本文描述了民用飞机再循环系统功能分析的步骤,主要包括再循环系统功能识别、功能定义、功能架构生成和功能架构确认等活动,目的在于明确民用飞机再循环系统的功能特性并建立再循环系统的功能架构,以便围绕功能进行再循环系统需求捕获、接口定义和权衡分析,指导再循环系统的物理实现。 This paper describes the steps of the functional analysis of the civil aircraft recirculation system, including the functions of the recirculation system, the definition of the functions, the generation of the functional architectures and the confirmation of the functional architectures. The purpose is to clarify the functional characteristics of the recirculation system and to establish a recirculation system Functional architecture to capture demand-capture, interface definition and trade-off analysis of recirculation systems around functions to guide the physical implementation of the recirculation system.