查询词典 kinematical

The kinematical admissible velocity fields is got through theory analysis, in addition, the calculation formulas of forming load and forming power of helical gears and spur gears are deduced using upper bound method.

通过理论分析，建立了动可容速度场，并且应用上限法推导了直齿轮和斜齿轮成形载荷、成形功率的计算公式，计算所得上限力接近试验测得载荷，并分析了螺旋角对斜齿轮冷锻载荷的影响。

Results show that the equivalent mass in normal direction depends on the modes of collision. In the case of reversed sliding and sticking, the coefficient of restitution varies as a result of the instantaneously changes of the equivalent mass during impacting process. The coefficient of restitution depends not only on the contact force, but also on the kinematical and dynamic parameters of the two rigid bodies. Moreover, a formula is proposed to calculate the coefficient of restitution.

指出法向等效质量依赖于碰撞状态，在反向滑动和停止滑动这两状态下的法向等效质量是变化的，因此导致其恢复系数是变化的，这样，恢复系数不仅与接触力有关，而且还与两刚体的运动和动力参数有关，同时给出各种碰撞状态下的恢复系数计算式。

The variable geometry truss mechanisms have been studied extensively and systematically by this project. The research plan has been completed all sidedly, and expected results have been obtained. Three new kinds of combination decahedrons and a new class of variable geometry truss mechanism, which is composed of an octahedron and three tetrahedrons connected in parallel form, are proposed. The position analyses for decahedrons, dodecahedrons, triple-octahedrons, combinations decahedron and a new type of structure of variable geometry truss mechanisms are presented by introducing additional extra linear displacement sensors and using resultant elimination and homotopy continuation algorithms. The method of kinematical analysis of variable geometry truss mechanisms is established.

课题组对变几何桁架机构进行了深入的研究，全面地完成了研究计划，取得了预期的成果；提出了三种新的十面体组合机构以及由一个八面体和三个四面体组成的新型变几何桁架机构的结构形式；应用结式消元、附加传感器和同伦方法等提出了十面体、十二面体、三重八面体、组合十面体和新型变几何桁架机构的位置分析方法；建立了变几何桁架机构运动分析的一般方法；建立了简洁的凯恩和拉格伦日动力学的模型；应用有限元和子结构方法，提出了变几何柞架机构弹性动力学模型，导出了逆动力学方程的显式形式；设计和研制了一台可折叠的八面体变几何杵架机构装置等。

In this thesis, with the aid of the method of reconstructive direction cosine matrices of the analysis and synthesis of spatial mechanism, the more overall and systematic theoretical research is done about trident-bar universal joint and drawn some useful conclusions about kinematics analysis, dynamics analysis, kinematical precision analysis, vibration analysis, simulation and experimental results analysis, mechanism type selection analysis based method of fuzzy distinguishable pattern, integrated designing prototype system.

本文以改造的方向余弦矩阵为数学工具，以三叉式万向节为研究对象。进行了机构有关的解析求解、仿真和试验结果分析，基于模式识别技术的机构选型及机构的集成设计原型系统，得出了以下结论：(1)采用改造的方向余弦方法适用于空间机构的运动求解及动力求解。它的特点是解析明了，以矩阵方式体现，适合计算机求解。并以万向节为实例进行了万向节的详细的运动分析，建立了求解的各个变换矩阵，得出了机构的详细的运动关系。

The purpose of this study is to investigate the variability of 3 forms PA glide techniques, in a simulated setting, through kinematical, kinetic and electromyographic analyses in subjects who are novice to the techniques of manual therapy and those who are experienced.

所以，本篇研究主要想针对没有经验及有临床经验的治疗师，探讨大拇指在不同柔软度及不同的治疗手法的动力学及肌电学的影响。

The purpose of this study was to compare and analysis the changes of walking on the slippery floor with three different high heels ( 3cm, 5.5cm, 8 cm) in kinematical, dynamics and lower limbs electromyographic parameters.

中文摘要目的：探讨女性穿著不同鞋跟高度（3公分、5.5公分、8公分）高跟鞋行走於光滑地面之运动学、动力学与下肢肌电图参数的变化情形与差异性。

A three dimensional, kinematical, enough resolution and geocentric coordinate frame will be established in China.

在重力基准方面，在国家2000重力基准网和国家2000大地水准面的基础上，有步骤的按省或地区推算具有厘米级精度，10km级栅格分辨率的似大地水准面。

This paper makes an analysis of the kinematical rules and technical characteristics of movement-round-off spring back handspring and bent leg back flip with 2 twists in Yang Wei s vaulting horse,in order to provide the theoretical basis and technical parameter for its further development in China.

通过运动学分析揭示了我国优秀体操运动员杨威完成的跳马踺子后手翻屈体后空翻2周的运动学规律与技术特点，为我国运动员发展此类动作提供了理论依据和技术参数。

So far, the soils limit analysis result in engineering practice is often obtained by taking experimental or semi-experimental measures, and it is very difficult to estimate the departure with the actual conditions. But by using KEM, the precision of soils limit analysis can be enhanced.

目前对此类实际工程问题大多是作大量的简化得到经验、半经验的结果，与实际情况之间的计算误差难以估计，而KEM（运动单元法，Kinematical ElementsMethod）则可以从根本上提高分析结果的精度。

Defined the nodal velocity on the moving interface of theALE mesh as a product of a scalar and a shape vector, the kinematical boundary con-ditions on the free surface is modified to increase the freedom of the movements of thegrid on free interface.

将ALE网格运动界面节点的速度定义为一个标量和形状向量的乘积，用它修正自由液面网格速度与流场速度关系式，以增加自由面网格节点运动的自由度。

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％。