基于最小距离法的高过载条件下发动机燃面推移与内弹道性能研究  

Research on Grain Burnback and Internal Ballistic Performance of Solid Rocket Motor under High Overload Conditions Based on Minimum Distance Function

作　　者：吝琳 尚永腾 李冲冲[2] 白涛 郭梦飞 Lin Lin;Shang Yongteng;Li Chongchong;Bai Tao;Guo Mengfei(AVIC the First Aircraft Institute,Xi’an 710089,China;China Airborne Missile Academy,Luoyang 471009,China;School of Aircraft,Xi’an Aeronautical University,Xi’an 710077,China;School of Mechanical and Precision Instrument Engineering,Xi’an University of Technology,Xi’an 710048,China)

机构地区：[1]航空工业第一飞机设计研究院,西安710089 [2]中国空空导弹研究院,河南洛阳471009 [3]西安航空学院飞行器学院,西安710077 [4]西安理工大学机械与精密仪器工程学院,西安710048

出　　处：《航空兵器》2022年第6期50-55,共6页Aero Weaponry

摘　　要：装药推移过程中燃面的精确计算是固体发动机燃烧室内弹道性能计算的基础,发动机的过载工况会显著影响发动机装药的燃面面积、药柱推移和内弹道性能。最小距离函数(MDF)方法适用于计算复杂三维药柱的推移过程,具有较高精度。本文基于MDF方法,以工程应用中常见的管+星状药柱为研究对象,针对高横向过载的发动机工作环境,计算获得了推进剂燃面面积、燃面推移以及发动机内弹道性能,在此基础上综合分析了过载对发动机燃面和内弹道性能的影响。The accurate calculation of the burning surface during the grain burnback is the basis for the ballistic performance calculation of solid rocket motor.The overload conditions of the motor can significantly affect the burning surface area,grain burnback and internal ballistic performance of the motor.The minimum distance function(MDF) method is suitable for calculating the burnback process of complex three-dimensional grains,and has high precision.Based on the MDF method,this paper takes the common tube and star grain in engineering applications as the research object,and for the rocket motor working environment with high lateral overload,the burning surface area,grain burnback and internal ballistic performance of the motor are calculated and obtained.On this basis,the influence of overload on the burning surface area and internal ballistic performance of the motor is comprehensively analyzed.

关 键 词：固体火箭发动机 推进剂 高过载 燃面计算 药柱推移 内弹道性能 飞行器 

分 类 号：TJ760[兵器科学与技术—武器系统与运用工程] V43[航空宇航科学与技术—航空宇航推进理论与工程]