Treffer: 基于 OOPN 的飞机机电系统虚拟维修结构建模研究.

Driving by individual maintenance task is the main reason for the cross impact and weak development mobility of aircraft electromechanical virtual system model, which makes it difficult to adapt to the development of complex system functional requirements and multi-coupling simulation tasks. In this regard, a modeling method based on system structure logic is proposed. Firstly, a structural model based on object-oriented technology and Petri net technology (OOPN) is constructed. Then, based on the application goal, the internal correlation between the system structure and maintenance tasks is analyzed and the modules are divided according to functions. The OOPN model of the subsystems and the overall system model are established according to the logical relationships between the subsystems. On this basis, the fault correlation effects of key components are introduced and a comprehensive structural model that can cover the normal, testing, and fault behavior of the system is established. Furthermore, the activity of the constructed model is analyzed by the correlation matrix. Finally, simulation is conducted on the virtual maintenance training platform of A320 aircraft, using the maintenance task group of hydraulic oil level detection and alarm system as an example to verify the effectiveness of the model. [ABSTRACT FROM AUTHOR]

以个别维修任务为驱动是造成飞机机电虚拟系统模型交叉影响、开发迁移性弱的主要原因, 难以适应系统功能需求复杂化、模拟任务多元耦合化的发展。对此, 提出了一种以系统结构逻辑为对象的建模方法。在构建基于面向对象技术和 Petri 网技术 (OOPN) 的结构模型基础上, 基于应用目标分析系统结构和维修任务的内在相关性, 依据功能划分模块后建立子系统 OOPN 模型, 并依据子系统之间的逻辑关联建立整体系统模型, 在此基础上引入关键部件的故障关联影响, 建立一个能涵盖系统正常、测试与故障行为的综合结构模型, 并通过关联矩阵分析模型活性。 最后, 在 A320 飞机虚拟维护训练平台中以液压油量检测和告警系统的维修任务群为例进行了仿真, 验证了该模型的有效性。 [ABSTRACT FROM AUTHOR]

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