穩定工程 的英文怎麼說
中文拼音 [wěndìnggōngchéng]
穩定工程
英文
secondary strengthening- 穩 : 形容詞1 (穩定; 穩當) steady; stable; firm 2 (穩重) steady; staid; sedate 3 (穩妥) sure; rel...
- 定 : Ⅰ形容詞1 (平靜; 穩定) calm; stable 2 (已經確定的; 不改變的) fixed; settled; established Ⅱ動詞...
- 工 : Ⅰ名詞1 (工人和工人階級) worker; workman; the working class 2 (工作; 生產勞動) work; labour 3 ...
- 程 : 名詞1 (規章; 法式) rule; regulation 2 (進度; 程序) order; procedure 3 (路途; 一段路) journe...
- 穩定 : 1 (使穩定) stabilize; steady 2 (穩固安定) stable; steady 3 (物質的性能不易改變的作用) stabi...
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The physical characteristic of forming plasma within resonant cavity was revealed, i. e. the forming mechanism is a switching process from the ionization caused by strong electric field at the initial stage of mpt ' s start to another ionization caused by joule ' s heat at the stage of mpt ' s steady work. the main influencing factors of mpt ' s steady work were studied. anther pointed out the matching between pressure in resonant cavity and microwave power is the determinant factor to the plasma whether stabilization or extinguishing
分析了mpt諧振腔內微波能量的轉換過程,揭示了其內等離子體的形成是由mpt啟動初期的強電場電離形成放電區過渡到穩定工作期的熱電離形成穩態等離子體區這一物理本質;研究了影響mpt穩定工作的主要因素,指出微波有效功率與諧振腔內氣體壓強的匹配是維持等離子體穩定、避免等離子體消失、放電區熄滅的關鍵因素。Hydrology regime and river channel evolution become complex because of double influences of river flow and tide. there is little appropriate method so far. therefore, when the impact us assessed of water project on flood control, the following aspects should be focused on, river evolution and stability of project - sections, design tidal level, flood - tide combination scheme, pre - project and post - project impacts on river channel, water level and flow condition
長江河口段為潮流河段,徑流潮流的雙重作用使得區域水文情勢、河道演變規律錯綜復雜,開展防洪影響評價研究時,河道演變及工程段穩定性分析,設計潮位的分析計算,洪潮組合方案擬定,工程前後對河道及水位流態影響的模擬等均是目前尚無十分成熟的方法,需要進一步研究的課題。This paper aimes to accomplish ignition start - up and steady work experiments in vacuum environment using different propellant and to find optimum propellant for engineering application of mpt finally based on analyzing, comparing and researching the experimental results
本文對不同的推進工質進行mpt點火啟動實驗及真空穩定工作實驗研究,並對結果進行分析、比較和研究,最終為mpt工程應用尋找最合適的推進工質。According to the experimental parameters of mpt, the main performance parameters of different propellants have been given by engineering performance computation under designed and working states, which has great importance for the experimental research and the future work. 2. for helium and argon, the factors which influence on mpt ' s vacuum steady work have been discussed such as the material of microwave tie - in, the distance between the probe and inner - conductor, the position of the inner - conductor, the input power of microwave, the mass flowrate of propellant and the vacuum pressure of environment, and the influence has been discussed of the microwave power and the mass flowrate of propellant on the pressure of the resonance cavity, thrust, reflected power and the temperature of the resonance cavity
論文的工作和新見解主要包括: 1在設計狀態和工作狀態下,根據mpt的實驗參數,對mpt使用不同工質時的性能進行了工程估算,這對mpt現階段的實驗研究和今後的研究有重要的指導意義; 2對于he 、 ar推進工質,討論微波的接頭材料、探針與內導體的間隙、內導體的位置、微波的輸入功率、工質的質量流量以及環境真空度對mpt真空啟動和穩定工作的影響,並探討微波的輸入功率、工質的質量流量對諧振腔壓強、推力、反射功率以及諧振腔溫度的影響; 3對于n _ 2 、 h _ 2 、 nh _ 3 、 h _ 2o推進工質,主要討論與he 、 ar工質不同的特性,並從長遠的眼光和工程應用的角度,認為其可行性不容置疑,潛在優勢不可忽略,是未來mpt應用的主流推進工質。According to test results of three or more than three points of flowing pressure and corresponding liquid output, the regression equations that contained the 3 undetermined coefficients were setup by the least squares method rule, and the undetermined coefficients were solved by the optimization method
根據3點或更多點穩定工作制度下產量與對應流壓的測試數據,建立了確定3個待定系數的非線性代數方程組。Firstly, this paper describes the optimization problem of thermal stress of fabrication process and steady work process for the hollow cylinder and the infinite plate. then, thermal stress distribution is calculated making use of theoretical formulation and the results can be validated by finite element method. in optimization, the restriction condition is heat insulation performance and the objective function is danger coefficient
本文首先對平板結構和圓筒結構梯度塗層在制備過程和穩定工作狀態下的熱應力優化設計問題進行描述,然後分別用解析法求解兩種結構的梯度塗層在制備過程和穩定工作狀態下的熱應力分佈,並採用有限元方法驗證了熱應力分佈的結果,在優化設計時,以危險系數為目標函數,以塗層的隔熱性能為約束條件進行設計。A resonant machine structure tying the crankshaft on the main bearing is made as the test system ' s pallet. the loading part is a machinery activator driven by motor. the control core is made up by a plc and a pc
系統的控制核心由可以長時間穩定工作的可編程式控制制器( plc )和計算機組成上下位機及若干相關部件構成,它可以有效的保證曲軸疲勞試驗的人機對話能力、試驗載荷的高精度控制和試驗運行抗干擾能力。These methods are following : ( 1 ) in order to build fem model conveniently and enhance calculating speed, interceped a finite length and built a 2d - symmetry model. ( 2 ) in order to apply loads conveniently, kept the entrance of cold fluid. ( 3 ) in order to obtain numerical results in steady situation, lengthened export and import ends
這些方法主要有: ( 1 )為了便於建立模型並提高計算速度,對于實際工程中採用的長徑比特別大的換熱管採取截取有限長度的方法並建立二維對稱簡化模型; ( 2 )提出採取保留冷流體入口端,截取有限長度的方法施加載荷; ( 3 )適當延長翅片管的出口端和入口端,以便獲得穩定工況的數值解。When dicussing reliability design and reliahbaiiy ensuring methods, a new reliability calculating model of petroleum logging tools is presented, reliability assurimg technologies should be taken in petroleum logging tools and their using approaches are presented and stated from electricity design and mechanical design, reliability system model of petroleum logging tool is set up according to the latest reliability theory, reliability indexes of petroleum logging tool and their acquiring ways are discussed, the reconmended reliability indexes ( mwture, nolwnm, mtbf, mttf ) of petroleum logging tool are presented : the mean working time under rated error ( mwture ) of the new tool is obtained through experiments. when studying data processing methods, the property of gamma - ray signal is stated and the type of it ' s measuring error is examined using statistical method, the basic theory of digital filtering and the basic situation of digital filtering methods are introduced and analyzed, the factors affecting digital filtering effect to gamma - ray signal and the effect of digital filtering to logging curve are analyzed, the evaluting criteria ( rvi, rmse, sfi ) of digital filtering effect are set up from two aspects, named as real value acquiring of steady section and the formation boundary checking and processing, the related filtering methods and examining methods are given out. the design methods of digital filter used to process gamma - ray signal are discussed, the mixed filtering scheme of natural gamma - ray log is presented, the realization ways are discussed. the selective filtering system and it ' s realization flow are given out through quantitive reseaching to part of digital filters, three new filtering sheme will be used to process gamma - ray signal in era2000 logging system
在探討可靠性設計與可靠性保障技術時,提出了石油測井儀器的可靠性計算新模型,從電氣和機械兩個方面,提出並闡述了應採用的可靠性保障技術及其使用方法:根據最新可靠性理論,建立了石油測井儀器的可靠性系統模型,探討了石油測井儀器的可靠性指標及其獲取途徑,提出了推薦使用的石油測井儀器可靠性指標( mwture , nolwnm , mtbf , mttf ) ;通過試驗,得到了所設計儀器的穩定工作時間( mwture ) 。在研究數據處理方法時,闡述了伽瑪信號的特徵,對測量誤差類型進行了統計檢驗;介紹了數字濾波的基本理論、數字濾波方法的概況,並進行了分析;對伽瑪信號數字濾波效果的影響因素及其對測井曲線的影響進行了基本分析;從獲取平穩段真值、地層邊界的檢測與處理兩個方面,建立了數字濾波效果的評價準則( rvi , rmse , sfi ) ,給出了相應的數字濾波方法及效果評價方法;探討了自然伽瑪信號數字濾波器的設計方法,提出了適合自然伽瑪測井的混合濾波方案,探討了混合濾波方案的實現途徑;通過對部分數字濾波方法的定量研究,給出了靈活可選的數字濾波系統構成及實現流程;提出的三種濾波方案,將用於era2000成像測井系統,對自然伽瑪測井數據進行濾波處理。In the research of water arcjet, serious oscillation existed in jet and arc voltage was found and it led to unstable work state of arcjet
目前對水電弧加熱的研究過程中,發現水電弧加熱發動機羽流和弧電壓存在強烈的脈動,不能穩定工作。A new aerodynamic design system developed by authors for draft fan with enhanced efficiency, suppressed noise, enlarged flux and high load. the new design system features : a twist regulation for vortex control is employed in designing to lessen the secondary flow loss in the blade tip and hub ; the feasibility and high efficiency of this procedure has been verified by the tests of the prototype fan ; a new computer - aided 3d blading is used to optimize the blade ; numerical inverse checking is adopted to enhance accuracy in designing and cut down the period of the designing and production. this design system can make the optimized blade with " forward inclination ", " inclining sweep ", " bending sweep ", to minimize the various secondary flow losses, to expand the steady working range of the fan, and to suppress the aerodynamic noise source
本文通過對一種新型高性能礦用局部通風機的設計、製造及試驗全過程的綜述,展現了新的先進設計體系在民用通風機上的成功運用,其研製特點是: ( 1 )在葉片氣動設計中為了降低葉根及葉尖區二次流損失,採用可控渦扭向規律設計,樣機實測的高性能驗證了這種方法的可行性和高效性; ( 2 )在設計方法中採用較精確的數值反驗算,獲取最優設計方案,大大提高設計的準確性和成功率,並縮短了設計試制周期; ( 3 )在設計過程中發展了計算機輔助三維葉片造型新方法,可以根據設計需要簡便快捷地對葉片進行「前傾」 、 「傾掠」或「彎掠」造型,這些造型對減小各種二次流損失、擴大穩定工況范圍和控制葉輪機氣動噪聲源起到了非常好的作用。Abstract : a new aerodynamic design system developed by authors for draft fan with enhanced efficiency, suppressed noise, enlarged flux and high load. the new design system features : a twist regulation for vortex control is employed in designing to lessen the secondary flow loss in the blade tip and hub ; the feasibility and high efficiency of this procedure has been verified by the tests of the prototype fan ; a new computer - aided 3d blading is used to optimize the blade ; numerical inverse checking is adopted to enhance accuracy in designing and cut down the period of the designing and production. this design system can make the optimized blade with " forward inclination ", " inclining sweep ", " bending sweep ", to minimize the various secondary flow losses, to expand the steady working range of the fan, and to suppress the aerodynamic noise source
文摘:本文通過對一種新型高性能礦用局部通風機的設計、製造及試驗全過程的綜述,展現了新的先進設計體系在民用通風機上的成功運用,其研製特點是: ( 1 )在葉片氣動設計中為了降低葉根及葉尖區二次流損失,採用可控渦扭向規律設計,樣機實測的高性能驗證了這種方法的可行性和高效性; ( 2 )在設計方法中採用較精確的數值反驗算,獲取最優設計方案,大大提高設計的準確性和成功率,並縮短了設計試制周期; ( 3 )在設計過程中發展了計算機輔助三維葉片造型新方法,可以根據設計需要簡便快捷地對葉片進行「前傾」 、 「傾掠」或「彎掠」造型,這些造型對減小各種二次流損失、擴大穩定工況范圍和控制葉輪機氣動噪聲源起到了非常好的作用。Because its largest singular value curve is identical before or after the unstable process is mirror - injected, and the closed loop gain shaping algorithm constructs directly the robust controller using parameters having engineering sense according to the shape of the singular value curves of the robust performance index, the designed controller has equally robustness to the unstable process
由於非穩定過程在鏡像映射前後的奇異值曲線相同,而閉環增益成形方法直接根據魯棒性能指標的奇異值曲線形狀用閉環系統具有工程意義的參數構造出魯棒控制器,故該控制器對非穩定過程同樣具有魯棒性。The mainland authorities hopefully should consider issuing multi exit entry permits for mainland residents. the validity of the permits could depend on whether these mainland visitors have had good travel track records by not overstaying before, have a stable job and earn high income
政府應建議內地機關可批出不同年期的多程旅遊證件給有良好出入境記錄有穩定工作和高收入的內地居民來港旅遊,以平衡現時出入不均的現象。Abstract : the initial charge - process of dc capacitor and the steady working state of active voltage - source - inverter power filters are analyzed in this paper, and four new parameters are proposed to judge the working performance of active power filters and to aid their design
文摘:分析了電壓逆變器型單相有源電力濾波器直流側儲能電容器的初始充電過程(有源電力濾波器的起動過程)和有源電力濾波器的穩定工作狀態,並提出了判定有源電力濾波器性能、幫助有源電力濾波器設計的四個標識性參數。Results of analysis indicate the self - charge ability of active vsi power filters without additional equipment under start - up process and their ability of maintaining the average voltage on dc capacitor in steady state
分析結果表明,無需附加任何充電環節或裝置,電壓逆變器型有源電力濾波器就能自動完成對儲能電容器的初始充電過程,然後自動過渡到穩定工作狀態,並在穩態中維持儲能電容器上的電壓平均值不變。Slope stabilization works
斜坡穩定工程Soil stabilization works
土壤穩定工程First of all, based on studying the transient behavior of refrigeration system, it was deduced of the mathematical models in the stable process of refrigeration system and brought to light of the heavy inertia, hysteresis coupling in refrigeration system. these results were comfirmed to be valid by a large number of experimented results. the second, to couter the characteristics of refrigeration system, reseached many control algorithms for working conditions
首先,在研究製冷系統動態特性的基礎上,推導製冷系統穩定過程各主要變量間的定量關系,揭示了製冷系統的大慣性、相關性、滯后性,並進行了大量的實驗加以驗證;然後,針對製冷系統的特點,研究多種工況控制策略,提出d p轉換的軟實現概念,在此基礎上,又提出了概率控制律,並將專家調節器應用於實際控制之中;最後,提供了整個壓縮機測試系統的硬、軟體實現? ? yzc - 500型製冷壓縮機測試系統。E associated site formation, slope drainage and stability works including landscaping and rehabilitation
E進行有關之工地構造工程斜坡渠道及穩定工程,包括地勢及修復工作分享友人