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2018 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM)最新文献

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Improved Lease-oriented opportunistic Maintenance for Two-machine One-buffer System under Product-service Paradigm 产品服务范式下两机一缓冲系统面向租赁的机会维护改进
Wenyu Guo, Tangbin Xia, Guojin Si, B. Sun, E. Pan
With the development of the product-service paradigm, a manufacturing system consists of degradation machines and buffers between them begins to be leased in the practical industry. The leasing profit opportunity (LPO) policy is thus extended to optimize preventive maintenance (PM) actions for this type of two-machine one-buffer system. During the LPO procedure, each machine’s PM time point is dynamically scheduled by minimizing the cost rate. Moreover, one machine’s PM can create a maintenance opportunity for the other because of the relationship of the series structure. Taking the buffer level and different kinds of maintenance cost into consideration, the improved LPO policy evaluates the leasing profit savings to decide whether to take the PM opportunity and execute an Early PM for the other machine. The effectiveness of this improved LPO policy is validated through a case study and the comparison with two traditional policies has been provided.
随着产品-服务范式的发展,由退化机组成的制造系统在实际工业中开始出现退化机之间的缓冲。因此,将租赁利润机会(LPO)策略扩展到优化这类双机一缓冲系统的预防性维护(PM)行动。在LPO过程中,通过最小化成本率来动态调度每台机器的PM时间点。此外,由于系列结构的关系,一台机器的PM可以为另一台机器创造维护机会。改进后的LPO策略考虑了缓冲级别和不同类型的维护成本,通过评估租赁利润节省来决定是否抓住PM机会并对另一台机器执行早期PM。通过案例分析验证了改进后的LPO政策的有效性,并与两种传统政策进行了比较。
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引用次数: 3
Lean, Simulation and Optimization: The Case of Steering Knuckle Arm Production Line 精益、仿真与优化:以转向节臂生产线为例
Hongying Shan, Yu Yuan, Yanxiang Zhang, Lina Li, Chuang Wang
This paper studies the application of simulation software and integrates system simulation technology and lean theory. Based on the abstract entity of the knuckle arm line, the existing production line simulation model is established by Flexsim simulation software. We use the theory of production line balance to analyze production line through the process–'modeling simulation-improvement and optimization-modeling simulation'. Exerting lean theory, we explore the process which analyzes and solves problems through simulation software. This line is improved by ECRS principle. The results show that the improvement effect is significant. This paper provides method of reference and practical basis for doing the improvement and simulation optimization of production lines.
本文研究了仿真软件的应用,将系统仿真技术与精益理论相结合。基于关节臂生产线的抽象实体,利用Flexsim仿真软件建立已有的生产线仿真模型。运用生产线平衡理论,通过“建模仿真-改进优化-建模仿真”的过程对生产线进行分析。运用精益理论,通过仿真软件探索分析和解决问题的过程。采用ECRS原理对该线进行了改进。结果表明,改进效果显著。本文为生产线的改进和仿真优化提供了参考方法和实践依据。
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引用次数: 3
Assessing the Agility of Teams within Mechatronic Product Development 评估机电产品开发团队的敏捷性
L. Becerril, C. Hollauer, U. Lindemann
Although agile development is increasingly being applied outside software development, the methods, tools and techniques are still new to the manufacturing industry. A major barrier is the difficulty to measure the benefits and limitations. Comparing the working practices of a team before and after implementing agile methods would provide some insights into the applicability and usefulness of concrete methods and tools in the context of mechatronic-product development. Nevertheless, existing agility assessment approaches are subjective, software centered, and/or require previous application of agile methods. The goal of this paper is to provide a holistic assessment of a team’s agility independently of the methods, tools and techniques applied. For this purpose, agile, non-agile and hybrid practices provide a frame of reference to characterize how teams work across 12 project processes (e.g. project monitoring) and five levels of agility.
尽管敏捷开发越来越多地应用于软件开发之外,但其方法、工具和技术对制造业来说仍然是新的。一个主要障碍是难以衡量效益和局限性。比较团队在实施敏捷方法之前和之后的工作实践,可以对具体方法和工具在机电产品开发环境中的适用性和有用性提供一些见解。然而,现有的敏捷性评估方法是主观的,以软件为中心的,并且/或者需要之前应用敏捷方法。本文的目标是提供一个独立于所应用的方法、工具和技术的团队敏捷性的全面评估。为此,敏捷、非敏捷和混合实践提供了一个参考框架,以描述团队如何跨12个项目过程(例如项目监控)和5个敏捷级别进行工作。
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引用次数: 0
A Local-branching Heuristic for the Best Subset Selection Problem in Linear Regression 线性回归中最优子集选择问题的局部分支启发式
T. Bigler, O. Strub
The best subset selection problem in linear regression consists of selecting a small subset with a given maximum cardinality of a set of features, i.e explanatory variables, to build a linear regression model that is able to explain a given set of observations of a response variable as exactly as possible. The motivation in building linear regression models that include only a small number of features is that these models are easier to interpret. In this paper, we present a heuristic based on the concept of local branching. Such a heuristic repeatedly performs local-search iterations by applying mixed-integer programming. In each local-search iteration, we consider a different randomly selected subset of the features to reduce the required computational time. The results of our computational tests demonstrate that the proposed local-branching heuristic delivers better linear regression models than a pure mixed-integer programming approach within a limited amount of computational time.
线性回归中的最佳子集选择问题包括选择具有一组特征(即解释变量)的给定最大基数的小子集,以构建能够尽可能准确地解释响应变量的给定观察集的线性回归模型。建立只包含少量特征的线性回归模型的动机是这些模型更容易解释。本文提出了一种基于局部分支概念的启发式算法。这种启发式算法通过混合整数规划重复执行局部搜索迭代。在每次局部搜索迭代中,我们考虑不同的随机选择的特征子集,以减少所需的计算时间。我们的计算测试结果表明,在有限的计算时间内,所提出的局部分支启发式方法比纯混合整数规划方法提供了更好的线性回归模型。
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引用次数: 0
A Serious Game for Competence Development in Internet of Things and Knowledge Sharing 物联网能力发展与知识共享的严肃博弈
Ugyen Nima, Rinzin Wangdi, J. Hauge
Internet of Things provides an ability to interact with, share the data, and expand the capabilities of the physical world in terms of computation, communication, and key control with humans through many new modalities devices in the connected network. Though the availability of the information and performance are higher at lower cost, the usage of such system becomes more complex with the advancement of technologies. The traditional ways like lecture-based and role-playing learning has developed one-sided learning and also expensive for the low-income people to acquire such knowledge. On the other hand, serious gaming has helped the users in acquiring new experiences and complex knowledge which are acquired through solving presented challenges whereby the user applies competency to solve these problems. This paper proposes serious gaming as a learning environment for gaining competence, knowledge, and experiences in IoT and knowledge sharing for the users. Moreover, the design of a serious game, effectiveness of ATMSG framework and evaluation results are also discussed.
物联网通过连接网络中的许多新模式设备,提供了与人类进行交互、共享数据的能力,并在计算、通信和按键控制方面扩展了物理世界的能力。虽然信息的可用性和性能以较低的成本得到提高,但随着技术的进步,这种系统的使用变得越来越复杂。传统的授课式和角色扮演式的学习方式已经形成了片面的学习方式,低收入人群获取这些知识的成本也很高。另一方面,严肃游戏帮助用户获得新的体验和复杂的知识,这些知识是通过解决呈现的挑战获得的,用户可以运用能力来解决这些问题。本文建议将严肃游戏作为一种学习环境,用于获取物联网方面的能力、知识和经验,并为用户提供知识共享。此外,还讨论了一个严肃游戏的设计、ATMSG框架的有效性和评估结果。
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引用次数: 5
Process Safety and Performance Improvement in Oil Refineries Through Active Redundancy and Risk Assessment Method - A Case Study 通过主动冗余和风险评估方法改善炼油厂过程安全和性能-一个案例研究
M. Loganathan, S. Neog, Sunil Rai
Safety and performance improvement of oil refineries are of paramount importance as far as plant throughput is concerned. The refineries do have several critical units, one such unit is Hydrocracker Unit (HCU), which is used in petroleum refineries to produce mainly diesel and other middle distillates. Maintenance of specified temperature of these products is a real challenge as far as the safety is concerned. During high throughput, the cooler used for cooling the outgoing products like diesel becomes ineffective, which results in increased diesel temperature, leading to unsafe condition and reduced performance. The critical parts of the cooler will further worsen the situation. The case study presents the excerpts of process safety and performance improvement of a HCU cooling system by installing an additional cooler as an active redundancy to reduce the diesel outlet temperature. An effective risk assessment method, FMEA (Failure Mode and Effects Analysis) has been carried out to identify the critical units of the cooler unit.
就工厂的生产能力而言,炼油厂的安全和性能改进是至关重要的。炼油厂确实有几个关键装置,其中一个是加氢裂化装置(HCU),它主要用于石油炼油厂生产柴油和其他中间馏分。就安全性而言,维持这些产品的规定温度是一个真正的挑战。在高吞吐量时,用于冷却柴油等出口产品的冷却器失效,导致柴油温度升高,导致不安全状态和性能下降。冷却器的关键部件将使情况进一步恶化。该案例研究介绍了HCU冷却系统的过程安全和性能改进,通过安装额外的冷却器作为主动冗余来降低柴油出口温度。采用一种有效的风险评估方法FMEA (Failure Mode and Effects Analysis)来识别冷却器机组的关键部件。
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引用次数: 10
ACO-based Parallel Machine Scheduling Considering Both Setup Time and Run-based Preventive Maintenance with Reliability Constraints 考虑安装时间和运行状态下可靠性约束的并行机器调度
Siqi Chen, Liya Wang
This paper studied the problem of parallel processing machine scheduling, taking both set up time and run-based preventive maintenance with reliability constraints into consideration. The objective is to minimize makespan. For this NP-hard problem, an Ant Colony Optimization (ACO) algorithm is proposed. The node selecting probability equation is set based on characteristics of this problem. The objective value obtained by the proposed algorithm is compared to that of the classical LPT rule through numerical experiments. The experiment results imply that the proposed ACO algorithm has better performance than the LPT rule.
本文研究了并行加工机器的调度问题,同时考虑了建立时间和基于运行的预防性维护,并考虑了可靠性约束。目标是最小化完工时间。针对这种np困难问题,提出了一种蚁群优化算法。根据该问题的特点,建立了节点选择概率方程。通过数值实验,将该算法得到的目标值与经典LPT规则的目标值进行了比较。实验结果表明,所提出的蚁群算法比LPT规则具有更好的性能。
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引用次数: 4
Comparison of Clustering Methods for Obesity Classification 肥胖症分类的聚类方法比较
S. Ahn, Cai Wang, G. W. Shin, Donggun Park, Yohan Kang, Jaramier C. Joibi, M. Yun
Body mass index (BMI) is mostly used as a reference through its indirect measure of fat mass and can be used conveniently. Despite such reference and convenience, in accordance to previous studies done, there exist a poor degree of agreement in obesity classification when it comes to BMI and the percent body fat that was found. Together with the utility of such obesity classification which refers to predefined cut-off values of BMI was seen as controversial. This study aims to discover a new method to classify obesity by using artificial intelligence (AI) techniques and statistical methods for obesity classification with minimum number of body dimensions required for input. The performance of methods used undergo comparison in terms of accuracy and interpretability. Results have shown that fuzzy rule-based system (FRBS) to be the most appropriate method amongst the rest. FRBS showed a performance of accuracy similar to other AI algorithms and discriminant analysis (DA), also showing a more stable and consistent provision of classification rules compared to the others. Concurrently, this study is suggesting the FRBS method as an obesity classification method.
体重指数(Body mass index, BMI)通过间接测量脂肪量,多作为参考,使用方便。尽管有这样的参考和方便,但根据之前所做的研究,当涉及到BMI和发现的体脂百分比时,肥胖分类的一致性很差。与这种肥胖分类的效用一起,它指的是预定义的BMI临界值,被认为是有争议的。本研究旨在利用人工智能(AI)技术和统计方法,以最少的身体尺寸输入,发现一种新的肥胖分类方法。所使用的方法在准确性和可解释性方面进行了比较。结果表明,基于模糊规则的系统(FRBS)是最合适的方法。FRBS表现出与其他人工智能算法和判别分析(DA)相似的准确性,也表现出比其他算法更稳定和一致的分类规则提供。同时,本研究建议FRBS方法作为一种肥胖分类方法。
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引用次数: 3
A Genetic Algorithm for Generating Travel Itinerary Recommendation with Restaurant Selection 带餐厅选择的旅游路线推荐的遗传算法
B. Wibowo, Monica Handayani
Experiencing local food while making a trip has a significant impact on the overall tourist experience. No wonder that visiting local restaurants has become an integral part of a tourist itinerary. Nevertheless, manually planning a travel itinerary is a complicated and time-consuming task. This study aims to introduce and solve a planning problem for generating a high-quality itinerary consisting of an efficient route to visit tourist attractions and restaurants at a proper time. We modeled this problem as a rooted orienteering problem with time windows, where the selected restaurants should be scheduled within lunch and dinner time. The objective is to maximize the total collected utility in each visited locations while maintaining the total travel time under a specific constraint. We developed a Genetic Algorithm to solve the problem and presented Yogyakarta city as a case study. The result suggested that the developed algorithm can effectively solve the problem and generate a satisfactory solution with a high total utility value.
在旅行中体验当地食物对整体旅游体验有重大影响。难怪到当地餐馆就餐已成为旅游行程中不可缺少的一部分。然而,手动规划旅行路线是一项复杂而耗时的任务。本研究旨在介绍并解决一个规划问题,以生成一个高质量的行程,包括在适当的时间访问旅游景点和餐馆的有效路线。我们将此问题建模为带有时间窗口的定向运动问题,即选择的餐厅应该安排在午餐和晚餐时间内。目标是最大化每个访问地点的总收集效用,同时在特定约束下保持总旅行时间。我们开发了一种遗传算法来解决这个问题,并以日惹市为例进行了研究。结果表明,所开发的算法能够有效地求解该问题,并产生满意的解,具有较高的总效用值。
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引用次数: 11
A Literature Review on Approaches for the Retrospective Utilisation of Data in Engineering Change Management 工程变更管理中数据回顾性利用方法的文献综述
Armin Tale-Yazdi, N. Kattner, L. Becerril, U. Lindemann
The paper provides a comprehensive literature research regarding the field of data analysis in engineering change management. The focus is on a posteriori analysis methods of engineering change data. After an introduction to the topic, identified a posteriori data analysis procedures in the engineering change management are listed and supplemented by further a priori analysis procedures. Furthermore, the a posteriori data analysis methods presented are compared on the basis of a catalogue of requirements.
本文对工程变更管理中的数据分析领域进行了全面的文献研究。重点介绍了工程变更数据的后验分析方法。在对课题进行介绍后,确定了工程变更管理中的后验数据分析程序,并进一步补充了先验分析程序。此外,在需求目录的基础上,对提出的后验数据分析方法进行了比较。
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引用次数: 10
期刊
2018 IEEE International Conference on Industrial Engineering and Engineering Management (IEEM)
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