boundary angle 中文意思是什麼
boundary angle
解釋
邊界角-
With account for the effect of temperature and shock - boundary layer interaction, the forebody / inlet with plane lip and wedge lip are designed by using the design methods of constant shock wave intensity and constant shock wave angle. in the design, the incidence angle of the first ramp, height of isolator, length of forebody and total turning angle of the designed forebody / inlet models are given
另外，根據優選結果，給定前體長度、前體預壓縮楔角、總壓縮轉角及隔離段高度，分別用等激波強度和等激波角度的方法設計了唇口平直和唇口帶楔角的前體進氣道。 -
The curve plotted in this way would meet the boundary conditions given and all the polar curves embodied the same wrapping angle
這一方法不僅保證了繪制的型線有給定的邊界條件，同時保證了各型線有相等的包角。 -
The study indicate that the surface form has no effect on kl, but has obvious effect on kll, and will affect the breaking angle and mode ; in finite plate, the boundary condition has effect on the sif and the k is bigger than in infinite plate ; the effect of the distance and the angle between cracks are all have obvious effects on the multiple crack interaction, and the interactions between cracks also have obvious effects on the sif, which can be neglect only when the distance is bigger enough
研究表明：裂面狀態對k _的大小沒有影響，而對k _的影響卻很大，相同應力條件下，裂面狀態會影響裂紋的開裂角和開裂方式；有限板的邊界對應力強度因子有一定的影響，其k比無限板中的k略大；裂紋間的距離、夾角等因素對裂紋間的干涉效應均有較大影響，裂紋間的干涉效應對應力強度因子的影響非常顯著，只有當裂紋間的距離充分大時，干涉效應才可忽略。 -
Along with the progress of drilling technology, many new types of bha such as steering motor assembly, dropping assembly with eccentric bend sub, dropping assembly with flexible connection are developed based on common building, dropping and holding assemblies. for using these bha, a new mathematical model is put forward for 3d static analysis of these types of bha under small deflection. and its weighted residual solution is given. the mathematical model includes ( 1 ) differential equations ; ( 2 ) boundary conditions at drill bit, stabilizer, bend angle, diameter change, tangential point and borehole wall ; ( 3 ) lateral forces and deflection angles of bit. the software based upon this method runs well
為了更好地應用各種新鉆具，建立了適用於對普通下部鉆具、導向鉆具、帶偏心彎接頭和柔性接頭的下部鉆具進行三維小撓度靜力學分析的數學模型，包括（ 1 ）微分方程； （ 2 ）鉆頭、穩定器、彎角、變截面、切點和井壁的邊界條件； （ 3 ）鉆頭的側向力和鉆頭轉角.給出了該模型的加權余量解.用該方法編寫的軟體應用效果良好 -
From the vehicle safety angle, it provides theory and technical support for the research on automatic drive, intelligent drive and traffic safety. this paper is based on the study of single car external flow field about the simulation on the ground boundary layer, the rotating wheels and the crossing wind load, and on the two cars running - in - row and overtaking maneuvers
同時使用穩態超車的研究方法，利用了階背式、快背式和廂式mira模型代替轎車模型進行了不同車型超車過程的對比研究，利用定性和定量兩種方法研究了不同轎車車型在超車過程中的異同。 -
It builds a physical model according to hoisting capacity, lifting angle and structural stabiliy, theory, solves the problem of function relationships among lifting capacity, lifting angle, boom weight, boom dimension and deduces the natural boundary condition of design parameters, providing a new way to determine crane design parameters
摘要將起重量和起吊幅度為基本設計依據，以壓桿穩定理論為分析基礎，結合專業知識，建立物理模型，解決了起重量、起吊幅度與吊臂質量、吊臂主要參數之間的函數關系的難題，首次確定出設計參數的自然邊界條件，為起重機設計者提供了確定設計參數的新方法和科學依據，具有開創意義。 -
A numerical investigation about effects of boundary layer suction in low - speed compressor stator cascade with large turning angle was carried out
摘要本文採用數值方法研究了低速條件下附面層抽吸對大折轉角矩形葉柵流場的影響。 -
Equations of mesh, shorting contact line, undercutting limit line, meshing limit lines and the existence conditions, angle between the direction of relative speed and the direction of contact line, induced normal curvature about every point on the contact line are established. moreover, the paper also theoretically analyzed the error of the grinded gear surface. on the basis of the theory, the computer program is worked out to automatically produce the contact line and the boundary curves of mesh. analysis of meshing circs under different parameters can be done so that we can gain the best process condition
首先對漸開面二次包絡理論進行了深入的探討，推導出了兩次嚙合的嚙合方程式、瞬時接觸線方程式、根切界限線方程式、嚙合界限線的方程式及其存在條件，相對運動速度方向與接觸線方向的夾角及接觸線上各點的誘導法曲率；此外，還對磨齒后工件的齒面誤差進行了理論分析；並在理論基礎上編制了相應的計算機程序，自動生成接觸線族及嚙合界限線，對不同參數條件下的嚙合情況進行分析，可以使工藝條件達到最佳狀態；最後研究了磨齒裝置，設計了磨齒機的傳動系統。 -
Aiming at the complex boundary in the numerical calculation of flood diversion area, a bevel angle cartesian method is adopted based on the traditional cartesian method
摘要針對分蓄洪區水流數值計算中的復雜邊界問題，在傳統笛卡爾坐標方法的基礎上改用斜角笛卡爾方法。 -
The main work includes : for the torsional vibrations of a rigid disk on saturated media, first, the dynamic governing equations are solved by the use of hankel transform and the general solutions in the hankel transform fields are formulated. then, considering the mixed boundary - value condition, the dual integral equations of the torsional vibrations of a rigid disk on saturated grounds are obtained, which can be reduced to the fredholm integral equations of the second kind and solved by numerical procedures. consequently, the dynamic compliance coefficient curves and the torsional angle amplitude curves versus the dimensionless frequency are presented and contrasted to that of the elastic one
在前人研究的基礎上，本文基於陳龍珠等曾提出的一組實用飽和土波動方程，用解析或半解析的方法首次較系統而深入地研究了飽和半空間地基與基礎的扭轉振動問題，主要工作有：對于飽和地基上剛性圓板的扭轉振動，作者首先採用hankel變換求解了動力控制方程，得到了該控制方程在hankel變換域內的通解，然後由混合邊值條件建立了飽和地基上剛性基礎扭轉振動時的對偶積分方程，並將其化為易於數值求解的第二類fredholm積分方程，用數值方法計算了基礎的動柔度和扭轉角幅值與振動頻率的關系曲線，並將其與單相彈性介質情況進行了對比分析。 -
Boundary element analysis on the flow field and pressure field of flow around cascades with small angle of attack
小沖角翼柵繞流問題流場和壓力場的邊界元分析 -
Applying the differential equation and boundary condition of the director tilt angle, the essential characters are discussed, which include the threshold voltage and the saturation voltage
根據滿足的微分方程和邊界條件，研究了液晶盒的基本性質，包括閾值電壓和飽和電壓。 -
The effects of jet velocity ratio and skew angle were addressed. several co - rotating minute vortexes on the turbulence boundary layer would coalesce together that leaded to a big vortex. the effect of the big vortex was greater than a single minute one
單排多個同向射流與主流作用所產生的獨立小渦旋將在流向下游發生合併，形成大渦旋，大渦旋對邊界層的作用效果要強于單個獨立小渦旋。 -
Navier - strokes equation was solved using simple method. lam - bremhorst k - e was used to simulate turbulent flow. it was indicated in this thesis that a longitudinal vortex would be produced after the jet exhausted from a plate into a boundary layer at a pitch angle and a skew angle
研究結果表明，有一定傾斜角度的單個射流與主流作用后，將在下游產生一個流向渦旋，渦旋使得邊界層內的速度和雷諾應力發生嚴重扭曲，從而形成上洗區域和下洗區域。 -
With a voltage operating, the flexoelectric effect for a nematic liquid crystal ( nlc ) cell has been investigated theoretically with an analytical approach, and the absorption of ions has not been taken into account. the equations and the boundary conditions of the nlc tilt angle 6 have been deduced
文中假定液晶在界面處沒有離子吸附，導出了電場作用下指向矢傾角滿足的方程和邊界條件，以及撓曲電效應引起的表面能，該表面能在上下基板處形式相同但是符號相反。 -
Due to the existence of the eddy and the abrupt bend of the stream line, the pressure on the four faces has the distribution as follow : the lowest pressure appears at several centimeters after the angle point along the top boundary, the highest pressure appears near the center line of the vertical shaft on the bottom boundary, near the angle point, the pressure on the inner boundary decreases with the decreasing height, the pressure on the external boundary decreases slightly in the right - angle region, and increases obviously near the corner
迴流漩渦的存在，以及直彎處流線的急劇彎曲，導致壁面壓力分佈在上表面距彎點一定距離后出現壓力最小值，下表面上，在豎井中心線略偏下游的位置出現壓力最大值，豎井內表面接近彎點處出現壓力沿程降低的現象，豎井外表面壓力在進入直彎后先是沿程略有降低，在直彎角落處又明顯升高。 -
When a ray of light encounters a boundary, such as that between air and water, its speed changes ; so does its angle of travel
當一束光線遇到一個界面，如空氣與水之間的界面，光的速度就會發生改變，光的運動角度也就同樣發生改變。 -
The experimental tests are made on the right - angle dissipator with square cross - section, a new internal energy dissipator. in order to obtain its hydraulic characteristic, lda is used to measure the detailed velocity. the pressure along the wall boundary is also measured
2為深入研究直彎式消能工的水力特性，本文進行了方管的直角拐彎的試驗研究，採用二維激光流速儀測得了詳細的流場，並測量了壁面壓力分佈情況。 -
Finally, the two dimensional flow in the diffuser is calculated, the results show that the change of ma makes an effect to the performance of the diffuser. owing to the accretion of ma, the action of oblique shock waves and the boundary layer pricks up, the flow separates from the wall where the shock waves impinge on the boundary layer more quickly, the cluster of diamond shock waves becomes larger. moreover, by comparing the change of flow field under different structure parameter, it is found that the augment of length of constant area section alter the structure of fluid field little, a smaller area ratio and larger angle of compression section make the diffuser working better
最後，針對擴壓器中的二維流場進行了數值模擬，結果表明馬赫數對擴壓器性能影響較大，隨著馬赫數的增大，擴壓器管道內激波-附面層干擾加劇，流動從附面層分離相應加劇，激波串數目增多;通過比較不同結構參數下的擴壓器內流場，發現等直段長度的變化幾乎沒有改變流場結構，只是對局部流場稍有影響，並且在其它參數不變的情況下，一定范圍內減小面積比a2 / a1和增大收縮角有利於擴壓器性能的提高。 -
According to the theory of boundary layer control and aerodynamics of delta wing at medium attack angle, the generation mechanisms of rolling, pitching, yawing moments, which are produced by coupling between the microactuator array and boundary layer near the leading edge, have been discussed
首先，結合空氣動力學的邊界層控制原理以及三角翼在中等攻角條件下的氣動特徵，詳細討論了微致動器陣列通過與前緣邊界層的耦合產生三角翼翻滾、俯仰和偏航等力矩的機理。
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