半椭圆 meaning in Chinese
semiellipse
Examples
- Abstract : this article gives us the new concept and its meaning of the semi - ellipse roller , and discussed the function of the semi - ellipse closing roller from four aspects , that is from increasing the pipe deformation , pipe bouncing control , improving pipe edge rigidity and stablity , and realizing the common usage of the closing roller
文摘:提出半椭圆闭口孔型新概念和其内涵，分别从增大管坯变形量、控制管坯回弹、提高管坯边缘刚性和运行的稳定性以及实现闭口孔型辊的共用性等四个方面论述了半椭圆闭口孔型辊的作用。 - It also gives the semi - ellipse closing roller forming principle & quot; semi - ellipse + bouncing = round & quot; , and makes the principle formulated and quantitative for the control method and pattern of the pipe forming bouncing . this is the reasonable model for forming of thick wall pipe and high stress pipe
指出半椭圆闭口孔型辊的成型思想是“半椭圆+回弹量=圆” ，并且使这一思想公式化、数量化，为控制成型管坯的回弹提供了方式和方法，是成型高强度厚壁管的理想模具。 - The main results and academic contributions of the dissertation can be summarized as following : 1 ) for the difficulty to obtain the accurate analytical solution of the stress constraints around 3d cracks , detailed 3d fe analyses have been conducted to study the out - of - plane constraint factor tz around a straight through - thickness crack , a quarter - elliptical corner crack and a semi - elliptical crack embedded in an isotropic elastic plate subjected to uniform remote tension loading . the distributions of tz are minutely studied in the forward section of the cracks . strong 3d zones ( tz > 0 ) along the crack front were investigated despite the far field stress - free boundary conditions
全文主要研究内容和学术贡献如下: 1 .针对一般三维裂纹端部场应力约束准确解析的困难,对均匀拉伸载荷作用下各向同性弹性板中穿透厚度中心直裂纹、半椭圆表面裂纹和1 / 4椭圆角裂纹进行了大量详细的全场应力三维有限元分析,首次全面分析了非穿透裂纹端部场三维影响区范围,给出了不同形状三维裂纹前沿离面应力约束因子tz的数值解,并结合k场平面解给出了非穿透裂纹端部应力场k - tz双参数描述。