航空动力装备顶层功能分解分配建模方法研究

doi:10.11996/JG.j.2095-302X.2024020292

摘要/Abstract

摘要：

聚焦航空动力装备顶层功能分解分配过于依赖经验、功能界面划分不合理、子系统承接功能不清晰等问题，通过研究MBSE建模方法、系统建模语言(SysML)的特点和优势，将行为图、结构图、矩阵视图等融入功能设计活动，提出了基于模型的航空动力装备功能分析方法。首先通过环境背景图建模识别航空动力装备系统边界与交互信息；其次通过用例图分析系统顶层功能，每项顶层功能通过用例自动生成关联活动图进行建模分析，通过概念方案论证实现功能的初步分解，并与系统架构建模、功能危害性评估(FHA)迭代，完成单项功能详细分解；最后通过分配矩阵和分配视图得到子系统的功能清单，以作为子系统功能分析的输入。研究表明，基于模型的方法可以有效解决航空动力装备领域功能分解分配不清晰的问题，构建的功能模型典型案例，可为后续航空动力装备数字样机1.0建设提供技术路径。

关键词: 系统工程, 正向设计, 功能建模, 分解分配, SysML

Abstract:

Focused on the problems of top-level functional decomposition and allocation for aviation power equipment, such as overly reliance on experience, unreasonable division of functional interfaces, and unclear functional undertaking of subsystems, this paper proposed a model-based functional analysis method for aviation power equipment by studying the characteristics and advantages of MBSE modeling method, system modeling language (SysML) and by integrating behavior diagram, structure diagram, and matrix view into the functional design activities. Firstly, the system boundary and interaction information of aviation power equipment were identified through modeling of environment background diagram. Secondly, the top-level functions of the system were analyzed through use case diagram. Each top-level function was analyzed through modeling by automatically generating associated activity diagrams from the use case. The initial decomposition of functions was realized through conceptual scheme demonstration, and iterated with system architecture modeling and functional hazard assessment (FHA) to complete the detailed decomposition. Finally, the function list of subsystems was obtained through allocation matrices and allocation views, serving as the input for subsystem function analysis. The research demonstrated that the model-based method could effectively address the problem of unclear functional decomposition and allocation in the field of aviation power equipment. The typical cases of constructed functional model could provide a technical path for the subsequent construction of aviation power equipment digital prototypes 1.0.

Key words: systems engineering, positive design, functional modeling, decomposition &, allocation, SysML

中图分类号:

TP391

贺文虎, 刘伟, 王酉龙, 蔡珲. 航空动力装备顶层功能分解分配建模方法研究[J]. 图学学报, 2024, 45(2): 292-299.

HE Wenhu, LIU Wei, WANG Youlong, CAI Hui. Research on modeling method of top-level function decomposition and allocation for aviation power equipment[J]. Journal of Graphics, 2024, 45(2): 292-299.

图/表 10

图1 基于模型的航空动力装备功能分析流程

Fig. 1 Model-based functional analysis process for aviation power equipment

图2 作战使用场景下航空动力装备系统交互

Fig. 2 The interaction of aviation power equipment system in combat use scenario

图3 航空动力装备顶层功能

Fig. 3 Aviation power equipment top level function

图4 航空动力装备推力需求

Fig. 4 Thrust requirements for aviation power equipment

图5 航空动力装备系统逻辑架构

Fig. 5 Logical architecture of aviation power equipment

图6 提供推力功能建模结果(局部)

Fig. 6 Thrust requirements for aviation power equipment provide thrust function modeling results (part)

图7 顶层功能分配矩阵总体视图(局部)

Fig. 7 Top-level function allocation matrix global view (part)

图8 压缩系统承接功能

Fig. 8 The function of compression system

图9 排气系统承接功能

Fig. 9 The function of exhaust system

图10 控制系统承接功能

Fig. 10 The function of control system

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