摘要
针对高速动车组在全生命周期中对RAMS性能持续优化的现实需求,构建以“需求-设计-验证-运维”闭环为核心的RAMS设计优化理论框架。该框架以需求驱动为起点,融合模型驱动系统工程(MBSE)、数字孪生与PHM系统,形成跨阶段协同的RAMS指标动态迭代机制。研究开发多学科集成设计平台,实现关键部件的可靠性分配、安全性验证与可维护性设计协同优化,建立物理-虚拟融合的验证体系及数据驱动的智能运维系统。结果表明,该框架能够解决传统设计各阶段割裂、动态反馈不足的问题,为高速动车组的高效运维与持续改进提供理论依据与技术路径。
In view of the practical demand for continuous optimization of RAMS performance throughout the full life cycle of high speed EMUs,this paper constructs a theoretical framework for RAMS design optimization centered on a closed loop of“demand-design-verification-O&M”.The framework takes demand-driven as the starting point,integrates model-based systems engineering(MBSE),digital twin,and PHM systems,and establishes a dynamic iterative mechanism for RAMS indicators with cross-stage collaboration.A multidisciplinary integrated design platform has been researched and developed to achieve collaborative optimization of reliability allocation,safety verification,and maintainability design of key components,and establish a physical-virtual fusion verification system and a data-driven intelligent O&M system.The results indicate that this framework can address the issues of fragmented traditional design stages and insufficient dynamic feedback,providing a theoretical basis and technical path for efficient O&M and continuous improvement of high speed EMUs.
作者
陈哲
夏清
李永华
陈秉智
陆航
CHEN Zhe;XIA Qing;LI Yonghua;CHEN Bingzhi;LU Hang(Zhan Tianyou College(CRRC College),Dalian Jiaotong University,Dalian Liaoning 116028,China;School of Mechanical Engineering,Dalian Jiaotong University,Dalian Liaoning 116028,China;Locomotive&Car Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China)
出处
《铁路技术创新》
2025年第3期131-139,共9页
Railway Technical Innovation
基金
国家自然科学基金面上项目(52271023)
辽宁省教育厅科技创新特色项目(JYTMS20230002)
国家重点研发计划资助项目(2022YFB4301105)。
