固体火箭发动机装药缺陷特征及危害性影响分析

Characters and Hazard Analysis of Charge Defects in Solid Rocket Motor

为得出表征固体火箭发动机缺陷危害性影响因素的参数,统计归纳了其存在的各种缺陷,详细分析了脱粘、夹渣、气泡、裂纹等缺陷的形状特征、位置特征和灰度特征,通过灰度特征分析得出了缺陷周围灰度变化规律。分析了不同位置、不同表面积和不同走向的缺陷对固体火箭发动机造成的不同危害性影响,得出表征缺陷危害性影响因素的参数为缺陷的几何中心、缺陷的表面积、缺陷的最大直径长度、最大直径与轴向夹角。

To get influential parameters to represent hazardous factors of solid rocket motor,the various defects in solid rocket motor were generalized statistically,and the characters of shape,position and grey of debonding,slag inclusion,bubble,and cracks and so on were analyzed in detail.The grey feature analysis drew the law of grey change around the defects.The hazard effects of defects in the rocket motor in various position,surface and direction were analyzed.The research shows that the influential parameters to represent the hazardous factors are the geometric center of the defect,the surface area of the defects,the maximum diameter length and the angle between the maximum diameter and the axe.