民用飞机复合材料结构制造工艺变化的等效性验证

高性能复合材料已经大量应用于民用运输飞机结构,并以飞机主制造商协同供应商的方式进行复合材料飞机结构的制造。介绍了航空器适航审定对复合材料结构制造的适航要求,引出了复合材料结构制造工艺变化的等效性验证方法。目前,复合材料结构制造工艺变化的等效性验证是通过所制造复合材料物理的、化学和基本力学的性能试验,并对试验结果进行统计分析来实现的。最后提供了等效性验证的接受准则。所述内容,对国内民用飞机复合材料结构在不同供应商处制造以及制造过程中工艺变化如何满足航空器适航审定要求提供借鉴;对其它行业复合材料结构制造的质量控制也有借鉴意义。

The Equivalency Substantiation of Composite Structure Manufacturing Process Changes for Civil Aircraft

High-performance composite materials were widely applied in civil aircraft structure. The fabrication of composite aircraft structures was usually achieved by cooperation of manufacturer and suppliers. The article describes airworthiness tye certification requirements for fabrication of composite aircraft structures, and introduces the airworthiness requirements for equivalency substantiation of composite structure manufacturing process changes. At present, equivalency substantiation should be based on a comparability study among the physical, chemical and mechanical performances of the material fabricated by accepted process and follow-on process. At last, the successful criterion for equivalency substantiation of composite structure manufacturing process changes is presented.The methods in this paper provide guidelines to type certification applicants and help them to show compliance with airworthiness requirements when the composite structures were fabricated by different suppliers. The methods could be used as reference for quality control of composite fabrication in other industry field.