One time derivate of ■, toθ in natural coordinate system;
自然坐标系中■,对θ的一阶导数
The article solves the confused problem of natural coordinate system,pointing out that arc coordinates are meaningless;s is distance instead of arc coordinate;all particles move around the curvature centre within the minimal time dt.
解决了关于自然坐标系的混乱状况。
The selection and application of tanggential forward in a natural coordinate system are difficult problems in mechanics.
力学中自然坐标系切向正向的选取在具体问题的应用中是一个较困难和麻烦的综合问题 。
In this paper, the establishment of the natural coordinates and the constraint equations of space mechanism are presented, which includes the constraint equations of rigid body, movement couple and space mechanism.
介绍了自然坐标系及空间机构约束方程的建立,其中包括建立刚体的约束方程,运动副的约束方程以及空间机构的约束方程,最后给出了轻型小客车转向系运动学分析的应用实例。
In this paper,the establishment of the natural coordinates and the restrained equations of space mechanism are presented,which includes the restrained equations of rigid body,movement couple and space mechanism.
首先介绍了自然坐标系及空间机构约束方程的建立 ,其中包括建立刚体的约束方程、运动副的约束方程以及空间机构的约束方程 ,文中最后给出了一轿车 Macpherson(麦弗逊 )悬架运动学分析的应用实
With introduction of the natural coordinates in the stress space a consistent algorithm for the non smooth multi .
此外，通过引入应力空间下的自然坐标体系，对作为非光滑多重屈服面的Ａｌｏｎｓｏ本构模型推导了一个一致性算法。
Dynamic equations of multibody systems in natural coordinates are first established by means of the nullspace of constraint Jacobian matrix.
用自然坐标描述多体系统,经过约束方程的雅可比矩阵的零空间建立了自然坐标形式的多体系统动力学方程,并进而表示成广义动量的形式,给出了其数值分析的过程,最后举了一个算例。
Using natural coordinate, algorithm of ISEM for elements of arbitrary shape has been performed.
本文引用自然坐标，实施了任意形状单元的界面元算法，并给出了算例，成果表明，本文的算法可行，其精度也是令人满意的。
Equivalent and Difference of Natural Coordinate System with Right Angle Coordinate System When Constraining Anti-force Comes into Being;
含约束反力情况下自然坐标系与直角坐标系的等效性及差异性
About Reseach of Solve a Problem on Applied Dynamics Equation in Natural Coordinates;
关于自然坐标系中应用动力学方程解题问题的研究
Equivalence between Local Natural Coordinates and Oblique Cartesian Coordinates
局部自然坐标与斜交笛卡儿坐标的对等性
Setting Work Coordinate System Using Three-point Arc Automatically
三点圆法实现工件坐标系的自动设定
The Study of Dynamic Simulation of Macpherson Suspension Based on the Natural Coordinate Method;
麦弗逊悬架动力学仿真的自然坐标法研究
The Development of Simulated Program of Independent Suspension Using the Natural Coordinates;
独立悬架的自然坐标法通用仿真程序的开发
Mathematical model for spontaneous combustion in goaf in the moving coordinates
基于移动坐标的采空区自然发火模型研究
Double Line Method of Base Point Self Calibration in Laser Tracking Coordinate Measuring System
激光跟踪坐标测量系统的双线法基点自标定
The choice of orientation of the(x, y, z)coordinate system is, of course, quite arbitrary.
当然，坐标系（x，y，z）轴向的选择是任意的。
Beijing geodetic coordinate system 1954
１９５４年北京坐标系
Study on the Establishment of Free-coordinate System of Industrial Measurement System
工业测量系统自由坐标系建立方法研究
Automatic Recognition for the Position and Orientation of Parts in Intelligent CMMs
智能三坐标测量机中零件位置自动识别系统
Number of Generalized Coordinates and Degree of Freedom in Classical Mechanics;
经典力学体系中广义坐标和自由度的数目
Research and Design for Automatization of Robotic Flexible Coordinate Measurement System
机器人柔性坐标测量系统自动化研究与设计
First Integral of a Class of Autonomous Systems in Polar Coordinates
一类极坐标形式的自治系统的首次积分(英文)
The Autopilot Design for Axis-symmetrical Missile Based on Maneuvering Coordinates
基于机动坐标系的轴对称导弹自动驾驶仪设计
Coordinate Auto-Converting System for Leading Data of optical measuring equipment
光测设备引导数据坐标自动转换系统设计
This coordinate system is called the triad at the point.
这个坐标系叫做该点的三面形坐标系。