变质量挠性体动力学普遍方程(Ⅰ)

The Universal Equation of Variable Mass Flexible Body Dynamics (Ⅰ)

给出了挠性体变质量问题的两种提法 ,并针对第一种提法 ,在变质量刚性质点系动力学的理论基础上 ,考虑了变形效应 。

In the present paper,the dynamic problem of flexible body with variable mass is put forward in two ways,and the dynamic equations of flexibke body is given in allusion to the first way.Geometric description of flexible body with variable mass is carried out before establishment of the universal bynamic equations of flexible body with variable mass.Conservation laws,including mass conservation law,and conservation law of linear and angular momentum,of flexible body with variable mass are obtained on the base of Jourdains variational principle.