运动学

Originally studying will carry on comparatively overall analysis to javelin throw technology from the kinematics respect, Have proposed influencing the trends to surmount the relevant index of the apparatus , and has carried on the ration or qualitative analysis to the main factor and interreaction among them .

本研究从运动学方面对掷标枪交叉步、最后用力阶段技术进行了较为全面的分析，提出了影响超越器械的相关指标，并对其中的主要因素及其相互关系进行了定量或定性分析。

Building a joint coordinate system is very important in the kinematic and dynamic analysis of human movement. At present, most of the methods on definiting human JCS are for the clinical application, so they require professional anatomical knowledge and have poor operability.

在对人体运动进行运动学或者动力学分析的时候，通常需要对各关节建立局部坐标系，而目前大部分人体关节坐标系定义方法都主要针对临床应用，需要具备专业的解剖学知识且可操作性差。

Based on the selection rules on the rotational joint fit comer, spherical joint fit comer and parallel bar interference, which are application-based, the relationships between those restrictions and mechanism parameters are deduced in the mathematic functions, especially for the compound spherical joint.

文章摘要：以6-RSS型并联机构为研究对象，建立解析形式的反向运动学方程，给出考虑驱动副转角范围、球副转角范围、连杆干涉等约束条件时的反解选取准则，推导出每种约束表达与机构参数间关系，特别是复合球副独特的附加约束表达。

Variational equations of motion of each flexible link are derived under Jourdain variational principle, and then the mixed algebraic-differential equations of flexible multibody systems are obtained with the kinematic constraint conditions.

用Jourdain速度变分原理建立各机械臂的动力学变分方程，在此基础上根据各物体之间的运动学约束关系，建立柔性多体系统的微分代数混合动力学方程。

Analysis of the structure of the robot, in this based on the kinematics equations.

分析了机器人的结构，在此基础上建立了运动学方程。

Based on this study, the kinematics and dynamics of the palm linkage system is studied.

在此基础上，研究了仿人灵巧手掌连杆系统的运动学和动力学。

And the mathematical model of robot kinematics is established.

建立了机器人小车的运动学数学模型。

In chapter 3, platform's kinematics and dynamics'analysis are given.

在第三章，进行了平台的运动学及动力学分析。

The program is intended for simulation of kinematics and dynamics of planar and spatial mechanical systems.

该计划是为模拟的运动学和动力学的平面和空间机械系统。

At last the validity and accuracy of this new method was confirmed by the kinematics simulation of system.

最后通过某并联机构的运动学仿真验证了该轨迹规划方法的可靠性及精确性。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。