基于近红外光谱技术的固体推进剂燃速模型化快速预估方法  

A fast prediction method for solid propellant burning rate modeling based on near infrared spectroscopy technology

作　　者：郭培培 杨英 魏智勇 郭琪 GUO Peipei;YANG Ying;WEI Zhiyong;GUO Qi(Xi'an Aerospace Chemical Power Co.Ltd.,Xi'an 710025,China)

机构地区：[1]西安航天化学动力有限公司,西安710025

出　　处：《固体火箭技术》2024年第3期430-434,共5页Journal of Solid Rocket Technology

摘　　要：利用近红外光谱技术建立了基于近红外光谱的固体推进剂燃速快速预估模型,通过波谱范围筛选和光谱预处理对模型进行优化,并采用内部验证和外部验证对该模型进行评价,验证模型的精密度及准确度。结果表明,基于近红外光谱技术的固体推进剂燃速快速预估模型测试时间约为2 min,燃速偏差范围为-0.122~0.067 mm/s,精密度测试相对标准偏差≤0.4%,准确度测试偏差-0.029~0.057 mm/s。该方法能够在药浆混合阶段快速预测固体推进剂的燃速,提供了一种简单快捷和稳定可靠的燃速测定新方法。A rapid prediction model of solid propellant burning rate based on near infrared spectroscopy was established by means of the near infrared spectroscopy technology.The model was optimized by spectral range screening and spectral preprocessing.The model was evaluated by the internal verification and the external verification to verify its precision and accuracy.The results show that the testing time of the fast prediction model for solid propellant burning rate based on near-infrared spectroscopy technology is about 2 minutes,the deviation range of burning rate is-0.122~0.067 mm/s,the relative standard deviation of precision testing is ≤ 0.4%,and the accuracy testing deviation is-0.029~0.057 mm/s.This method can quickly predict the burning rate of solid propellant in the mixing stage of slurry,and provides a simple,fast,stable and reliable new method for measuring burning rate.

关 键 词：固体推进剂 药浆 近红外光谱技术 燃速模型 燃速快速预测 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]