固体推进剂侵蚀燃烧状态下的动态燃速测试方法研究  

Dynamic burning rate testing methods for solid propellants under erosive combustion conditions

作　　者：薛海峰[1] 陈庆堃 李晨阳 刘锐[2] 武炎 Xue Haifeng;Chen Qingkun;Li Chenyang;Liu Rui;Wu Yan(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;School of Intelligent Manufacturing,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学机械工程学院,江苏南京210094 [2]南京理工大学智能制造学院,江苏南京210094

出　　处：《南京理工大学学报》2024年第6期729-736,共8页Journal of Nanjing University of Science and Technology

摘　　要：为了测量固体推进剂在侵蚀燃烧状态下的动态燃速,设计了侵蚀燃速测试系统。该测试系统以透明窗发动机为主体,包括压力传感器、高速相机和数据采集系统。透明窗发动机用于构建推进剂试样产生侵蚀燃烧的高温高压横向燃气流条件,高速相机用于采集试样表面燃烧退移过程。以某制式丁羟推进剂为测试对象,开展了侵蚀燃烧热试车试验,并结合数值研究,对所构建的侵蚀燃速测试方法及数学模型的准确性进行分析与验证。结果表明:该侵蚀燃烧测试方法具有低成本、高效率等一系列突出优点,能够实现单次试验获得多组数据,适用于多种固体推进剂的侵蚀燃速快速测量。In order to measure the dynamic burn rate of solid propellants under erosive combustion conditions,a testing system for erosive burn rate is designed.This testing system is based on a transparent-window engine and includes pressure sensors,high-speed cameras,and a data acquisition system.The transparent-window engine is used to create high-temperature and high-pressure transverse gas flow conditions for the propellant sample to produce erosive combustion,and the high-speed camera is used to capture the process of combustion recession on the sample surface.A certain standardized hydroxy terminated polybutadiene propellant is used as the test subject,and a hot firing test for erosive combustion is carried out.Combined with numerical research,the accuracy of the constructed erosive burn rate testing method and mathematical model is analyzed and verified.The results demonstrate that this erosive combustion testing method has a range of significant advantages,including low cost and high efficiency.It is capable of acquiring multiple data sets in a single test run and is well-suited for the rapid measurement of erosive burn rates across various solid propellants.

关 键 词：固体推进剂 侵蚀燃烧 燃速测量 透明窗发动机 压力传感器 高速相机 数据采集系统 

分 类 号：TJ714[兵器科学与技术—武器系统与运用工程]