运动学

To eliminate abnormity wear of tires in double-front-axle system of heavy truck, the kinematics and dynamics analysis method is set forth. On the base of the results for heavy double-front-axle truck load distributing and manipulate stability, tire uniformity load condition and deficiency steering characteristic condition of heavy double-front-axle truck are put forward. Steering trapezia space movement formula, double-swing-arm space movement formula and double-swing-arm movement formula in actual status of heavy double-front-axle truck are fetched. Optimization models of steering trapezia and double-swing-arm are founded and optimization arithmetics of transmission system in double-front-axle steering are compiled.

本文以消除重型汽车双前桥转向系统轮胎异常磨损等为目的，阐述了双前桥转向系统的运动学、动力学分析方法；在分析了双前桥重型汽车载荷分布和操纵稳定性的基础上，提出了双前桥重型汽车轮胎均载应该满足的条件、双前桥重型汽车具备不足转向特性应该满足的条件；推导了双前桥转向梯形空间运动关系式、双摇臂机构空间运动关系式和双前桥汽车实际工况下的运动关系式，建立了转向梯形和双摇臂机构优化设计模型，编制了双前桥转向传动系统优化算法。

Methods: 7 calf lumbar spine specimens (T13~S2) were biomechanically tested under pure moment of 10Nm loading with Tenor pedicle screw system as the fixation device. Range of motion and intradiscal pressure were measured in all unfused segments and compared among the control group, the single-segment-fixed group (L45) and the double-segment-fixed group (L3~L5), and the correlation analysis and comparison between the increments of kinematic index and intradiscal pressure were performed.

取7具小牛腰段脊柱标本(T13~S2)，以Tenor椎弓根螺钉系统作为固定器械，在10Nm纯力矩加载下进行生物力学测定，测定各活动节段的运动范围和椎间盘内压，比较完整对照组、L45单间隙固定组和L3~L5双间隙固定组间上述指标的变化，并对运动学指标和椎间盘内压增量进行相关分析和比较。

Braking mechanism is followed, in this part, the course of braking and the braking force are our subject investigated. At the same time, we also discuss some familiar problems. Finally, there are only abb joining mechanism and unreel and tension control mechanism. Because there are not complica

论文的目的在于探索重型宽幅织机引纬机构与梭箱部分的设计方案，在机、电、液、气相结合的情况下，从理论上分析引纬机构与梭箱的结构以及运动学和动力学－方面的特征，希望为同类机构的设计和研究提供理论依据。

A linear theory that includes rotations not considered by classical elasticity is the micropolar theory, which deals with materials with microstructure.

线性理论是一个微极理论，涵盖了旋转运动学相关内容，不能用经典弹性理论来分析，而主要用于解决微结构材料的问题。

Field of ironing with contoured die of equal strain rate has been first put forward in this paper.

首次拟定了等应变模变薄拉延时的运动学容许速度场。

By the use of the concept of "pseudo convected velocity" proposed by theauthor, mechanical influence coefficient is obtained with the physical meaning ofdepending only on configuration of mechanism explicitly revealed and therelationship between influence coefficient and Jacobian matrix of robots is analyzed.

采用作者提出的&拟牵连速度&的概念，推导出了机构的影响系数，明确地给出了影响系数只依赖于机构位形这一结论的运动学含义，分析了机构影响系数与机器人雅克比矩阵的关系。

2The papre decompounds the complex motion of the robot into two types of basic motions, that is self-discipline bionic worming and pose adjustment. Thus the arithmetics of the pose and orientation of the robot are unified, which provides advantage for mix control mode and simple kinematics analyse.

将拱泥机器人的复杂运动分解为仿生自律蠕动和姿态调整两类基本运动，统一了机器人自身姿态合成与定位算法，为混合控制模式的实现和机器人运动学分析及仿真模型的建立提供了便利条件。

The Pluton was emplaced in a kinematics and dynamics setting of a flower uplifting of the complex.

整个岩体定位于秦岭杂岩呈不对称扇形体向西侧向运移、抬升的构造运动学、动力学中。

In his Essai sur la Philosophic des Sciences, he was the first to use the term "cinematique," from the Greek word for motion, 'to describe the study of motion without regard to forces,and suggested that"this science ought to include all that can be said with respect to motion in its different kinds, independently of the forces by which it is produced," His term was later anglicized to kinematics and germanized to kinematik.

他essai sur la philosophic李惠庭，他是第一个使用& cinematique ，&从希腊字议案'来形容研究议案方面的力量，并认为&这一科学应包括所有可以表示对议案的三种不同，独立的力量，它制作的，&他后来anglicized运动学和germanized至kinematik 。

Through the analysis, modeling of manipulator and lucubrating the structure of the manipulator, a control strategy based on hybrid fuzzy logic proportional plus conventional integral-derivative control method, which can control nonlinear uncertain and high-power manipulator is also presented in this thesis.

通过对机械臂进行动力学与运动学建模、分析以及对机械臂结构的深入研究，提出了基于 Fuzzy P+ID的控制策略对大功率、具有非线性和不确定性机械臂的控制方法。

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％。