综合模块化航电是未来民机发展趋势。IMA系统硬件架构复杂,需要健壮的软件系统支撑,必须予以充分的理论研究,评估系统安全风险以满足适航取证要求。结合系统安全性分析理论和基本方法,本文重点讨论了在IMA研究和应用中需要注意的技术问题,以期为型号研制提供理论和方法支撑。
Integrated Modular Avionics (IMA) is a prominent trend in research and development of civil airplane. Generally IMA has complicated hardware structure and robust software support. Elements research and safety evaluation is prerequisite for airworthiness qualification. Some fundamentals and technique keys have been discussed in details in this program. And these bring forward new thoughts which are good for airplane development.