针对某海域环境特点, 参考国内外环境谱编制方面的技术成果, 提出了适合某海域服役直升机外部涂层的加速环境谱。该谱由湿热暴露、紫外光照、盐雾三个环境模块组成。给出了各环境模块试验条件的确定方法和与舰面环境实际暴露时间的当量关系。通过典型铝合金件的试验室加速试验和舰面暴露试验对比, 验证了该加速谱的合理性与当量关系的准确性。

An accelerated environmental spectrum for the outer coating of helicopter is presented, combined with the environmental features in a certain area and referred to existing research results. The spectrum is composed of hot-humid enviroment, ultravillet radiation and salt spray. The method for determining the parameters of every process and the equivalent relation between the accelerated spectrum and the nature environment are presented. The rationality of equivalent relation between the accelerated corrosion enviroment spectrum and the enviroment on the deck was validated by corrosion degree of the coating.