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检索条件"主题词=Model Based System Engineering"

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model Driven Upstream and Downstream Artifacts

Model Driven Upstream and Downstream Artifacts

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Conference on ENTERprise Information systems (CENTERIS) / International Conference on Project MANagement (ProjMAN) / International Conference on Health and Social Care Information systems and Technologies (HCist)

作者： Javed, Adnan Azam, Farooque Umar, Amjad Natl Univ Sci & Technol Islamabad Pakistan NGE Solut Inc Elizabethtown PA USA

It is important for a systems architect to be able to "zoom in" and "zoom out" different levels of details, i.e., to see the enterprise and business level views as well as to go into details of systems and different components of systems. The enterprise knowledge and information systems are two fundamentally different disciplines. An intermediary approach that can connect the two bidirectionally can be very useful in such scenarios. This short paper proposes an intermediary modeling approach that can provide means to computer assisted creation of higher-level business architectural artifacts, that can hold business meaning for the upper management, as well as information system meta-model descriptions that can be used for MBSE (model based system engineering) approaches to develop concrete software systems. This would allow enterprise planning at intermediary level to provide upstream and downstream independence. This preliminary research uses a computer aided planning environment that has repository of multi-disciplinary patterns at different levels of detail for rapid development of these models, capturing various views and viewpoints in a step by step manner. (C) 2015 Published by Elsevier B.V.

关键词： Enterprise modeling Decision Support system Enterprise Architecture Frameworks model based system engineering

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Innovative MBSE-based approach to the definition and management of cables and connectors applied to the development of astronomical instruments 11

Innovative MBSE-based approach to the definition and managem...

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Conference on modeling, systems engineering, and Project Management for Astronomy XI

作者： Scalera, Marcello A. Genoni, Matteo Riva, Marco Zanutta, Alessio Balestra, Andrea Di Rocco, Andrea Ciliegi, Paolo INAF Astron Observ Brera Merate Via E Bianchi 46 Merate LC Italy INAF Astron Observ Padova Vicolo Osservatorio 5 Padua PD Italy INAF OAS Via P Gobetti 93-3 Bologna BO Italy

ISBN: (纸本)9781510675216;9781510675223

The Italian astronomical community has begun adopting model based system engineering (MBSE) to develop complex instruments using Cameo systems modeler targeting various system engineering tasks including requirements management, system structure management, activities modeling and simulation, and many more. Lately, the focus moved also to managing the system interfaces and the associated cabling and connectors. The proposed methodology uses interface blocks to represent the connectors and their location in the system. The interface blocks generate a proxy port owned by the structural element they are applied. These ports are then connected to represent the interactions among parts, subsystems, and external actors using SysML connectors. The connectors are then refined through association blocks also used to represent the cable with all their characteristics. The association blocks are linked to the structural blocks as their parts leading to their inclusion in the PBS of the subsystems. The main output is a table listing all the cables of the system, their connectors, the system parts they connect, and other specifics of the cable like its length, weight, and so on.

关键词： model based system engineering SysML Physical Analysis Cables Connectors Product Breakdown Structure

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Interconnections in model-based Safety Analysis and systems Design on the Example of a Fuel Cell Thermal Management system for Commercial Aircraft

Interconnections in Model-Based Safety Analysis and Systems ...

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AIAA Aviation Forum

作者： Luebbe, Sascha M. Voth, Viola Schaefer, Michael Berres, Axel Bertram, Oliver German Aerosp Ctr DLR Inst Flight Syst Dept Safety Crit Syst & Syst Engn D-38108 Braunschweig Lower Saxony Germany

ISBN: (数字)9781624107047

ISBN: (纸本)9781624107047

The impact of the introduction of new technologies for aircraft systems or adaption of such is difficult to estimate in early design stages. The integration of new technologies immediately confronts aircraft manufacturers and suppliers with unseen and novel challenges, especially in regards to safety and inevitable inter-system dependencies. Aviation technology currently used in commercial aircraft has undergone rigorous and extensive testing and development resulting in vast experience of aircraft manufacturers. New technologies will have to be implemented with rigorous design and safety processes, to meet current safety levels. For aviation to accomplish it's self-set goal of carbon neutrality in the future, the incorporation of yet unused energy transformation principles, for example fuel cell systems, with little to no in-service experience to rely on, is imperative. In our ongoing research, we incorporate the established design and safety processes of the Society of Automotive Engineers' (SAE) Aerospace Recommended Practices (ARP) 4761 and 4754A into an operative model-based systems engineering (MBSE) framework. The resulting safety analyses on aircraft level and systems level provide important insight into systems' emerging requirements and their traceability. Additional potential benefits may include an increase of the system architectures' comparability and reusability. The paper examines whether and how integrating safety analysis into model-based systems engineering during conceptual system design can improve early system architecture comparability and reusability through increased traceability. This could offer benefits for design studies in early stages with uncertainty of safety requirements from neighbouring and internal systems. To demonstrate the proposed approach, conceptual fuel cell systems (FuCS) and their respective thermal management systems (TMS) will be used as an illustrative case. Three applications for the FuCS will be defined, each with d

关键词： Fuel Cells Commercial Aircraft Thermal Management system model based system engineering Aviation Technology Aircraft systems Aircraft Safety Aerospace Recommended Practice Energy Transformation Failure Modes and Effects Analysis

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A model-based Approach to Trade-Space Evaluation Coupling Design-ManufacturingSupply Chain in the Early Stages of Aircraft Development

A Model-Based Approach to Trade-Space Evaluation Coupling De...

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AIAA Aviation Forum and Exposition

作者： Donelli, Giuseppa Ciampa, Pier Davide Mello, Jodo M. G. Odaguil, Felipe I. K. Lemos, Gleverson F. C. Cuco, Ana P. C. van der Laan, Ton Nagel, Bjorn German Aerosp Ctr DLR Inst Syst Architectures Aeronaut Hamburg Germany Embraer SA Mfg Dept Sao Jose Dos Campos SP Brazil Embraer SA Res & Dev Dept Sao Jose Dos Campos SP Brazil GKN Aerosp Ctr Competence Design Fokker Aerostruct Papendrecht Netherlands

ISBN: (数字)9781624106101

ISBN: (纸本)9781624106101

Product design and supply chain management are two research domains extensively explored in literature. In the last decades, many studies have highlighted that the integration of these domains is important to increase the profitability and efficiency of companies. However, most of these studies aims at optimizing the supply chain after freezing the design of the product, and hence addressing the supply chain as the following step in product development. This paper presents a value- driven model- based approach that concurrently links product design, manufacturing and supply chain in the frame of aerospace system design. Thus, the challenge is to expand the early design phase of an aircraft to account both for manufacturing choices (e.g. raw materials, manufacturing and assembly processes) and supply chain management (e.g. suppliers' location, production cost per supplier). Three domains - manufacturing, supply chain, overall aircraft design - are selected to investigate all the aspects related to the entire aircraft development, from the initial design to the manufacturing and the assembly, through the aeronautical supply chain. The modelling of these domains and the information flow exchanged among them, is addressed in this paper. The concurrently coupling of these domains results into an enlargement of the alternatives populating the final solutions tradespace, from which decision makers select a solution. The value-based approach is proposed to quantify the multiple-choice criteria and support decision makers in selecting the best alternative, simultaneously considering the aircraft design variables with those of manufacturing and supply chain. Thus, the objective of the value driven model-based approach introduced in this paper, is to provide a quantitative supportive framework that decision makers could use during the early phases of aircraft development, when strategic decisions have to be taken. Concluding, three application cases described in this paper, de

关键词： Commercial Aircraft Aircraft Design Supply Chain Management Aerospace system Aircraft Performance model based system engineering Fuel Consumption Aerospace Company Aircraft Conceptual Design German Aerospace Center

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A model-based Method for Assisting Decision Making Process in Product Development 5

A Model-based Method for Assisting Decision Making Process i...

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5th International Conference on Enterprise systems (ES) - Industrial Digitalization by Enterprise systems

作者： Gebreegziabher, Tewodros Gebrerufael Qiao, Lihong Qie, Yifan Cai, Na Beihang Univ Dept Ind & Mfg Syst Engn 37 Xueyuan Rd Beijing 100191 Peoples R China

ISBN: (纸本)9781538609361

Decision-making process during product design and development has a considerable effect on the enhancement of competitiveness, since it allows cost reduction, quality improvement, and shortening of the time to market. In this paper, a framework of decision support system is investigated and developed throughout the product development process based on the application of a model-based system engineering (MBSE) methodology. In the process it will be clearly shown how SysML (system modelling Language) is used to assist the decision-making process in evaluating candidate design alternatives. The analysis will be carried out in each stage of product development taking in to account the Measure of Effectiveness (MOE's) as a means of setting priorities among alternative product design solutions. At the end of the analysis competent design alternatives will be evaluated through trade-off analysis and ready for decision makers to select the best design solution. The result of the research is thus will provide decision makers with recommendations, predictions of the results of alternative solutions, and other appropriate information to allow selection of the best course of action.

关键词： decision support system model based system engineering measure of effectiveness

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ANDES, the high resolution spectrograph for the ELT: description of an innovative methodology for the verification of the internal and external interfaces using the MBSE approach 11

ANDES, the high resolution spectrograph for the ELT: descrip...

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Conference on modeling, systems engineering, and Project Management for Astronomy XI

作者： Scalera, Marcello A. Zanutta, Alessio Riva, Marco Cabona, Lorenzo Balestra, Andrea Di Marcantonio, Paolo Aliverti, Matteo Pariani, Giorgio Redaelli, Edoardo M. A. Oliva, Ernesto Coretti, Igor Marconi, Alessandro INAF Astron Observ Brera Merate Via E Bianchi 46 Merate LC Italy INAF Astron Observ Padova Vicolo Osservatorio 5 Padua PD Italy INAF Astron Observ Trieste Via G Tiepolo 11 Trieste TS Italy INAF Astron Observ Trieste Largo E Fermi 5 Florence FI Italy

ISBN: (纸本)9781510675216;9781510675223

Recently, the Italian astronomical community has begun adopting model based system engineering (MBSE) for the development of complex instruments. A significant challenge is the establishment of a robust and flexible method to manage all system aspects, among which the interfaces. This paper presents an in-progress method to trace and verify the interfaces of ANDES, the high-resolution spectrograph for the ELT telescope. The method is part of a customization of SysML language capabilities in Cameo systems modeler to meet the needs of the astronomical field. The method uses the nature of the interfaces to populate the interface blocks used to represent the interfaces in the system and to store the numerical and literal values that define the interfaces. The verification process checks if the client side complies with the constraints the host imposes. This whole process employs the use of computational blocks prepared in advance and reused for each interface to lighten the set-up effort and reduce human errors. The application of this methodology shall largely improve interface management leading to more efficient and safer evaluations compared to traditional methods.

关键词： model based system engineering SysML Logical Analysis Physical Analysis Interfaces Automatic Verification Interface Control Document (ICD)

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Comparing Formation Methods for Value models for the NASA Artemis Human Landing system

Comparing Formation Methods for Value Models for the NASA Ar...

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AIAA Science and Technology Forum and Exposition (AIAA SciTech Forum)

作者： Eaton, Casey White, Christopher J. Mesmer, Bryan L. Univ Alabama Huntsville Ind & Syst Engn & Engn Management Huntsville AL 35899 USA

ISBN: (数字)9781624106095

ISBN: (纸本)9781624106095

There are many ways to form value models, but few comparisons of value model formation methods in literature. This paper provides a comparison of two methods that could be used to form a value model: multiple linear regression (a statistical technique using explanatory variables) and the general monotone model, GeMM (a statistical modeling technique designed to deal with "messy" data). Two value models for the NASA Human Landing system (HLS) for the Artemis Program are formed using the two methods, each based on the same system attributes. The ordinal consistency of the value models is analyzed. This research will formally highlight the challenges faced by value modelers in forming a value model and will provide a comparison between two proposed methods, identifying potential benefits, assumptions, and restrictions for each.

关键词： Artemis Program Deep Space Exploration Mars Science Laboratory model based system engineering Value Function Propellant Apollo Lunar Module Particle Swarm Optimization Decision based Design Aerospace engineering

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Assume-Guarantee Reasoning with Scheduled Components 1

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14th International NASA Formal Methods Symposium (NFM)

作者： Liu, Cong Babar, Junaid Amundson, Isaac Hoech, Karl Cofer, Darren Mercer, Eric Collins Aerosp Appl Res & Technol Charlotte NC 28217 USA Brigham Young Univ Provo UT 84602 USA

ISBN: (数字)9783031067730

ISBN: (纸本)9783031067730;9783031067723

Contract-based assume-guarantee reasoning can be used to improve the scalability of model checking by decomposing complex verification problems. In previous work, we demonstrated this approach for systems modeled using the Architecture Analysis and Design Language (AADL) assuming a synchronous model of computation. This allows nondeterministic ordering of parallel components and generally results in an over-approximation of real behavior. This paper describes an approach to incorporating an execution schedule in the assume-guarantee reasoning. We define our semantic interpretation of contracts when components are executed according to this schedule, more accurately reflecting the behavior of the system implementation. We introduce virtual scheduling events which tie AADL timing and execution semantics to contracts. A case study based on a simple unmanned air vehicle surveillance system is provided to illustrate our approach.

关键词： Assume-guarantee Compositional verification model checking model based system engineering AADL Scheduling semantics

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The Study of Design Resource Management and Sharing system Construction in Aviation Product MBSE Environment 5

The Study of Design Resource Management and Sharing System C...

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5th IEEE International Conference on Big Data and Artificial Intelligence (BDAI)

作者： Chen, Jinwen Li, Li Huang, Yimin Liu, Yu Wang, Lei Jiangxi Hongdu Aviat Ind Grp Co LTD Aviat Ind Hongdu 650 Inst Nanchang Jiangxi Peoples R China Beijing Shenzhou Aerosp Software Co Sci & Technol Comm Beijing Peoples R China Tianjin Univ Coll Mech Engn Tianjin Peoples R China

ISBN: (数字)9781665470810

ISBN: (纸本)9781665470810

In order to meet the needs of model-based systems engineering (MBSE) development for aerospace products, a flow-driven R&D resource management and sharing mode was explored based on the existing MBSE design environment of the enterprise. In this way, resource management and sharing system can be constructed to realize collaborative development based on design process and resource fusion and sharing, and improve product development efficiency and innovation ability.

关键词： aviation product model based system engineering design resource process driving

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Digital engineering is too important to be left alone to MBSE Practitioners

Digital Engineering is too important to be left alone to MBS...

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AIAA Aviation Forum

作者： Mannepalli, Rao Leidos 11464 Wildwood Ridge Dr Colorado Springs CO 80921 USA

ISBN: (数字)9781624107047

ISBN: (纸本)9781624107047

Weapon systems critical to national security are increasingly becoming more complex and expensive. The cost overruns alone are estimated to be about half-a-trillion Dollars making it the second largest defense budget in the world. To address this problem DOD introduced the Digital engineering initiative in 2018. Even though its vision and scope are laudable, not all the areas/disciplines involved in realizing the weapon systems are excited. There is a certain poverty of imagination in naming the vision as "Digital engineering." Most people misunderstood it to be an engineering initiative (in particular systems engineering). This paper redefines the term "engineering" in Digital engineering as a process (e.g., engineering a political coup rather than like Mechanical/Electrical/systems engineering), which then addresses all the five pillars of Digital engineering. Another disturbing trend noticed by the author is that the systems engineering community equated model based systems engineering (MBSE) to Digital engineering. This prevents new thinking and thereby limits or negates the vision of Digital engineering. This paper also touches upon the origins of systems engineering at Bell Labs, obsession with the term "model" to mean anything and everything, including a text document or a static picture, and digital twins. It gives practical and useful definitions of "model" and "Digital Twin" and provides examples and some best practices followed in developing them. It also lists some of the disruptive technologies like ChatGPT which potentially could eliminate even the need to write computer programs. These systems can fuse Unstructured, Uncertain, Incomplete, Imprecise, and even Contradictory (UUIIC) information from all sources. This will make the current processes obsolete, including the systems engineering. Finally it presents the lessons learned and some recommendations for the near term including how to prevent the Digital Twins from becoming "Evil Twins"

关键词： Digital engineering model based system engineering Structured Programming Weapon systems Cost Overrun National Security Solar Power Plant Aegis Ballistic Missile Defense system Information Processing RADAR

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