In the research and development of the countercheck seal s software design, the author uses approximate ellipse which is generally utilized in engineering and works out the initial value "k"of character space which the arc character arrangement needs in elliptical seal.
作者在研制开发防伪印章的软件设计中 ,利用工程学中普遍使用的近似椭圆 ,求出了椭圆印章弧上文字排列所需的精确字间距初始数值k 。
Research on surface integrity in ultrasonic elliptic vibration grinding of ZTA ceramics;
超声椭圆振动磨削ZTA的表面完整性研究
The conditions to get the elliptic vibration and the design method of the system structure were also proposed based on above analyses.
提出了一种新型的单激励纵弯复合椭圆振动切削系统的结构。
The principle of the ultrasonic elliptic vibration produced by polishing tool is introduced and elliptic motion characteristics of the polishing tool are tested.
介绍了抛光工具超声椭圆振动产生的基本原理,并实际测试了抛光工具的椭圆运动特性。
Transducer of the ultrasonic elliptical vibration cutting based on the finite element method;
基于有限元分析的椭圆振动切削换能器
Based on experiments of the face cutting of the weak workpiece,effects of the ultrasonic elliptical vibration cutting on the weak workpiece are researched.
根据弱刚度零件端面切削实验,研究了超声波椭圆振动切削对弱刚度零件的切削效果。
The paper discusses the structure,principles and characteristics of a new elliptical vibration elastic sieve with shunt functio
文章阐述了一种新型椭圆振动弹性筛网分流筛的结构、原理和工作特点。
Parametric modeling of the balanced elliptical motion shale shaker;
平动椭圆振动筛参数化建模
The construction and the operational principle of motor are described, and the elliptical motion of the driving point of the actuator is proved.
阐述了电机实现两个自由度直线运动的原理 ,并从理论上证明了电机驱动点的运动轨迹为椭圆运动。
The principle of the micro circular traveling wave ultrasonic motor is described mostly,which include the structure of the mo- tor,the principle of traveling wave,the principle of elliptical motion,the drive principle of the motor.
重点介绍了微型环型行波超声波电机的结构、行波的产生、椭圆运动的产生、驱动原理等,最后介绍了制作这种电机的实验结果。
From the formula of the plane curvilinear motion acceleration and the mathematical knowledge of ellipse,the author deduces the formula of the relative physical elements in the planetary elliptical motion and offers a simple way to deal with this kind of problems.
从平面曲线运动加速度公式出发,运用有关椭圆的数学知识,导出行星椭圆运动时相关物理量的表达式,对此类问题给出了一种简捷的处理方法。
Research on the Impedance Matching of Piezoelectric Transducer for Elliptical Vibration Cutting
椭圆振动切削换能器的阻抗匹配研究
Research of Modeling Balanced Elliptical Motion Shale Shaker System Based on Dynamics Simulation
平动椭圆振动筛动力学模型建模方法研究
Experimental Research on Grinding Temperature of ZrO_2 in Ultrasonic Grinding Dressed by Elliptic Vibration
椭圆振动修整超声磨削ZrO_2温度试验研究
Simulation of Elliptic Vibrating Screen Based on Virtual Prototype Technology
基于虚拟样机技术的椭圆振动筛仿真分析
Research on Micro-surface Formation Mechanism of Ultrasonic Elliptical Vibration Cutting
超声椭圆振动切削表面形貌形成机理的研究
Basic Research on Hybrid Technology of Ultrasonic Elliptic Vibration Assisted Chemical-Mechanical Polishing a Silicon Wafer;
超声椭圆振动—化学机械复合抛光硅片技术的基础研究
When the end of the electric field vector travels in an ellipse, the light is elliptically polarized.
电场矢量的末端沿一椭圆移动的光叫椭圆偏振光。
The Work Principle and Dynamic Characteristic Analysis of Variational Elliptical Shaker;
变椭圆轨迹振动筛的工作原理及动态特性分析
THE NONLINEAR VIBRATION OF ELLIPTIC PARABOLOID CABLE NET USING CARBON FIBER CABLES UNDER FOUNDATION DISPLACEMENT EXCITATION
基础位移激励下椭圆抛物面碳纤维索网的振动
Nonlinear vibration of elliptic hyperbolic net using carbon fiber reinforced polymer
椭圆双曲抛物面碳纤维索网非线性固有振动
Upper Estimates of Weighted Eigenvalues for Uniformly Elliptic Problem of the Vibration of Membranes
膜振动一致椭圆型问题的加权特征值上界估计
Numerical simulation for vortex-induced vibration of an elliptical cylinder with two degree-of-freedom
两自由度椭圆柱体涡激振动的数值模拟
elliptical cladding single-polarization fiber
椭圆包层单偏振光纤
Application of Three Shafts Equal-thick Elliptical Screen Technology and Research on Self-synchronization;
三轴椭圆等厚振动筛分设备技术应用及其自同步研究
Free Linear Vibration and Buckling of Super-Elliptical Plates Resting on Symmetrically Distributed Point-Supports on the Diagonals
沿对角线对称分布的点支撑超椭圆板的线性自由振动和屈曲分析
oval-eccentric gearing
椭圆-偏心齿轮传动
ellipsoidal cavity resonator
椭圆形旋转式空腔谐振器
Second order Hamiltonian Systems and Elliptic Resonant Boundary Value Problems;
二阶Hamilton系统与椭圆共振边值问题