速壓限制 的英文怎麼說
中文拼音 [sùyāxiànzhì]
速壓限制
英文
dynamic pressure limit- 速 : Ⅰ形容詞(迅速; 快) fast; rapid; quick; speedy Ⅱ名詞1 (速度) speed; velocity 2 (姓氏) a surna...
- 壓 : 壓構詞成分。
- 限 : Ⅰ名詞(指定的范圍; 限度) limit; bounds Ⅱ動詞(指定范圍, 不許超過) set a limit; limit; restrict
- 制 : Ⅰ動詞1 (製造) make; manufacture 2 (擬訂; 規定) draw up; establish 3 (用強力約束; 限定; 管束...
- 限制 : place [impose] restrictions on [to]; astrict; restrict; limit; confine; shut down on [upon]: 限制...
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The research aims at the demonstration and the mend of the design on the new purifier and presents a calculation method for solving the two - phase flow in fluid machine by the finite element method. after analyzing the two - phase flow in the new purifier by means of the continuum model, poisson equation, navier - stokes equation and continuous equation are derived and solved by using the finite element method. the solution on pressure, velocity and particle concentration simulates the departure well between oil and water, which proves the accuracy of the design on the new purifier
本文採用兩相流連續介質模型,由兩相分離流動理論得到控制方程,採用chorin的直接速度-壓力mac法的思路,對新型油水分離裝置內油水兩相流動作了細致的分析,同時首次把科氏慣性力引入兩相流模型中,進行分析和計算,將研究擴展到三維,並用有限元法分別解poisson方程、 n - s方程、連續方程的方法,對流場內壓力場、速度場、濃度場進行了分析和計算,較好地模擬了新型油水分離裝置內油水分離的現象,證明了設計方案的正確性。Secondly, compared with some other kinds of comparator structure and based on the preamplifier - latch fast - compare theory, a novel topology of cmos preamplifier latch comparator circuit is presented. considering trade - off between kickback noise and power dissipation, reference resistance value is optimized. according to the encode demands of different stage resolution, clock - control encode circuit is designed
其後,在具體的子adc設計中,對比各比較器類型的優缺點,並基於預放大鎖存快速比較理論,提出一種新型高速低功耗預放大鎖存比較器電路拓撲;根據adc系統所允許的參考電壓最大波動限制,在回饋噪聲對輸入參考電平的影響和功耗之間折衷,確定優化的參考電阻串阻值;根據不同級精度的編碼要求,設計出時鐘控制編碼電路。In order to make the sensitivity of 2 - demension accelerometer along the two main arbors almost identical, symmetric four - beam structure that embeds a double - sides interdigitated differential capacitive with puckered beam in two directions was used as sensitive component. in addition, the differential capacitive accelerometer fabricated by bulky silicon micromechanical technique has high sensitivity, wide measurement scope, less nonlinear error, and simple converting circuit. then, the structure parameters of the sensitive component were calculated and stimulated, which results in a set of the optimized structure design parameters, main fabrication procedure and several key fabrication technology
為使二維振動傳感器在兩主軸方向的靈敏度大致相同,敏感元件採用高度對稱的四梁結構,其中每個軸向上均採用帶折疊梁的雙側叉指電容結構,採用體硅微機械工藝製作的高深寬比叉指電容式敏感元件,具有高靈敏度、寬量程、非線性誤差小、外圍電路簡單等優點;對設計的敏感元件結構參數進行了計算,並利用有限元法進行了模擬分析,根據模擬結果得出了優化參數;在確定敏感結構的基礎上,研究了敏感元件採用體硅微機械加工工藝製作的工藝流程和關鍵工藝技術;對敏感晶元內部的c - v介面電路進行了原理設計與分析,利用差動測量技術得到由振動引起的微小電容變化量,經c - v介面電路進行相位調制處理,然後通過解調輸出與加速度成正比的電壓信號。You cannot switch thebutton to the faster level directly from the stop status to keep the voltage jump within usb limits ( 500ma ) during motor start up
為了保證吸塵器電機啟動時電壓波動在usb介面限制的范圍( 500毫安)內,不能直接將開關從停止位置打到快速檔。During the temperature fields, the results indicate that the processing parameters such as the extrusion velocity, casting temperature, perform preheating temperature, die preheating temperature and so on are important for the temperature fields besides the dwell time. they are must be in concordance each other to the deforming zone is in the quasi - solid state, and the stable semi - solid extrusion is implemented. during the deforming fields, the hyperbolic sine thermo - rigid - viscoplastic fem model is selected according to the forming feature of the process, and the variations of the stress - strain fields are studied
在溫度場的模擬中,模擬結果表明,保壓時間是影響製件成形質量的關鍵因素之一,擠壓速度、液態金屬澆注溫度、預制體預熱溫度和模具預熱溫度等工藝參數對溫度場的影響也很大,需進行參數之間的協調,只有當變形區內部始終維持準固態時,才能實現穩定的液-固擠壓成形過程;在變形場的模擬中,根據液態浸滲擠壓的成形特徵,選用了雙曲正弦剛-粘塑性有限元計算模型,研究了變形過程中應力應變場的變化規律,研究了模角對變形和金屬流動的影響及變形力的變化過程和其影響因素。Since ureido - dcarbamido grease with high dripping temperature, long life, withstand high temperatures, high - speed, anti - water, it has broad industrial applications, but the ability of resisting high pressure is not well which limit its development more or less
由於脲基潤滑脂具有滴點高、使用壽命長、耐高溫高速性、抗水性等優點,使其在工業上具有廣泛的應用,但脲基脂本身的極壓性能不高等缺陷在一定程度上限制了其發展。The clues and techniques to improve the resolution of data processing are 1 ) removing the affection of near surface factors on data acquisition, including static correction and noise eliminating technique etc, 2 ) broadening the frequency band of pre - stack seismic data, including amplitude compensation and pre - stack deconvolution etc, 3 ) improving s / n ratio of high frequency and weak reflection signals through multiple coverage with high precision velocity analysis, residual static correction and high - order nmo, raising " dead line of high frequency reflection ", and 4 ) identifying post stack effective reflection frequency band, enhancing dominant frequency and so on
主要包括:消除近地表因素對資料採集的影響,包括靜校正和噪音壓制技術等;疊前拓寬地震資料領帶,包括振幅補償和疊前反褶積技術等;藉助高精度速度分析、剩餘靜校正和高次項nmo技術,通過多次覆蓋疊加,消除資料中隨機噪聲干擾、提高資料信噪比,尤其是高頻端反射信息的信噪比,改善高頻反射和弱反射信號信噪比,提高「高頻反射死亡線」 ;疊後有限反射頗帶識別、抬高優勢頻率等。The purpose of this dissertation is to study the lagrangian method and conservative rezonning algorithm. finite volume scheme is used for lagrangian equations of hydrodynamics. because of the pressure gradients " influence upon velocities and energy, computational scheme is proposed for momentum equation on two control volumes in order to suspend the time when the mesh becomes distorted
本文的目的是研究lagrange方法及重映演算法,主要內容可分為以下幾個方面:首先從積分形式的二維lagrange流體力學方程組出發,用有限體積格式進行計算,考慮壓力梯度分佈對速度和能量改變的影響,構造了在兩個控制體上的動量方程的計算格式,使得速度的改變受其周圍八個壓力的影響,在一定程度上推遲了網格相交的進程。The flow equations are solved using finite difference technique. using body - fitted curvilinear coordinate system treated the boundary conditions. by iteratively solving the flow governing equation and the blade equation, the design of axial flow pump impeller in the quasi - three - dimensional rotational flow can be performed according to the angular momentum distribution, the blade which was designed in the lifting method, flow channel and the blade thickness given
其次在流動無粘性、不可壓及考慮葉片厚度的條件下,依據葉輪內的流動特性,推導了葉輪內三維流動周向平均流動控制方程以及葉片方程;在貼體坐標系中,採用有限差分法求解流動方程和葉片方程;在採用升力法設計出的葉片作為初始葉片、給定葉片速度矩分佈、葉片厚度分佈和葉輪軸面流道幾何形狀條件下,迭代求解流動控制方程及葉片方程,實現了軸流泵葉輪的準三維方法設計。( 3 ) based on the analyses results of simple inference method and seismic focal mechanism and on the statistic results of measured geostress data, the direction of principal stress was derived and based on the analyses results of macro geological estimate and on the statistic results of measured geostress data the magnitude of principal stress was derived too. the influence of rapidly down - cutting of yellow river on geostress field of studied zone was discussed. then the evolution of geostress field accompanying with the down cutting of yellow river and was simulated with fem and the spatial distribution features of geostress were discussed
根據簡易推斷法、地震震源機制分析法以及地應力實測資料統計分析結果,綜合確定了工程區的主壓應力方向;運用地質宏觀判斷法並結合地應力實測資料的統計分析結果對地應力的量級進行了綜合評價,並進一步討論了黃河快速下切對研究區地應力場的影響;運用有限元法模擬了研究區地應力場的形成過程,並探討了地應力的空間分佈規律。Abstract : based on the rigid visco - plastic fem technique, this paper numerically simulate the superplastic bulging process of void - sensitive materials using pressure controlling strategy of maintaining maximum effective strain rate constant and void damage evolution model of superplastic forming
文摘:基於剛粘塑性有限元技術採用最大應變速率恆定的壓力控制策略和超塑性成形空洞損傷演變模型對空洞敏感材料的超塑性脹形過程進行了數值模擬。Zeron has been buckling down to press related automation equipment and always provide products that achieve customer ' s cost reduction requirement from 2001, we offer : mechanical press cnc controller, digital cam, die height indicator, crank angle display, tonnage monitor, calibration load cell, and with cabinet ' s total solution for press control
南京澤榮自動化系統有限責任公司自2001年以來一直致力於壓力機自動控制領域產品的開發、生產和銷售以滿足客戶降低成本、提高效率之需求,我們的產品包括:高速壓力控制系統,電子凸輪,模高指示器,轉角指示器,噸位監控系統,壓機標定系統,以及帶電控櫃的全套控制系統等This paper mainly discusses the design principles and chief techniques of a digital accessing system for power - line communication net ( plcn ). the technology of low bit rate speech compression high - speed modem based on plcn adaptive equalization to the channel anti - jamming and anti - fading are applied in this system. so speech tele - control data and tele - protection signals can be transmitted high quality in the band - limited channel
該系統綜合應用了低比特率語音信號壓縮編碼技術、基於電力通信網的高速調制解調技術、信號傳輸的通道自適應均衡技術和抗干擾、抗衰減技術,可在帶限通道中高質量的傳輸語音、遠動數據和遠方保護等信號,具有較高的整體性能。Firstly, the performance is calculated at the design point of the ws - 9 aeroengine by using the numerical model established. secondly, after obtaining the performance coupling parameters, the steady - state performance of the non - designed points is caculated. third, respectively make the limitation of rotate speed of the high pressure rotor and low pressure rotor equal to corresponding parameters of designed point, after the data calculated compared with those of designed point and actual testing of the manufactory, the error is obtained
首先,用所建立的發動機數學模型計算了發動機在設計點的各項性能,第二,根據發動機各部件的耦合特性參數計算得到發動機在非設計點狀態下的各項穩態性能,第三,分別設定限制高壓轉子轉速和低壓轉子轉速逼近設計點條件下對應的參數,將計算得到的性能數據與設計點性能進行了比較,並將非設計點的計算結果與生產試車過程實測的性能數據進行對比,給出了該穩態模型計算結果與實際試車數據的誤差。As the automobile industry ’ s growing, more and more aluminum alloys have used in the manufacturing of automobile and aluminum alloys replaced parts of steel planks used in automobile parts which is one of the key resources for light weighting of automobiles. but as aluminum alloys have some limitation in forming such as crinkle, fracture and difficult for welding, the industrial scale of aluminum alloys is limited
隨著汽車產業的發展,鋁材在汽車上的用量迅速增加,鋁合金取代部分鋼材成形汽車零件已經成為解決汽車輕量化的關鍵手段之一,然而由於鋁合金在傳統的沖壓成形中會出現難以消除的裂痕和褶皺,以及深沖性能比較差、焊接難度高等特點,使得鋁合金的大規模運用受到限制。But it is gas medium with compressibility and low viscosity that leads to low natural frequency, small damping ratio, low positional precision and rigidity, bad low speed characteristics, which limit the application of pneumatic servo technique
但因為氣體的可壓縮性和低粘性,導致氣壓伺服系統固有頻率低、阻尼比小、定位精度和定位剛度低、低速性能差,使得氣壓伺服技術的應用受到限制。In the last few years, because the price of current original material soaring rapidly, and some abroad microwave oven magnetron company control local companies by the intelligent property right, or limit with taking the very high patent fee
當前,由於原材料價格的飛速上揚,以及國外微波爐磁控管企業通過知識產權對我國企業的產品實行限制和收取高額的專利費。使我國的相關企業在激烈的競爭中面臨著巨大的壓力,有的甚至出現虧損。Since 1996, six international global telemedicine conferences have been held by the university, the largest of all being the " moving with the sun 97 " conference which was the first 24 - hour telemedicine conference linking up 19 medical centres across the world. telemedicine links medical experts in different parts of the world together by using high speed multimedia network such as asynchronous transfer mode ( atm ), very small aperture terminal ( vsat ) and virtual private network ( vpn ) as communication media in conjunction with compressed video conference technology
遠程醫療是醫療技術與高科技相結合的典範,以高速多媒體電信網如異步傳輸模式( atm ) 、高速衛星專線( vsat )及組建虛擬專用網( vpn )作為通訊渠道,並配合先進視像壓縮技術與世界聯網,使身處不同地方的醫學專家可以面對面進行各種醫療活動,打破時間和空間的限制,為救死扶傷開創了另一新途徑。For we applied storage battery ( + 12v ) to provide electrical source, when the rotate speed of diesel engine is increased, the steady voltage cannot is assured, which will affect the synchronization
目前,該擺秧機採用12v電瓶來穩定發電機發出的電壓,這種穩壓方式能保證電壓不小於12v ,但當柴油機轉速提高時,發電機輸出的電壓有所提高,而電瓶不能限制其升高,擺秧均勻性受到影響。It will have a direct impact on the displacement compressors, power consumption and reliability of operation, the current compressor is fast direction, and rotational speed limit is one of the key issues in improving air valve
它的好壞直接影響壓縮機的排氣量、功率消耗及運轉的可靠性,目前壓縮機正向高速方向發展,而限制轉速提高的關鍵問題之一就是氣閥。分享友人