变质量系统机械能损失一般公式的导出及应用

DERIVATION AND APPLICATIONS OF THE GENERAL EXPRESSION OF THE ENERGY-LOSS OF VARIABLE MASS SYSTEM

在导出变质量系统动能定理的基础上给出了机械能损失的一般表达式,为讨论该类系统在运动过程中的能量转换等问题提供了一种较为简捷的方法.

A general expression for the mechanical energy-loss is derivedbased on the discussion of the work-energy theorem of the variable mass sy-tem.And so a simple method of analysing the transformation of the energy inthe physical processes of the variable mass system is given.