研究了长期贮存的两型固体发动机的工作安全性。将两型固体发动机在CT探伤中发现的装药界面脱粘情况进行了统计分类,将其归结为“非贯通性”和“贯通性”两类脱粘情况。对两类脱粘情况分别开展了工作状态下的装药结构有限元计算及脱粘缝隙流场仿真,并将计算结果与发动机地面试验情况进行了对比。认为“非贯通性”的界面脱粘基本不会影响发动机工作安全性,而存在“贯通性”的界面脱粘的发动机则危险性较大。 The long-term storage of two solid-type engine work safety. The two types of solid engine in the CT flaw detection found in the drug interface debonding were statistically classified as “non-through” and “through” two types of debonding situation. The two types of debonding conditions were carried out under the working condition of the charge structure of the finite element calculation and the gap flow field simulation, and the calculation results and the engine ground conditions were compared. It is considered that the “non-through” interface debonding basically does not affect the safety of the engine work, but there is “penetration ” interface debonding engine is more dangerous.