捕获轨迹试验中外挂物轨迹计算的几个问题

在捕获轨迹试验中,对外挂物轨迹的计算技巧问题进行了一些探索。根据外挂物在两个相邻位置的测量点间气动系数变化的限度,预计出计算的位移量,指出了选择合适位移量的原则,提出了在某些试验条件下,重力的作用可以另外计算,这既简便又精确,在求解常微分方程组时,要注意紧凑,有些中间参数可将其略去,这样可以缩短计算时间,提高试验效率。

SOME PROBLEMS ON THE STORE TRAJECTORY CALCULATION WITHIN CAPTIVE TRAJECTORY TESTING

This paper discusses the calculation technics on a storetrajectory within captive trajectory testing.According to the changinglimits of the aerodynamic coeifficient of store measured at two closepoints,the amount of displacement calculated is estimated,and theprinciple to choose the adapted amount of displacement is indicated.Under certain testing conditions the force of gravity can be calculatedseperately,which makes this test both simple and accurate.We must payclose attention to certain intermediate parameters when we solve the dif-ferential equations,for it can be breviated and therefore save calculationtime and improve the efficiency of the test.