需求驱动的高速列车精细设计过程智能映射研究

Many achievements have made in innovative development of Chinese high speed railway vehicle. More and more personality and diversification railway vehicle are needed with the market opening to home and overseas. But the present development platform and mode are difficult to adapt for the market requirement based on some obvious shortcoming of sharing, accumulation, re-use of design knowledge and leaning design, which are necessary to be resolved. Here presents the idea of requirement driven intelligent mapping of leaning design process for high speed railway vehicle. First, from the beginning of collection, classification and analysis of personality and diversification requirement, its relationship with design indexes, utilize the method of leaning design, sum up and investigate deign knowledge distributed in the design process, construct these leaning models of requirement meta-model, product meta-model and procedure meta-model, all of which are based the meta-product construct tree and are associated with engineering BOM; Extending BOM to the beginning of design, requirement stage is present, XBOM are used to describe the engineering design model and are transferred to EBOM. To driven the design process, in which requirement combined with design indexes are the main target and are divided into each design stage, some multi-stage agents are researched and developed. They help mapping these requirement or design indexes into different design division stage and help design iteration and feedback. All of these are practiced by using the technologies of modularization, instantiation and parameterization and finally realize the leaning design of high speed railway vehicle, support the innovative development of high speed railway vehicle.

针对我国高速列车多样化、个性化、走出去的研制需求，以及研发过程中存在的设计知识共享、积累、重用和精细化设计中存在的亟待解决的问题，提出需求驱动的高速列车精细设计过程智能映射思路，通过从研究高速列车的个性化、多样化需求聚类与顶层设计指标的关联关系开始，采用精细化研发理念，归纳和总结整个设计过程的设计知识，进行基于元结构树的产品需求元模型、产品元模型和过程元模型的精细研发模型表达，并与工程BOM关联，提出将BOM延伸到产品的需求端形成XBOM的工程设计模型，并向EBOM过渡；采用多智能体驱动设计进程的技术手段，将需求贯穿到整个设计过程，使需求和顶层指标关联起来，并逐层映射到各研发环境中，从而驱动设计过程智能映射；采用模块化、实例化、参数化作为技术实现手段进行配置、变型设计，从而有效实现高速列车个性化、多样化产品的快速、精细化设计，探索我国高速列车创新研发新理论、新技术。

针对我国高速列车多样化、个性化、走出去的研制需求，以及研发过程中存在的设计知识共享、积累、重用和精细化设计中存在的问题，本项目提出了需求驱动的高速列车精细设计过程智能映射思路。主要研究内容包括：高速列车基于元模型的精细研发模型表达、面向需求的多层级驱动映射模型构建、设计过程映射的智能体表达及驱动、高速列车精细化设计系统原型开发及验证。研究工作取得了如下成果：.1）提出了基于元模型理论的高速列车精细研发模型表达方法。研究了需求元模型、产品元模型的定义及描述方法，以高速列车元结构树为核心，从元类-类-实例三个层面构建了高速列车各模块的需求元模型、产品元模型，实现高速列车模块的静态参数模型表达，为需求驱动的快速定制提供数据基础。.2）提出了高速列车设计过程基于过程元模型的表达方法。研究了过程元模型的定义及表达方法，以及过程元模型与需求元模型、产品元模型的关联关系，构建了由项目、任务、活动组成的高速列车设计过程元模型，形成了驱动高速列车定制设计的工作流模型。.3）提出了一种客户需求-技术指标-配置参数-设计模型的多层级驱动映射模型。分析高速列车客户需求特点及其设计过程，提出多层级驱动映射的设计方法，将需求自顶向下贯穿在逐级映射的产品设计模型中。基于逐级映射的规则知识，构建了支持设计任务求解的智能体，作为各阶段映射的驱动模型。.4）开发了高速列车精细化设计系统原型。以基于元模型的产品数据建模、需求驱动的多层级映射过程为指导，采用B/S架构开发了高速列车总体和主要组份的方案定制设计和技术设计系统原型，实现了多样化需求驱动的高速列车定制设计。.在本项目的资助下，项目组成员发表SCI论文6篇，EI论文2篇，中文核心期刊4篇；出版专著1部；申请发明专利及软件著作权各1项；培养博士研究生3名，硕士研究生7名。项目达到了预期目标。