固体火箭发动机体空间缺陷最大直径矢量特征测量方法

朱敏; 李朋; 卢洪义; 于光辉

doi:10.13224/j.cnki.jasp.2015.02.031

固体火箭发动机体空间缺陷最大直径矢量特征测量方法

doi: 10.13224/j.cnki.jasp.2015.02.031

1. 海军航空工程学院七系, 山东烟台 264001;
2. 海军航空工程学院飞行器工程系, 山东烟台 264001

基金项目:

国家自然科学基金(51005242)

详细信息

作者简介:
朱敏(1978-),男,安徽和县人,副教授,博士,主要从事固体火箭发动机故障诊断研究.

中图分类号: V435
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- 被引次数: 0
出版历程
- 收稿日期: 2013-09-04
- 刊出日期: 2015-02-28

Measurement method of defect maximum diameter vector feature of solid rocket motor in volume space

1. NO.7 Department, Naval Aeronautical and Astronautical University, Yantai Shandong 264001, China;
2. Department of Airborne Vehicle Engineering, Naval Aeronautical and Astronautical University, Yantai Shandong 264001, China

摘要

摘要: 针对固体火箭发动机工业CT(computed tomography)三维扫描数据,从计算时间和测量精度两方面考虑,结合固体火箭发动机内部缺陷体空间数据场的特征,通过改进传统的空间最大距离求解法——擂台法,提出了基于分类种子点法的体空间缺陷最大直径矢量特征测量方法.设计了预置缺陷的固体火箭发动机,经实验验证,相比传统擂台法,该方法能够提高测量精度和缩短计算时间,最大直径及其与轴向锐角夹角的最大测量误差在10%以下,为固体火箭发动机三维可视化故障诊断奠定了基础.
- 固体火箭发动机 /
- 体空间 /
- 最大直径 /
- 矢量特征测量 /
- 工业CT
Abstract: Based on the three-dimensional scanning data of solid rocket motor by industrial computed tomography, and considering the computation time and measurement accuracy, the traditional space maximum distance measuring method, named as challenge method, was improved by combining the defect features of the solid rocket motor volume space data field. The defect maximum diameter vector feature measurement method in volume space based on classified seed point method was proposed. The solid rocket motor with presetted defects was designed. Experiments show that the proposed method can improve the measurement accuracy and shorten the computation time compared with traditional challenge method, and the maximum errors of maximum diameter and axial acute angle are less than 10%, which is the foundation for solid rocket motors three-dimensional visualization fault diagnosis.
- solid rocket motor /
- volume space /
- maximum diameter /
- vector feature measurement /
- industrial computed tomography (CT)

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参考文献(18)

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