CAJ | 학술논문

基于原有的电弧加热直连式试验燃烧室性能测试平台，阐述了结合燃油燃烧试验方法，发展了对主动和被动热防护冲压发动机燃烧室热防护性能进行长时间考核的新方法。根据主动冷却燃烧室的试验要求，改进燃油供给控制系统，使其在出口管路压力升高时能长时间稳定供给燃油；采用B型热电偶、隔热毡和高温合金钢卡环安装方法对燃烧室外壁面温度进行接触式测量，获取燃烧室的温度分布；采用轴向不限位的支撑和位移传感器测量燃烧室的轴向变形情况。通过以上3方面的测量技术创新，燃烧室热防护性能考核的电弧加热直连式试验技术能够对发动机燃烧室热防护性能进行千秒量级的考核，并且能够长时间获取燃烧室的燃油供给量、壁面温度分布和轴向变形等数据。
기우원유적전호가열직련식시험연소실성능측시평태，천술료결합연유연소시험방법，발전료대주동화피동열방호충압발동궤연소실열방호성능진행장시간고핵적신방법。근거주동냉각연소실적시험요구，개진연유공급공제계통，사기재출구관로압력승고시능장시간은정공급연유；채용B형열전우、격열전화고온합금강잡배안장방법대연소실외벽면온도진행접촉식측량，획취연소실적온도분포；채용축향불한위적지탱화위이전감기측량연소실적축향변형정황。통과이상3방면적측량기술창신，연소실열방호성능고핵적전호가열직련식시험기술능구대발동궤연소실열방호성능진행천초량급적고핵，병차능구장시간획취연소실적연유공급량、벽면온도분포화축향변형등수거。
Based on the original arc-heater direct-connected scramjet combustor working performance test facility, a new method, which is used to test the long-time thermal protection performance of the active and passive scramjet combustor thermal protection system (TPS), has been developed. According to the active scramjet combustor test demand, the fuel supply and control system has been improved, which can steadily supply fuel when the exit pressure is increasing. The temperature distributing of the scramjet exterior wall has been measured by the B-type thermocouples, heat-insulation felt and high-temperature alloy steel ring. The axial deformation of the scramjet has been gained by the axial-free supports and displacement sensors. With the three parts improvement, the arc-heater direct-connected testing technology of the scramjet combustor TPS thermal protection performance can last for thousand seconds. And a mass of the scramjet combustor thermal protection performance data in the normal work situation, such as the fuel flux, the exterior wall temperature distributing and the axial deformation, can be obtained for long time.