvd ） ；對發動機曲軸主軸承響、連桿軸承響、活塞銷響、活塞敲缸響、氣門響和挺桿響等常見機械異響故障振動信號特徵進行了全面地比較分析；通過對各種異響故障特徵信號的分析研究，提出基於rspwvd的發動機多異響故障診斷策略，利用該策略可以準確識別不同的發動機異響故障。 -
The importance of gearbox - fault - diagnosis consists not only in cutting time and cost of repairing, but also in raising diagnosing accurate, which improves repairing quality and acquires economic benefits dramatically
研究齒輪箱故障診斷技術意義重大，不僅可縮短維修時間、降低維修成本，還可提高診斷準確性和維修質量，創造可觀的經濟效益。 -
This paper is based on the engineering background of the real time fault diagnosis of the deashing system in zhenjiang jianbi power plant. this system, as the subsystem of a typical distributed control system, can achieve the processing automaton and malfunction alerting automaton. during writing this paper, the following work has been done :
本文基於實際工程背景，研究與探討了鎮江諫壁火力發電廠高濃度除灰控制系統中的柱塞泵灰水泄漏實時檢測系統，該系統是典型的dcs控制系統的一個子系統，使電廠高濃度除灰車間實現了故障報警自動化。 -
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。 -
Introduced working state real time monitoring and testing, fault diagnosis system and its key instrument, including the working principle of torsion, axial force, rotary speed as a whole sensor, the main parameter index of oil well using progressing cavity pump
介紹了螺桿泵採油系統工況實時監測與故障診斷系統及其核心儀器：扭矩、軸向力、轉速一體化傳感器工作原理、主要參數指標。 -
Abstract : introduced working state real time monitoring and testing, fault diagnosis system and its key instrument, including the working principle of torsion, axial force, rotary speed as a whole sensor, the main parameter index of oil well using progressing cavity pump
文摘:介紹了螺桿泵採油系統工況實時監測與故障診斷系統及其核心儀器：扭矩、軸向力、轉速一體化傳感器工作原理、主要參數指標。 -
The new samples and the knowledge database of fault diagnosis and fault prediction are added in the process of software development. knowledge acquirement module 、 diagnosis module 、 prediction module and interpretation module are established at the same time
在該軟體的開發研究過程中，收集了鍋爐故障診斷與預測樣本，增加了鍋爐故障預測知識，拓展了原有的鍋爐故障診斷知識庫，建立了知識獲取模塊、故障診斷與預測模塊、故障解釋模塊等。 -
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。 -
Diesel engine fault diagnosis based on bp neural network and time series analysis
神經網路與時間序列分析的柴油機故障診斷 -
In order to solve the real - time monitoring and fault diagnosis problems of the huge key equipment, continuous operating equipment and high - security equipment in fields, development of on - line oil monitoring system is becoming very important in the area of condition monitoring
為了解決大型關鍵設備、連續作業設備和安全性要求高的設備的實時現場監測與故障診斷問題，研製新型在線油液監測系統成為設備監測技術研究與開發的熱點。 -
Open networked manufacturing mode, networked real - time monitoring, nc equipment e - service system and framework and function of networked remote fault diagnosis as well as networked application in metalforming machinery have been described
摘要闡述了開放式網路化製造模式、網路化實時監控、數控設備e -服務系統和網路化遠程故障診斷的構建與功能，以及鍛壓機械的網路化應用。 -
At the same time, this paper analyse the crucial technology in manufacturing execution system ( mes ), such as fault diagnosis, expert system and the real time inspection etc, which introduce the system connect fieldbus to the enterprise intranet and internet and offer theoretical guidance for process industrial enterprise to implement advanced production management technology
同時就生產執行系統（ mes ）中的關鍵技術，故障診斷、專家系統、實時監測等技術進行了詳細分析。同時詳細介紹了系統從底層生產現場的現場總線控制網，到企業的內部網（ intranet ）以及最終登錄internet的整體構想和實施方案，為流程工業企業實施先進的生產管理技術提供了理論與技術指導。 -
The development and present of fault diagnosis of power transformer are surveyed in detail, and the matter is pointed out. the faults cannot be found in time and fault location cannot be confirmed. this paper proposes a concept of diagnosis of transformer based on electric quantities
本文首先闡述了變壓器故障診斷的發展和現狀，指出目前變壓器故障診斷中存在的不足：一方面具有滯后性，即要到變壓器故障已經發生時才能夠判斷出來；另一方面具有不確切性，即能實現對故障的定性分析但不能實現故障的定位。 -
At the same time, the diagnosing method based on the lubricating oil had be combined with the common analytical approaches, such as temperature rise, vibration and abrasive particles, in order to enhance the foresight, accuracy and immediacy of fault diagnosis
研究表明將以潤滑油為主體的設備故障診斷技術與設備的溫升、振動和磨粒分析等常用方法結合起來，能有效的提高設備故障診斷的預知性、準確性和及時性。 -
The number of the hidden layers of mul - tilayer perceptrons ( mlps ) is analyzed, and three - layer perceptrons neural network is adopted ; by analyzing the mechanism of the neural cells in hidden layer, a method for combining genetic algorithm and bp algorithm to optimize the design of the neural networks is presented, and it solves the defects of getting into infinitesimal locally and low convergence efficiently, it can also solve the problem that it can usually obtain nearly global optimization solution within shorter time through using genetic algorithm method lonely ; several examples validate that this algorithm can simplify the neural networks effectively, and it makes the neural networks solve the practical problem of fault diagnosis more effectively
對多層感知器隱層數進行了分析，確定採用三層感知器神經網路;通過對隱層神經元作用機理的分析，引入了遺傳演算法與bp演算法相結合以優化設計神經網路的方法，有效地解決了bp演算法收斂速度慢和易陷入局部極小的弱點，還可以解決單獨利用遺傳演算法往往只能在短時間內尋找到接近全局最優的近優解的問題;通過實例驗證了這種演算法能夠有效地簡化神經網路，使神經網路更加有效地解決實際的故障診斷問題。 -
The simulative tests by computer and experiments by test - bed all can indicate that the established modularization and multi - layers fault diagnosis system for desams is not only simple but also specific and real - time
計算機模擬和臺架實驗表明，所建立的「模塊化」 ，多層次電液伺服道路模擬試驗臺的故障診斷系統具有結構簡單、任務明確、實時性強等特點。 -
The software system includes data acquirement, real - time analyse, device - examination, accessorial fault - diagnosis, system parameter setting and data management
整個軟體系統由實時頻譜分析、現場點檢數據採集和管理、專家輔助診斷系統、系統參數設置和管理等部分構成。 -
Fault diagnosis time
故障診斷時間
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