火箭脱插强脱机构操作误区分析

The Analysis of Operation Mistakes in the Rocket Compulsory Exfoliated Mechanism

摘要: 脱插是火箭与地面系统连接的重要接口，火箭点火前通过强脱机构解锁自动断开与地面的连接，强脱机构是否正常工作直接关系到发射任务的成败。在某型火箭发射准备过程中，气动强脱机构达到以下两个标准则认为满足任务要求：一是强脱完成解锁且脱插正常脱落；二是强脱销上有小范围压痕或强脱销略微弯曲但不能剪断。本文根据气动强脱解锁原理进行受力分析，发现按照上述检验标准进行连接操作不能保证实际任务中强脱机构的有效性，并且极大增加了气动强脱失效的风险，增加了连接过程的操作复杂程度，试验时应当减小连接时刹车线的富余量。

Abstract: Compulsory exfoliated socket was an important connecting mechanism between the rocket and the surface system and it unlocked automatically before the rocket ignition. The unlocking mechanism influenced the emission directly. In the emission preparation process, there were two standers to judge where the mechanism worked well or not. Firstly, the plug exfoliated normally, and secondly, the pin in the compulsory exfoliated mechanism was pressed bending slightly and it was not broken. The unlocking mechanism was analyzed and it was found that these two standers in the process of preparation may improve the risk of failure unlocking; the complexity of operation is increased at the same time. It was suggested that the allowance of the braking line should be decreased.