飞机结构环境谱初探

RESEARCH OF ENVIRONMENTAL SPECTRUM FOR AIRCRAFT STRUCTURE

本文给出环境谱的定义及编谱的基本方法。对总体气候/化学环境因素的分布和随时间变化的规律进行了探讨。统计分析了我国各气候区和飞机典型使用地区的总体环境,提供了气温、湿度、太阳辐射、二气化硫,海水盐度及盐雾等国内实测数据。

According to the strength and rigidity specificaton and structural integrity program, it is necessary to verify the structural integrity of airplane structures under climatic/chemical/thermal environments. This paper presents the definition of the environmental spectrum and the basic methods of how to draw up the spectrum. The distribution of the total climate/chemical environment and the variational law with respect to time are investigated. The total environments for various climate regions and typical flying regions of aircraft are statistically analyzed, and the observed data, including atmosphere temperature, air humidity, solar-radiation, sulphur dioxide, seawater salinity and salt fog etc, are provided. All of these investigations can be used for structural integrity test under environmental spectrum and for reference of environmental research.