多参数空测数据的统计分析和疲劳载荷状态的确定

 介绍多元统计分析理论在多参数空测数据统计分析中的应用和发展,以及由多参数统计分析确定疲劳载荷状态的方法。简述了统计分析程序的功能,给出了用某型战斗机实测数据进行统计分析的具体实施过程和结果。最后提出了由聚类分析结果确定疲劳载荷状态的归并原则。

STATISTICAL ANALYSIS OF MULTIPARAMETER FLIGHT DATA AND DETERMINATION OF FATIGUE LOAD STATES

Based on the research and practical experience for many years,the use and develop- ment of the multivariate statistical analysis theory in the multiparameter flight measured data are introduced in this paper.Using average error method,k-average value method,minimum dis- tance method and Isodata method comprehensively,a multi-classification analysis method is proposed,and the minimum distance method and Isodata method are improved.The principle and steps determining the typical fatigue load states by means of the principal component analy- sis and multi-classification analysis are suggested. The calculating program is briefly introduced. Finally,an example using this procedure to the flight measured data of a kind of fighter aircraft is given.