This paper discusses the necessary and sufficient condition to represent the Archimedes helix with Bernstein-like basis of order four.
讨论了用4阶拟Bernstein基表示阿基米德螺线的充要条件,利用该充要条件可以得到用4阶拟Bernstein基表示的阿基米德螺线的控制顶点,从而可以方便地表示阿基米德螺线,并且有明显的几何意义。
In the CAGD/CAD system, Archimedes helix is an important and basic geometry object.
在CAGD/CAD中,阿基米德螺线是一个重要和基础的几何对象。
An interpolation of spiral of Archimedes algorithm based on time division is developed in the article.
提出了一种基于时间分割的阿基米德螺线的直接插补算法。
Design of the Archimedean Helix Inlet in a Hydrocyclone;
水力旋流器中阿基米德螺线入口的设计
In this paper, a new type of angular displacement transducer with Archimedes spiral cam is proposed.
提出了一种将阿基米德螺线型凸轮用于角位移传感器的新方法,此角位移传感器线性度、重复性、耐磨性能均较好,安装方便,很有实用价值。
Based on the Reynolds stress model CFD numerical simulation method, the experimental study of the inflow field and separation feature of nine forms of entrance structures of the oil-water separation hydrocyclone including vortex curved entrance and Archimedes spiral entrance is carried out and four kinds of ideal optimized entrance structures are obtained.
采用雷诺应力模型CFD数值模拟方法,对涡线形曲面入口、阿基米德螺旋线形入口等9种油水旋流分离器入口结构形式的内流场和分离特性进行了试验研究,得出比较理想的4种优化入口结构形式。
Based on the principle of hydrodynamics,this paper deduces an equation,which shows a flow rate-relative pressure relation of Archimedes spiral groove.
利用流体力学有关原理 ,导出阿基米德螺线槽流量特性方程 ,为水力喷砂割缝设备微型流量控制阀的设计、制造、实验、应用提供了初步理论依
Optimum design for double-horse head beam pumping unit with rear horse head′s outline of spiral of Archimedes
阿基米德螺线双驴头抽油机优化设计
Mathematical Simulation of Disc Extruder Based on Archimedean He lix
基于阿基米德螺线的磨盘挤出机数学模拟
Study of Archimedean Spiral Method for Testing Thermoplastics Fluidity
塑料流动性能的阿基米德螺线测定法研究
The Numerical Calculation of Mixing for Archimedes Spiral Mixing Disc
阿基米德螺线式混炼盘混炼效果的数值计算
The Spherometer of Designed with the Principle of Archimedes Spiral
应用阿基米德螺线原理设计的球面曲率计
Design of the Archimedean Helix Inlet in a Hydrocyclone
水力旋流器中阿基米德螺线入口的设计
The Calculation of Interpolation of Spiral of Archimedes Based on Time-divided Method
基于时间分割法的阿基米德螺线的插补算法研究
A neat solution of the quadrature problem can be achieved with the spiral of Archimedes.
用阿基米德螺线能成功地解决化圆为方的问题，方法很简单。
THE PROBLEM OF TURNING OF THE BURNABLE EVEN MASS ARCHIMEDES HELICES PLATE AROUND A FRICTION-FREE VERTICAL FIXED AXIS ON A HORIZAONTAL PLANE
水平面上匀质可燃阿基米德螺线盘绕铅直光滑定轴的转动
Plane Archimedes spiral antenna
阿基米德平面螺旋天线
The moment method analysis of the plane Archimedean spiral antenna
平面阿基米德螺旋天线的矩量法分析
A New Low Profile Archimedean Spiral Antenna
一种新型的低剖面阿基米德螺旋天线
Analysis of Archimedean spiral antenna using moment method with curved segmentations
曲线分段的矩量法分析阿基米德平面螺旋天线
elevator ,Archimedean screw-type, for liquids
阿基米德螺旋式升液器
Archimedean screw bow unit
阿基米德螺旋艏组件阿基米德螺旋船首组件
Low-g micro inertial switch based on Archimedes' spiral
基于阿基米德螺旋线的低g值微惯性开关(英文)
A new-type planar Archimedean spiral antenna,the zigzag planar Archimedean spiral antenna,is presented.
对一种新型的平面阿基米德螺旋天线--锯齿状平面阿基米德螺旋天线进行了研究。
Analysis and design of a new-type planar Archimedean spiral antenna
一种新型平面阿基米德螺旋天线的分析与设计