飞机表面涂层海洋环境试验与实验室环境试验相关性研究

目的研究5类典型飞机表面涂层南海大气环境试验与实验室环境试验的相关性。方法在南海域环境开展5类典型飞机表面基材及涂层的户外暴露试验,试验时间为3年,同时在实验室开展太阳辐射-湿热-盐雾组合试验。通过测试外观、光泽度、色差研究两种试验环境的相关性。结果将失光率、色差、老化评级为基准得出的秩相关系数进行平均,计算得出平均秩相关系数为0.96,说明涂层样品的试验实验室加速试验和自然暴露试验为极强相关。结论通过秩相关系数法证明了表面涂层在南海大气环境试验和实验室环境试验的极强相关性,可为后续南海环境试验的加速处理提供依据。

Correlation between Marine Atmospheric Environmental Test and Laboratory Environmental Test of Aircraft Surface Coating

Objective To study the correlation between surface airborne environmental tests in the South China Sea and laboratory environmental tests for five types of typical aircraft. Method The outdoor exposure tests of five types of typical aircraft surface substrates and coatings were conducted in South China Sea environment for three years. At the same time, solar radiation-damp heat-salt spray combination tests were conducted in the laboratory. The correlation between the two test environments was examined by testing appearance, gloss, and chromatic aberration. Results The rank correlation coefficients obtained from the basis of the loss of light, color difference, and aging rating were averaged, and the average rank correlation coefficient was calculated to be 0.96, indicating that the test laboratory accelerated test and the natural exposure test of the coated sample were extremely strongly correlated. Conclusion The correlation of the surface coating in the South China Sea atmospheric environment test and the laboratory environmental test is proved by the rank correlation coefficient method. It provides a basis for the follow-up treatment of the South China Sea environmental test.