OEE分析在结构件厂生产中的应用

通过对设备综合效率(OEE)的研究,把精益生产的技术和方法应用到动臂、斗杆的生产线上,对其关键工序,物流走向、工段管理等进行分析。通过OEE工具的应用,暴露出生产现场存在的问题,挖掘提升设备效率的方法,进行针对性的改善,达到企业车间产能优化的目的。     

OEE多维数据分析系统的应用研究

针对生产领域中重要效率评价指标OEE,研究如何用多维的思路和方法来分析.结合OEE的定义、多维分析基本思想,以及当前各类OEE分析软件特点的基础,为实现对海量多维生产数据准确、高效、灵活的分析,提出一种OEE多维数据分析系统.讨论了多维数据分析技术在OEE数据分析系统的研究和应用的设计过程,并对基于Excel VBA开发的OEE多维数据分析系统进行实证研究.     

卷包机组设备效率评价指标体系的设计与实现

目的 针对烟草行业常见设备卷包机组,提出一种结合OEE的设备效率评价体系,实现对卷包机组设备运行状态的精确、实时、具体的反映.方法 通过分析离散制造与连续制造的差异,在传统离散制造OEE方法基础上,针对连续生产进行适应性改进,提出一套针对卷包机组的设备效率评价指标;在此基础上,通过分析卷包机组各运行单元结构特点,提出一套实时采集设备状态数据与动态分析效率状态的卷包机组设备效率评价体系.结果 将此体系部署于湖北中烟某车间6台卷包机上6个月进行实验验证,结果显示在该体系的支持下,设备净效能平均同比增长7.72％,证明本效率评价结果可以精准、全面、实时地反映设备运行情况和状态背后的影响因素,有助于提升卷烟机组设备效率.结论 文中提出的卷包机组设备效率评价指标体系使用户可以针对性、快速地调整设备运行状态,实现了精准管理,提高了生产作业效率,具有实际的推广价值.     

复合机铝箔换卷中的速度损失研究

目的减少铝箔复合机换卷时的速度降幅及变化,改善降速换卷中容易断幅的问题,从而提高设备的综合效率(OEE)。方法通过对实验数据的5W1H和张力分析,建立复合机铝箔换卷时铝箔张力的动力模型,探讨了张紧辊张力、压辊压力、铝箔偏心度、运动离心力方向角和速度差等影响铝箔张力的因素,并对实际操进行了实验改进。结果铝箔在换卷时速度变化得到改善,改善了断幅的问题。结论调整影响铝箔张力等一系列因素,综合效率(OEE)达到92.1%,提高了生产效率。     

太阳能电池生产系统中设备综合效能研究

讨论了现有太阳能电池生产系统改进的一个实例.OEE已作为制造企业单台设备运行绩效的一种测量指标,并以此提高该设备的效能.在生产系统中测量一台设备的效能显然是不够的.结合OEE、OTE和TOC理论来分析由多台设备组成的太阳能电池生产系统.在此生产系统中,先计算OTE和OFE的值,并以此确定该系统的瓶颈.通过瓶颈分析,提出5种可行的解决方案来改进生产系统.采用WTTNESS软件建模仿真,发现其中的1种方案能使该生产系统的效能显著提高.     

单机设备OEE数据分析模型的建立

将OEE分解成时间利用率、设备性能率和产品合格率三大指标,将六大损失归类到三大指标中,再针对六大损失的末梢因素进行原始数据的采集,并应用现代化的分析工具进行数据分类控制,以帮助企业找到提高OEE的途径.     

确保所有流程要素的最优连结

对于任何一家设备运营方来说，让所有设备达到最优绩效和最大生产能力都具有至关重要的意义。就像运动员会与教练共同努力持续提升自己的成绩一样，制造公司也可以在服务专家的帮助下，提升其产品的设备综合效能（0EE）。一种可能的方法是展开OEE关键绩效指标分析，这些指标用于查明优化生产过程所具有的潜力。为了确保设备发挥出全部能力，OEE专家需要与客户成为合作伙伴并展开协作，因为成功的关键在于双方联合专业知识的最优运用和调校。     

浅论机电设备维修与管理

设备维修是确保设备正常运行的主手段,设备不仅是企业固定资产的重组成部分,也是一个企业技术装备水平的标志,是企业赖以正常生产经营和参与市场竞争的物质技术基础。设备管理又称设备工程,是以提高设备综合效率,追求寿命周期费用经济性,实现企：止生产经营目标为目的,运用现代科学技术、管理理论和管理方法对设备寿命周期（规划、设计、制造、购置、安装、调试、使用、维护、修理、改造、更新到报废）的全过程。为使保持生产持续,使设备经常处于良好技术状态,保证产品质量和设备安全运行,促进生产的持续发展为提高企业经济效益和社会效益服务。     

真空镀膜机的设备综合效率计算方法研究

设备综合效率被企业越来越多导入经营运行管理中,作为企业生产管理重要指标之一。企业在导入设备综合效率时应具体结合企业本身的特点,适当地修改设备综合效率计算方法,明确地定义各时间损失及责任部门,使之在企业中更具有可操作性。能快捷,清楚地找到影响设备综合效率的各种时间损失,从而使得设备综合效率有效地提高。     

综采放顶煤工作面高效收尾技术

综合机械化放顶煤工艺是衡量矿山安全生产技术发展水平的重要准则,此工艺的采用提高了煤矿煤炭生产效率,改善煤矿安全生产水平,增加企业经济效益,然而综采工作面收尾时设备搬迁,费工费时,不仅影响设备效率的充分发挥,而且直接影响煤矿单产和效率的提高,是综合机械化放顶煤工作面提高经济效益的一个突出障碍。     

Performance measurement using overall equipment effectiveness (OEE): literature review and practical application discussion

The quest for improving productivity in the current global competitive environment has led to a need for rigorously defined performance-measurement systems for manufacturing processes. In this paper, overall equipment effectiveness (OEE) is described as one such performance-measurement tool that measures different types of production losses and indicates areas of process improvement. Analysis is done on how OEE has evolved leading to other tools like total equipment effectiveness performance, production equipment effectiveness, overall factory effectiveness, overall plant effectiveness, and overall asset effectiveness. Two industrial examples of OEE application are discussed, and the differences between theory and practice analysed. Finally, a framework for classifying and measuring production losses for overall production effectiveness is proposed. The framework harmonizes the differences between theory and practice and makes possible the presentation of overall production/asset effectiveness that can be customized with the manufacturers needs to improve productivity.     

Improving overall equipment cost loss adding cost of quality

This research has the objective of improving indicators for evaluating losses of equipment. It also proposes a newly developed computing methodology for estimating the quantitative losses in monetary unit. The presented methodology is to calculate losses following overall equipment effectiveness (OEE) consisting of opportunity and production cost losses and also from cost of quality (COQ) approaches. This method eliminates some of OEE's weaknesses and expands scope from overall equipment cost loss (OECL). The proposed calculating methodology is demonstrated by applying to a real manufacturer of equipment. This newly improved model can prioritise problematic equipment more appropriately than OEE and OECL.     

Optimizing OEE,productivity and production cost for improving sales volume in an automobile industry through TPM: a case study

The aim of this paper is to investigate how increase in sales volume has evolved by improving overall equipment effectiveness (OEE) of machines, plant productivity and production cost through total productive maintenance (TPM) initiatives in a reputed tractors manufacturing industry in India. In the present scenario of global competitive market, the manufacturing industry needs to improve their operational performance for surviving and prospering. TPM is practised by industry as a business tool for rapid and continuous improvement in its manufacturing capabilities. OEE offers a powerful control tool to overcome production deficiencies and operational performance constrains. Productivity and manufacturing cost are also crucial operational measures to analyse the manufacturing performance. In this study, evaluation and analysis of the methodology adopted for improving sales volume through TPM initiatives was carried out using an interactive research approach. The industrial example on the application of OEE tool demonstrates that it has a remarkable potential to enhance the equipment effectiveness. The empirical findings of the study reveal that augmented OEE and productivity, and reduced production cost resulted to double the sales revenue and triple the profit within a period of three years. The industry also achieved notably tangible and intangible benefits with the TPM implementation.     

Stochastic overall equipment effectiveness

This article focuses on the overall equipment effectiveness (OEE), a key performance indicator typically adopted to support Lean Manufacturing and Total Productive Maintenance. Unfortunately, being a deterministic metric, the OEE only provides a static representation of a process, but fails to capture the real variability of manufacturing performances. To take into account the stochastic nature of the OEE, an approximated procedure based on the application of the Central Limit Theorem is presented: the OEE is considered as a stochastic random variable and its probability density function (pdf) is generated through the aggregation of the pdf of the basic causes of waste. Notwithstanding its approximated nature, the procedure can be applied in most practical cases, since the accuracy is assured provided that the average OEE is lower than 90% and the variability of the losses is high. The validity of the approach has also been confirmed by an industrial application included in this article. The results obtained demonstrate that the stochastic OEE can help in battling variation, for it allows one to identify the hidden losses that account for most of the variability and to estimate the impacts of potential corrective actions in terms of both efficiency and efficacy.     

设备管理及监控的应用案例分析

以大型半导体制造企业为应用背景,应用在线设备监测系统TFM,对生产中心的生产设备运作信息进行实时集成和同步反馈,实现设备运行状态数据的显示、设备维护计划的查询和决策、设备生产效率的比较分析。把反映生产设备运行状态的动态数据提炼为形象直观的分析图形,实现可视化信息管理,提高生产中心现场设备管理水平。