民用直升机电传飞控系统适航专用条件分析

先进电传飞行控制系统能够在很大程度上提升民用直升机的操纵性与稳定性，但这种新颖设计给安全性的评估带来了巨大挑战。传统的适航条款可能无法完全覆盖电传飞控直升机的设计特征，需要制定相应的专用条件来判断直升机设计是否满足适航要求。本文围绕直升机电传飞控系统结构交联、操纵权限感知、飞行机组告警、飞行包线保护、指令信号完整性五种专用条件，指出专用条件关注的技术内容；说明条款制定的背景和意义，给出现有的符合性方法及验证技术，并提出直升机电传飞控在型号论证和设计过程中的关键技术问题。本文研究可为民用直升机的适航设计与审定提供一定参考。

Analysis on Airworthiness Special Conditions of Civil Helicopter Fly-by-wire Flight Control System

The advanced fly-by-wire flight control system can greatly improve the maneuverability and stability of civil helicopters, but this novel design also brings huge challenges to safety assessment. Traditional airworthiness standards may not fully cover the design features of fly-by-wire flight control helicopters, and corresponding special conditions need to be formulated to determine whether the helicopter design meets the airworthiness requirements. This article focuses on the four special conditions of civil helicopter fly-by-wire system: interaction of systems and structure, control authority perception, crew alerting system, integrity of command signal and flight envelope protection. First, the technical content of the conditions is given, and then the background and significance of the formulation of the terms are explained. The existing compliance methods and compliance design are given, and the results can provide a certain reference for the airworthiness design and certification of civil helicopters.