strong ellipticity

Simulation of billet rolling in oval roll-profile by FEM;

借助有限元分析软件ANSYS/LS DYNA ,对方轧件在椭圆孔型中的动态轧制过程进行模拟仿真 ,重点分析了轧制过程的轧件的变形情况和力能参数。

By calculating and comparing the aerodynamic performance of elliptic airfoils with different thickness-chord ratio using numerical calculation method,the 16% thickness elliptic airfoil is selected to be the experimental airfoil,and the experimental investigation on this airfoil is performed in two-dimensional testing section of NF-3 wind tunnel at Northwestern Polytechnical University.

为对椭圆翼型的低速气动特性进行研究,通过不同相对厚度椭圆翼型气动特性的数值计算和分析比较,选取16%相对厚度椭圆翼型作为试验翼型,在西北工业大学NF-3风洞二元试验段内对此翼型的低速气动特性进行了试验研究,试验采用表面测压和尾排型阻测量技术。

The high speed experimental investigation on a 16% thickness elliptic airfoil was performed in two-dimensional testing section of FL-21 wind tunnel at China Aerodynamics Research and Development Center.

针对旋转机翼飞机主机翼翼型设计的特殊要求,在中国空气动力研究与发展中心FL-21风洞对16%相对厚度椭圆翼型马赫数0。

Experimental investigation on high speed aerodynamics performance of two elliptic airfoils with 16% relative thickness and 0% and 3% relative curvature and with different camber ratio was performed in a two-dimensional testing section of FL-21 wind tunnel at China Aerodynamics Research and Development Center and TST-27 wind tunnel at Delft University Holand,respectively.

针对主机翼翼型的这一特殊要求,对16%相对厚度,相对弯度分别为0%和3%的两种椭圆翼型的高速气动特性进行了风洞实验研究,试验分别在中国空气动力研究发展中心FL-21风洞和荷兰代尔夫特大学TST-27风洞进行,采用表面测压和尾排型阻测量技术。

FEM Simulation on the Two-pass Continuous Cold Rolling of Oval Profile 304 Stainless Steel Wire;

304不锈钢线材椭圆孔型两道次冷连轧有限元模拟

Analytical Model for Cross-Sectional Area of Workpiece in Round-Oval-Round Pass Sequence in Bar Rolling

棒材轧制圆-椭圆-圆孔型中轧件面积计算模型

Accurate spread prediction model in alloyed rod rolling by round-oval-round pass sequence

圆-椭圆-圆孔型中轧制合金钢棒材时宽展迭代模型的建立

Extruded Elliptical-hole Photonic Crystal Fibers with Double Defect

压缩型双缺陷椭圆孔光子晶体光纤(英文)

EFEAL Extended Field Elliptical Aperture Lens

可扩展扫描椭圆孔镜头

The modeⅢ stress intensity factor is deduced by considering the case in which the minor axis vanishes when the ellipse degenerates to a Griffith crack.

并利用所获得的椭圆孔洞结果推断出班型裂纹的应力强度因子。

Circle flange forming by prefabricated elliptical hole in stainless steel elbow

不锈钢弯管上用预制椭圆孔翻边成形圆孔

self-adjoint elliptic differential operator

自伴椭圆型微分算子

Finite element analysis about the intensity and the stiffness of the elliptical manhole

椭圆形人孔强度和刚度的有限元分析

The transformation of model is the replacement of ellipsoid and elliptical cylinder for sphere and circular cylinder.

通过模型变换法,可用球体和圆柱体来代替椭圆球和椭圆柱。

Liouville Type Theorems for Solutions of Elliptic Equations;

椭圆型方程解的Liouville型定理

Analysis ans Diagnosis of Main Source of Roundness error in Bore of Pump Case

泵壳内孔椭圆形误差主源的分析与诊断

Study on Buckling of Web with Oval Openings in I-Shaped Beam;

工字梁中心开椭圆孔腹板的屈曲性能研究

Effects of an elliptic hole on the stress distribution in the superconducting trapped-field magnet

椭圆孔对俘获场超导体应力分布的影响

Resembling an ellipse in shape;elliptical.

椭圆形的形状类似椭圆的，椭圆的

The rotation in the elliptic is retrograde.

在椭圆内的运动属于逆进型。

Results on Existence and Regularity of Solutions for Some Quasilinear Equations;

R～N上一类拟线性椭圆型方程的研究

Liouville Theorem and Green Function for Degenerate Elliptic Equations;

退化椭圆型方程的Liouville定理及Green函数