穩壓系數 的英文怎麼說
中文拼音 [wěnyāxìshǔ]
穩壓系數
英文
voltage regulation coefficient-
If the velocity of atoms is near to zero, the light for ces will tend to confine the atoms near to nodes and antinodes. the stability depends on the magnitude of the negative slope of the light force, the depth of the potential well and the momentum diffusion coefficient. it is important to select the parameters, e. g
如果通過激光冷卻能使原子速度降至很小甚至為零,光壓力的作用將使原子被較穩定地囚禁于激光駐波場的節點和反節點處,其穩定程度取決于該處光壓力曲線負斜率的大小、對應勢能的勢阱深度以及動量擴散系數的大小,因此,如何在實驗中合理選擇激光強度、失諧量等顯得尤為關鍵。On the basis of investigations into the progressive yield process and the possible failure modes of rcc gravity dams, the quasi - elasticity design limit state of the ctrtical stability criterion is proposed and the real working state of the dams designed according to the ctriterion is discussed. a check formula using the material strength reducing factor as the safety index and a simplified formula similar to against sliding stability fromula are derived. finally, the corresponding design safety factors are given by using fem calculations with various influence parameters to be taken into account
本文在研究碾壓混凝土重力壩漸進破壞過程和可能失穩方式的基礎上,提出了以準彈性臨界作為穩定臨界準則的設計極限狀態,分析了按該準則設計的大壩的實際工作狀態,導出了以準彈性強度儲備系數為設計安全指標的審查公式以及形式與抗剪斷公式相同的簡化公式,探討了定量計算考慮各種因素影響的相應設計安全系數的合理取值,並與現行規范方法進行了比較The system is formed with explosion - proof kinescope, explosion - proof braket, explosion - proof decode, matrix controller, keyboard controller, 232 to 485 switch, color kinescope, digital harddisk kinescope system, display, manostat, explosion - proof junction boxes and special cable
該系統由防爆攝像儀、防爆雲臺、防爆解碼器、矩陣控制器、鍵盤控制器、 232轉485轉換器、彩色攝像機、數字硬盤錄像系統、監視器、穩壓電源、防爆接線箱及專用電纜等組成。So it can be used as both sensor component and driving component. pzt have better electromechanical coupling coefficient, piezoelectric constant, mechanical quality factor, curie temperature and stability, etc. so, pzt can be used widely in smart materials and structure
與其它壓電陶瓷相比,鋯鈦酸壓電陶瓷( pzt )有較好的機電耦合系數、壓電常數、機械品質因數、居里溫度和穩定性等,因此, pzt能廣泛應用於智能材料結構中。With the research object of overbank soft clay near the yiluo river, by means of pack drain to accelerate the consolidation of the soft ground and analysis of fourteen selected representative observation section, in the same time with the help of such testing apparatus as settlement plates, deflection inclinometer, piezometer, telescoping tube, my study not only evaluate the effect of pack drain ' s quickening up the consolidation of soft ground impersonalily and scientifically but also sum up the settlement disciplination of overbank soft clay after more than one years ? observation of settlement and stability continuously
本文以伊洛河河灘相軟土為研究對象,利用沉降板、測斜管、孔隙水壓力計、分層沉降標等多種測試儀器,選取14個有代表性的觀測斷面,進行了一年多的沉降與穩定觀測。通過對觀測數據的分析,進而對袋裝砂井加速河灘相軟土固結效果進行了客觀、科學的評價,同時推算了沉降系數m _ s和固結度參數,並對河灘相軟土的沉降規律進行了分析。Dbw, sbw series single - phase and three - phase super power voltage regultor of new age having the advantages of large capacity, high efficiency, wide range, high precision, strong protection, without wave - form distortion, reliadle operation and casy installation, etc
Sbw系列單、三相大功率電力穩壓器是我公司在參數照國際同類產品、結合我國國性的基礎上研製生產的新一代節能電力穩壓器,具有容量大、效率高、穩壓范圍寬、精度高、保護功能強、無波形畸變、運行可靠、維護簡便等特點。Using the opened thermosiphon of 38x3 as experimental element and water as working fluid, the characteristics of dynamic low load boiling, stable severe boiling heat transfer coefficient and critical heat flux are gotten for the opened thermosiphon at the pressure of 0. 02 - 0. 1mpa and 0. 1 - 0. 8mpa respectively, which makes up the drawback that the opened thermisiphon has not yet accurate boiling heat transfer relationship formulas. by means of experimental results, an opened thermisiphon waste heat recovery boiler is designed for the high temperature gases that the positi e electrode copper refining furnace exhaust, which overcomes effectively the drawback of short life, little capacity and unable to inspect that the closed steel - water thermosion has
本文以工程上常用的38 3的開口封底為實驗元件,以水為工質,對開啟式熱管內的動態低負荷沸騰、穩態旺盛沸騰及臨界沸騰特性進行系統的可視化實驗研究,實驗壓力為0 . 02 0 . 8mpa ,實驗得出了38 3的開口封底管在工作壓力為0 . 02 0 . 8mpa和0 . 1 0 . 8mpa下的管內沸騰傳熱系數及臨界熱負荷計算關聯式,彌補了開口封底管? ?這一新型傳熱元件尚無準確的沸騰換熱關聯式的缺陷。The inverted pwm changing electric current the technique is applied in the prototype model. the prototype model was tested and operated on spot, power factor could reach beyond 0. 95, the effect of following modulating voltage was better, the curve of factor of modulated voltage of exchanging systems changed following load rate was linear, the output of wave form was a flat and steady sinusoidal wave
樣機採用了逆變式pwm變流技術,對其進行了現場測試與試運行,測試結果是電網側的功率因數可達0 . 95以上,跟蹤調壓效果良好,變流系統輸出調壓系數( k )隨負載率( p )的變化曲線基本滿足直線關系,輸出波形呈平滑穩定的正弦波。After the comparison of the stability checking computations and the section categorised situation both at home and abroad the current standard, some problems was discussed in the standard of our country. contraposed these questions, the paper computed the space stability coefficient of some general t - shaped and l - shaped sections and all the sections of t - shaped, l - shaped and 2 - angle iron t - shaped in the formed - steel - table, and worked out the curves. according to the comparison of the curves the paper got and the curve in the standard, some simple conclusions was put
對國內外現行規范軸壓柱穩定驗算方法及柱子曲線截面分類情況進行了對比,討論了我國規范曲線中存在的一些問題,並針對這些問題,以規范初始彎曲值對任意「 t 」形和「 l 」形截面和型鋼表中所有t型鋼、 l型鋼、雙角鋼t形鋼截面的空間穩定系數進行了計算,作出其與規范曲線的比較圖,通過計算結果的分析對各類截面歸類情況作了簡單的評述,其中提出的一些建議可以作為規范修訂的參考依據;同時,這些計算結果也進一步證明了本文的柱子空間穩定分析方法的正確性。Stability reduction coefficient of axially loaded compression
軸心受壓構件穩定系數The stability - factor of axially loaded alunimum - alloy member for folding latficed frame
折疊網架軸心受壓鋁合金桿件的穩定系數Experimental research on stability parameters for i - section aluminium alloy bars loaded by axial compressive force
工字形鋁合金軸心壓桿穩定系數的試驗研究The results of the study demonstrate that under the condition of the same slendness ratio, the stability factor of axially compressed medium long concrete filled steel tube column has no relation with peak stress of the core concrete, instead, the factor will depend on peak strain of the concrete
研究結果表明,在長細比相同的情況下,鋼管混凝土軸壓中長柱的穩定系數與核心混凝土的峰值應力無關,而取決于核心混凝土的峰值應變。This paper conducts a study of the influence of core concrete performance upon the stability factor of axially compressed medium long concrete - filled steel tube column on the basis of comparison of the axial compression test results of long column made up of common concrete filled steel tube and medium long column made up of lightweight aggregate concrete - filled steel tube, and in accordance with analysis of the constitutive relation curves between both the common and lightweight aggregate concrete
摘要通過對鋼管普通混凝土長柱和鋼管輕集料混凝土中長柱的軸壓試驗結果的比較,結合對普通混凝土和輕集料混凝土的本構關系曲線的分析,研究了核心混凝土性能對鋼管混凝土軸壓中長柱穩定系數的影響。In this paper, the buckling behavior of cold - formed angle members is studied by non - linear finite element method. the influence of the width - thickness ratio of the single cold - formed angle column under axial load is analysed. the criteria of flexural buckling and torsional - flexural buckling for cold - formed egual - leg under axial loads is presented. according the calculating results of the ansys finite element method, the stability - coefficient formulas are simulated for the cold - formed loading single angle members of flexural buckling and torsional - flexural buckling
本文運用非線性有限元法對冷成型單角鋼的穩定性能進行了研究,分析了寬厚比對冷成型單角鋼軸壓桿穩定性能的影響,給出了等邊冷彎角鋼發生彎曲屈曲和彎扭屈曲的判斷條件,根據ansys有限元的計算結果擬合出了冷成型單角鋼軸壓桿在發生彎曲屈曲以及在發生彎扭屈曲時的穩定系數公式,在此基礎上得出了冷成型單角鋼軸壓桿在所有長細比情況下的穩定系數公式。Majority of large data centers are fed with 16000v ( us ) and require substantial transformation
多數大型數據中心都是用16000伏電壓進行供電,同時要求可靠的穩壓系統。When the axis force p is much greater than the moment m, the out - of - plane column - instability mode is dominated. otherwise, the in - plane instability mode of the beam - column is dominated. at the end of this part, the practical formula of box section beam - columns is suggested which avoid the incorrect concept of
最後對數據進行分析、擬合,得到了實用的計算箱形柱壓彎構件承載力的計算公式,並消除了規范中穩定系數羅_ b > 1 . 0的概念錯誤。In this paper, torsional - flexural buckling of single - angle members is researched deeply and systematically by ultimate strength theory and general fem analysis software ansys, and is contrasted with some codes, as a result the simple and practical formulas for stability coefficient are recommended for design purpose
本文採用極限強度理論和通用有限元分析軟體ansys ,系統深入地研究了單角鋼軸心受壓構件的彎扭失穩,並與多本規范進行了對比分析;在此基礎上提出簡單實用的穩定系數計算公式,以便工程設計參考。Introduced the second order analysis of the thin - walled members based on the theory of the rotation of a cross section around a fixed axis, and discussed the general methods of the loading capacity and the space stability coefficient for the thin - walled columns. used a programme, a large amount of space stability coefficient of t - shaped and l - shaped axes columns with a initial bend was computed to gain the curves of the columns. the procedure of the computation behaved the simplification and the convenience of the method
介紹了以定軸轉動理論為基礎的薄壁柱空間穩定二階分析方法,初步論證了以此為基礎的薄壁柱空間穩定承載力的驗算及空間穩定系數的計算方法,並藉助程序對具有初彎曲的各種「 t 」形和「 l 」形軸壓柱的空間穩定系數進行了計算,作出其柱子曲線圖,從而驗證了此方法的可行性和簡便性,同時提出以此為基礎對鋼結構截面優化的方法。For common reinforced concrete and steel reinforced concrete columns with axial compression, it is pointed out that the same stability coefficient can be adopted and closed reliability level can be provided
提出對于普通鋼筋混凝土與型鋼混凝土軸心受壓柱,可採用相同的穩定系數,並具有基本相同的可靠度水準。分享友人