通过提高维修在设备全寿命周期中的作用实现可持续制造

为了实现可持续制造,必须有一个系统的、全局的维修概念,让维修贯穿于设备生命周期的各个阶段.文中详细讨论了维修在设备生命周期中的作用,对设备全寿命周期中的各个阶段(如设计、原材料和设备的购买、组装、启用和运行、报废和更换等)常见的问题和故障进行了分析,详细论述了维修是如何预防这些故障和问题,从而实现可持续制造.     

柔性制造系统(FMS)故障预测与健康管理视情维修系统研究

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。     

地铁设备维修管理系统及其运营管理功能

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。     

大型数控设备故障预测与健康管理视情维修系统

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...     

大型数控设备故障预测与健康管理自主式保障系统

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。     

基于Agent的网格制造

制造网格集成了产品全生命周期内各个相关设计制造资源、各种流程和知识等信息,是现代集成制造系统发展的平台和支撑环境。为最终实现网络虚拟环境上的资源共享和协同工作,实现面向产品全寿命周期集成提供了有效的解决思路。本文介绍了制造网格的概念、组成及其特征,给出了网格技术在制造业中的应用模式和预期效果。并讨论了基于多Agent系统实现制造网格的方法、关键问题及使能技术。     

一种大型液压系统的故障机理分析与处理

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.     

冲模的检测与维修

总结了工作中的经验，详细论述了冲压模具在制造过程中应注意的问题及检测与维修的内容。     

产品生命周期数据获取技术研究

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.     

基于B/S模式的液压系统远程维修保障系统

提出了将虚拟仪器技术和网络技术应用于工程装备液压系统的远程故障检测、诊断与维修系统中，介绍了该系统的功能结构和软、硬件组成。讨论了远程维修保障系统实现的关键技术问题，分析了其在工程装备液压系统维修中的应用实例。实际应用表明，该系统可大大提高液压系统的故障检测、诊断与维修保障能力。     

‘Odds Algorithm’-based Opportunistic Maintenance Task Execution for Preserving Product Conditions

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.     

Maintenance: Changing Role in Life Cycle Management

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.     

Teleservice engineering in manufacturing: challenges and opportunities

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.     

数字化交付在连铸工程建设及生产中的应用

为实现某钢厂连铸的智能制造转型升级,解决原先蓝图交付中信息割裂、查询和使用困难,信息无法向全生命周期延伸等问题,采用了全新的数字化交付模式。分析了数字化交付的特点,整理了数据中心的数据类型,明确了交付需要建立的标准,规范了数字化交付需要建立的流程,确定了数字化交付的功能范围。通过数字化交付可为工程公司提升协同工作能力,并加速其向全生命周期服务提供商的角色转变;为生产企业建立数字资产,促进工厂数字化运营系统及实现智能制造的快速发展。     

PA端子板弯曲冲裁级进模的维修与改进

针对PA端子板弯曲冲裁级进模在使用过程中遇到的废料翻料和弯曲回弹等问题,对模具的结构进行了分析和合理改进,实现对翻料做到可防,对回弹做到可调可控,同时在新模具制造时,优化了模具材料的选用,在提高模具使用寿命、延长模具维修周期、提高生产效率、稳定制件质量方面进行有效探讨,对类似精密模具相应问题的解决有参考价值。     

Life Cycle Simulation System for Life Cycle Process Planning

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.     

Toward integrated product and process life cycle planning—An environmental perspective

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.     

Development of a Productive Service Module Based on a Life Cycle Perspective of Maintenance Issues

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.     

基于复合建模的生产设备寿命周期管理系统研发

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。