刚体的定轴转动及平衡分析

Analysis Summary on Balance of a Rigid Body Androtation of a Rigid Body

把刚体视作不变质点组,应用质点及质点组力学的定理及定律,就可以得到刚体运动规律.因此,刚体力学中的规律实际上是质点组力学在"质点间距离保持不变"条件下的表现形式.

The law of motion about a rigid body can be obtained by taking it as an infinite particle group and applying theorems and laws of mechanics of particles and particle group mechanics.The rules on rigid body mechanics are the manifestation of particle group mechanics under the condition of a constant distance between two particles.