为了探索某燃气解脫式闭锁机构在强制解脱过程中力学特性,文中采用了实验与仿真相结合的研究方法。首先,设计实验装置,把闭锁机构从发射系统中分离,由实验测试获得实验装置冲击力和闭锁钩接触力曲线。其次,以动力学理论为基础,建立实验装配条件下装置的有限元分析模型,仿真分析闭锁钩和闭锁环、转接套圈等零部件的受力、变形及其相互动态干涉情况,得到闭锁机构在强制解脱工况下闭锁力大小。

In order to explore the mechanical properties of a certain gas-releasing locking mechanism under mandatory relief condition, this paper used the method of combing experiment and simulation. First, by designing an experimental device, the locking mechanism was separated from the launching system, then the curve graphs of the experimental device's impact force and locking hook's contact force were obtained through experimental test, which used to confirm the reasonable of the finite element result. Second, based on kinetic theory, the finite element model of the experimental installation was established under the experimental conditions. By calculation, the stress, deformation and mutual dynamic response of locking hook, locking ring and transfer ring were revealed. The value of the locking force of the locking mechanism was calculated under mandatory relief condition.