摘要
在回顾微气体延期药的理论研究进展的基础上,对微气体延期药的燃烧模型、计算机软件进行了系统总结。根据气-固相反应燃烧模型和热点球面燃烧模型的基本假设,给出了相应的燃烧速度计算公式;并阐述了燃速计算程序代码HARDT的理论基础、燃速方程及其计算精度;运用ANSYS软件对隔板延期装置进行了热分析研究,建模结果显示,隔板中心的温度高于隔板边缘的温度,将最先达到点火药的发火点;比较了实测值与理论推测值,误差约为10%。
With respect to theoretical studies on gasless delay composition, the combustion model and computer software for delay composition are reviewed systematically. According to the hypothesis of the reaction combustion model of gas-solid phases and the spherical combustion model starting from a hot spot, the corresponding calculation of burning rate is carried out and the burning model empirical formula are obtained. The basis of theory and formula for delay burn rate codes （HARDT） is discussed, including the burning rate formula and the computing accuracy. ANSYS is used to establish a model to study the delay device with separated cavity. The results show that the temperature in the center of the clapboard is higher than that at the edges, and will first reach the ignition temperature of the igniter composition. The experimental values of delay time are compared with the predicted ones, and the error is about 10%.
出处
《科技导报》
CAS
CSCD
2007年第20期48-51,共4页
Science & Technology Review
