飞机机载设备振动环境谱的数据处理与编制

Data Processing and Compilation of Vibration Environmental Spectrumfor Aircraft Airborne Equipment

飞机机载设备振动环境谱的数据处理与编制是飞机机载设备环境可靠性试验的重要组成部分,对保障飞机机载设备的安全性和可靠性具有十分重要的意义。以客运飞机为例,对基于Welch法和GJB最新标准的飞机机载设备振动环境谱数据处理与编制技术进行了研究,根据实测数据和相关资料统计,编制出了飞机机载设备综合环境试验剖面图。所建立的针对飞机机载设备振动环境谱数据处理方法与编制原理,满足了飞机机载设备振动环境谱的试验要求,为机载设备振动环境的可靠性评定奠定了基础。

The data processing and compilation of vihration environmental spectrum is an important part of environmental reliability test for aircraft airborne equipment. It has great significance for guaranteeing the security and reliahility of aircraft airborne equipment. This paper takes passenger aircraft as an example and makes the research on data processing and compilation of vibration environmental spectrum based on Welch method and the latest GJB. This paper compiles synthetically experimental profile for aircraft airborne equipment on the basis of measured data and statistical information. The methods of data processing and compilation principie of vihration environmental spectrum, which this paper discusses, are able to he adapted to the testing requirement of vibration environmental spectrum for aircraft airborne equipment. This paper lays a foundation for reliability assessment of vibration environment for aircraft airborne equipment