对运动学条件没有任何限制的刚体的自由运动。在刚体作自由运动时，刚体内没有任何固定于空间的点，而且任何三个不共线的点的轨迹不会相同。飞机、导弹、舰船等都可作这种运动。
本文用比拟法推得了刚体一般运动的螺旋轴方程。
The screw axis equation of the general motion of a rigid body has been derived by means of a comparison method.
这个方法就是将刚体一般运动与空间一般力系进行类比，而一般力系的中心轴方程是巳知的。
This method is to compare the general motion of a rigid body with the force systems in space and the central axis equation of the force systems in space has been derived beforehand.
用陀螺理论中刚体一般运动的方程对汽车、工程机械、振动磨机等系统中传动系的双万向节进行了运动分析。
The general motion equation of rigid body in gyroscopic theory is used to analyze the motion of double universal joint in the transmission system of engineering mechanism vibration grinder.
应用推荐