满足DO-254的机载电子硬件需求开发及管理研究

Research on Development and Management of Airborne Electronic Hardware Requirements for DO-254 Compliance

硬件需求作为机载电子设备设计的源头,在整个研发过程中具有举足轻重的作用,开发符合适航要求的高质量需求,对整个产品的适航取证至关重要。DO-254作为机载电子硬件的一种适航符合性方法,在国内的应用还处于摸索学习阶段。根据DO-254的要求,在概述硬件需求的类型和特性的基础上,结合工程实例详细介绍了硬件需求的具体分解方法、需求追溯及变更控制管理,并根据工程实践总结了需求开发经验,在一定程度上弥补了DO-254重在讲目标和要求而缺乏具体实施细节指导的不足,对工程实践具有借鉴和参考意义。

As the source of airborne electronic equipment design, hardware requirements play an important role in the whole development process.Developing high-quality requirements that meet airworthiness requirements is very important for the airworthiness certification of the product.As an airworthiness compliance method of airborne electronic hardware, the application of DO-254 in China is still in the stage of learning and practice.According to the requirements of DO-254,this paper gives a brief introduction to the types and characteristics of hardware requirements, introduces the decomposition methods, traceability and change control management of hardware requirements in detail with engineering examples, and summarizes the experience of requirements development according to engineering practice, which makes up for the lack of detailed guidance for implementation in DO-254 which is focusing on objectives and requirements.It is meaningful for engineering application practice as a reference.