民用飞机照明系统安全性分析

民用飞机照明系统是飞机系统中一个重要的分支系统,不仅对飞机的安全、飞机性能的充分发挥、机组人员的工作效能起着重要的作用,而且对于旅客来说是评价飞机先进性和舒适性的一个不容忽视的重要组成部分。 民用飞机照明系统通常由驾驶舱照明、客舱照明、货舱与服务区照明、外部照明及应急照明五个功能独立的部分组成。 在照明系统研制过程中,为验证系统对 CCAR25. 1309 条款的符合性,通常遵循 SAE ARP 4761 提出的安全性评估工作方法。 基于安全性评估工作方法, 以照明系统为对象,在设计阶段,通过初步安全性分析确定了系统安全性设计目标、提出了系统架构,在验证阶段,通过运用多种工具对提出的安全性目标进行验证。 此外,探讨了整个系统研制过程中的安全性分析工作的具体方法,为民用飞机安全性分析提供借鉴。

Safety assessment of civil aircraft lighting system

Lighting system is an important branch of civil aircraft, which not only plays a significant role in the safety and performance of the aircraft and the work efficiency of the flight crew, but also is an important component of evaluating aircraft advancement and comfort for passengers. Generally, lighting system is consisted of cockpit lighting system, cabin lighting system, cargo and service area lighting system, exterior lighting system and emergency lighting system. To verify the compliance of lighting system to CCAR 25. 1309 during the system developing process, the methods for system safety assessment proposed by SAE ARP 4761 is generally followed. Based on the methods of security assessment, this article takes lighting system as the object. In the design phase, the safety design goals were determined and the system architecture was put forward through preliminary safety assessment. The safety design goals proposed earlier were verified by using a variety of methods during the verification period. In addition, the specific methods of safety analysis assessment during the whole development process were discussed, which can provide reference for the safety analysis of civil aircraft.