CAJ | 학술논문

为了研究含硼推进剂固冲发动机补燃室结构对二次燃烧点火特性和稳态燃烧性能的影响，选择头部距离、补燃室长度和空气入射角度作为结构设计参数，设计了模块化固冲发动机地面试验装置。基于正交试验原理安排试验方案，并开展地面直连试验。试验结果的极差分析表明，结构因素对二次燃烧点火延迟时间影响由强到弱依次为补燃室长度>空气入射角度>头部距离，对二次燃烧效率影响由强到弱依次为头部距离>补燃室长度>空气入射角度。方差分析表明，补燃室结构因素对点火延迟影响不显著，头部距离对二次燃烧效率影响作用较显著，其他因素对燃烧效率影响作用有限。
위료연구함붕추진제고충발동궤보연실결구대이차연소점화특성화은태연소성능적영향，선택두부거리、보연실장도화공기입사각도작위결구설계삼수，설계료모괴화고충발동궤지면시험장치。기우정교시험원리안배시험방안，병개전지면직련시험。시험결과적겁차분석표명，결구인소대이차연소점화연지시간영향유강도약의차위보연실장도>공기입사각도>두부거리，대이차연소효솔영향유강도약의차위두부거리>보연실장도>공기입사각도。방차분석표명，보연실결구인소대점화연지영향불현저，두부거리대이차연소효솔영향작용교현저，기타인소대연소효솔영향작용유한。
In order to understand how combustor structure affects the secondary ignition and combustion characteristics of solid ducked rocket ( SDR) with boron based propellant, dome height, combustor chamber length and side arm angels were selected as structural design parameters and the modular ground test devices of SDR were designed. The experimental scheme was arranged based on orthogonal design theory and the ground direct-connection tests of SDR were carried out. The range analysis of the results shows that structural factors that affect combustor ignition delay from strong to weak is followed by combustor chamber length>side arm angels>dome height.Structural factors that affect secondary combustion efficiency from strong to weak is followed by dome height>combustor chamber length>side arm angels.The analysis of variance (ANOVA) shows that all the selected structural factors have little influence on combustor ignition delay.Dome height has a significant effect on secondary combustion efficiency,while the other two factors have limited influence on secondary combustion efficiency.