孙毅, 陈立群. 运动学中点的合成运动分析方法. 力学与实践, 2023, 45(4): 881-885. doi: 10.6052/1000-0879-22-315
引用本文: 孙毅, 陈立群. 运动学中点的合成运动分析方法. 力学与实践, 2023, 45(4): 881-885. doi: 10.6052/1000-0879-22-315
Sun Yi, Chen Liqun. Analytical method of the motion composition for moving points. Mechanics in Engineering, 2023, 45(4): 881-885. doi: 10.6052/1000-0879-22-315
Citation: Sun Yi, Chen Liqun. Analytical method of the motion composition for moving points. Mechanics in Engineering, 2023, 45(4): 881-885. doi: 10.6052/1000-0879-22-315

运动学中点的合成运动分析方法

ANALYTICAL METHOD OF THE MOTION COMPOSITION FOR MOVING POINTS

  • 摘要: 本文就运动学中点的合成运动分析方法进行了梳理与研讨。采用广义坐标方法推导了动参考系作一般运动下点的速度与加速度合成公式,并与教材中的表达式进行了对比。此外还采用本文提出的基于牵连点运动的分析方法,对点的合成运动进行了详细的研究,并重点讨论了两种分析方法的特点与应用。

     

    Abstract: In the present paper, the analytical methods of the motion composition for moving points are clarified and discussed. The velocity and the acceleration composition formulas are derived for an arbitrarily moving reference frame by introducing the generalized coordinates. The results are compared with the common expressions in textbooks. Besides, the present authors propose a method to analyze the motion composition of moving points with the focus on the motion analysis of the entrainment point. Discussions are made on the application to a planar entrainment motion and the special features of these two kind of analytical methods.

     

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