共查询到18条相似文献,搜索用时 234 毫秒
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设备维护与管理的重要目标之一就是要提高设备效能,减少各类损失和资源浪费,提高企业的成本竞争力,为此需要对设备综合效能进行评估与测度。系统地分析了影响设备效能的六大损失,即故障停机损失,换装和调试损失,空闲和短暂停顿损失,减速损失,质量缺陷和返工损失,启动损失。针对制造加工业给出了设备综合效能水平的评估标准体系,提出了用设备综合效能指标来测度设备效能的方法。设备综合效能集成了设备有效性,设备性能和合格品率指标,反映了设备的全部生产能力,使设备维护与管理的内涵和外延都有了很大拓展,最后,用算例验证了用OEE方法的效率和信度。 相似文献
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CIMS/PIMS中设备综合效能的度量 总被引:1,自引:0,他引:1
目前,在许多CIMS应用工程示范企业中都在建立设备集成化管理系统,提出向设备管理要质量、要速度、要效益,为达到这一效果,有必要对设备效能进行评估与测试提供一种新的设备效能评估与测定方法,通过实施这一方法,可以大大地提高CIMS企业的生产效率和市场竞争能力。 相似文献
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介绍安徽地质矿产勘查开发有限责任公司通过健全组织机构,完善各项规章制度,坚持专业管理与网络管理相结合,狠抓设备技改更新,充分发挥设备效能,提高企业装备素质,为生产打下坚实基础的情况. 相似文献
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1.设备综合效率方面的问题作为TPM活动的重要管理项目,“设备综合效率”用来评价设备管理硬和软两个方面的指标.硬的方面,系统地找出阻碍设备综合效率的7大损失,分别用自主维修、计划维修和个别改善的活动进行改善,并将其效果与活动项目相结合,力图达到提高设备综合效率的目的.软的方面,用自主维修活动和计划维修体制等评价和强化企业素质,提高水平已取得共识.但是,设备综合效率不仅是为了设备管理.当做为追求有效的生产系统的重要因素时,根据笔者的体验,有如下的几个问题.①对应要求的生产量,由于操作人员对因生产节拍时间和机动循环时间之差所发生的生产线的综合效率掌握起来比较困难,亦即有必要明确操作等待状态和设备的短暂停机时间.②未使用提高计划停机和管理停机效率的指标,亦即必须把握对于操作时间的设备有效开动率指标.③对以手工作业为主体的装配线不能作出明确的评价,亦即有必要系统地建立人的作业效率和生产线效率的评价指标.④设备综合效率提高了,但向工厂的收益方面反映的少,亦即有必要明确与附加价值额和设备折旧费有关的各项经费等的关系,以及与制造成本间的关系.2.必须增加的补充指标 相似文献
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基于设备整体效能和多Agent的预测-反应式调度 总被引:1,自引:0,他引:1
生产过程中存在许多不确定性事件,其影响直接表现为生产效能方面的损失.为了减小这种影响,基于设备整体效能的角度,分析了不确定性事件对生产过程的干扰和对调度过程的影响,提出了一种基于设备整体效能的具有鲁棒性的预测调度实现方法,设计了一种基于多Agent协作机制的预测-反应式调度系统模型.仿真试验表明,该方法有助于提高调度系统抵御干扰生产的能力,增强反应式调度的应用效果. 相似文献
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郝强 《机械工业标准化与质量》2012,(9):30-33
伴随TPM模式的推广,设备综合效率(OEE)理论应运而生,OEE成为很多制造企业在衡量和提高设备综合管理水平方面的一个非常重要的指标.在铸造工艺中,铸件表面清理设备OEE的提升是铸造企业持续改进的目标之一.
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设备综合效率是最高层次的设备技术经济指标,主要内容是通过时间开动率、性能开动率和合格品率来综合反映设备的停机损失、速度损失和废品损失,使各类损失明确化,并可及时用量化的数据来描述设备管理持续开展的效果. 相似文献
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Volkan Sonmez Murat Caner Testik Ozlem Muge Testik 《The International Journal of Advanced Manufacturing Technology》2018,95(1-4):121-130
Evaluation of manufacturing equipment performance has been very important in production-related functions such as planning, scheduling, and maintenance. Nevertheless, low accuracy of performance measurements can mislead decision makers. In this study, overall equipment effectiveness (OEE) is considered as a performance indicator of manufacturing equipment. In practice, components of OEE may consist of uncertainty due to manual or semi-automatic measurement systems. As a consequence, true performance of equipment may be masked by the uncertainty of measurements. In this study, two types of uncertainty are considered in production speed and stoppage duration measurements, which are used in calculating OEE components. When the measurements have uncertainty due to use of linguistic terms or some minor stoppages, idling, or speed losses being ignored, fuzzy arithmetic is used as a method to handle uncertainty. In some low accuracy cases, best guess interval estimates of operators may better reflect the state than just providing a point estimate. For such cases, interval arithmetic is used as a method to handle uncertainty. Implementation of the methods are illustrated using two real-world examples and a software is provided for practitioners. Proposed methods help making better informed decisions using OEE under measurement uncertainty of production speed and stoppage durations. 相似文献
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混凝土拌合站设备的正常运行是拌合站混凝土生产的可靠保障,加强混凝土拌合站设备的质量管理势在必行。针对拌合设备管理的重要性,从混凝土拌合设备运行系统组成、设备的选择、故障及维修角度做了较为系统的阐述,明确了混凝土拌和站设备管理中的若干问题。 相似文献
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Automating factory performance diagnostics using overall throughput effectiveness (OTE) metric 总被引:1,自引:1,他引:0
Kanthi M. N. Muthiah Samuel H. Huang Sangeetha Mahadevan 《The International Journal of Advanced Manufacturing Technology》2008,36(7-8):811-824
The overall equipment effectiveness (OEE) metric is a powerful tool that can be used to measure performance and also perform diagnostics at the equipment level. Although important, gains made in OEE are insufficient; because the ultimate objective is a highly efficient integrated system, not brilliant individual equipment. Factory level performance monitoring and diagnostics can be facilitated by classifying the entire manufacturing system layout into unique subsystems including “series,” “parallel,” “assembly,” and “expansion.” The overall throughput effectiveness (OTE) metric is then derived for each of these subsystems. Factory level metric can be computed by synthesizing the subsystem level metrics, capturing their interconnectivity information. The objective of this paper is to present the algorithms developed to automate the factory-level performance monitoring and diagnostics process using OTE. The algorithms are implemented into a software tool called SIMPRO. SIMPRO allows factory professionals to efficiently measure performance and conduct factory level diagnostics (i.e., identify bottlenecks/hidden capacity). A glass manufacturing case study is used to illustrate automated performance diagnostics and the benefits obtained by using the approach. 相似文献
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Yiyo Kuo Kuo-Ping Lin 《The International Journal of Advanced Manufacturing Technology》2010,50(9-12):1243-1251
Overall equipment efficiency (OEE) is widely used in industry. OEE is the combination of availability efficiency (AE), operation efficiency (OE), rate efficiency (RE), and quality efficiency (QE). In general, OEE, AE, OE, RE, or QE are only calculated as part of a management consultancy exercise. In the present research, a group of washing machines from a TFT-LCD manufacturing company was used for the case study. Because AE is strongly related to the reliability of a machine, this research aims to use collected AE data for predicting the reliability of the machine. Four methods are proposed for predicting the machine’s reliability. The results show that the combination of neural networks and decision trees based on the previous eight AE values has the best performance in predicting the reliability of TFT-LCD washing machines. 相似文献
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针对攀钢能源动力中心给排水设备原采用的事后维修和计划预修等传统维修模式存在的诸多问题,本着“技术合理、经济性好、实践可行”的原则,同时结合给排水设备的自身特点,制订相应机械故障诊断策略。选取适合的诊断技术,以此推进现代化的、具有高度预知性的设备状态维修,从而增强设备运行可靠性,提高设备综合效率,降低寿命周期费用,促进维修体制变革,实现企业设备管理现代化。 相似文献
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机电设备在洗煤厂生产中占有重要的地位,科学合理的设备管理与维护是洗煤厂进行安全生产和获得经济效益的保障。分析了当前洗煤厂机电设备管理与维护方面存在的问题,并根据具体问题提出了针对性的措施。 相似文献