This study was performed to analyze the performance of a solid propulsion system quickly and accurately. Systems that are currently in operation use a propellant with a complicated configuration to satisfy the performance requirements. Multi-dimensional internal ballistics analysis is essential in this case. The propellant's burning surfaces move in all directions, and the local burning velocity changes, so a 3-D analysis technique is necessary for the moving boundary. Previous research focused on improving the accuracy of the combustion configuration analysis using new methods, but it is difficult to apply them because user convenience was not considered. Therefore, the problems of the analysis methods were analyzed, and a hybrid burn-back analysis method was developed. The method's accuracy was improved by selectively using the minimum distance function (MDF) manipulation method, which has fast calculation speed, as well as a level set method for regions where the configuration of the propellant grains is complicated. The results verified that the accuracy was increased, and the calculation time was reduced.

进行这项研究是为了快速，准确地分析固体推进系统的性能。当前正在运行的系统使用结构复杂的推进剂来满足性能要求。在这种情况下，多维内部弹道分析至关重要。推进剂的燃烧表面沿所有方向移动，并且局部燃烧速度发生变化，因此对于移动边界而言，必须使用3-D分析技术。以前的研究集中在使用新方法提高燃烧构型分析的准确性上，但是由于未考虑用户方便性，因此很难应用它们。因此，分析了这些分析方法的问题，并开发了一种混合回烧分析方法。方法' 通过选择性地使用具有快速计算速度的最小距离函数（MDF）操纵方法以及用于推进剂颗粒结构复杂的区域的水平设定方法，可以提高s的精度。结果证明，提高了精度，减少了计算时间。