双基推进剂/包覆层界面脱粘敲击检测的策略

doi:10.12382/bgxb.2021.0573

摘要/Abstract

摘要： 针对双基推进剂/包覆层界面脱粘敲击检测中存在的精度低、效率差、混乱无序等问题，提出一套基于敲击检测原理的策略，并对检测流程作出指导。基于敲击检测的基本特性，分别对被检测的柱体和球头两种特殊曲面进行网格划分，并对网格划分中可能出现的精度敏感性问题进行实验分析。由Barlow检测策略数学模型，提出双基推进剂/包覆层界面检测效率数学模型，该模型分别对顺序检测时间成本和定期检测时间间隔进行了定量分析。提出基于箱型图的波动范围识别方法，可以在缺陷云图中直观显示缺陷位置和恶劣程度。通过完整的工艺流程与案例实验分析表明，所提策略对敲击检测流程与检测后处理措施有一定指导意义。

关键词: 敲击检测, 网格划分, 区域精度, 检测效率策略, 箱型图

Abstract: A series of strategies based on the principle of knock detection are proposed, and guidance is given to the detection process, to address the problems of low accuracy, poor efficiency, confusion, and disorder in the knock detection of the double-base propellant/coating interface debonding. Based on the basic characteristics of knock detection, two specific curved surfaces of the tested cylinder and ball head are meshed independently, and the possible accuracy and sensitivity problems in meshing are experimentally evaluated. A mathematical model of the detection efficiency of the double-based propellant/coating interface is constructed using Barlow's assessment approach as a starting point. The model quantifies the sequential detection time cost and periodic detection interval. And a box-plot based fluctuation range detection approach is proposed to visualize defect location and severity in a defect cloud map. The proposed method is of guiding significance for the knock detection test procedure and post-test treatment measures, according to the whole process flow and experiment analysis of cases.

Key words: tapdetection, meshing, areaaccuracy, testingefficiencystrategies, box-plot

中图分类号:

V250.2

段仕轩，李艳军，曹愈远，张兴成，宋甫成，柯宇航. 双基推进剂/包覆层界面脱粘敲击检测的策略[J]. 兵工学报, 2022, 43(8): 1779-1791.

DUAN Shixuan, LI Yanjun, CAO Yuyuan, ZHANG Xingcheng, SONG Fucheng, KE Yuhang. Strategy of Knock Detection of Double-base Propellant/Coating Interface Debonding[J]. Acta Armamentarii, 2022, 43(8): 1779-1791.

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