A Forward Development Method for Functional Design of Civil Aircraft Flight Control System

doi:10.16183/j.cnki.jsjtu.2022.100

Abstract

Abstract:

Functional design is an extremely important part in the design and development of complex systems. It is necessary to establish a forward development method to ensure the correctness and completeness of functional design. Therefore, taking the flight control system of civil aircraft as an example, a forward development method for functional design is proposed. First, system modeling language is used to establish the functional requirements relationship model from aircraft level to system level and then to item level. Then, the functional requirements are combined with the safety requirements in SAE ARP4754A aircraft development guide to construct the functional knowledge set of the flight control system. Finally, the functional model of the flight control system is established based on functional unit block diagram and functional integration block diagram. This method can be used as a reference for the functional design of complex systems.

Key words: functional design, flight control system, functional requirement, functional model

CLC Number:

TH122

CHENG Shuai, LI Chen, ZHANG Yilun, TANG Chao, MENG Xianghui, XIE Youbai. A Forward Development Method for Functional Design of Civil Aircraft Flight Control System[J]. Journal of Shanghai Jiao Tong University, 2023, 57(10): 1305-1315.

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符号	含义	符号	含义
IPT	输入	EVR	环境信息
A	模拟信号	PLT	驾驶员指令
OPM	优化	NOR	正常模式
F_TRF	转换功能	SEC	辅助模式
F_STR	存储功能	DIR	直接模式
F_SPT	支撑功能	SEN	发送
F_STM	激励功能	RET	返回
OPT	输出	PSD	故障显示
D	数字信号	δ,σ	一致性校验结果
ATT	姿态信息	α,β,γ,η	控制系数