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将温湿环境实验与阻尼性能测试技术相结合,搭建了温湿环境中嵌入式共固化复合材料阻尼性能的实验测试平台,提出使用最小二乘技术求解相对阻尼系数的新方法,分别探讨了温度和湿热耦合参数对嵌入式共固化碳纤维/双马来酰亚胺复合材料阻尼系数的影响曲线。结果表明:嵌入式共固化复合材料的相对阻尼系数随温度的升高先增加再减小后增大;湿热耦合作用下相对阻尼系数随湿度和温度的提高而增大。为该新型复合材料阻尼结构的设计和全天候应用奠定了基础。
Combining temperature and humidity environment experiment and damping performance testing technology, an experimental test platform for damping property of embedded co-cured composites in warm and humid environment was set up. A new method of solving relative damping coefficient using least-squares technique was proposed. Temperature, And damp-heat coupling parameters on the damping coefficient of embedded co-cured carbon fiber / bismaleimide composite. The results show that the relative damping coefficient of the embedded co-cured composites increases first and then decreases and then increases with the increase of temperature. The relative damping coefficient increases with the increase of humidity and temperature. This new composite damping structure design and all-weather applications laid the foundation.