角台

一种特殊的3-UPU并联角台机构的运动分析

Kinematical analysis on a special 3-UPU truncated pyramid parallel mechanism

欠秩3-TPT并联角台机构的逆运动力学

Inverse Kinematics of Deficient-Rank 3-TPT Parallel Pyramid Mechanism

欠秩3-UPU并联角台机构工作空间分析

Workspace analysis of deficient-rank 3-UPU parallel truncated pyramid mechanism

采用螺旋理论，首先分别建立了3-UPU并联角台机构在初始位形下和沿X轴方向发生移动后的一阶影响系数矩阵。

Based on the screw theory , the first-order effect coefficient matrixes of a 3-UPU parallel pyramid mechanism under initial position and movement along X-coordinate axis are established .

研究了新型三自由度的3－RPS并联角台机构，根据其结构特点建立了位移反解方程；

According to the characteristics of a three degree of freedom 3 RPS in parallel actuated pyramid mechanism , the inverse kinematics equations are established .

上述分析有助于从整体上把握3-（RP）S角台机构的瞬时运动特性，为进一步研究其它角台机构的运动规律，促进该类机构的应用奠定了良好的基础。

The above study helps us comprehend the instantaneous kinematic property of the 3 - ( RP ) S pyramid mechanism on the whole , and lays a foundation of the research on the kinematic laws and applications of other pyramid mechanisms .

分析了一种特殊的三自由度3-UPU并联角台机构（支链移动副两端转动副相互垂直）的若干运动学问题。

A number of kinematics problems of a special 3-DOF truncated pyramid parallel mechanism ( the moving pair of branch chain and rotation pair at both ends are mutually perpendicular ) were analyzed .

针对欠秩3-TPT并联角台机构的结构特点，首先找出了该机构的几何约束，在此基础上建立起了求解机构的反解方程。

According to the characteristics of three degree-of - freedom 3-TPT in-parallel pyramid mechanism , firstly , the condition of geometry constrain is proposed . Then the inverse kinematic equations are established based on the constrain .

三自由度并联角台机构转轴存在的子空间

The Subspace of Rotational Axes of 3-DOF Pyramid Parallel Mechanisms

根据空间几何条件并通过变量代换，确定了机构角台的位置和姿态。

The orientation is successfully determined by coordinate transformations in terms of the special geometric conditions .

10°锥角台锥型液相色谱柱尺寸等比例放大和柱内谱带流型的可视化研究

Studies on Column Size Scale-up and Flow Profile in Conical Shape Liquid Chromatographic Column of 10 ° by Visualization Method

角台机构和其他并联机构一样，正解是难点。

Similar to other parallel mechanisms , it is also difficult to get the direct problem of the 3-RPS pyramid mechanism .

建立了角台机构的反解方程，通过确定结构约束和齐次变换矩阵，解得角台机构的三个移动副输入参数。

Then it builds the equations for inverse problem and obtains the three input parameters according to the structure constraints and homogeneous transforming matrixes .

模拟咀嚼肌加载，用ALGOR软件分析直基台和10°、20°、30°角基台修复时，种植体骨界面应力、应变分布的不同。

A simulated force of masticatory muscles was loaded in the mathematical models to analyze the stress and strain distribution in the implant-bone interface by using ALGOR software program , when dental implants were conjunct to straight , 10 ° . 20 ° and 30 ° abutments , respectively .

基于傅立叶神经网络的角振动台摩擦补偿

Friction compensation for angular vibrating table based on fourier neural network

为何此隐肩支台系统将会减少弯角支台的使用？

Why will this Stealth Shouldered Abutment system decrease the use of angled abutments ?

低频标准角振动台

Low Frequency Standard Angular Exciter

根据光纤陀螺的检测原理，分析了该测试方法与角振动台测试法的等效性。

This method was compared with the dynamic test turn table method based on the principles of the gyroscope detection method .

采用伺服控制系统完成两轴液压振动台台面自由度驱动信号与液压缸位移驱动信号的转换，实现角振动台的自由度控制。

The servo control system is used to realize the DOF control of vibration table , i.e. , to convert the DOF drive signals to hydraulic displacement drive signals .

高频角振动台控制系统设计的核心问题是如何提高对周期参考输入信号的跟踪精度以及如何提高对周期性干扰信号的抑制能力。

The main problem for the designed control system of high-frequency angular vibration table is how to promote the tracking precision of the periodic reference input signal and how to the periodic disturbed signal .

剑桥公爵夫妇继续他们的澳大利亚之行，此行他们来到位于卡顿巴的回声角观景台，景点被数百名围观群众包围，众人都想一睹这对皇室夫妇的真容。

And the Duke and Duchess of Cambridge continued their Australian tour with a trip to echo point lookout in Katoomba , surrounded by hundreds of on-lookers eager for a glimpse of the royal couple .

论述了首次采用双列圆柱滚子轴承于三轴台中框水平轴系上，使三轴精密角运动台达到了三个轴摆角1〃、两个轴垂直度1〃的要求。

This paper states the method of double-row cylindrical roller bearing in the back-bone horizontal axis of three-axle test table . This method can make the swing angle and verticality of three-axle precision angle motion table be both 1 second .

本文详细分析了三轴精密角振动台控制精度的影响因素，然后基于整周期谐波分析法提出了补偿这些干扰的自学习控制方案。

In this paper , the factors influencing the vibration control accuracy of the 3-axis precision angle-vibration tables are analysed in detail , and then the learning control systems are designed to compensate these disturbances on basis of the harmonic-analysis method .

所采用的校准分析技术，可将角位置测试台和角度分解器校准到0.1角秒的精度。

The process has beep used to calibrate an angular positioning table and angle resolver to 0 . 1 arc second .

我把角夹在台虎钳上用钢锯从中间锯成两半。

The horn was split down the center into two halves with a hacksaw , while being held in a vise .

美国国家航空和航天管理局推迟奋力号航天飞机的发射，试图找出在卡纳维拉尔角的发射台经历了11次闪电袭击之后飞机遭受哪些损害。

The American Space Agency NASA has delayed the launch of the Shuttle Endeavour while it tries to find out what damage was done by11 lightening strikes around the launch pad at Cape Canaveral .

书房的一角，一台电视斜吊在屋顶，下面是功放和音响，它们为平时紧张的工作带来了一些轻松。

The one horn of the study , inclined condole of a TV is in housetop , it is below result put symphonious noise , they were brought for nervous at ordinary times job a few relaxed .

你要取些公牛的血，抹在坛的四角和磴台的四拐角，并四围所起的边上。你这样洁净坛，坛就洁净了。

And thou shalt take of the blood thereof , and put it on the four horns of it , and on the four corners of the settle , and upon the border round about : thus shalt thou cleanse and purge it .

随着运动速度的增加，径数变化时间间隔缩短，方位角与机车台运动方向接近一致或相反的入射波将作用较长的时间。

,( 6 ) With the increase of the speed of movement , path-number change time will be shorten . The azimuth in the direction and close to unanimous or opposite of the direction of the locomotive movement will act on longer time .

该算法通过将单个接收机接收的来自不同视线角的各电视台的反射信号等效成单站回波信号，利用CDT成像算法对旋转目标成像。

Exploiting the equivalence between signals received by a receiver from multiple television stations located at various aspect angles and echoes of mono-static , the algorithm can image rotating objects based on CDT imaging algorithm .