基于灰色关联分析的临近空间飞艇虚拟试验模型验证

Verification of stratospheric airship virtual test model based on grey corre-lation analysis

为提高临近空间飞艇虚拟试验模型的可信度和精确度,提出了一种基于灰色关联分析的虚拟试验模型验证方法。首先,具体介绍了临近空间飞艇虚拟试验模型的组成部分;其次,详细阐述了灰色关联分析方法及其计算流程,并通过算例验证了方法有效性;最后,基于灰色关联分析方法,以某临近空间飞艇平台的囊体温度和囊体压力为典型应用对临近空间飞艇关键的虚拟试验模型进行验证与分析。从分析结果可知囊体温度与囊体压力的全局平均灰色关联系数均位于0.9之上,由此表明临近空间飞艇虚拟试验结果与实际飞行试验结果一致性很好,有效验证了临近空间飞艇虚拟试验模型。

In order to improve the credibility and accuracy of the virtual test model of stratospheric airship,a verification method of virtual test model based on grey correlation analysis is proposed.Firstly,the components of stratospheric airship virtual test model are introduced in detail.Secondly,the calculation process of grey corre-lation analysis method is described in detail,and the effectiveness of the method is verified with an example.Fi-nally,based on the grey correlation analysis method,the critical virtual test model of the stratospheric airship is verified and analyzed with the envelope temperature and envelope temperature of the stratospheric airship as the typical applications.The analysis results show that the global average grey correlation coefficients of envelope temperature and envelope pressure are all above 0.9,which indicates that the virtual test results of stratospheric airship are consistent with the actual flight test results,and this method effectively verifies the virtual test model of stratospheric airship.