velocity curve 中文意思是什麼

velocity curve 解釋
速度曲線
  • velocity : n. 1. 迅速;快速。2. 速度,速率。3. 周轉率。
  • curve : n 1 曲線;彎曲;彎曲物。2 曲線規 (=French curve);【機械工程】曲線板;【棒球】曲線球;【統計學...
  1. Firstly, simulate flow field of rear smoke channel, plot velocity magnitude and ash concentration distribution in section of entry of heat pipe air preheater, compare with data which were measured in guiyang power station, verify simulation to be reasonable and right. secondly, simulate all kinds of factors which affect flow field ' s uniformity such as length, thickness, location of diffluent board, ash concentration, ash diameter, and so on, find the chiefly factors. thirdly, install guide board in curve channel in rear smoke channel, then simulate its " flow field, plot velocity magnitude and ash concentration distribution

    在此基礎上模擬在冬夏兩季不同情況下,不同流速對熱管空氣預熱器壁面溫度的影響;然後對影響整個流場分佈的各種因素:包括分流板長度、厚度、偏離中心流道位置的偏離度、飛灰濃度、飛灰粒徑等因素進行數值模擬;最後提出在分流煙道轉彎處加裝導流板,並模擬加裝導流板后的流場分佈,得到下級空氣預熱器出口、熱管空氣預熱器進口處的斷面速度場分佈、濃度場分佈,以論證加裝導流板能達到流場均勻化的作用。
  2. Considering the electrovalence, the curve of water consumption and the reliability of water supply, this paper respectively sets up the model based on the maximal flux and the model based on the expectation flux. it takes yearly expenditure converting value and yearly cistern converting value as target function and takes continuity equation, velocity of flow and compression resistance of cast iron pipeline as restrictions and sets up the pga model on optimal design of water supply networks

    考慮到峰谷電價、用水量變化曲線及用水可靠性因素的影響,分別建立了以最高時流量設計管網的模型和以期望時流量設計管網的模型,以年費用折算值加上清水池年造價折算值為目標函數,以連續性方程、管中流速和鑄鐵管耐壓值等為約束條件,進行并行遺傳演算法對給水管網優化設計的實現。
  3. Radial velocity curve

    視向速度曲線
  4. The qualification of multipactor and the characteristic of the angle and velocity of secondary electron were study. bring forward a improved model of multipactor and solve it by a random sample made by monte carlo, as a result, a critical curve of multipactor was gained

    提出了一個改進型的次級電子倍增研究模型,利用蒙特卡羅法生成的隨機樣本來求解這個模型,得到了工作在2 . 85ghz的介質片的次級電子倍增敏感度曲線。
  5. In different in terne die travel, the metal flow characterize in warm extrusion forming processes and the affection for the flow of metal stage which made by the difference between the blank bottom altitude and the axial direction limiting size in warm extrusion forming technique have been analysed we have gotten the equivalent strain field and the velocity field and other field variable that the blank in different in terne die travel and the die travel - load curve. at the same time, we have analyzed the contributing factor for the oil pump stator forming process optimized and achieve thereasonable die parameter for the war m extrusion forming finally, the optimized technics parameters were used into pilot production, then the qualified oil pump stator forging were produced, the analog results were compared with those of pilot production

    論文具體分析研究了不同成形工藝過程中金屬流動的特點,並對不同凸模行程下溫擠成形過程中的金屬流動特點、坯料連皮厚度(底部高度)與溫擠壓成形工藝中的軸向界限尺寸的差值對金屬變形階段的影響進行了分析,獲得了坯料在不同凸模行程下的等效應變場、速度場等場變量及凸模行程-載荷曲線,同時對油泵定子成形過程的影響因素等進行了分析,優化並獲得了合理的溫擠成形工藝及模具參數。最後,利用模擬優化獲得的各項工藝參數進行生產實驗,得到實際生產出的合格油泵定子件,並將模擬結果與生產實驗結果進行比較。
  6. Here a low cost optimal position system with speed - loop open and position - loop closed based on fuzzy control is presented, it employs fuzzy controller to verdict rotor velocity approximately and a fuzzy switching curve is substituted for real one to achieve bang - bang switch, no limit - loop or oscillation occurs. at the end of this chapter, a dc break curve is discussed

    為了實現經濟實用的點對點快速定位系統,實際系統採用速度開環、位置閉環結構,速度量從模糊控制器得到,既不實測也不軟體估計,用模糊開關線代替真實開關線進行控制量狀態切換,無極限環或振蕩現象,而成本則大大降低。
  7. In chapter four, according to the analysis on the boundary theory and velocity field of main fluid zone of two - phase fluid pumps, the parameter equations of vane ' s modular curve of centrifugal pump are given, which contact the boundary " layer and eular theory of two - phase fluid pump by the fixing angel of vane as variable and leading into the velocity coefficient a. the results show that, in designing process of vane ' s modular curve of centrifugal pump, the determination of the total shape and parameters relates the flow properties of two - phase fluid and output ability of pump, or the design of the modular curve of centrifugal pump is the kernel of hydraulic design

    第四章依據固液兩相流泵的邊界層理論及對主流區速度場的分析,給出了離心泵葉片型線的參數方程;它是以葉片安裝角為參變數,以引入的速度系數k _ v作為中間因子,將兩相流泵的邊界層理論和歐拉理論聯系起來? ?它說明了這樣一個事實,在離心泵葉片型線的設計過程中,它的整個形態或參數的確定都關繫到兩相流體的流動特性和泵的輸出能力,或者說,離心泵型線的設計是其水力設計的核心。
  8. Around 40 ; the neutral curve obtained by the growth rates of the temperature fluctuation has a ringlike curve separated from the main branch of nachtsheim s calculation by velocity fluctuation at the lower grashof number side ; and its phase velocity is close to the maximum mean velocity where the critical layer of the eigenmode locates. the thermal fluctuation decays rapidly as the nondimensional frequency above 0. 4, so that it means that the coupling effect between instability wave generated by buoyancy fluctuation and velocity waves by invicid instability seems weak enough for their critical layers in the range of the nondimensional frequency

    詳細研究了自然對流邊界層中最早失穩的浮力振型的功率譜波長波速與臨界層位置等基本特徵和它為主導其他振型尚未失穩時按線性理論得到的3種相互獨立振型的振幅分佈。系統地測量了它所對應的溫度和速度漲落的振幅增長規律和中性曲線,實驗結果表明,溫度漲落的中性曲線在低格拉斯霍夫grashof數
  9. Based on the analysis of the current lift velocity curve, sine curve was used as the ideal velocity curve of the system

    文中還在對各種電梯運行曲線進行分析比較的基礎上,把正弦曲線作為adcm的理想速度曲線。
  10. The growth velocity curve of height was multi - humped. the effect of water on height increase was significant, fertilizer could boost in tillering but influenced not markedly on height

    水分對株高的增加影響較大,施肥對芨芨草株高的增加有影響,差異不甚明顯,但對分蘗有較強的促進作用。
  11. Several characteristic parameters are extracted from the angular velocity curve and the acceleration curve of crankshaft instantaneous rotation, and the quality of them is evaluated by use of the gray relation analysis method and the method for inspecting the consistency of the extremum cylinder number

    在瞬時轉速曲線和角加速度曲線上提取幾個特徵參數,再用灰色關聯度分析方法和極值缸號一致性檢查法對特徵參數的優良性進行評價。
  12. In the first part of this page, it discussed some problems of how to planning the velocity curve of train. these problems include : characteristic of line, guideline index of train design, and guideline index of comfort

    本文首先討論了規劃列車運行速度曲線有關的問題,這些問題包括:線路特性、列車相關設計指標、運營時的舒適度指標。
  13. Zero velocity curve

    零速度線
  14. By using the software, we can get a optimum velocity curve and other curves, check up the parameters of train and line whether or not satisfy the running require

    通過這個軟體,可以得到一條優化的列車運行速度等其他曲線,同時可檢驗線路、車輛的設計參數是否滿足運營要求。
  15. The curve of accelerating and decelerating can reflect the test curve well. 4. the paper analyses the steady - state control when afterburning and gives the height - velocity curve which gets under the control law that fuel retain as constant. 5

    第三,對其過渡態控制過程進行了分析研究,給出了按相似參數加速的供油控制規律,並進行了模擬;給出了減速過程的主燃油控制規律並進行了模擬。
  16. The micro boundary layer experiment is carried out from 8mm to 14mm of a 15mm - long micro plane. re numbers vary from 35, 000 to 150, 000 and 4 different mach numbers are selected. some new characters are discovered, such as velocity curve factor is smaller than that of well developed normal scale turbulence boundary layer

    微尺度平板邊界層實驗選取從總長度為15mm的微平板前緣8mm到14mm之間的7個站位, 4種馬赫數, 13個不同雷諾數(從35000到150000 )的實驗狀態,發現了該尺度下邊界層流動的一些新的特點,如形狀因子比常規大尺寸下充分發展湍流狀態的形狀因子更小等。
  17. By means of the software of pro / e we studied the movement of the bit and obtained some data reports about different parameter bit. in the environment of visual basic the trace program can compute the well - bottom outline. it also can draw the trace and the velocity curve that the teeth scrape the well bottom

    分析方法是在pro / e中對試驗鉆頭進行運動模擬,得到不同結構參數和傳動比的鉆頭運動的數據文件,然後進入用visualbasic高級語言編制的異形牙輪單牙輪鉆頭分析軟體中,計算出鉆頭的井底輪廓曲線,並繪制鉆頭井底軌跡和牙齒刮切井底的速度曲線。
  18. By solving the christoffel equation, the relationship between velocity and angles is obtained, and the ultrasonic inverse velocity curve is illustrated. the dixon equations of ao diffraction on the xoz and yoz planes in ln crystal have been applied to obtain the geometric relationships of acousto - optic interaction. therefore, the beam steering theory is proved to be a possible way to do the optimum design of ln anisotropic acousto - optic deflector. the detailed parameter data and the figures on the xoz and yoz planes with the angle of incidence of - 5 degree are shown up, which will contribute to the desigh of aod

    對鈮酸鋰超聲跟蹤反常聲光偏轉器進行優化設計,經研究計算得到了分別在入射角取- 5o時xoz與yoz工作平面中正負一級衍射中分別使用快切變波與慢切變波的情況下,優化設計鈮酸鋰超聲跟蹤反常聲光偏轉器的設計參數,對聲光偏轉器生產設計有實際參考意義。
  19. Vertical velocity curve

    豎向臨曲線
  20. Comparison of these two methods was completed by comparing the displacement curve and the velocity curve. strongpoint and demerit of each method were concluded

    通過幾次試驗的對比分析,其中包括目標彈的位移曲線和速度曲線的對比,充分證明了兩種方法的可行性並指出各自的優缺點。
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