故障檢驗法 的英文怎麼說
中文拼音 [gùzhàngjiǎnyànfǎ]
故障檢驗法
英文
defectoscopy- 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
- 檢 : Ⅰ動詞1 (查) check up; inspect; examine 2 (約束; 檢點) restrain oneself; be careful in one s c...
- 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
- 法 : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
- 故障 : hitch; breakdown; stoppage; fault; faulting; accident; blunder; bug; conk; failure; impairment; i...
- 檢驗 : checkout; test; examine; inspect; verify; survey; check;checking;testing;[英國]jerque(指檢查船舶...
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By the result of these experiments, acoustic emission ( ae ) was chosen to use in the research. at the same time, we analyse the phenomenon of acoustic emission at the base of theory, the characteristic signal of acoustic emission which comes from the faulty bearing at the angle of application, and the expression of the characteristic signal. contrast was also made on the data achieved separately from vibrational signal and ae signal, and it is proved that ae is feasible and available to the diagnosis to the fault of the rolling bearing
主要工作有如下幾方面:對本段前期實驗室階段採用的振動法幅值域無量綱處理進行了分析,並研製了現場所使用的滾動軸承故障檢測裝置,將無量綱參數診斷法應用於段修現場,且做了大量試驗;對于現場試驗中所出現的問題進行了分析,提出將聲發射的方法用於軸承的在線故障診斷;從理論上分析了聲發射現象,從應用的角度分析故障軸承的聲發射信號的特徵以及聲發射信號特徵的表示方法,並在實驗室中,採用振動法和聲發射法實時檢測的實驗數據進行了對比和分析,證明了使用聲發射法對軸承故障檢測的可行性和有效性。Abstract : it is expounded the composition and detection method of the diagnostic system of dynamic failure for locomotive running gear. also discussed are the key technologies as ultrasonic resonance demodulation, identification of locomotive type & speed, message sampling of sensors tracing running mechanism and three dimensional diagnosis, as well as the feasibility test
文摘:闡述了機車走行部動態故障診斷系統的組成及檢測方法,介紹了超聲共振解調、車型車速識別、多個傳感器跟蹤運動機械的信息采樣、三維診斷等關鍵技術及其可行性試驗情況。The devices for detecting phase - to - ground fault in ineffectively grounded systems are seldom functionary at present. based on thousands of experiments in high - voltage laboratory in north china electric power university, the reasons for misjudgment and the effective measures to avoid it are presented in this paper : to change pt connection form to prevent from ill - effects of ferro - resonant overvoltage ; to increase soft measures to resist against interference ; to adopt neural network method to obtain the virtual value of the detect way
依據上千次實驗,我們找到了一些導致選線誤判的影響因素,並提出幾點防止誤判的措施,包括改變pt接線方式,避免鐵磁諧振對選線的影響;通過對故障檢測方式的處理和使用連續判斷技術增強裝置的軟體抗干擾能力;嘗試採用神經網路演算法設定選線方法的有效域等。Based on establishing a failure distribution model repository, the failure distribution is obtained by parameter estimating and goodness - of - fit testing. 2. decision - making technologies of maintenance ways and maintenance interval are studied
在建立裝備故障分佈模型庫的基礎上,研究了參數估計和擬合優度檢驗的方法,據此確定了裝備故障分佈; 2 、研究了裝備維修方式和維修間隔期決策技術。Both theoretical research and experiment results have demonstrated great quality improvement of original thermal image and a considerable accuracy enhancement of diagnosis
理論研究與實驗結果均表明,這些方法能有效地改善原始熱圖像質量,大大提高紅外故障檢測儀的診斷準確率。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。In this article, based on theory of the rcm technology and exception - tree, the equipment - management programmer and the faulty category in dlpec ( dalian petro - chemistry corporation ) are discussed in details, and the equipment - management patterns for the enterprise are brought forward. for all kinds of equipments, some measurements on the maintaining and governing are established ; moreover, the system function mode structure is also schemed out, which responses the working situation of equipment in the enterprise in detail and is composed of equipment technology document - management, equipment document - management, equipment integrating - management, equipment maintaining - plan management, equipment stat. analysis management, integrating - query system etc ; at the same time, the whole system codes are devised, which include equipment category code, engineering planning sort code, spare part sort code, testing report catalogue code of pressure vessel pile, equipment stat
本文以大連石化公司的設備管理程序和設備種類為研究對象,應用rcm的技術和故障樹原理,提出了具體的適合於該企業的設備管理模式;針對各種不同類型的設備,制訂出相應的維修管理對策;並運用信息系統分析與設計方法,設計出了比較詳細的、能真實反應企業設備工作狀態的系統功能模型結構,包括:設備技術文檔管理、設備檔案管理、設備綜合管理、設備維修計劃管理、設備統計分析管理、綜合查詢系統等;同時,設計出了比較完整的系統代碼,主要包括:設備類別編碼、工程計劃分類編碼、備品備件類別編碼、壓力容器管道檢驗報告目錄編碼、設備統計類別編碼等;另外,對數據庫設計、輸入輸出設計、系統的實施與測試等提出了比較具體的方案。2. the vibration measurements and fault diagnosis has been done for different wind turbines on working conditions. results of fault diagnoses has been proved to be correct by disconnect the gearbox and check it
2 .對不同風力機做了振動測試和診斷,並且以實際拆檢結果驗證了診斷結果基本正確,從而摸索出一套可行的風力機故障診斷方法,對生產實踐具有一定的指導意義。Based on the technical parameters, quality matter and character of polymeric materials and its products, the statistical method such as orthogonal array design, pareto diagram, histogram, significance testing, fuzzy mathematics have been used to carry out a series of study. by doing so, the inherence relationship and variance property, degree and reason of polymeric materials and its products have been obtained ; it could get better improved by adopting correcting measure
本論文以高分子材料及其製件的工藝參數、質量問題和質量特徵值為研究對象,利用正交實驗設計、調查表、因果圖、排列圖、直方圖、控制圖、故障樹( fta ) 、顯著性檢驗、相關分析以及模糊數學評定法等多種統計技術方法,從不同角度進行了一系列探索性研究,得到了高分子材料及其製件內在關系及變異的性質、程度和原因,採取了糾正措施並取得了較好的效果。The method that increases the attitude accuracy of strapdown inertial attitude and heading reference system ( siahrs ) with the infromation from inertial measurement unit ( imu ) its own is studied. according to the design idea of damping network in platform type, damping kalman filter in siahrs is designed to enhance the attitude accuracy via integrating attitude calculated by common siahrs and that estimated by accelerometers. in order to evaluate the effectiveness of damping attitude, the vehicle ' s movement should be detected in real - time. for this reason, the state chi - square test is employed in the damping kalman filter, and the failure detection vector are tested, which improves the sensitivity and reliability of failure detection. finally, static and dynamic experiments of actual system demonstrate the effectiveness of the proposed method
本文探討了如何利用慣性測量組合本身的信息來提高捷聯航姿系統的姿態精度.根據平臺式阻尼網路的思想,設計了捷聯式內阻尼卡爾曼濾波器,將慣導系統捷聯解算獲得的姿態與加速度計估計的姿態進行組合,在系統非加速度狀態下,提高了姿態輸出的精度.為了實時監測系統的運動狀態從而判斷內阻尼姿態的有效性,本文成功將狀態2檢驗法應用在內阻尼卡爾曼濾波器中,設計了基於2個狀態傳播器的故障監測器,並通過對故障檢測向量元素的檢驗代替對整個向量的檢驗,提高了故障監測的靈敏度和可靠性.最後,實際系統的動靜態實驗驗證了本文所提出的方法的有效性The threshold fault detection method is applied under the application of telemetering data analyzing result. it is proved effectively through the application in attitude control system
結合遙測數據與模擬數據的一致性檢驗結果,採用設立門限的故障診斷方法,實現對姿控系統的故障診斷。We first analysis and model the stick failure of hydraulic valve and propose a new non - sensor detection method. we verify its validity by simulation and practical experiments. the experiment shows that this method can well identify the stick failure and do pre - diagnose
論文首先對液壓閥卡澀、卡緊這一類重要故障現象進行了機理分析和建模,提出了基於電反射的無傳感器檢測新方法,並通過模擬和具體實驗對其有效性進行了驗證。It mainly includes following aspects : in this paper, firstly implication of wavelet analysis in signal harmonic component extraction is presented in detail, and on this foundation signal given frequency band component extraction method is proposed. then we investigate frequency aliasing phenomenon, reason why frequency aliasing phenomenon is easy happened when wavelet is implied in field of motor fault diagnosis, and frequency bands where frequency aliasing phenomenon is easer happened, and put forward approved morlet wavelet analysis method which can effectively alleviates frequency aliasing phenomenon. third we set up vibration signal detected system, design experiments to obtain three groups of fault signals : eccentricity fault, mixed fault of eccentricity plus mild rub, mixed fault of eccentricity plus moderate rub, and process these data using analysis method proposed in this paper
首先對論文的選題以及相關背景進行了探討,並對相關的小波基礎理論進行了闡述,主要針對感應電動機的偏心故障和偏心+碰摩復合故障形式及相關的應用演算法進行了詳細探討,主要工作內容包括下面幾個方面:在論文中,首先對小波分析在信號的諧波分量提取中的應用進行了研究,在此基礎上,提出了信號的特定頻帶成分的提取方法;研究了小波分析的頻域混疊現象,探討了小波分析應用於電機故障診斷領域時易發生頻域混疊現象的原因,以及混疊現象較易發生的頻帶,提出了可以有效減輕頻域混疊現象的改進的morlet小波分析方法;搭建了振動信號檢測系統,設計實驗採集得到三組故障數據:偏心故障,偏心+輕微碰摩復合故障,偏心+中度碰摩復合故障,並對這些數據應用本文提出的分析方法進行信號處理,提取出的特徵參數可有效區分這兩種故障形式;研究了基於matlab和labview的混合編程方法,完成了電機故障檢測系統的軟體開發。The minimum square method was used in regressing analysis for the result of treatment in a supposed distribution function, the " d " examination method was used for weibull distribution and index distribution, and obtained the distribution type in the life of the main shaft bearings, appraised the reliability life, the mean life and the reliability in 500hours of the main shaft bearings with theoretical distribution function
用殘存比率法、平均故障法和累積故障法對主軸軸承可靠壽命進行了評估,用最小二乘法對現場數據統計處理結果進行了假設分佈的回歸分析,並用d檢驗法對威布爾分佈和指數分佈進行了分佈檢驗,得出主軸軸承壽命分佈類型。利用理論分佈函數,對主軸軸承可靠壽命、平均壽命、 500小時的可靠度進行了評估。Because die common fault detection method for sensors, residual x2 test, is insensitive to gradual - change - fault detection, a kind of residual x 2 test based on moving subnormal state is presented, and its validity is testified by mathematical simulation results, as shown in figures 5. 2 through 5. 5. with regard to the lag of soft fault detection, a kind of system reconstruction tactic based on hierarchic alliance structure of federal filters is proposed. mathematical simulation results, as shown in figure 6. 10, show the validity of isolating fault by using the tactic
西北工業大學沁士學位論文們要一個研究指出常用的傳感器故障檢測方法?一殘差x 『檢驗法對漸變性故障檢測的不敏感性,提出一種基於移動偽正常狀態的殘差檢驗法,並通過數學模擬驗證該方法對漸變性故障檢測的有效性;提出一種基於遞階聯合濾波器結構的系統重構策略,並通過數學模擬驗證該策略對故障隔離的有效性。Since the western countries began the srfcs research in the eighties, theory of signal detection is used in fdi, and it was successful in some fdi functions in several types of testing aircraft. china did the srfcs research recently, but lack of the engineering fdi algorithm. because the " model based signal detection algorithm " is sensitive to the matching accuracy of the mathematics model and aircraft has prominent nonlinear aerodynamic factors, it is difficulty to upgrade the ability of fdi based on the classical signal detection theory and data fusion only
國外自八十年代開展自修復研究,一般採用基於常規數據處理的故障檢測理論來實現飛控系統故障檢測與隔離功能,現已在幾種驗證機上取得初步成果,而國內的研究尚缺乏實用的工程演算法;同時,基於常規數據處理的故障檢測精度對被檢測對象的數學模型匹配度敏感,且飛機的氣動特性在故障情況下又具有較強的非線性特性,因此,單純依靠常規的信號處理演算法難以進一步提高故障檢測的精度。With the typical circuit fault model and conventional bit testing method, this paper researches into the validation technique of bit and smart fault detection which enhance the test effect of bit
本文結合數控系統典型電路故障模式和常規bit檢測方法,研究bit的驗證技術,並開展智能故障檢測方法的研究,以提高bit的檢測水平。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。Based on summarizing the present technology on xlpe faults detection and reference the pd detection method on power transformer, this paper introduces a method on recognition pd mode of xlpe. this paper uses discharging quantum and stat. arithmetic operators of chart as inputs to artificial neural network
本文在總結前有的xlpe電力電纜絕緣故障檢測方法和借鑒變壓器絕緣局部放電的基礎上,以理論與實驗相結合,研究了基於人工神經網路的以xlpe電力電纜局部放電信號的模式識別方法。In this thesis, we would present theory research and its implementation about mpeg - 2 ts stream “ health ” check analyzer. a brief narration about the background of our research and its mean would be put in the beginning. and then we would analyze structure of ts stream and its definition in iso / iec 13818 - 1, data structure of system layer and mechanism of decode would be stressed in this section, later, we would introduce principles and methods of mal - function check in mpeg - 2 ts network, parameters being presented by etsi tr 101 290 would be emphasized in this part
本文將對mpeg - 2ts碼流「健康」檢測儀的理論研究和數字電路設計作出如下介紹:本課題研究的時代背景及研究現狀和意義; mpeg - 2ts碼流的數據結構,在iso / iec13818 - 1中的定義和描述,其系統層的數據結構及解碼機理; mpeg - 2ts碼流在網路中故障檢測的原理和方法, etsitr101290規定檢測參數分類; mpeg - 2ts碼流「健康」檢測儀實現的總體方案,基於fpga的數字邏輯電路實現方案總體模塊劃分,模塊劃分的依據,模塊實現功能;總體方案的具體實現,幾個重要參數如pcr間隔及精度檢測,快速crc檢測等的實現;設計實現的驗證方法,典型參數檢測實現的驗證模型及驗證結果。分享友人