漏損系數 的英文怎麼說
中文拼音 [lóusǔnxìshǔ]
漏損系數
英文
coefficient of leakage-
The heat coefficient changing of the heater and reheat ; c. the leakage test of the working substance ; d. the damage test for the heat pipes of the radiator, were taken
分析了穩態參數，完成了：吸熱器熱負荷擾動試驗、吸熱器及回熱器換熱系數變化試驗、工質泄漏試驗、輻射器熱管損壞試驗等多個模擬實驗。First, mathematical model of swaying system is made, which is a basis on later chapters. meanwhile, the system is simulated and designed. the effect of loaded mass, loaded suppleness, general leaking coefficient and cubage elasticity modulus on performance of system is also analyzed
首先，作者建立了橫蕩控制系統的數學模型，作為以後各章節討論的基礎，同時對系統進行模擬和設計，並研究了系統負載質量、負載剛度、總漏損系數和容積彈性模數對系統性能的影響。The second chapter simply introduces the development of alternate asynchronous inverter technology and retrospects some types of energy - saving systems for hydraulic elevators. then the working principles of the project are discussed and analyzed at four different working status, i. e. light load upwards, heavy load upwards, light load downwards and heavy load downwards. and the chapter focus on the introduction of structure design of pump station, calculation and type selection of pump / motor reversible units, research on oil leakage principles of accumulator circuit, design of accumulator - pump / motor pressure - energy transformer and integrated valve blocks, etc. the last but not the least, the electrical wiring of vector inverter control cabin and design of computer control and data acquisition system are introduced
論文第二章首先簡單介紹了交流異步電動機變頻調速技術的發展概況，在回顧電梯液壓控制系統節能技術的基礎上，介紹了本課題研製的「採用蓄能器的液壓電梯變頻節能控制系統研究」的基本原理，分析了動力系統在電梯轎廂輕載上下行、重載上下行等四種典型工況下的基本工作狀態和工作方式；詳細地介紹了本課題節能系統液壓動力泵站的結構設計和參數設計，重點研究了液壓動力泵站的結構設計、液壓泵馬達可逆性問題及其選型設計計算、蓄能器迴路泄漏油損失機理的研究及其補償裝置的設計、蓄能器-泵馬達壓力能量轉換裝置的設計、多功能集成控制閥組的設計等內容；最後簡單介紹了本課題矢量控制變頻控制櫃的外部附件電氣接線、計算機控制及數據採集系統的硬體設計等內容。In the third chapter, the mathematical models of project system have been established, and simulation has been done on the simulink enviroment of matlab software kits. the simulation focus on the effects of main parameters on the dynamic characteristics of speed control system, and the main parameters include viscosity damp coefficient and friction torque of electrical motor shaft, internal leakage coefficient of pump / motor of hydraulic circuits, gas volume of pressure accumulator, viscosity damp coefficient of cylinder piston and different running building floors, etc. at last, theoretical research effects of the flow and pressure pulsation of pump / motor on car speed and oil volume leakage theory are discussed. the fourth chapter of this thesis concerns the research on the key items about hydraulic power control system according to the ens 1 - 2 and other hydraulic elevator standards
論文第三章針對組成系統的各個模塊進行了機理建模，並且通過matlab軟體中的simulink圖形化模擬環境進行了本課題系統的模擬研究，主要針對影響系統特性的主要參數變化，動態分析系統的輸出特性，在上下行工況中，分析了電機軸系粘性阻尼系數、軸系摩擦力矩、主迴路蓄能器迴路液壓泵馬達內泄漏系數、蓄能器氣體容積、液壓缸柱塞粘性阻尼摩擦系數以及不同運行樓層工況等參數對系統特性的影響；最後對軸向柱塞泵馬達的流量壓力脈動對電梯轎廂速度的影響和蓄能器內油液體積損失機理進行了理論研究。The system differentiates between background losses at joints and fittings and larger scale bursts, and enables operators to quickly localize leaks, deploy maintenance teams, track maintenance status, and access essential zone criteria and data by remote
該系統可以區分在管道連接處的滲漏和更大規模的爆裂之間的損失，使得操作員迅速定位滲漏地點，組成維修隊，跟蹤維修情況，以及遠程訪問基本的地域標準和數據。The solution is based on abb ' s award - winning system 800xa automation platform and includes the wlms and power generation information management ( pgim ) software, the expansion of an existing abb scada system with 800xa and ac800m controllers, magmaster electromagnetic flow meters, and ctu800 - cpe remote terminal units
該系統可以區分在管道連接處的滲漏和更大規模的爆裂之間的損失，使得操作員迅速定位滲漏地點，組成維修隊，跟蹤維修情況，以及遠程訪問基本的地域標準和數據。The water seepage from canal systems was one of the major factors in the analysis of water supply - demand balance. through the analysis of the monitoring data on water delivery in the canal systems, a generalized model of water loss at a unit length of canal and a mathematic model of canal percolation replenishment to the moving table of underground water were recommended
渠系滲漏是供需平衡分析過程中的一個主要因素，通過對渠系輸水測試資料的分析研究，本文提出了單位長度渠系輸水損失量的概化模型和變動水位條件下渠系滲漏補給量的數學計算模型。The numerical simulation and experimental research made on the characteristics of the clearance cavitations in kaplan turbine are described herein ; in which the analysis mainly is concentrated on the characteristics of leakage - vortex caused by the flow of the clearance between blade tip and blade chamber, that occurs at the front - pressure side of the blade, and the intensity of the secondary - flow - vortex ; furthermore, the relationship in between the leakage - vortex, secondary flow vortex, cavitations and erosion are analyzed as well
摘要對軸流轉槳式水輪機輪緣間隙流動及空化特性進行數值模擬和試驗研究，重點分析輪緣間隙流動在正面頭部泄漏流動所引起的泄漏渦帶、二次流動的漩渦強度和空化特性，以及泄漏渦帶旋轉、二次流動的漩渦與空蝕和磨損之間的關系。Various data compression techniques are studied and summarized in this paper, including the traditional and the newly developed techniques, then analyses the features of pipeline leak signals, such as the mechanism of production, entropy and correlation coefficient, are analyzed, and finally a universal and low - complex lossless compression algorithm is proposed and implemented in the pipeline leak detection and location system
本文研究和總結了國內外傳統和最新發展的各種數據壓縮技術，然後分析了管道泄漏信號的特徵，包括管道泄漏信號的產生機理、信息熵和相關系數，提出了一種適合於管道泄漏檢測定位系統的通用、低復雜度的無損壓縮演算法。There must be more application systems and more users in our campus network in future. this complexion can bring two problems : first, the possibility that cwiss are attacked by hacker is higer because the more and more resource in our cwiss. second, users have to supply their accouts and password repeatedly when they want to enter different systems, the method is to fussy, more important, can lost the password, canse fatal lost
今後還會不斷增加新的應用系統，用戶數量也會不斷增加，這樣就帶來了信息安全方面的兩個問題：一是上網的信息資源越多，受黑客攻擊的可能性越大（尤其是一些敏感數據） ，二是眾多用戶面對多個系統要重復輸入帳號、口令等信息，不僅煩瑣，更重要的是容易出現口令丟失，一旦口令泄漏會造成不可估量的損失。This paper, according to the characteristic and requests of measurement for the medium loss of electric capacitive equipment and the resistive weight of moa leak current in a power substation, according to the on - line monitoring principle and implementing scheme of electric equipment in substation relying mainly on the means through the software analysis, finish the design and the fabrication of monitoring system hardware and software, and then empolder the on - line monitoring equipment fitting for the 220kv substation of dazhuling in chongqing, have finished the installation, debugging and the data analyzing of the running device
本文針對變電站電容性設備介質損耗和moa泄漏電流阻性分量測量的特點和要求，按照以軟體分析為主的變電站電氣設備絕緣在線監測的原理和實施方案，完成了監測系統硬體、軟體的設計、製作並開發了適合於重慶大竹林220kv變電站電氣設備絕緣的在線監測裝置，完成了裝置的安裝、調試和運行的數據分析。分享友人