共查询到19条相似文献,搜索用时 375 毫秒
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现有的视情维修系统研究中缺乏对处于正常运行阶段的设备因加工过程操作不当所引起的运行故障进行预测维修。为提高柔性制造系统的使用寿命及使用效率,提出预测与健康管理视情维修的体系结构,构建柔性制造系统视情维修系统的功能框图并分析其工作流程;通过对设备运行状态信息融合,借助人工智能推理对柔性制造系统的状态监测、健康评估和故障预测方法进行了具体分析。该方案能够实现柔性制造系统故障的提前预测和剩余寿命计算,具有重要的工业推广价值。 相似文献
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介绍了一种实用的大型液压系统故障诊断方法,针对调试过程的难以判断或者难以解决的常见故障问题,做了比较详细的故障机理分析,给出了相应的故障处理措施与合理建议.这一研究对类似的大型液压系统的设计、制造、安装、调试、故障处理和维修有重要的指导意义. 相似文献
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产品生命周期数据获取技术研究 总被引:1,自引:0,他引:1
为了适应市场和环保的要求,制造企业需要获取产品生命周期各阶段的数据,为产品设计、维修和使用的辅助决策系统提供基础,以提高企业核心竞争力,但是目前产品生命周期中大部分的数据无法获取到.针对这个问题,文章分析了产品生命周期阶段及其数据的特点,归纳了主动提交、被动提交和自动获取三种数据获取方式,提出了产品全生命周期数据获取框架,该框架由数据层、数据模型层、数据传输层和数据获取层组成.在这个框架的基础上,开发成功了产品生命周期管理(Product Lifecycle Management,PLM)系统InforCenter,并应用到某造船企业中. 相似文献
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现有的视情维修系统研究中,缺乏对处于正常运行阶段设备,因加工过程操作不当所引起的运行故障进行预测维修,为提高数控设备的使用寿命及使用效率,提出了预测与健康管理视情维修的概念,构建了数控设备视情维修系统,基于物理模型的方法对齿轮箱进行故障诊断/预测,提出PHM视情维修关键技术的具体实施方案,该方案能够实现大型数控设备故障... 相似文献
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介绍了地铁设备计算机的维修管理系统。分析了国内地铁设备传统维修管理系统在设备前期管理、备件管理、维修管理以及计算机应用等几个方面存在的问题。阐明了中心数据库和方法模型库是地铁设备维修计算机管理系统的重要组成部分,详细介绍了地铁设备维修管理系统的主要方法。其中包括维修决策建模和优化、维修过程建模和优化、故障诊断、故障预测和备件采购决策模型,总结出地铁设备维修管理系统应该包括:设备管理、预防性维修计划、工单管理、维修预算和报表分析等功能模块,由此确保地铁设备能够正常运营。 相似文献
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针对数控设备现有保障模式存在的过剩维修和维修不足的问题,分析了研究数控设备自主式保障的重要意义。为使自主式保障系统运转,必须有一个启动信号,设备中的故障预测与健康管理系统正是激励自主式保障系统自发响应的核心部件。通过对数控设备智能保障系统的研究、设计,介绍其实现的关键技术及方法。 相似文献
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探讨了数字化技术在医疗设备生命周期管理中的应用,主要阐述了数字化技术如何提高医疗设备的可靠性和效率,减少维修成本,从而提高医疗服务的效率和质量。分析了数字化技术在医疗设备生命周期管理中的应用情况和重要性,包括医疗设备监测、维护、保养等方面所需的完整平台的作用,同时介绍了数字化技术的发展趋势和相关应用案例。 相似文献
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设备故障诊断技术能实现设备在带负荷运行不停机的情况下,通过使用先进的技术手段,对设备状态参数进行监测和分析,判断设备是否存在故障,故障的部位和原因,以及故障的劣化趋势,以确定合理的检修方案和检修周期。这门技术的出现,使设备维修体制由传统的事后维修和预防维修方式逐步改变为状态维修,由于减少了事故停机损 相似文献
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Today, a new role for maintenance exists to enhance the eco-efficiency of the product life cycle. The concept of “life cycle maintenance” emerged to stress this role leading to push, at the manufacturing stage, an innovative culture wherein maintenance activities become of equal importance to actual production activities. This equivalence requires mainly considering the integration of the maintenance and production strategy planning for developing opportunistic maintenance task keeping conjointly the product - production - equipment performances. In this paper, a novel approach is proposed for integrating maintenance and production planning. The approach uses the “odds algorithm” and is based upon the theory of optimal stopping. The objective is to select, among all the production stops already planned, those which will be optimal to develop maintenance tasks keeping the expected product conditions. It combines criteria such as functional performance and component reliability. Approach feasibility is shown on a practical example. 相似文献
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Maintenance: Changing Role in Life Cycle Management 总被引:1,自引:0,他引:1
As attention to environmental problems grows, product life cycle management is becoming a crucial issue in realizing a sustainable society. Our objective is to provide the functions necessary for such a society while minimizing material and energy consumption. From this viewpoint, we should redefine the role of maintenance as a prime method for life cycle management. In this paper, we first discuss the changing role of maintenance from the perspective of life cycle management. Then, we present a maintenance framework that shows management cycles of maintenance activities during the product life cycle. According to this framework, we identify technical issues of maintenance and discuss the advances of technologies supporting the change in the role of maintenance. 相似文献
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Jay Lee 《International Journal of Machine Tools and Manufacture》1998,38(8):901-910
This position paper introduces the concept and framework of a teleservice engineering system for the life cycle support of manufacturing equipment and products. The proposed system involves the fundamental methodologies that deal with machine performance assessment techniques, self-maintenance machine mechatronics, and remote diagnostics. In addition, a concept on digital service enterprise will be introduced. These methodologies will support remote users and facilities to ensure the performance of consumer products, manufacturing equipment, quality of operations, and productivity of the plant, in particular, for those users and facilities located in remote locations. Finally, research challenges and opportunities are discussed. 相似文献
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To realize closed loop manufacturing, it is essential to design product life cycles and to plan life cycle processes property. Life cycle simulation has been recognized as an effective tool in this direction. In this paper, we present a life cycle simulation system developed as a general tool for life cycle design and management. The system includes functions for modelling and controlling each life cycle process in a flexible manner. The system maintains usage history of products and parts independently taking the reuse of parts into account. Examples of the simulation are shown for both a rapid life cycle scenario and for a part sharing scenario over the product generations. 相似文献
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Yasushi Umeda Shozo Takata Fumihiko Kimura Tetsuo Tomiyama John W. Sutherland Sami Kara Christoph Herrmann Joost R. Duflou 《CIRP Annals》2012,61(2):681-702
Life cycle engineering (LCE) is a key concept for promoting environmentally sustainable practices among manufacturing firms. A major hurdle in the implementation of LCE is the lack of a systematic and strategic method to design or plan an entire product life cycle. To address this issue, this keynote provides a framework for life cycle development and proposes the concept of life cycle planning. This paper aims to provide explicit and systematic methodologies for life cycle planning by reviewing this research area. Practical cases that employ life cycle planning are also illustrated. Finally, some research directions are suggested. 相似文献
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In this paper will be presented an ongoing research into the functional integration of maintenance within the product life cycle, based on experience obtained from work undertaken relating the integration of maintenance with production planning. Taking into account the needs of both production planning and maintenance systems, a planning and control model, called a productive services module (PSM), was developed. This module is able to manage the maintenance and production functions while also accommodating the product reliability forecasting, as an important input. The new model under development integrates the history of production failures and its use is extended to life cycle management of the production equipment. 相似文献
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以某制造型企业生产设备管理研发需求为背景,在对设备整个寿命周期管理现状进行详细调研和分析的基础上,识别其核心业务流程,并根据企业实际情况进行业务流程再造,应用复合建模技术进行了系统建模,并采用分层设计和可视化编程技术开发了系统程序。测试结果表明:采用该系统实现了对生产设备整个寿命周期的管理。 相似文献