查询词典 kinematics

Because it is not practical to use numerical ephemerides with a large volume of data to describe the kinematics of component stars in a star catalogue, a kinematics model, as simple and practical as possible, is needed for the hierarchical triple star systems.

因为在实用星表参考架中不宜采用数据量较大的数值历表来描述子星的运动，所以有必要针对等级三星系统建立尽可能简单实用的运动学模型。

The following is the solution of kinematics and inverse kinematics of robot, including setting the kinematic equation by unchaining the closed chains.

在此基础上，建立机器人的运动学和逆运动学方程，其中运动学部分将该机器人的混合链结构化解成为等效的开链结构，建立开链的运动学关系。

The dissertation systematically analyses RV-M1 robot which is used in this study, thoroughly dissects the hardware and software of RV-M1 robot's controller, upbuilds RV-M1 robot's model and coordinate system, develops the robot's forward kinematics formulation, solves the robot's kinematics negative problem, develops RV-M1 robot's dynamic formulation in Lagrange-Euler form, does linearization about robot's dynamics model, and gets this robot's sign solution In order to solve practical problem in the process of robot automatic polishing, this dissertation makes some beneficial researches and trials.

本文比较系统地分析了本论文研究中采用的RV—M1型机器人，较为详细地剖析了RV—M1型机器人系统的控制器硬件、软件，建立了RV—M1型机器人模型及其坐标系，推导出了该机器人的正向运动学方程，并对机器人的运动学逆问题进行了求解；推导了RV—M1型机器人的Lagrange—Euler形式的动力学方程，对机器人的动力学模型做了线性化，给出了该机器人的符号解。

Research on cone/bit speed ratio simulation model of tri-cone bit s;2. In this paper, the kinematics simulation model of tri-cone bit s was established according to the roller cone bit geometry and kinematics.

根据钻头几何学和运动学建立起了随钻运动的三牙轮钻头的计算机运动学仿真模型，该仿真模型既表示出了钻头上各牙齿的形状、大小和在钻头上的分布情况，又可真实反映钻头钻进过程中各牙齿的瞬时位置和相互关系。

The method of kinematics analysis for four bar mechanism is used to the kinematics analysis of the roller chain drive,and the simulation of the driving process of the chain drive is carried out by an Windows program Curve of the instantaneous ratio is performed The computer simulation of the kinetic property of the roller chain drive is implemente

铰四杆机构的运动分析方法可用于链传动运动特性的精确分析，采用WINDOWS编程对链传动的运动过程进行了模拟，并对链传动瞬时传动比作出了曲线，实现了链传动运动特性的计算机模拟分析。

Kinematics simulation of four-foot RobotBefore building the model of four-foot Robot kinematics simulation, the gaits of many kinds of movement,such as walk,turn and so on,should be well designed first.

在此基础上，运用机构运动的运动学原理和逆运动学原理，确定了四足机器人足端、躯体、膝关节等的运动轨迹，建立了四足机器人各种基本运动如行走、转弯等的运动学模型。

The main work of this paper: Firstly, Basing on the summarization and analysis of the walking mechanism, Parallel drive five-bar mechanism is applied for walking mechanism. And then the characteristic of the trail and positive kinematics as well as reverse kinematics are discussed. Secondly, the model of walking mechanism is established according to Parallel drive five-bar mechanism, and then a figure planning is designed for the foot-end trail. The characteristics of the parallel drive are emphasized to research in this paragraph by the method of insert value. At last, the simulation is performed in the ADAMS to compare the real result to the theoretical value. Thirdly, a sealed structure of a Quadruped Walking Robot is designed and established. The whole control system, including motor, sensor and control circuit, is sealed in the robot. Walking is derived in the way of the shaft driving and the dynamic torque sensor is used to the surrounding conditions of the robot's foot-end to be the foundation of the robot's control. At last, the applying principle of the dynamic torque sensor is researched in detail basing on the traditional sensor of the walking robot. Moreover, the principle is divided into several sorts to discuss. Finally, simulation and verification of the monitor principle are come through in the Mechanism of the Pro/Engineer.

论文的主要工作有：在对传统步行机构总结分析的基础上，提出将平面并联五杆机构应用于四足步行机器人的腿部结构，并对其轨迹特性、正运动学、逆运动学特性做了详细计算分析；依据平面并联五杆机构的模型，建立机器人步行机构的实体模型，对其足端的轨迹做了图谱规划，并利用插值法对并联驱动端的特性曲线作了研究，并在ADAMS中进行仿真，将结果与理论值相比较；然后设计了一套四足步行机器人密封装配结构设计方案，建立四足步行机器人单足结构、驱动以及传感器监测的三维实体模型，将机器人的整个控制系统，密封装配在步行机器人的机体中，通过轴传动来驱动步行机构实现步行，采用动态扭矩传感器监测步行机构的驱动关节受到的扭矩变化，从而获得四足步行机器人足端的周围情况，为步行机器人的控制方案奠定了基础；论文的最后在分析步行机器人传统控制传感器的基础上，详细分析了动态扭矩传感器的监测原理，并分几种情况分别分析了其监测原理，并在Pro/E的Mechanism模块中实现了监测原理的仿真与验证，最后给出了传感器监测信息与系统判断之间的关系。

The work of this paper includes:(1) By analyzing the kinematics of the three-wheeled omni-mobile robot, the mathmatical kinematics model was constructed.

本论文的工作内容主要如下：（1）对三轮全向移动机器人运动学进行了分析，并建立了运动学数学模型。

At the evaluation parameters part, the article point out 20 suspension parameters to evaluate the vehicle independent suspension kinematics and elasticity kinematics characteristics, and give the exact definitions of these 20 parameters, at the same time the article endeavors to discuss the changeable characteristics of these parameters and their influences to the vehicle handling performance.

分别指出了反映了车轮定位、顺从转向、车身纵倾和侧倾、车轮回正性、转向轻便性和轮胎磨损等独立悬架运动学和弹性运动学特性的20个悬架参数指标，给出了它们的定义，并尽力阐述了这些参数对汽车操纵稳定性等重要性能的影响及其合理的变化趋势或范围。

Based on the inverse kinematics, forward kinematics of six-bar parallel mechanism in beamline is obtained by trust region method for nonlinear optimization. The corresponding program with MATLAB language is also designed.

以六杆并联机构的逆运动学为基础，采用信赖域法对非线性超越方程组进行优化，编制相应的MATLAB程序，求解机构的正运动学，得到了动平台中心的运动轨迹和基本规律。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。