东北大学学报(自然科学版) ›› 2022, Vol. 43 ›› Issue (9): 1250-1255.DOI: 10.12068/j.issn.1005-3026.2022.09.005

• 信息与控制 • 上一篇    下一篇

层次期望提高航天器抗辐射等效试验方法

张路路1, 范俊1, 金光1, 张昆2   

  1. (1. 国防科技大学 系统工程学院, 湖南 长沙410073; 2. 国防科技大学 文理学院, 湖南 长沙410073)
  • 发布日期:2022-09-16
  • 通讯作者: 张路路
  • 作者简介:张路路(1988-),男,山东德州人,国防科技大学博士研究生; 金光(1973-),男,河北抚宁人,国防科技大学教授,博士生导师.
  • 基金资助:
    湖南省研究生科研创新资助项目(CX20200079).

Equivalent Test Method of Spacecraft Anti-radiation Based on Hierarchical Expected Improvement

ZHANG Lu-lu, FAN Jun, JIN Guang, ZHANG Kun   

  1. 1. College of Systems Engineering, National University of Defense Technology, Changsha 410073, China; 2. College of Science, National University of Defense Technology, Changsha 410073, China.
  • Published:2022-09-16
  • Contact: FAN Jun
  • About author:-
  • Supported by:
    -

摘要: 受地面试验条件限制,无法进行航天器抗多组源X射线地面模拟试验,提出了一种单组源X射线数值模拟等效试验方法.针对期望提高方法构建的等效试验模型在等效试验搜索过程中存在“过度贪婪”问题,构建了层次期望提高等效试验模型,并在此基础上对提高函数进行了二次方处理,进一步改善层次期望等效试验模型的全局搜索能力.以碳纤维增强树脂(carbon fiber reinforced polymer, CFRP)材料的抗X射线辐射数值模拟试验为对象,利用层次期望提高等效试验模型进行等效试验输入值搜索.结果表明层次期望提高等效试验模型具有更高的搜索精度.

关键词: 层次期望提高;等效试验;高斯过程模型;X射线辐射;CFRP材料

Abstract: Restricted by test conditions, performing spacecraft anti-multi-source X-ray ground simulation test is generally difficult. A single source X-ray numerical simulation equivalent test method is proposed. To overcome the “excessive greedy” phenomenon of the expected improvement(EI)method in the equivalent test points searching, a hierarchical EI equivalent test model is established. On this basis, by introducing quadratic terms into the improvement function, the model’s global searching ability is further improved. The anti-X-ray radiation numerical simulation test of CFRP material is subject to the object, and the hierarchical EI equivalent test model is used for equivalent test input value search. The results indicate that the hierarchical EI equivalent test model has higher search accuracy.

Key words: hierarchical expected improvement; equivalent test; Gaussian process model; X-ray radiation; CFRP material

中图分类号: