锥角

通过闪光X射线摄影技术，研究了两种大锥角射流的特性及其对钢靶的侵彻，并与小锥角射流进行了对比。

By means of X-ray flash radiographs , the jet formation and penetration of two types of shaped charge with large cone angle were investigated , and compared with that of the jet of shaped charge with small cone angle ( 42 °) .

Shepp-Logan模型的仿真实验结果表明在适中或较大锥角情况下，改进算法显著改善了FDK算法所存在的锥向衰减伪像。

Computer-simulated studies show that the proposed algorithms effectively reduce the artifact of the intensity drop inherent to the FDK algorithm at appropriate or big cone angle .

H型钢轧制中立辊锥角的影响研究

Study on the Effect of Vertical Roll Cone Angle During H-Beam Rolling

环缝磨的锥角探讨关于k紧优双环网络

Cone Angle of Annular Gap Mill On k-tight Optimal Double-Loop Networks

基于ANSYS的生物质液压成型模具锥角优化

Study of Mold Cone Angle of Hydraulic Briquetting Press Based on ANSYS

计算表明，临界锥角随λ的增大而增大，且随粉粒直径dp的减小而增大。

Numerical calculation result show that the critical angle of the nozzle is increased with the ratio also the decrease in size .

针对不同立辊锥角的H型钢万能轧制过程，采用三维弹塑性有限元法进行了模拟，分析了不同锥角情况下翼缘的变形特点和水平辊轧制力的变化。

H-Beam rolling processes with different vertical roll cone angles have been simulated by using three-dimensional elastoplastic finite element method .

提出了基于模糊C均值聚类和图像匹配，检测喷雾锥角和喷雾不均匀度的方法，并应用于发动机喷嘴性能检测。

A method based on fuzzy C-mean clustering and image matching algorithms are proposed to detect atomization angle and uniformity , applied to performance test-bed of engine nozzle .

研究了喷雾锥角对燃烧过程的影响规律以及喷雾锥角对碳烟和NOx生成的影响。

The influence of spray angle on the combustion process and formation of soot and NOx was investigated .

对于波矢在以电场方向为轴顶角为2θc锥角范围内的哨声，外电场的作用使波增长；波矢在此锥角范围之外，外电场的作用使其衰减。

It is found that the waves are growing when the angle between wave vector and electric field is in the range of θ c , otherwise the whistler waves are damping .

设计了一种第一级能够形成环形射流的W型聚能装药，第二级采用大锥角聚能装药的串联战斗部，并且通过试验研究了该种战斗部对靶板的毁伤效果。

W type liner that can form annular jet is adopted as the forward charge and the wide angle shaped charge is adopted as the follow through one .

通过二维VOF数值模拟计算了可视化离心喷嘴雾化锥角大小、流场结构以及速度分布等。

We calculated the size of the spray cone angle , flow field structure and velocity distribution of the nozzle through VOF two-dimensional numerical simulation .

针对燃油喷射过程中的喷油提前角和喷孔锥角两个因素，本文应用三维CFD仿真软件AVLFIRE对CY4102直喷式柴油机的燃烧过程进行了数值模拟计算。

In this paper the CFD simulation software AVL FIRE is introduced to simulation combustion process of 4102 DI diesel engine in connection with the fuel injection advance angle and nozzle hole cone angle of fuel injection system .

为了改善自然吸气直喷柴油机的排放性能，试验研究了喷油嘴孔径、喷孔锥角及喷油泵柱塞直径等参数对发动机NOx和碳烟（DS）排放的影响。

Effects of injector hole diameter , nozzle hole cone angle , oil pump plunger diameter on emission from a natural aspirated direct injection diesel engine 385 were experimentally studied in order to reduce significantly emission pollutants .

研究表明，通过减小油嘴喷射锥角、增加脉冲喷射次数和大幅度提前喷射定时，能够在获得低NOx排放的可控预混燃烧过程的同时，保证HC和CO排放只有小幅增加。

The experimental results indicate that reducing nozzle cone angle , increasing injection pulse number , and advancing the injection timing are the effective ways for achieving low NO_x emission and maintaining the level of HC and CO emissions .

Marc，针对联接导管位置不同的两种双锥形管接头密封管路联接结构，计算分析双锥形管接头锥角和锥角差对管路密封性能的影响。

Marc was utilized to analyze the influence of the taper and the difference of taper of the double-cone pipe union on the performance of sealing pipeline according to the basic conditions of metal-seal .

例如，除了位置、方向和光线颜色，它还能够控制spotlight锥角和锥体离心值。

For example , in addition to the location , direction , and color of the light , it 's possible to control the angle of the spotlight cone and the center bias of the cone .

当背压大于LPG的临界压力时，两种混合燃料的喷雾贯穿距离和喷雾锥角均随喷射压力的上升、喷孔直径的增大而增大；

When the back pressure is larger than the LPG critical pressure , the spray penetrations and spray cone angles of both LPG / diesel fuel blends manifest to increase with the increase of injection pressure and nozzle hole diameter .

首先，在低速撞击的条件下，基于准静态Hertz的理论与萨布斯基理论，分析了陶瓷破碎锥角的形成；

At first in the condition of low-velocity impact it is discussed with the formation of ceramic smash cone angle on the base of quasi-statistic Hertz and 3 a 6 y A c - theory .

试验结果表明，在采用155°和125°油束空间分布锥角的两种油嘴时，通过改变多脉冲喷射定时均可控制预混燃烧放热幅度，但对NOx、HC和CO排放的影响不同；

The test results show that the nozzles with 155 ° and 125 ° fuel beam distribution cone angle can both control the heat release rate by changing multi-pulse timing , but the effect on the emission of NOx , HC and CO is different ;

结果表明，ACM方法能够消除阈值法，尤其是直接量取法所包含的主观因素，提高了雾化锥角测量的准确度。

The results showed the ACM method eliminates the arbitrary factors inherent in the threshold method , especially subjective factors included in the direct measuring method , which increases the accuracy of the spray cone angle test .

第四章利用SPSS数据分析软件分析虹吸动态腐蚀大锥角光纤探针制备与传统静态腐蚀制备的光纤探针进行对比，从数量统计的角度分析该新方法的优势。

Chap. 4 : Make use of the SPSS ( statistical product and service solutions ) to compare the data of the cone angle and taper length between the large cone optical fiber probes by dynamic chemical etching based on siphon principle and traditional chemical etching method .

同时，选择适当的液位差，通过一步腐蚀法制备出针尖尺寸小于50nm，针尖锥角125°的双锥角光纤探针。

Moreover , double-taper probes with apex diameter less than 50 nm and taper anger larger than 125 ° could also be obtained by selecting appropriate water level difference . angle .

喷孔直径由0.5mm增大到1mm时，喷雾贯穿距离减少约6000/，空心锥角增大7.5倍；

When the nozzle diameter increases from 0.5 mm to 1 mm , the spray penetration distance decreases by 600 / 0 and the hollow spray cone angle increases by 7.5 times .

在这种情况下，本文对三种非平面源轨的精确重建方法进行了研究，并对FDK算法在中大锥角重建时产生的伪影进行了校正。

In the situation , the exact reconstruction algorithm of three nonplanar orbits is studied , and study the calibration method to eliminate artifacts in reconstructed slices with large cone angle in the paper .

试验结果发现，在相同喷射条件下，由于LPG较好的蒸发和雾化特性，其喷雾贯穿距离较柴油的短，喷雾锥角较柴油的小。

Experimental results showed that the spray tip penetration of LPG was shorter than that of the diesel fuel , and the spray cone angle of the LPG was smaller than that of the diesel fuel under the same injection conditions since LPG was possessed of better evaporation and atomization .

利用此模拟计算结果，可以揭示气缸内气体背压和气体温度、喷射压力、喷孔直径及Sauter平均直径对喷注贯穿距离、喷雾锥角的相互关系。

This fuel spray Simulating calculation can reveal the relations among penetration , spray cone angle , injection pressure , gas back pressure and temperature in the cylinder , nozzle diameter , Sauter mean diameter , etc.

文中主要介绍Geldart-A颗粒在三种不同锥角的锥形流化床，随着气体表观速度的增加，呈现出两种不同的流化区域，即固定床和喷动床。

In this paper , fixed bed regime and spouting bed regime are observed successively with the increase of superficial gas velocity for Geldart-A powder in a conical bed with three cone angles .

不同时刻射流的分布显示，在拉伸过程中，锥角为60°的聚能射流速度变小，速度梯度较大，头部速度为4500m·s-1；

The distribution figures reveal that the cone angle of 60 ° cumulative jet speed has the trend of becoming smaller at different time of jets during the process of being stretched , the speed gradient is bigger and the head speed is 4 500 m / s.

为此，设计和试验了绿麦芽喷动床干燥机，其柱体内径为180mm，高为700mm，锥体部分高为100mm，锥角为90°，气体入口管内径为25mm。

Therefore , a spouted bed dryer was designed and tried with a column of 180 mm in inner diameter and 700 mm in height , a cone of 100 mm in height and 90 ° in conic angle , and a gas inlet of 25 mm inner diameter .