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空中环境谱编制中的假设检验方法
引用本文:蒋荟,杨晓华,祝华远.空中环境谱编制中的假设检验方法[J].航空学报,2007,28(6):1359-1363.
作者姓名:蒋荟  杨晓华  祝华远
作者单位:1. 海军航空工程学院青岛分院,航空装备保障指挥系,山东,青岛,266041
2. 海军航空工程学院青岛分院,航空机械系,山东,青岛,266041
摘    要: 在依据空测环境数据通过模糊聚类分析确定空中环境谱区域划分中,提出了对分类的各类数据总体分布齐次性检验加以判别和归类的方法。通过对典型应用实例中3种检验方法(t分布假设检验、秩和检验、斯米尔诺夫检验)检验结果的分析,确定使用秩和检验与斯米尔诺夫检验相结合的方法进行空中环境谱模糊聚类分析的假设检验,使空中环境谱的区域划分更为科学合理。

关 键 词:航空器地面试验  空中环境谱区域划分  齐次性假设检验  模糊聚类分析  飞机结构损伤  
文章编号:1000-6893(2007)06-1359-05
修稿时间:2006年11月17

Hypothesis Testing Methods in Air Environmental Spectrum Compiling
Jiang Hui,Yang Xiaohua,Zhu Huayuan.Hypothesis Testing Methods in Air Environmental Spectrum Compiling[J].Acta Aeronautica et Astronautica Sinica,2007,28(6):1359-1363.
Authors:Jiang Hui  Yang Xiaohua  Zhu Huayuan
Institution:1 Department of Aeronauticol Equipment Assurance Direction, Naval Aeronautical Engineering InstituteQingdao Branch 2 Department of Aeronautical Mechanism, Naval Aeronautical Engineering Institnte Qingdao Branch
Abstract:Air environmental spectrum is the important composing part of airplane service environmental spectrum. Large amount of spectrum data without evident dividing line is classified by fuzzy clustering method. The homogeneity between their parent distribution functions is tested by three commonly used hypothesis testing methods: t distribution hypothesis test, rank-sum test and Smirnov test. According to their characteristics and the results of air environmental spectrum clustering analysis, the t distribution hypothesis testing is more sensitive than the other two and does not meet the requirements of air environmental spectrum compiling. As a result, the latter two methods are associated and applied to the hypothesis testing of air environmental spectrum clustering analysis.
Keywords:ground experiment of aircraft  zone dividing of air environmental spectrum  hypothesis testing of homogeneity  fuzzy clustering analysis  damage of airplane structure
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