机载电子硬件承担的系统功能越来越多, 基于成本考虑, 使用COTS IP成为一种趋势, 也为适航审定带来挑战。首先分析了COTS IP在机载电子硬件设计中的使用位置及带来的风险, 研究了当前适航审查需求, 然后依据局方文件和审定经验提出了建议的评估过程, 并总结适航审查要素。研究成果有助于解决COTS IP的适航审定问题, 为现有机载电子硬件设计保证方法提供参考。

Airborne electronic hardware is assuming more and more system functions. Considering the cost, using COTS IP becomes a trend, which also brings challenges to airworthiness certification. The usage position and risk of COTS IP in airborne electronic hardware design are analyzed, and the current airworthiness certification requirements are studied. A suggested evaluation process is proposed based on the authority documents and certification experience, and the airworthiness certification elements are summarized. The research results are helpful to solve the airworthiness certification issues of COTS IP, and provide a reference for the existing airborne electronic hardware design assurance methods.