论文部分内容阅读
对高速运动分析仪拍摄的U型燃气发生器固体装药燃烧和双组元液体喷嘴雾化图像进行了边缘检测图像分析,根据被分析实物边缘层次性较强的特点,在简单边缘检测的基础上采用自动门限、二次门限和最佳滤波的方法,获得了固体燃气发生器在燃烧过程中的内部结构、推进剂瞬态燃速、绝热隔板烧蚀率等参数,获得了双组元液体喷嘴的雾化角、粒子分布等特性。
Based on the analysis of edge detection and image analysis of U-shaped gas generator solid charge combustion and dual-component liquid nozzle atomized image taken by high-speed motion analyzer, based on the analysis of the physical layer edge characteristics of the strong, based on the simple edge detection On the basis of automatic threshold, quadratic threshold and optimal filtering, the internal structure of solid fuel gas generator in combustion process, the transient burning rate of propellant and the ablation rate of heat insulation baffle were obtained. Liquid nozzle atomization angle, particle distribution and other characteristics.