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2019 4th International Conference on System Reliability and Safety (ICSRS)最新文献

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Toward Optimum Resiliency: Practical Alignment of BCM and ERM Processes 走向最佳弹性:BCM和ERM过程的实际结合
Pub Date : 2019-11-01 DOI: 10.1109/ICSRS48664.2019.8987615
Wael A. Althobaiti, Saleh A. Aloraini
Nowadays, enterprise business processes significantly relay on sophisticated and complex IT technologies to enhance business productivity which in turn increase operations' risks of failures and interruptions. Enterprises strive to continuously improve their business continuity program by testing business continuity plans to ensure optimum productivity and resiliency. However, usually observations recorded from drills' activities are not addressed effectively and in timely manner. Business Continuity Management (BCM) and Enterprise Risk Management (ERM) processes should be aligned together to reduce the time to address recorded observations. This paper illustrates a new implemented approach by aligning BCM and ERM processes. The alignment is based on extended collaboration. For example, risk register should be designed and shared collaboratively with business continuity practitioners to ensure defining accurate risks mitigation plans and controls for all drills' scenarios as well. Both processes practitioners shall work closely in conducting Business Impact Analysis and Risk Assessments (BIA/RA) and measure the impact of IT services' disruptions. Moreover, ERM practitioners should be involved in all BCM activities to detect areas of improvement and measure the effectiveness of developed plans and controls. Once observations are recorded from business continuity and disaster recovery (BC/DR) drills and compliances, they should be presented to a joint steering committee, prioritized based on severity and then transferred to the enterprise risk register. Both processes should operate side by side toward robust IT operations. This practice has been proven to be very practical and effective to reduce business overall risks and overdue observations.
如今,企业业务流程在很大程度上依赖于复杂的IT技术来提高业务生产力,这反过来又增加了操作失败和中断的风险。企业努力通过测试业务连续性计划来不断改进其业务连续性计划,以确保最佳的生产力和弹性。然而,通常从演习活动中记录的观察结果没有得到有效和及时的处理。业务连续性管理(BCM)和企业风险管理(ERM)过程应该结合在一起,以减少处理记录观察的时间。本文通过调整BCM和ERM过程,阐述了一种新的实现方法。这种对齐基于扩展的协作。例如,应该设计风险登记册,并与业务连续性从业人员协作共享,以确保为所有演练场景定义准确的风险缓解计划和控制。这两个流程实践者应密切合作,进行业务影响分析和风险评估(BIA/RA),并度量IT服务中断的影响。此外,ERM从业者应该参与所有的BCM活动,以发现改进的领域,并衡量已开发的计划和控制的有效性。一旦从业务连续性和灾难恢复(BC/DR)演习和遵从性中记录了观察结果,它们应该提交给联合指导委员会,根据严重程度确定优先级,然后转移到企业风险登记册。这两个过程应该肩并肩地运行,以实现健壮的IT操作。该实践已被证明是非常实用和有效的,可以减少业务总体风险和逾期观察。
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引用次数: 1
Natural Reliability Growth Trend Test Application on Electromechanical System 自然可靠性增长趋势试验在机电系统中的应用
Pub Date : 2019-11-01 DOI: 10.1109/ICSRS48664.2019.8987723
Xiaobing Li, Mingxi Cai, J. Guo, Xiaocui Zhu
Aiming at the problem of reliability growth trend in the early use stage of complex electromechanical systems, the graphical method and analytical method of natural growth are analyzed. For the single and multiple systems, the graphic method, the Laplace test method and the Duane model test method are analyzed respectively. At last, he case example is given to verify the application of the test method, which shows that the combination of the graphic method and the analytical method can test the natural growth trend of the reliability of the electromechanical system effectively
针对复杂机电系统早期使用阶段的可靠性增长趋势问题,分析了自然增长的图解法和解析法。对于单系统和多系统,分别分析了图解法、拉普拉斯试验法和Duane模型试验法。最后,通过算例验证了该测试方法的应用,表明图解法与解析法相结合可以有效地测试机电系统可靠性的自然增长趋势
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引用次数: 0
Supply-at-Risk: Resilience Metric for Infrastructure Systems: Framework for assessing and comparing resilience of infrastructure systems in urban areas 风险供应:基础设施系统弹性度量:评估和比较城市地区基础设施系统弹性的框架
Pub Date : 2019-11-01 DOI: 10.1109/ICSRS48664.2019.8987665
Mateusz Iwo Dubaniowski, H. Heinimann
Urban systems, composed of households, businesses, and infrastructures, are continuously evolving and expanding. This has several implications because the impacts of disruptions, and the complexity and interdependence of systems, are rapidly increasing. Hence, we face a challenge in how to assess resilience of infrastructure systems in these urban areas. This issue has significant impact on infrastructure systems design and development. The aims of this study were to: (1) apply a framework for modeling interdependencies between infrastructure systems, businesses and households to a certain urban area; (2) develop a suite of disruption scenarios for the model; and (3) to devise a metric for resilience of infrastructure systems in an urban area that could be derived from the simulation model. Our study resulted in an application of a model that mimics infrastructure systems, businesses, and households in an urban area. Subsequently, a metric for resilience of infrastructure systems was proposed and applied. The metric - supply-at-risk - was shown to be useful in comparing developments to infrastructure systems in terms of resilience. Our simulation experiment has shown that the supply-at-risk curve moves down after beneficial change is made to the system. We concluded that the supply-at-risk is a useful metric for resilience assessment allowing comparison of various infrastructure developments. Ideas for future research were also identified centered around assessing the metric under a wider range of disruptions and modifications to infrastructure systems.
由家庭、企业和基础设施组成的城市系统不断发展和扩大。这有几个含义,因为中断的影响,以及系统的复杂性和相互依赖性正在迅速增加。因此,我们面临着如何评估这些城市地区基础设施系统弹性的挑战。这个问题对基础设施系统的设计和开发具有重要的影响。本研究的目的是:(1)将基础设施系统、企业和家庭之间相互依赖关系的建模框架应用于特定城市地区;(2)为模型开发一套中断情景;(3)根据模拟模型设计城市基础设施系统弹性指标。我们的研究结果是一个模拟城市地区基础设施系统、企业和家庭的模型的应用。随后,提出并应用了基础设施系统弹性度量。在比较开发与基础设施系统的弹性方面,风险供应这一指标被证明是有用的。我们的模拟实验表明,在对系统进行有益的改变后,风险供给曲线向下移动。我们的结论是,风险供应是一个有用的弹性评估指标,可以比较各种基础设施的发展。我们还确定了未来研究的思路,重点是在更大范围的基础设施系统中断和修改下评估指标。
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引用次数: 3
Blockchain-Based Model for Software Licensing 基于区块链的软件许可模型
Pub Date : 2019-11-01 DOI: 10.1109/ICSRS48664.2019.8987715
V. Stepanova, I. Erins
Digital assets can be easily copied and it is hard to prove intellectual property rights. The authors of intellectual work, including software developers, often do not receive appropriate remuneration for their work. At the same time, it is also not always easy for the users to examine the way the product has been developed and the quality of the product. The aim of this work is to develop a software transfer model based on the blockchain technology. This research is based on the analysis of research literature with an aim to assess profoundly the opportunities and prospects for the use of blockchain, a method of analysing individual components and a synthesis method that connects its elements and relations in a uniform system.
数字资产很容易被复制,而且很难证明其知识产权。智力工作的作者,包括软件开发人员,通常没有得到适当的报酬。与此同时,用户也不容易检查产品的开发方式和产品的质量。这项工作的目的是开发一个基于区块链技术的软件转移模型。本研究基于对研究文献的分析,旨在深刻评估区块链使用的机会和前景,这是一种分析单个组件的方法,也是一种将其元素和关系连接到统一系统中的综合方法。
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引用次数: 5
Health Monitoring by Physical Modeling and Statistical Learning 通过物理建模和统计学习进行健康监测
Pub Date : 2019-11-01 DOI: 10.1109/ICSRS48664.2019.8987630
Claire-Eleuthèriane Gerrer, Sylvain Girard
Health monitoring aims at preventing failures from happening. Our approach of health monitoring is to combine observations of the system with physical modeling. Information is extracted from complex observations by statistical learning. The study of this raw information can give first insights in the problem. To go further, the physical knowledge about the system is required. The modeling of the system components implements the physical knowledge we have of the system. Inversing this model enables the identification of the parameters responsible for the degradation. Model inversion is realized by bayesian inference. The evolution over time of the system parameters undergoing degradation enables precise diagnoses and the set up of predictive maintenance operations.
运行状况监控的目的是防止发生故障。我们的健康监测方法是将对系统的观察与物理建模相结合。通过统计学习从复杂的观察中提取信息。对这些原始信息的研究可以对问题有初步的了解。要更进一步,还需要系统的物理知识。系统组件的建模实现了我们对系统的物理知识。对该模型进行反演,可以识别导致退化的参数。通过贝叶斯推理实现模型反演。随着时间的推移,系统参数的退化使精确诊断和预测性维护操作的建立成为可能。
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引用次数: 0
A State-based Extension to STPA for Safety-Critical System-of-Systems 安全关键系统的基于状态的STPA扩展
Pub Date : 2019-11-01 DOI: 10.1109/ICSRS48664.2019.8987632
Stephan Baumgart, Joakim Fröberg, S. Punnekkat
Automation of earth moving machinery enables improving existing production workflows in various applications like surface mines, material handling operations or material transporting. Such connected and collaborating autonomous machines can be seen as a system-of-systems. It is not yet clear how to consider safety during the development of such system-of-systems (SoS). One potentially useful approach to analyze the safety for complex systems is the System Theoretic Process Analysis (STPA). However, STPA is essentially suitable to static monolithic systems and lacks the ability to deal with emergent and dysfunctional behaviors in the case of SoS. These behaviors if not identified could potentially lead to hazards and it is important to provide mechanisms for SoS developers/integrators to capture such critical situations. In this paper, we present an approach for enriching STPA to provide the ability to check whether the distributed constituent systems of a SoS have a consistent perspective of the global state which is necessary to ensure safety. In other words, these checks must be capable at least to identify and highlight inconsistencies that can lead to critical situations. We describe the above approach by taking a specific case of state change related issues that could potentially be missed by STPA by looking at an industrial case. By applying Petri nets, we show that possible critical situations related to state changes are not identified by STPA. In this context we also propose a model-based extension to STPA and show how our new process could function in tandem with STPA.
土方机械的自动化可以改善各种应用中的现有生产工作流程,如露天矿山,物料搬运操作或物料运输。这种相互连接和协作的自主机器可以被视为一个系统的系统。在这种系统的系统(SoS)的开发过程中,如何考虑安全性尚不清楚。系统理论过程分析(STPA)是分析复杂系统安全性的一种潜在的有用方法。然而,STPA基本上适用于静态单片系统,缺乏处理SoS情况下的紧急和功能失调行为的能力。如果不识别这些行为,可能会潜在地导致危险,因此为SoS开发人员/集成商提供捕捉此类危急情况的机制非常重要。在本文中,我们提出了一种丰富STPA的方法,以提供检查系统的分布式组成系统是否具有全局状态的一致视角的能力,这是确保安全所必需的。换句话说,这些检查必须至少能够识别并突出可能导致危急情况的不一致。我们通过一个特定的州变化相关问题的案例来描述上述方法,这些问题可能会被STPA通过查看工业案例而忽略。通过应用Petri网,我们发现STPA不能识别与状态变化相关的可能的临界情况。在这种情况下,我们还提出了一个基于模型的STPA扩展,并展示了我们的新流程如何与STPA协同工作。
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引用次数: 1
Operation Assessment of Service Water Systems under Periodic Inspection and Maintenance 定期检查和维修供水系统的运行评估
Pub Date : 2019-11-01 DOI: 10.1109/ICSRS48664.2019.8987611
Wei Wang, Linggang Zeng, Jun Zhao, Bo Li
This paper presents a model to perform the operation assessment of Service Water Systems (SWSs) under periodic inspection and maintenance. A modular approach is used to integrate the component and subsystem models into a system structure and Monte Carlo (MC) simulation is proposed to estimate the system unavailability of SWSs. In the illustration case study, we calculate the occurrence of loss of service water and assess the impact on its supporting systems in Nuclear Power Plants (NPPs). Then, a sensitivity analysis is performed to explore the impact of inspection interval on the system availability.
本文提出了一种用于定期检查和维护供水系统运行评估的模型。采用模块化方法将组件和子系统模型集成到一个系统结构中,并提出了蒙特卡罗(MC)仿真来估计SWSs的系统不可用性。在例证案例研究中,我们计算了核电站供水损失的发生情况,并评估了对其支持系统的影响。然后,进行灵敏度分析,探讨巡检间隔对系统可用性的影响。
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引用次数: 0
Research on Extreme Value Distribution of Cutting Force in CNC Lathe Based on Generalized Extreme Value Distribution 基于广义极值分布的数控车床切削力极值分布研究
Pub Date : 2019-11-01 DOI: 10.1109/ICSRS48664.2019.8987639
Shengxu Wang, Guofa Li, Haiji Yang, Jialong He
The extreme value of cutting force is one of the important factors affecting the reliability of machine tools. Correctly establishing its distribution is an important prerequisite for the preparation of CNC machine tool cutting force spectrum and the reliability design of CNC machine tools. In this paper, the cutting force data of the CNC lathe under light, medium and heavy load conditions were obtained by the actual cutting test. The cutting force was sampled by the Block Maximum Method (BMM), and the sample was distributed by the generalized extreme value (GEV) distribution. The chi-square test was utilized to test the goodness of the fitted GEV distribution, and then, the optimal number of blocks in BMM model was determined by comparing values of chi-square test. At last the optimal distribution function of the extreme values was obtained. A reliable distribution model of extreme value for the extrapolation of cutting force extremes and establishment of cutting force spectra is provided in this paper.
切削力极值是影响机床可靠性的重要因素之一。正确建立其分布是编制数控机床切削力谱和进行数控机床可靠性设计的重要前提。本文通过实际的切削试验,获得了数控车床在轻、中、重载条件下的切削力数据。采用块极值法(BMM)对切削力进行采样,并采用广义极值法(GEV)对样本进行分布。利用卡方检验检验拟合的GEV分布的优度,然后通过比较卡方检验的值确定BMM模型的最优块数。最后得到了极值的最优分布函数。本文为切削力极值的外推和切削力谱的建立提供了可靠的极值分布模型。
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引用次数: 2
Interval Type-2 Fuzzy Reliability Modeling for Recycling Facility 回收设施区间型-2模糊可靠性建模
Pub Date : 2019-11-01 DOI: 10.1109/ICSRS48664.2019.8987616
Esra Çakır, Z. Ulukan
The recycling process is an important step in waste management for a sustainable environment. However, some steps in the recycling process may pose a risk to human health. Oxides that remain in the open area for a long time due to the inability to storage threaten the environment and toxic wastes may spread to the environment due to human or software-related errors that may occur on machines. Therefore, system reliability is essential for the correct operation in recycling facilities. In this study, interval type-2 fuzzy numbers are evaluated for system reliability of recycling facilities. Using the performance and reliability indexes created with fuzzy expressions, the reliability level of the system and priority problems affecting system reliability are identified.
回收过程是废物管理的一个重要步骤,以实现可持续的环境。然而,回收过程中的某些步骤可能对人类健康构成风险。由于无法储存而长期滞留在露天区域的氧化物对环境构成威胁,由于机器上可能出现人为或软件相关的错误,有毒废物可能会扩散到环境中。因此,系统可靠性对于回收设施的正确运行至关重要。本文采用区间2型模糊数对回收设施的系统可靠性进行了评价。利用用模糊表达式建立的性能和可靠性指标,确定了系统的可靠性等级和影响系统可靠性的优先级问题。
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引用次数: 0
Reliability and Maintainability Analysis of Material Handling Machinery in Golegohar Mine No. 1 戈尔戈哈尔1矿物料搬运机械可靠性与可维护性分析
Pub Date : 2019-11-01 DOI: 10.1109/ICSRS48664.2019.8987634
M. Nabizadeh, S. Jalali, A. Soltani, A. Khademian, J. Barabady
Loading and hauling machines are of the most important operational units in open pit mines, which their failure can lead to reduction in production and profitability of mines. Therefore, it is very important to do a reliability and maintainability analysis of mining machines in order to make a better decision with respect to operation and maintenance of machines as well as production control in the mine. Awareness of transport units operational conditions and precise control over them are the key elements for preventing unwanted stops and improving the performance of machines. The aim of this study is to evaluate the reliability and maintainability of loading and hauling equipment in Golegohar Mine No. 1 in Iran, which produce 12 million tons of iron ore annually. For this purpose, the failure data of transport units including dump trucks, mining shovels and backhoe excavators were collected over a period of one year. Then the data were analyzed based on the statistical method to produce the reliability and maintainability parameters of each mining equipment. The time corresponding to reliability and maintainability levels of 90 and 50 percent are also calculated and presented.
装载机和拖运机是露天矿中最重要的作业设备,其故障会导致矿山产量下降和盈利能力下降。因此,对矿山机械进行可靠性和可维护性分析,对矿山机械的运行维护和生产控制做出更好的决策具有十分重要的意义。了解运输单位的运行状况并对其进行精确控制是防止不必要的停车和提高机器性能的关键因素。本研究的目的是评估伊朗Golegohar 1矿的装载和运输设备的可靠性和可维护性,该矿每年生产1200万吨铁矿石。为此,收集了包括自卸车、矿用铲和反铲挖掘机在内的运输单元在一年内的故障数据。然后利用统计方法对数据进行分析,得出各采矿设备的可靠性和可维护性参数。计算并给出了达到90%和50%可靠性和可维护性水平所需的时间。
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引用次数: 1
期刊
2019 4th International Conference on System Reliability and Safety (ICSRS)
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