From the Angle of relative equilibrium, the paper analysis the reason of the formation of the additional pressure on the axis of fixed-point rotation of rigid body.
从相对平衡的角度分析了刚体定轴转动轴上附加压力产生的原因以及实现自由转动的条件。
2
Studies application of matric method to deal with fixed point rotation of rigid body, and infers instantaneous axis equation.
介绍了用矩阵讨论刚体定点转动瞬轴的方法，在此基础上推导出转动瞬轴方程。
3
Computation of the magnetic field, which is produced by a charged body rotating about a fixedaxis, is a classical question about magnetostatic boundary-value problem.