基于主成分分析的舰载机着舰安全综合评价

Comprehensive Evaluation on Safety of Carrier-based Aircraft Landing Based on PCA

应用基于主成分分析的综合评价方法,以美军某型舰载机着舰时的统计数据为例,通过计算主成分对原始变量信息的保留程度,验证了选取9个主成分进行综合评价的正确性和可行性;最后根据随机选取的10次着舰过程综合评价了舰载机着舰性能和安全性的优劣;基于主成分分析的舰载机着舰安全综合评价,将主成分分析与舰载机着舰过程的机理分析相互结合,通过从多变量统计数据中提取舰载机着舰过程状态参数进行舰-机系统安全状态判断及监控的方法对舰载机着舰过程的描述准确性较高,并具有较强的工程实用性。

The landing process of a type of USA carrier-based aircraft was illustrated to calculate the pres- ervation information of initial variable, and verify the validity and feasibility of 9 principal components by comprehensive evaluation based on PCA. According to 10 times landing process randomly, the landing performance and safety were evaluated comprehensively. Comprehensive evaluation on safety of carrier- based aircraft landing based on PCA, which can combine PCA with mechanism of deck landing. Charac- teristic variables that influence carrier-based aircraft landing safety were extracted based on statistical data. The method supports carrier-based aircraft landing safety analysis, monitoring and decision-making with a reasonable and exactly data processing. The analysis result demonstrates the practicability and credibility of the method.