mechanical fault 中文意思是什麼

mechanical fault 解釋
機械故障
  • mechanical : adj 1 機械的；機械制的。2 機械學的，力學的；物理上的（opp chemical）。3 機工的，技工的；自動的；...
  • fault : n 1 過失，過錯；罪過，責任。2 缺點，缺陷，瑕疵。3 （獵狗的）失去嗅跡。4 【電學】故障，誤差；漏電...
  1. Due to the multi - period tectonic movement and evolution of mechanical mechanism, syndeposition structures occur extensively in jiyang sag, the base of the sag subsided alternatively during the fault depression, which resulted in sinking of top bending and complicated block structure accordingly, reconstructed the syndeposition intensively, and produced the special structural landscape in combination with all levels of faults and sedimentary formations within it

    摘要濟陽坳陷由於受到多期構造運動的影響，在前第三系古地形高點背景上廣泛發育同沉積背斜構造，然而由於坳陷在斷陷期基底滾動式沉降，造成撓曲頂部的塌陷，形成復雜的塊斷結構，使本區同沉積構造發生強烈改造，往往與各次級斷層或沉積地層相復合，表現出獨特的構造景觀。
  2. This dissertation is chiefly act below work : ( 1 ) expatiating the equipments diagnosis technique development process and trend, putting forward the standpoint that giving systematical diagnosis to the mechanical and electrical equipment and expanding the technical application in equipment diagnosis, making it breakthrough the traditional application of maintaining etc. in equipments, still be used for improvement and development etc. s of new product ' s design ; ( 2 ) probing into vibration type and disposal method of vibration signal, the usual method of equipment condition recognition, the essential constitutes and development trend of observation and diagnosis system ; ( 3 ) introducing the development trend of domestic and international crusher and the distinguishing feature of double turnplate stike crusher which is a new product. according to the breakdown phenomenon in running process, establishing the fault tree and deducing every kind of foundation affairs resulting in fault ; ( 4 ) studying the calculation method of critical rotation speed

    本文主要做了以下工作： （ 1 ）闡述了設備診斷技術的發展過程及發展趨勢，提出了應結合實際對機電設備進行系統診斷的新的技術思路，用實踐證明了應當拓寬設備診斷技術應用的范圍，使設備診斷技術既可以在設備管理和設備維修中得到應用，也可以用於新產品的設計改進及開發等； （ 2 ）探討了振動的類型及振動信號的處理方法，設備狀態識別常用的方法，監測與診斷系統的基本構成與發展趨勢； （ 3 ）介紹了國內外破碎機的發展趨勢，以及雙轉盤沖擊破碎機這一新產品的結構和特點，並根據試機過程中出現的故障，建立了故障樹，並導出了導致故障發生的各種基礎事件； （ 4 ）研究了臨界轉速的計算方法和原理，用傳遞矩陣法計算出了破碎機內轉盤的臨界轉速。
  3. Next, the thesis carefully describes the definitions method and course of the mechanical fault diagnosis technology, and the structure ~ algorithm ~ trait and nature of ann model. and it relates the theoretical meaning of the research on the mechanical fault diagnosis technology based on ann theory. the thesis also points out that the peculiar structure and trait of ann have poured into new vitality, so it is possible that the mechanical fault diagnosis technology extricates itself from predicament

    其次，本文系統介紹了機械故障診斷技術的定義、方法和過程以及人工神經網路模型結構、演算法、特點和性質，並在此基礎上闡述了人工神經網路理論應用於機械故障診斷技術研究的理論意義，指出人工神經網路獨有的結構和特點為機械故障診斷技術注入了新的生命力，從而很有可能使機械故障診斷技術走出困境。
  4. 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。
  5. Mechanical changes and sometimes lithological changes, take place in the rocks on either side of the fault.

    斷層兩邊巖層發生機械力學變化，有時也有巖性變化。
  6. The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault ， researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system ， a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows ： this paper compared some existing methods in excitation control ， fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 ， indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which ， discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations ， made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations ， which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations ， there were several very important parameters of power system - - rotor angle ( ) ， rotor speed ( ) ， generator q axis voltage ( eq ) ， transient voltage ( e ' q ) ， active power ( pe ) ， mechanical input power ( pm ) ， valve opening ( ) ， generator terminal voltage ( vt ) ， based on the model ， nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault ， which achieved better postfault regulation compared with another two routine methods ， one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either

    在介紹逆系統理論的基礎上，詳細介紹了dfl理論，通過比較闡明了dfl理論其本質是逆系統方法的一類，並結合具體課題推導出的模型方程將dfl理論進行了擴展，使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程，此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ，在此基礎上建立了實用的電力系統簡化的數學模型，並將擴展的dfl理論應用於此模型系統，結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器，通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門（考慮發電機的飽和因素）進行了對比，證實了採用此種控制器可以有效地提高電力系統的暫態穩定性，並且在電力系統遭受小干擾時同樣具有良好的調節性能。
  7. Importance and means of signal measurement and processing in control of three main electric and mechanical equipment for walking beam heating furnace are discussed, the discussion includes time filtering processing of digital signal, measuring signal processing and measurement fault judging of translation stroke in charging machine and discharging machine, translation stroke measurement of walking beam and measuring method of slab output quantity

    摘要論述了步進梁加熱爐的三個主要電氣機械設備控制中信號檢測和處理的重要性及方法，包括四個方面：數字信號的時間濾波處理，裝鋼機、出鋼機的平移行程檢測信號處理和測量故障判斷，步進梁的平移行程檢測，板坯流出量的檢測方法。
  8. So the research on condition monitoring and fault diagnosis for key parts of operation devices is promising and full of potential. based on dynamics and the theory of signal analysis, the paper discusses the structural characteristic and condition monitoring of slew bearing with mechanical measurement and experiment technology according to vibration

    但作為港口裝卸的特種設備，港口起重機在這方面的發展較為緩慢，因此對裝卸設備的關鍵零部件進行狀態監測與故障診斷的研究具有廣闊的前景和巨大的潛力。
  9. The paper gives a mechanical and history analysis on the characteristic of laojunshan metamorphic core complex in southeastern yunnan and its structural environment, and considers that metamorphic core complex is actually a nuclear column of a vortex structure, which was caused by the wenshan ? malipo strike - slip fault

    通過滇東南老君山變質核雜巖特徵及周圍構造環境的力學分析及歷史分析認為，該變質核雜巖實質上是旋扭構造的砥柱，而旋扭構造又源於文山?麻栗坡斷裂的走滑運動，拆離伸展構造晚于旋扭構造。
  10. Development plan of district and machinery circle technical consultation and appraisement about quality and duty fault of mechanical - electron equipment, possibility certification about technical plan

    地區及機械行業發展服規劃;機電設備質量事故，責任事故技術咨詢與鑒定;技術方案可行性論證
  11. The paper makes out comprehensive evaluation of under pressure mining of mining area through the below aspects : analysising water - resisting layer ' s occurrence geologic features, physical and mechanical property and stability of duancun - leigou bauxite deposit ; researching of confined aquifer ' s hydrogeology features, fault fracture zone and its transmissivity of cambrian - ordovician limestone ; combining calculation of thickness quantitative index of safe water - resisting layer and etc

    摘要通過對段村雷溝鋁土礦隔水層賦存地質特點、物理力學性質及其穩定性分析和寒武奧陶系灰巖承壓含水層水文地質特徵、斷層破碎帶及其導水性的研究，結合安全隔水層厚度量化指標的計算等，對礦區帶壓開采做出綜合評價。
  12. It is necessary to study the welding machine power supply for endless - rolling. it can assure the working reliability of welding machine, decrease the mechanical and electric fault, prolong apparatus ' s life, reduce cost and increase product quality

    它可以保證焊機正常工作，減少機械和電氣事故，延長易損件使用壽命，減低工作強度從而實現無間隙地生產鋼材，大幅度提高車間的經濟效益，降低生產成本，提高鋼材質量。
  13. Then, the thesis designs a program model of mechanical fault diagnosis neural network learning and diagnosis, and uses turbo c2. 0 to achieve the total course of fault diagonisis on the gearbox in j ? 0 tractor based on ann theory

    再次，本文設計了機械故障診斷神經網路學習和診斷程序模塊，並利用turboc2 . 0編寫了程序，實現了基於人工神經網路理論的集材- 50拖拉機變速箱故障診斷的全過程。
  14. The flight is delayed due to the weather / mechanical fault

    航班因天氣/機械故障原因延誤了。
  15. Research on the extraction method of time - domain symptoms based on wavelet packet decompositions of mechanical fault signal

    機械故障信號小波包分解的時域特徵提取方法研究
  16. In this thesis, some research and application work with wavelet and wavelet packet in the field of fault diagnosis of gearbox has been conducted. and wavelet analysis, a new time and frequency analysis method, is used in the field of mechanical fault diagnosis

    本論文圍繞小波變換和小波包變換在齒輪箱故障診斷中的應用進行了理論研究和實驗驗證，將小波分析這一時頻分析方法應用到機械設備故障診斷領域。
  17. A diagnosis method for mechanical fault based on multy - fractal and renyi dimension

    基於多重分形廣義維數的機械故障診斷方法
  18. Vibration monitoring and mechanical fault diagnosis for electronic equipments

    電子設備振動檢測與故障診斷方法
  19. The results show that the method of the mechanical fault diagnosis based on fractal theory is more sensitive to initial fault type of complicated mechanical system

    研究結果表明：基於分形的機械故障診斷方法對復雜機械繫統的早期故障更?敏感。
  20. As we know, feature extraction is the most important and difficult topic in the field of mechanical fault diagnosis. to some extent, feature extraction is a problem which hinder the mechanical fault diagnosis technique from getting further improvement

    在機械故障診斷的發展過程中，最重要、最關鍵、也是最困難的問題之一就是故障特徵信號的特徵提取，從某種意義上說，特徵提取是當前機械故障診斷研究中的「瓶頸」問題。
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