equivalent velocity 中文意思是什麼

equivalent velocity 解釋
等價速度
  • equivalent : adj 1 相當的,相同的,同等的。2 【化學】等價的,當量的;【數學】等價的;等量的;等勢的;【物理學...
  • velocity : n. 1. 迅速;快速。2. 速度,速率。3. 周轉率。
  1. It is concluded that the equivalent target expression and the method of calculating terminal velocity can efficiently increase the calculating precision and can be used in the battle damage simulation

    結果表明:建立的等效靶公式和剩餘速度求解方法顯著地提高了計算精度,可以應用於戰斗損傷模擬分析中。
  2. 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。
  3. We use the stressed fraction that is the most representational and sensitive to corroding to making experiment in combined type equivalent environment spectrum. we can calculate the velocity of corroding, protection period and basal body corroding expansion lifespan, first repair time and the interval of repair period

    本文以模擬試驗結果和使用中腐蝕損傷數據統計處理為主要依據,並同時滿足安全性和經濟性兩方面的要求,在確定機體使用壽命時,以疲勞定壽結果為主、日歷定壽為輔,綜合給出飛機機體使用壽命。
  4. The diffusion carrier concentration profile and junction depth were measured and compared with conventional furnace processing diffusion ( cfd ). it presented following conclusions : 1 ) the temperature distribution in quartz chamber of rtd furnace is uniform because square resistance is uniform after rtd ; 2 ) the diffusion velocity of rtd furnace by a factor of three compare to conventional furnace processing diffusion ( rtd ) ; 3 ) if diffusion temperature and doping phosphorus are equivalent, doping phosphorus of rtd are more than of cfd in equivalent distance to the silicon surface

    實驗研究了快速熱擴散( rtd ) :通過旋塗磷膠和印刷磷漿兩種方式考查了2 4和103 103單晶硅的快速熱擴散特性,發現: 1 )此樣機的溫度場在空間分佈上是均勻的; 2 )快速熱擴散可以比傳統擴散快3倍的速度進行擴散; 3 )在擴散溫度和摻雜磷源相同的條件下,與傳統擴散相比,快速熱擴散將雜質向結更深的地方推進。
  5. Experimental techniques for simulating cavity decoupling explosion in laboratory wear developed, which include a center initiating explosive charge designed in shape of mini - spherical with yield equivalent to 0. 125 ~ 8. 00gtnt, circular electromagnetic particle velocity gages and aluminum bar strain gages measurement techniques, spherical divergent stress waves generator. large amount of tamped and cavity explosion experiments had been made in granite, soil, cement mortar and water media environment, respectively

    本文建立起了包括中心起爆的0 . 125 8 . 00gtnt微型球形炸藥裝置的研製、圓環形電磁粒子速度計及鋁桿應變計測試技術和球形發散應力波實驗裝置等在內的實驗室微型藥量空腔解耦化爆模擬技術,並在花崗巖、土、水泥砂漿和水等介質中進行了大量的填實和空腔爆炸實驗研究。
  6. Result shows : the vibration of vehicle is mainly relevant to velocity and uneven path. the higher the velocity is, the more uneven the path is, the more violent the vibration of vehicle is ; comparing dynamical response of middle bridge stride on vehicle passing bridge and on equivalent moving loads, the displacement is same but the velocity and the acceleration are different ; the result of velocity and acceleration of vehicle is big over the ground path than over the same path of bridge

    結果表明:車輛的振動主要和車速及軌道不平順有關,車速越高,軌道越不平順,車輛振動的就越劇烈;車過橋時橋梁跨中動力響應與等效移動荷載作用下橋梁跨中動力響應比較,橋梁跨中的位移基本相近,速度和加速度則不同,等效移動荷載作用情況下的數值比較大;車輛過地面軌道不平順時的速度、加速度比車輛過橋上同樣軌道不平順時的數值大。
  7. Kc of each higher mode in ridge waveguide is a very important parameter, once kc is obtained, the wavelength, phase constant, phase velocity, waveguide wavelength, equivalent reactance, equivalent admittance and so on can be obtained simply. then ridge waveguide devices can be designed based on these paremeters. in view of the widely use of ridge waveguides, the research of kc is very important in practice

    由於脊波導中主模及各高次模的kc是一個很重要的參數,求出了kc ,可以很簡單地求出、相移常數,相速、波導波長、等效電抗、等效導納等等,求出這些參數后就可以用各種方法設計脊波導元器件了。
  8. The effects of observing scale on the measurements of acoustical velocity were studied by ray theory and equivalent medium theory

    分析了聲波頻率影響傳播速度的機理,給出了不同溫度不同壓力條件下聲波速度隨頻率變化關系的實例。
  9. This paper relates to some problems about the determination of design ground motion parameters, which include the choice of the attenuation relationship of rock horizontal acceleration response spectrum, the impact of focal depth to rock peak horizontal acceleration and rock response spectrum curves, the choice of intensity envelops function and random input phase, the choice of soil nonlinearity and shear wave velocity, scale of design ground motion response spectrum etc. in the researches of relative aspect, based on a typical section plane of the engineering site, influence of the change of some parameters on design ground motion parameters and the existing errors and corresponding rules are studied by using the method of one dimension model of equivalent linearization

    摘要研究了確定設計地震動參數中涉及的若干問題,其中包括基巖水平加速度反應譜衰減關系的選擇、震源深度對基巖水平加速度峰值及基巖反應譜曲線的影響、強度包絡線函數及輸入隨機相位的選擇、土體非線性特性參數和土層剪切波速值的選擇、設計地震動反應譜的標定等問題。
  10. Based above, a two - grade fuzzy comprehensive evaluation model is presented on the ground of the current seismic design code for building. it is that taking the membership of equivalent shear velocity as weight of the model not empirical weight in traditional one - grade model. it has been proved in site classification reasonable

    參照我國現行建築抗震設計規范,改變過去以經驗系數為權重的一級模糊綜合評判模型,以等效剪切波速對各場地土的隸屬度為權重,建立了場地二級模糊綜合評判模型,對場地進行劃分。
  11. Based on the transfer - matrix method, the general expressions of equivalent four - terminal network parameters of varying section torsional horn are derived, the relations between frequency equation and both the rotational velocity amplification and that of the surface tangential velocity of stepped type torsional ultrasonic horn with transitional section of cosine - like type are obtained

    摘要基於傳遞矩陣演算法,推導出了變截面桿扭轉振動時等效四端網路參量的一般表達式,研究了帶類餘弦過渡段階梯形變幅桿扭轉振動頻率方程與角速度放大倍數及外表面切向速度放大倍數等的關系。
  12. Comparing the fitted expression with the established theory expression of the angular velocity, the equivalent viscous damping coefficient is gained. the closed form algorithm of the state space method is employed to solve the system dynamic equation with time - varying coefficients. the dynamic problem of a linkage mechanism with four joints is taken as example to show that the presented models and methods are correct and practicable

    引入求解線性微分方程的狀態空間法,並對其求解時變系統運動微分方程的具體步驟進行了推導;在此基礎上將實測獲得的運動副等效粘性阻尼系數代入系統動力學方程,求解后獲得了考慮運動副阻尼的平面彈性四連桿機構的模擬結果;結果表明運動副的阻尼在一定程度上對振動具有抑制作用。
  13. Based on the constitutive relationship coupled microstructure evolution, 3d - fe simulation of isothermal forging process of tc6 titanium alloy disc is performed dealing with different deformation temperature, punch velocity and shear factor of friction, effect of process parameters on equivalent strain, equivalent stress and grain size is calculated, and load - displacement curve is calculated

    本文基於微觀組織演變的本構關系模型,對不同變形溫度、凸模速度和摩擦條件下鈦合金盤的等溫鍛造過程進行了三維數值模擬,研究了變形工藝參數對等效應變、等效應力和晶粒尺寸的影響,計算了各變形條件下的位移?載荷曲線。
  14. Kinematic analysis : by denavit - hartenberg method, space geometry relationship of each pole relative to fixed reference frame can be described with equal index transform, also do space relationship of two adjacent poles with 4x4 equal index. so equivalent equal index transform matrix can be deduced from them. when sportive equations and sportive coordinate frame of workpiece exercise point are set up, the coordinate values of exercise point can be got, the pose and situation of two manipulators are analysed, in the end each joint valiable and its velocity, acceleration are worked o ut

    運動學分析:利用denavit ? hartenberg法,用齊次變換描述各個桿件相對于固定參考系的空間幾何關系,用一4 4的齊次變換矩陣描述機鄰兩桿的空間關系,從而推導出等價齊次變換矩陣,建立兩機械手運動方程,確定工件作業點隨動坐標系,求出作業點坐標,對兩機械手的位姿進行解析,求出兩機械手的各關節變量及其速度、加速度值。
  15. A mathematical model of flows in the substrate was established using the equivalent continuum approach, and multi - dimensional numerical simulation of the steady flows in the catalytic converters was performed. simulation results show that the separation and vortex, which cause the pressure loss and the velocity non - uniformity at the front of the first substrate, are generated near the wall of the conical pipe. in addition, the larger the inlet cones angle the more the pressure loss and maldistribution in converters, however, when the angle enlarges enough the pressure loss would be decrease

    結果顯示氣流在擴張圓錐管壁附近出現分離產生較強的擾動,造成局部流動損失和載體前氣流速度沿徑向分佈不均勻;入口擴張管結構對催化器的流動特性有很大影響,但並非擴張角越大,催化器流速武漢理工大學碩士學位論文分佈的不均勻性和壓力損失也增大,而是存在著一個最佳角度,但當擴張角增大到一定程度以後,擴張角對流速分佈和壓力損失的影響變小。
  16. The project is to develop the 100mhz wideband digital storage oscilloscope ( wdso ) , typical performance character : input signal - 3db bandwidth is 100mhz, real time sampling frequency is 20msa / s, equivalent sampling frequency is 10gsa / s, resolution is 8bits, dual signal channel, and delicacy is 5mv 5v div per channel , time sweep velocity is 2. 5ns - - 5s div 。 so the project is provided with higher performance - to - price ratio, stronger competitive capacity in market and widest applied foreground at the area of wdso

    本次課題的具體目標是實現100mhz帶寬的數字存儲示波器正樣機的研製,具體主要性能指標達到最高實時采樣率20msa / s 、等效采樣率10gsa / s 、被觀測信號3db模擬帶寬達100mhz 、采樣數字解析度8bit ;雙通道,幅值靈敏度: 5mv 5v div ,掃速2 . 5ns - - 5s div 。該方案具有較高的性價比,較強的市場競爭力和廣闊的應用前景。
  17. The project is to develop the 100mhz bandwidth, equivalent sampling frequency is 1g / sa, resolution is 8bits, dual signal channel, and delicacy is 5mv - 100v / div per channel, time sweep velocity is 20ns - - 5s / div digital storage oscilloscope ( dso ) 。 achieved equivalent sampling is innovative and main content of the project

    本設計的具體目標是實現帶寬為100mhz ,等效采樣率為5gsa / s ,采樣數字解析度為8bit ;雙通道,幅值靈敏度為5mv 100v / div ,時基為: 10ns 5s的手持式數字存儲示波器.等效采樣的實現是本設計的創新點和主要研究內容
  18. Any homogeneous viscoelastic medium subjected to one - dimensional tension and compression can be characterized in terms of the phase velocity c ( w ) and the attenuation coefficient deduce the complex modulus and the other equivalent viscoelastic functions

    一維的縱向壓縮波在同質的粘彈性介質中傳播時,材料的粘彈性特性主要通過縱向波的傳播速度c ( w )和衰減系數a ( w )兩項來定義。
  19. Based on new seismic code " code for seismic design of buildings " ( gb50011 - 2001 ), a method of selecting parameters and equivalent phase velocity of the earthquake wave for multidimensional analysis is suggested

    以最新發布的《建築抗震設計規范》 ( gb50011 ? 2001 )為基礎,提出了地震動隨機模型參數的取值。此外,對考慮多點問題時地震波視波速的取值方法提出了建議。
  20. The characteristics of seismic response transfer function is studied statistically. to describe the effects of soil layer on characteristics of ground motion the one new approach are suggested to characterized the predominate period of ground motion by site equivalent predominate period. the idea and method for calculation of site equivalent predominate period is given according to equivalent. shear velocity

    本文對場地計算模型的地震反應傳遞函數特性進行了統計分析,捉出了以等效場地卓越周期反映場地地震動卓越周則的想法,以合理地反映場地十層對地震動的影響,給山了等效場地卓越周期的確定思路和方法,井給出了基於等效剪切波速的等效場地卓越周期計算式。
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