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IF 2 3区 工程技术 Q4 ENGINEERING, INDUSTRIAL Pub Date : 2023-03-01 DOI: 10.1002/sys.21627
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引用次数: 0
System reconfiguration ontology to support model‐based systems engineering: Approach linking design and operations 支持基于模型的系统工程的系统重构本体:连接设计和操作的方法
IF 2 3区 工程技术 Q4 ENGINEERING, INDUSTRIAL Pub Date : 2023-02-10 DOI: 10.1002/sys.21661
Lara Qasim, A. Hein, Sorin Olaru, Jean-Luc Garnier, M. Jankovic
System reconfiguration is essential in complex systems management, as it is an enabler of system flexibility and adaptability. It ensures system operation and increases reliability, availability, maintainability, testability, safety, and reuse of system entities and technologies. For the reconfiguration of a system in use, it is necessary to assess, in continuity, the system's state with regard to its context. Identifying data supporting system reconfiguration represents a major industrial challenge and is linked directly to the development of industrial reconfiguration tools. Reconfiguration tools are based on a data model, also called ontology, which represents key concepts of system reconfiguration and their relationships. A particular difficulty of developing the data model is the multi‐domain nature of reconfiguration. Furthermore, it needs to address a considerable diversity of system types. Few publications propose an ontology supporting data identification and tool development for the entire process. Hence, in this paper we propose to formalize the system reconfiguration process and propose an overarching ontology, which we call OSysRec. This ontology considers data at the management, dynamics, and structure level. The proposed ontology has been developed based upon expert knowledge and several industrial uses cases. The OSysRec ontology allowed a better understanding of the reconfiguration process, and hence it can be deployed for developing efficient and effective reconfiguration tools at the industrial scale. The ontology has been tested on an industrial case study to validate the proposed approach.
系统重构在复杂系统管理中是必不可少的,因为它是系统灵活性和适应性的推动者。它保证了系统的运行,提高了系统实体和技术的可靠性、可用性、可维护性、可测试性、安全性和可重用性。对于正在使用的系统的重新配置,有必要在连续性中评估系统与其上下文相关的状态。识别支持系统重构的数据是一项重大的工业挑战,与工业重构工具的开发直接相关。重构工具基于数据模型,也称为本体,它表示系统重构的关键概念及其关系。开发数据模型的一个特别困难是重构的多域性质。此外,它需要处理各种系统类型。很少有出版物提出支持整个过程的数据识别和工具开发的本体。因此,在本文中,我们建议形式化系统重构过程,并提出一个总体本体,我们称之为OSysRec。该本体考虑管理、动态和结构级别的数据。提出的本体是基于专家知识和几个工业用例开发的。OSysRec本体允许更好地理解重新配置过程,因此它可以用于在工业规模上开发高效和有效的重新配置工具。该本体已在一个工业案例研究中进行了测试,以验证所提出的方法。
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引用次数: 0
Detecting emergence in engineered systems: A literature review and synthesis approach 在工程系统中检测突现:文献综述和综合方法
IF 2 3区 工程技术 Q4 ENGINEERING, INDUSTRIAL Pub Date : 2023-02-07 DOI: 10.1002/sys.21660
Rune Andre Haugen, Nils-Olav Skeie, G. Muller, Elisabet Syverud
Modern product development often generates systems of high complexity that are prone to emergent behavior. The industry has a need to establish better practices to detect inherent emergent behavior when engineering such systems. Philosophers and researchers have debated emergence throughout history, tracing to the time of the Greek philosopher Aristotle (384–322 B.C.) and current literature has both philosophical and practical examples of emergence in modern systems. In this review paper, we investigate the phenomenon of emergent behavior in engineered systems. Our aim is to describe emergence in engineered systems and propose methods to detect it, based on literature. Emergence is in general explained as dynamic behavior seen at macro level that cannot be traced back to the micro level. Emergence can be known or unknown in combination with positive or negative. We find that best practices to engineer complicated systems should contain a sensible suite of traditional approaches and methods, while best practices to engineer complex systems need extensions to this considering a new paradigm using incentives to guide system behavior rather than testing it up‐front.
现代产品开发通常会产生高度复杂的系统,这些系统容易出现紧急行为。该行业需要建立更好的实践,以在设计此类系统时检测固有的紧急行为。哲学家和研究人员在整个历史上一直在争论出现,可以追溯到希腊哲学家亚里士多德(公元前384年至公元前322年)的时代,当前的文学既有现代系统出现的哲学例子,也有实践例子。在这篇综述文章中,我们研究了工程系统中的紧急行为现象。我们的目的是描述工程系统中的出现,并根据文献提出检测方法。紧急情况通常被解释为宏观层面的动态行为,无法追溯到微观层面。紧急情况可以是已知的或未知的,也可以是阳性或阴性。我们发现,设计复杂系统的最佳实践应该包含一套合理的传统方法和方法,而设计复杂系统最佳实践需要扩展到这一点,考虑到一种新的范式,使用激励来指导系统行为,而不是预先测试。
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引用次数: 0
Human factors hazard modeling in the systems modeling language 系统建模语言中的人为因素危害建模
IF 2 3区 工程技术 Q4 ENGINEERING, INDUSTRIAL Pub Date : 2023-01-31 DOI: 10.1002/sys.21659
Dustin S. Birch, Jayesh B. Narsinghani, D. Herber, Thomas H. Bradley
An ongoing challenge within the field of Systems Engineering is the application of a right‐scoped and consistent approach to modeling human functions and risks within a system lifecycle. Humans interacting with a system can be modeled along a continuum from passive agents with not well‐defined interfaces with the system operations, to essential personnel who are responsible for dynamic interactions that ensure the safety and correct function of the system. This paper seeks to contribute to the integration of a model of human function, response, and reliability into the systems engineering of a complicated system through translation of a Human Factors Hazard Model (HFHM) into the Systems Modeling Language (SysML). The HFHM is constructed as a sequential event tree model of human response to triggering events, where each event's likelihood of failure is modeled by a set of fault trees predicting human failure probabilistically using Human Error Probabilities (HEP). Implementation of this model in SysML is demonstrated through a set of stereotyped structural, behavioral, and parametric diagrams. Integration of the HFHM within SysML demonstrates the benefits of human factors modeling and integration into Model‐Based Systems Engineering (MBSE) processes illustrating executability, reusability, and traceability.
在系统工程领域中,一个持续的挑战是在系统生命周期中应用正确范围和一致的方法来建模人类功能和风险。与系统交互的人可以沿着一个连续体建模,从与系统操作没有良好定义接口的被动代理,到负责动态交互以确保系统安全和正确功能的基本人员。本文试图通过将人为因素危害模型(HFHM)翻译成系统建模语言(SysML),将人的功能、响应和可靠性模型集成到复杂系统的系统工程中。HFHM被构建为人类对触发事件响应的顺序事件树模型,其中每个事件的故障可能性由一组故障树建模,这些故障树使用人类错误概率(HEP)来预测人类故障的概率。该模型在SysML中的实现通过一组原型化的结构图、行为图和参数图来演示。HFHM在SysML中的集成展示了人为因素建模和集成到基于模型的系统工程(MBSE)过程中的好处,说明了可执行性、可重用性和可追溯性。
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引用次数: 0
Identifying key parameters impacting cost in large‐scale complex space programs using simulation‐based global sensitivity analysis 使用基于模拟的全局灵敏度分析确定影响大型复杂空间项目成本的关键参数
IF 2 3区 工程技术 Q4 ENGINEERING, INDUSTRIAL Pub Date : 2023-01-16 DOI: 10.1002/sys.21656
N. S. Basha, Leifur Þ. Leifsson, C. Bloebaum
Cost overruns averaging 45%–50% can occur during the acquisition process of large‐scale complex space programs. The factors that impact the cost overrun are frequently misunderstood and are not identified correctly. This paper investigates the impact of the parameters on the overall cost of a geosynchronous communication satellite program using model‐based global sensitivity analysis. A simulation model with the acquisition data was used to identify the key parameters within the system model that interact with the cost of the program. A system simulation model containing a physics‐based satellite model and a parametric cost model is utilized to conduct variance‐based sensitivity analysis. Data from selected acquisition reports are used to validate the system simulation model. Sobol' analysis is performed on the parameters associated with requirements of the satellite system, operations, and support to maintain the system, including the launch system and ground equipment. The results show that parameters related to the system‐based requirements significantly impact the program cost. These critical parameters, which influence the cost, lay the foundation to quantify the impact of system parameters and their uncertainty on the cost of the system using a simulation‐based model which will aid in the reduction of cost overruns during the design and development of future large‐scale complex engineered systems.
在大型复杂空间项目的采办过程中,平均成本超支45%-50%。影响成本超支的因素经常被误解,并且没有正确识别。本文利用基于模型的全局灵敏度分析研究了参数对地球同步通信卫星项目总成本的影响。使用采集数据的仿真模型来确定系统模型中与项目成本相互作用的关键参数。利用包含基于物理的卫星模型和参数成本模型的系统仿真模型进行基于方差的灵敏度分析。来自选定的采集报告的数据用于验证系统仿真模型。Sobol的分析是对与卫星系统、操作和维护系统(包括发射系统和地面设备)相关的参数进行的。结果表明,与基于系统的需求相关的参数对项目成本有显著影响。这些影响成本的关键参数为使用基于仿真的模型量化系统参数及其不确定性对系统成本的影响奠定了基础,这将有助于在未来大型复杂工程系统的设计和开发过程中减少成本超支。
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引用次数: 0
Applying risk assessment methods to the sex trafficking process: A feasibility study 将风险评估方法应用于性交易过程:可行性研究
IF 2 3区 工程技术 Q4 ENGINEERING, INDUSTRIAL Pub Date : 2023-01-16 DOI: 10.1002/sys.21658
C. Laux, Kathryn C. Seigfried-Spellar, Laura Martínez Guerra, Gianna S. Lint
Sex trafficking is the fastest‐growing organized criminal activity. Trafficking organizations are driven by profit and provide a service due to existing demand. We examined the feasibility of applying risk assessment methods to understand the problem of sex trafficking from a systems perspective. Focusing on Indiana, we recruited and trained subject matter experts (SMEs) in risk assessment methodologies utilized in Six Sigma (SS); specifically Cause and Effect (C&E) Matrix and Failure Mode and Effects Analysis (FMEA). The research team developed a sex trafficking business process map (BPM) and prioritized activities by applying a C&E Matrix to identify the process steps with the potential for disruption. The most common failure modes (FMEA) identified by the SMEs included the trafficker or customer being caught followed by the victim being rescued. We conclude that an SS risk assessment approach is a viable framework in understanding the system of sex trafficking. Limitations and future research suggestions are discussed.
性交易是增长最快的有组织犯罪活动。贩运组织受利润驱动,并根据现有需求提供服务。我们研究了应用风险评估方法从系统角度理解性贩运问题的可行性。以印第安纳州为重点,我们招募并培训了六西格玛(SS)中使用的风险评估方法的主题专家(SME);特别是因果矩阵和失效模式与影响分析。研究团队开发了性交易业务流程图(BPM),并通过应用C&E矩阵来确定可能中断的流程步骤,从而对活动进行优先排序。中小企业确定的最常见的故障模式(FMEA)包括贩运者或客户被抓住,然后受害者被救出。我们的结论是,SS风险评估方法是理解性交易系统的可行框架。讨论了研究的局限性和未来的研究建议。
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引用次数: 0
A model‐based systems engineering framework for quantum dot solar cells development 基于模型的量子点太阳能电池开发系统工程框架
IF 2 3区 工程技术 Q4 ENGINEERING, INDUSTRIAL Pub Date : 2023-01-11 DOI: 10.1002/sys.21655
M. Karimaghaei, R. Cloutier, Aurangzeb Khan, J. Richardson, A. Phan
Currently, a wide range of newly designed devices are based on high‐end quantum technologies. To successfully design a quantum system, it is necessary to appropriately address the increasing complexity which exists in the development procedure of the system. A suitable approach to deal with this problem is to employ systems engineering models and integrate them with domain engineering tools. The model‐based systems engineering (MBSE) methodology is commonly used to analyze, design, manufacture, and test various complex systems. In this paper, the MBSE approach is chosen for the development of quantum dot solar cells as a typical quantum system and to deal with the complexity existing in this procedure. The analysis, manufacturing, and verification, validation, and testing (VV&T) for this system are described using SysML in Cameo Systems Modeler software to represent the role of models in this regard. Then a detailed design is performed in MATLAB and integrated with SysML to identify how changing various parameters during the system development process affects the overall system performance. This technique facilitates the communication between different engineering teams and helps to manage the complexity in the entire system lifecycle.
目前,许多新设计的器件都是基于高端量子技术。为了成功地设计量子系统,有必要适当地解决系统开发过程中日益复杂的问题。处理这个问题的合适方法是使用系统工程模型,并将它们与领域工程工具集成。基于模型的系统工程(MBSE)方法通常用于分析、设计、制造和测试各种复杂系统。本文选择MBSE方法来开发量子点太阳能电池作为一个典型的量子系统,并处理该过程中存在的复杂性。使用Cameo Systems Modeler软件中的SysML描述了该系统的分析、制造、验证、验证和测试(VV&T),以表示模型在这方面的作用。然后在MATLAB中进行详细设计,并与SysML集成,以确定系统开发过程中各种参数的变化如何影响系统的整体性能。这种技术有助于不同工程团队之间的沟通,并有助于管理整个系统生命周期中的复杂性。
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引用次数: 0
Game analysis of social capital violations and government regulation in public–private partnership risk sharing 公私合作风险分担中社会资本违规与政府监管的博弈分析
IF 2 3区 工程技术 Q4 ENGINEERING, INDUSTRIAL Pub Date : 2023-01-11 DOI: 10.1002/sys.21657
Yan Li, Xinyu Wang
The public–private partnership (PPP) mode entails a variety of risks because the government, private enterprises, financial institutions, and other participants have different interests. To prevent private enterprise violations, dynamic government regulation of PPP risk‐sharing is necessary. Game theory is used here to examine the game behavior of government regulators, private enterprises, intermediary agencies, and the public in the stage of tracking management after the initial risk‐sharing of the project. Primarily, this study analyzes whether private enterprises provide fully compliant reporting and whether government departments check the information by investigating the behavioral motivations behind strategic choices. The primary contribution of this study was to construct a game model of government due diligence inspection under the condition of public participation in regulation. The results of simulations revealed the behavioral characteristics and stability of the participants of PPP in terms of decision‐making. Furthermore, a sensitivity analysis between the state variables and several auxiliary variables was used to reveal the internal relationships of the participants’ strategic choices. This paper offers new insights into reducing violation behavior, protecting the public interest from harm, reducing government departments’ regulatory costs, and promoting effective regulation with public participation.
由于政府、私营企业、金融机构和其他参与者的利益不同,PPP模式带来了各种风险。为了防止私营企业违规,政府对PPP风险分担的动态监管是必要的。本文运用博弈论来考察政府监管机构、私营企业、中介机构和公众在项目初始风险分担后跟踪管理阶段的博弈行为。本研究主要通过调查战略选择背后的行为动机,分析民营企业是否提供了完全合规的报告,以及政府部门是否核查了信息。本研究的主要贡献在于构建了公众参与监管条件下政府尽职审查的博弈模型。模拟结果揭示了PPP参与者在决策方面的行为特征和稳定性。通过状态变量与辅助变量之间的敏感性分析,揭示了参与者战略选择的内在关系。本文为减少违规行为、保护公共利益不受损害、降低政府部门监管成本、促进公众参与的有效监管提供了新的见解。
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引用次数: 2
Improving consistency of AADL models: A composition approach 提高AADL模型的一致性:一种组合方法
IF 2 3区 工程技术 Q4 ENGINEERING, INDUSTRIAL Pub Date : 2023-01-11 DOI: 10.1002/sys.21653
Mohamed Elkamel Hamdane, Saad Harous, E. Kerkouche, Nabil Messaoudi
AADL—architecture analysis and design language—has proven to be important in developing real‐time embedded systems. However, its formalization capability is still limited, which makes it difficult to produce a consistent model; particularly, in the case where several models are combined together. Therefore, using formal verification is an effective way to meet the consistency requirements of the AADL model. This paper proposes a model‐based engineering approach that uses timed automata (TA) formalism to aggregate multiple AADL models into a single composite model. Based on the set of input AADL models, the proposed approach creates a consistent composed model as well as support model checking verification. The effectiveness of this contribution is evaluated through two case studies; a multicamera surveillance system and a drone system.
aadl体系结构分析和设计语言已被证明在开发实时嵌入式系统中非常重要。然而,它的形式化能力仍然有限,这使得难以产生一致的模型;特别是在几个模型组合在一起的情况下。因此,使用形式化验证是满足AADL模型一致性要求的有效途径。本文提出了一种基于模型的工程方法,该方法使用时间自动机(TA)形式化将多个AADL模型聚合为单个复合模型。该方法基于输入AADL模型集,创建一致的组合模型,并支持模型检查验证。通过两个案例研究来评价这一贡献的有效性;多摄像头监控系统和无人机系统。
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引用次数: 0
Using a run time assurance approach for certifying autonomy within naval aviation 使用运行时保证方法来证明海军航空兵的自主性
IF 2 3区 工程技术 Q4 ENGINEERING, INDUSTRIAL Pub Date : 2023-01-03 DOI: 10.1002/sys.21654
Donald H. Costello, Huan Xu
The methods and procedures within United States naval aviation to certify an aircraft safe for flight are well established. However, these methods and procedures are based on clearing a system that is operated or monitored by a human. A fully autonomous system will not have a human in or on the loop and will therefore require a new method for certifying it safe for flight. This paper details how to use run time assurance as the framework for a safety of flight certification of autonomous behavior within United States naval aviation. We present an aerial refueling task with run time assurance as use case for the framework for certification. Within the use case we then give more details on the mechanics of using RTA to enable autonomous functionality within naval aviation.
美国海军航空兵内部认证飞机安全飞行的方法和程序已经确立。然而,这些方法和程序是基于清除由人类操作或监控的系统。一个完全自主的系统不会有人在回路中,因此需要一种新的方法来证明其飞行安全。本文详细介绍了如何使用运行时间保证作为美国海军航空兵自主行为飞行安全认证的框架。我们提出了一个具有运行时间保证的空中加油任务,作为认证框架的用例。在用例中,我们将详细介绍使用RTA在海军航空兵中实现自主功能的机制。
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引用次数: 5
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Systems Engineering
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