本文介绍两种预估固体火箭发动机内弹道性能的计算方法,重点介绍时-空交替计算方法。为了进行装药计算,采用了作者提出的二维装药通用计算程序,因此使得本文所介绍的内弹道性能预估方法具有通用性。以上计算方法已统一编制成计算机程序,并对三台不同的固体火箭发动机进行了验算,计算结果与试验结果相符合。 This article describes two methods for estimating the internal ballistic performance of a solid rocket motor, highlighting the time-space alternating calculation method. In order to carry out the charge calculation, the general calculation program of two-dimensional charge proposed by the author is adopted, thus making the method of estimating the internal ballistic performance described in this article universal. The above calculation method has been compiled into a unified computer program, and three different solid rocket engines were checked, the calculated results are consistent with the test results.