“应变计法”测定两杆共轴撞击时撞击能量的计算式

The Formula of Measuring the Impact Energy of TwoColumns Colinear Impact by″Strain Meter Method″

本文根据应力波理论结合工程实际中两杆弹性碰撞的一般情况，详细导出了计算冲击能量的普遍式；指出了现行计算式（由ＩＳＯ２７８７－１９８４（Ｅ）附录Ｃ提供）的不当之处，并给出了在不同参数情况下的修正系数。可供下届标准制定时参考。

According to the theory of stress wave and combining the general condition of two columns elasticimpact in the engineering practice, this paper gets the general formula for caculating impact energy;the inaccuracy of present formula(provided by the appendix C of ISO2787-1984(E))is pointed out ,and the correction cofficient with different parameter is also given.This can be refered to in the next conference to formulate the standard.