适应振动工况的气体连接器密封结构设计与试验

摘要

A new generation of Space Launch Vehicle (SLV) requires gas connector to keep gas supply from the SLV ignites to blast off and remain sealed with vibration.According to the mission requirements, the experiment of the original gas connector are given.Test shows that the face seal structure of O-ring could not meet the usage requirement.On the basis of analysis, we change the face seal structure to radial seal structure.The radial seal structure has passed ground vibration test and flight test.The performance and reliability of radial seal structure meet the requirements of prescriptive.For the application of this seal structure in other areas and models, lays a good foundation.%新一代航天运载器发射过程要求气体连接器在运载器点火至起飞与气体连接器分离的时段保持供气状态,并在发射过程振动条件下保持可靠密封.针对任务需求,对原连接器进行了模拟试验,试验证明O形圈端面密封结构不能满足规定的使用要求.在分析的基础上确定将端面密封结构改进为径向密封结构.新型连接器样机通过了地面振动模拟试验,产品装机参加了靶场飞行试验任务,经考核其性能和可靠性满足规定条件下的使用要求,为在其他型号上或领域内的应用打下了基础.