Modeling method for design of diesel engine system based on MBSE

doi:10.11996/JG.j.2095-302X.2024020355

Abstract

Abstract:

With increasing demands for power systems in national defense weapons and equipment, the complexity of diesel engine systems has increased sharply. Traditional document-based system engineering methods can no longer effectively meet the efficient, accurate, and reliable development requirements of diesel engines. Therefore, model-based system engineering (MBSE) methods have been introduced into the diesel engine development process. This paper proposed a diesel engine system modeling process based on requirements-function-logical-physical (RFLP) and MBSE, as well as a diesel engine model system supporting the operation of this process. Based on this, the paper utilized a diesel engine development task as an example, and took the model as the core, providing the MBSE system modeling process and its model examples. The modeling of diesel engine requirements analysis, diesel engine function modeling, and diesel engine system architecture analysis and synthesis were elaborated. This demonstrated the advantages of the model-based design method in early verification of requirements, rapid simulation of functions, and data traceability in the diesel engine development process, thereby effectively enhancing R&D design efficiency.

Key words: diesel engine, MBSE, system modeling, model system, modeling methods

CLC Number:

TP391

MA Yanli, ZHANG Jizhong, HAO Jibin, LIANG Wei, LI Xiuchun. Modeling method for design of diesel engine system based on MBSE[J]. Journal of Graphics, 2024, 45(2): 355-362.

Figures/Tables 13

References 13

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模型名称	模型实现功能
需求模型	1) 整理利益相关者，进行顶层任务需求捕获工作，构建基本的设计约束 2) 配合模型精化，基于顶层需求，逐级分解为更下层的系统需求、分系统需求、组件需求 3) 构建需求追溯关系以及满足度分析
功能模型	1) 表述功能性目标，结合用例进行黑盒分析 2) 描述柴油机和整车之间存在的接口关系，构建关于需求、功能之间的可追溯关系 3) 描述柴油机功能构成、功能分配及层级关系 4) 描述柴油机功能实现方式
架构模型	1) 描述不同分系统的接口，构建上下文联系 2) 描述分系统动态行为、时序关系等 3) 明确逻辑组成，还有不同分系统的信息交换关系
性能模型	1) 描述产品在结构、流体、控制、电磁、声学、传热等学科特性 2) 实现产品性能分析与验证
物理模型	1) 描述分系统各组件的配套信息 2) 构建产品结构参数与设计约束的可追溯关系 3) 构建各组件在分系统中的逻辑组成关系
工艺模型	1) 定义产品在机械等层面的实施方式 2) 明确产品制造工艺与指标，支撑虚拟加工、虚拟装配

模型名称	模型实现功能
需求模型	1) 整理利益相关者，进行顶层任务需求捕获工作，构建基本的设计约束 2) 配合模型精化，基于顶层需求，逐级分解为更下层的系统需求、分系统需求、组件需求 3) 构建需求追溯关系以及满足度分析
功能模型	1) 表述功能性目标，结合用例进行黑盒分析 2) 描述柴油机和整车之间存在的接口关系，构建关于需求、功能之间的可追溯关系 3) 描述柴油机功能构成、功能分配及层级关系 4) 描述柴油机功能实现方式
架构模型	1) 描述不同分系统的接口，构建上下文联系 2) 描述分系统动态行为、时序关系等 3) 明确逻辑组成，还有不同分系统的信息交换关系
性能模型	1) 描述产品在结构、流体、控制、电磁、声学、传热等学科特性 2) 实现产品性能分析与验证
物理模型	1) 描述分系统各组件的配套信息 2) 构建产品结构参数与设计约束的可追溯关系 3) 构建各组件在分系统中的逻辑组成关系
工艺模型	1) 定义产品在机械等层面的实施方式 2) 明确产品制造工艺与指标，支撑虚拟加工、虚拟装配