产品全生命周期数据自动采集PEID研制

为了实现产品使用、维护乃至生命结束阶段数据的自动、有效采集,在简要介绍产品嵌入式信息设备(Product Embedded Information Device, PEID)概念、类型、功能和参考架构的基础上,利用UML(Unified Modeling Language)对PEID组件进行建模、分析,设计并实现了PEID.最后,结合低温等离子体设备系统为具体应用实例,以本地监控站软件和数据服务器作为PLM(Product Lifecycle Management)代理测试验证了所设计PEID的可行性和实用性,能够实现产品生命周期数据的正确收集和传输,为闭环PLM系统提供数据支持.     

Computer-aided embodiment design through the hybridization of mono objective optimizations for efficient innovation process

Current product lifecycle management (PLM) systems properly support the development of a product from the embodiment design stage to detail design and manufacturing phases; on the contrary, marginal support is provided to the earliest stages of conceptual design. Besides, the front end of product development is supported by an emerging technology, namely computer-aided innovation systems (CAI), which nevertheless are still poorly integrated with the following phases of the design process. The paper presents an original computer-based approach aimed at supporting embodiment design phases, which results very efficient for improving the interoperability of CAI and PLM systems and thus at extending the domain of application of these tools. The potential of the approach proposed by the authors is clarified through three exemplary case studies.     

面向MTM的服装企业PLM系统研究

针对大规模定制生产模式下服装企业MTM订单无法实时处理、生产效率低、产品不能很好的符合客户需求等问题,分析了MTM、PLM的基本思想和方法及MTM生产模式对PLM系统的要求,根据某服装企业实际应用产品全生命周期管理系统的实际过程,对如何在MTM生产模式下运用PLM技术进行了研究。实践表明,应用此系统后使该服装企业缩短了服装产品制造周期,降低了生产成本,加快了产品交货时间,提高了企业的生产效率。     

基于PLM的产品维修性设计分析管理解决方案

探讨了维修性设计分析的信息需求,建立了维修性设计分析的ER模型,在此基础上重点讨论了PLM平台下开展维修性设计分析活动的解决方案,主要包括四个方面:在PLM平台下配置维修性设计分析环境;建立基于产品结构树的维修性信息主模型;维修性设计分析工具与PLM平台的集成;基于PLM项目协同和工作流对维修性设计分析流程进行管理和控制.最后选取典型的PLM平台Teamcenter系统,以某型舰炮研制阶段的维修性设计分析活动为例进行了应用研究.     

Application of power law model in reliability evaluation of machine tools by considering working condition difference

The influence of working condition difference has not been considered in the traditional reliability modeling of numerical control (NC) machine tools. To solve the problem, a reliability evaluation method based on mixture variable parameter power law model (MVPPLM) is proposed in this study. First, the scale parameter of the PLM is obtained by multi‐dimensional exponential distribution. Second, a proportional relation of failure rate function between each working condition and reference working condition is established. The proportion coefficient is solved using the partial likelihood function. Working condition factors with a significant influence on reliability levels are selected through the chi‐squared test. Third, reliability evaluation models under different working condition levels are established through mixture distributions. The mixture weight coefficient is calculated by the standard deviation of working condition covariates. The maximum likelihood estimation method is used to estimate parameters. Finally, results of a case analysis based on the data of NC machine tools in the user field tracing test show that the MVPPLM has higher precision than the traditional method. Therefore, reliability evaluation that considers working condition difference is valuable for engineering application.     

PDM系统安全体系模型研究

PLM必然是PDM的发展趋势，为此研究了基于PLM理念下PDM系统的安全体系模型．重点讨论了网络层的安全管理模型和设计平台层上的基于角色的用户权限管理，有效地保证了企业产品信息安全使用。     

绿色制造模式下的PLM及其关键技术研究

PLM(产品全生命周期管理)系统是制造业信息化的发展趋势,是制造业中增长最快的IT应用系统.绿色制造是人们为了协调制造业发展和人类生存环境之间的关系,而提出的先进制造模式.作者针对它们各自的优势和特点,用系统化、集成化的方法,探讨了绿色制造模式下的PLM系统的实施体系模型及其关键技术.     

基于PLM的任务管理模型研究

任务管理是PLM系统中实现项目管理和流程控制的重要机制,通过分析基于产品结构的任务管理模型的缺点与不足,根据任务管理的目标和一般过程,提出了一种以任务为中心的任务管理模型,并结合TeamcenterEnterprise4.0,给出了企业任务分配流程的实例。     

产品全生命周期管理(PLM)技术研究

结合现代企业生产现状和未来发展趋势,讨论了PLM的技术定位,论述了建立PLM系统的关键技术及其解决方法,结合现代企业的网络运行模式,建立了基于C/S和B/S相混合的体系结构,最后介绍了实现PLM的常用途径。本文论述的PLM解决方案对开发企业级或广义企业级PLM系统具有参考价值。     

产品生命周期管理(PLM)技术研究

产品生命周期管理(PLM——Product Life Management)技术是一种新的电子商务解决方案，本文阐述了其体系结构和功能，认为在软件开发设计的过程中应该充分应用目前被人们推崇的软件重用技术，采用构件的思想，以提高产品开发的整体效率，保证开发品质，提高软件应用中的稳定性，易维护性。