Taking the plane movement of ellipsograph ruler and crank connecting rod as example,we discuss the relationship between velocity and acceleration of each point on rigid body by using the Maple to establish the corresponding movement model.It is shown that Maple is a high performance and visualization computer software.It not only makes the complex and difficult to explain problem in teaching simple,but also well stimulates the students＇ interest in learning,which well improve the effect of the course teaching of theoretical mechanics.%以椭圆规尺和曲柄连杆的平面运动为例,通过运用Maple建立相应的运动模型,讨论了刚体上各点速度和加速度之间的关系.研究结果表明：Maple是一种高性能的可视化计算机软件,它可使教学中复杂和难以讲解的问题简单化,能很好地激发学生的学习兴趣,从而提高理论力学的课堂教学效果.
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