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相关语句
  定理
    The Application of the Theorem of Angular Momentum to the Test
    动量矩定理在转矩测试中的应用
短句来源
    Kinetic Model Transformation Theorem in the Change Kinematics Model and Its Application in the Multifreedom Joint Parallel Mechanism
    变运动学模型下动力学模型变换定理及其在多自由度关节并联机构中的应用
短句来源
    Caley Theorem and Its Application
    加莱定理及其应用
短句来源
    Approximate Kinematic Synthesis of Planar Four Bar Linkages for Path Generation with Timing Using Generalized Inverse and Roberts Chebyshev Theorem
    用广义逆矩阵及Roberts-Chebyshev定理进行再现计时轨迹平面铰链四杆机构的近似运动综合
短句来源
    On Some Problems in Application of Three Link Theorem
    关于三心定理应用中若干问题的探讨
短句来源
更多       
  定理的
    Applications of Bobillier Theorem
    卜别利尔定理的应用
短句来源
    Determination of Velocity and Acceleration in Mechanism with Analysis of Instantaneous Center and Velocity Projection Theorem
    用瞬心和速度投影定理的解析法确定机构速度和加速度
短句来源
    A New Proof for Three center Theorem and the Application of Its Middle Result
    三心定理的一种新证明及其中间结果的应用
短句来源
    THREE PRODUCTION OF THE COUPLER CURVE AND ITS CAD (APPLICATION OF THEOREM OF ROBERTS AND CAYLEY)
    罗伯茨与加莱定理的合并应用──连杆曲线三重产生法及其CAD
短句来源
    On the Calculation of Fundamental Theorem of Axonometric Projection
    轴测投影基本定理的计算理论和方法
短句来源
更多       
  原理
    Discussion on Manipulation of Dimension Chain Theorem in Repair Device
    浅述在设备的修配法维修中尺寸链原理的运用
短句来源
    In this paper,to improve the course teaching of mechanism theorem,a visual analysis and simulation program of planar linkage in three dimensional space has built up.
    机构分析与仿真是机械原理教学的重要内容,其中连杆机构的运动分析是难点与重点。
短句来源
    According to the theorem of complex harmonic drive, this paper extendsits meaning and presents a new system of closed power current (that is asystem of drive ratio i=∞).
    本文根据复式谐波传动的原理,加以引伸而提出了一种新型的较适用的封闭功率流系统(即传动比i=∞的系统)。
短句来源
    In this paper, the plan analytic geometry method is demonstrated to design the four-dar mechanism. The linkage is synthesized with plan motion theorem while three positions of connecting bar and two positions of revolutional center are specified.
    本文介绍在四杆机构中,当已知连杆的三个位置以及两铰链中心时,可根据连杆平面运动的原理,用平面解析几何的理论来设计四杆机构.
短句来源
    It is based on the theorem of exchange energies which can be considered as a multiple application of the reciprocity principle.
    该方法称为能量交换原理,它是在互易原理的基础上建立起来的。
短句来源
更多       
  定理
    The Application of the Theorem of Angular Momentum to the Test
    动量矩定理在转矩测试中的应用
短句来源
    Kinetic Model Transformation Theorem in the Change Kinematics Model and Its Application in the Multifreedom Joint Parallel Mechanism
    变运动学模型下动力学模型变换定理及其在多自由度关节并联机构中的应用
短句来源
    Caley Theorem and Its Application
    加莱定理及其应用
短句来源
    Approximate Kinematic Synthesis of Planar Four Bar Linkages for Path Generation with Timing Using Generalized Inverse and Roberts Chebyshev Theorem
    用广义逆矩阵及Roberts-Chebyshev定理进行再现计时轨迹平面铰链四杆机构的近似运动综合
短句来源
    On Some Problems in Application of Three Link Theorem
    关于三心定理应用中若干问题的探讨
短句来源
更多       

 

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  theorem
In the case of 3-dimensional commutative algebras a new proof of a recent theorem of Katsylo and Mikhailov about the 28 bitangents to the associated plane quartic is given.
      
If the additive group of complex numbers acts algebraically on a normal affine variety, then the associated ring of invariants need not be finitely generated, but is an ideal transform of some normal affine algebra (Theorem 1).
      
If the variety is a complex affine space and the ring of invariants is isomorphic to a polynomial ring, then the action is conjugate to a translation (Theorem 3).
      
On the other hand, there is a locally trivialGa-action on a normal affine variety with nonfinitely generated ring of invariants (Theorem 2).
      
As an application of the results we prove a generalization of Chevalley's restriction theorem for the classical Lie algebras.
      
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The relation between magnetic axial force and radial force in staticmagnetic system with symmetrical axis is tried to deduce in this paper. Theunstability of static magnetic system as shown by Earnshaw's Theorem maybe quantitatively explained then, and three possible states of equilibriumof static magnetic system with symmetrical axis are also discussd.

本文推导了轴对称静磁体系中磁轴向力和径向力的关系式从而对静磁系统的不稳定性(Earnshaw定理)做了定量地描述,同时讨论了轮对称静磁悬浮可能出现的三种平衡态。

Structure designers are concerned about whether the statically determinate or indeterminate structure is lighter.Therefore,three theorems for weight characteristics of statically determinate and indeterminate structures are presented and proved,and the essentials of the problem are explained in this paper.Due to the limited space on printed pages only one example,i.e.the optimization of a 10-bar plane truss is given.It is a rather difficult task and usually requires more than 10 iterations;even so,its...

Structure designers are concerned about whether the statically determinate or indeterminate structure is lighter.Therefore,three theorems for weight characteristics of statically determinate and indeterminate structures are presented and proved,and the essentials of the problem are explained in this paper.Due to the limited space on printed pages only one example,i.e.the optimization of a 10-bar plane truss is given.It is a rather difficult task and usually requires more than 10 iterations;even so,its solution is not good enough.But it is calculated only by two iterations in this paper,and its solution is quite well.In general,for other examples suitable to the above mentioned theorems,it is possible to obtain a satisfactory solution only through one or two iterations.

究竟是静定结构轻还是静不定结构轻,一直是结构设计人员所关心的问题。本文提出和证明了静定、静不定结构重量特性的三个定理,阐明了这个问题的本质。限于篇幅,本文只附一个算例——10杆平面桁架结构优化问题,这是国际上一个难度很高的算例,一般需迭代10次以上,且得到的解仍不够好,本文只迭代2次,即可得很好解。对于其他适用本定理解的算例,通常都只需迭代1~2次即可得到很好解。

According to the theorem of complex harmonic drive, this paper extendsits meaning and presents a new system of closed power current (that is asystem of drive ratio i=∞). Moreover, this paper researches and analysesthe characteristics and advantages of the system used as test-bed in assemblyand conventional tests, and explains with practical examples. To comprehendand apply it conveniently, at first, this paper also in troduces the conceptof closed power and its applications in gear drive test-bed.

本文根据复式谐波传动的原理,加以引伸而提出了一种新型的较适用的封闭功率流系统(即传动比i=∞的系统)。并对这一系统用作谐波齿轮传动装置的总成和例行试验台应具有的性能指标,以及其优越性等进行了分析和研究,且通过实例予以说明。为了便于理解和应用,文中还首先介绍了封闭功率的概念及其在齿轮传动试验中的应用。

 
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