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Training / Education

Model-Based Systems Engineering (MBSE)

2022-05-24
It, however, still remains a challenge to implement MBSE modeling and model-driven technology and application as well as its integration with the industry. ...This course will focus on the concept and meaning of MBSE, SysML modeling technology, model-driven technology and its implementation.
Technical Paper

Feedback on Application of MBSE to an Avionics Subsystem

2018-10-30
2018-01-1922
In this paper, a Model-Based Systems Engineering (MBSE) approach is proposed. The proposed approach relies on SysML models and is composed of modelling tasks to capture requirements and to structure functional interfaces and functions. ...After presenting the pilot case, results are given and discussed on several points: the lessons learned during and after application of the MBSE approach to identify use cases, to define black box scenarios, and to build the top-level functional architecture.
Article

MBSE is transforming aerospace engineering, systems integration

2018-10-29
Editors in SAE International’s Aerospace Product Group had the opportunity to discuss MBSE trends, tools, and benefits, as well as any impediments to adoption and whether MBSE is likely to transform aerospace systems engineering and integration with Dave Shanley, vice president of segment & product marketing management at Jama Software in Portland, Oregon. ...Model-based systems engineering (MBSE) is taking off in aerospace engineering and systems integration workflows worldwide. Editors in SAE International’s Aerospace Product Group had the opportunity to discuss MBSE trends, tools, and benefits, as well as any impediments to adoption and whether MBSE is likely to transform aerospace systems engineering and integration with Dave Shanley, vice president of segment & product marketing management at Jama Software in Portland, Oregon.
Article

Aerospace & defense systems engineering undergoes digital transformation with MBSE

2018-10-16
A growing number of organizations, including leading aerospace and defense (A&D) companies, are implementing model-based systems engineering (MBSE), a practice developing and exploiting a set of related system models that help define, design, and document a system under development – and reaping the benefits of not only increased productivity, agility, and efficiency, but also time and cost savings.
Technical Paper

Model-Based Systems Engineering Methodology for Implementing Networked Aircraft Control System on Integrated Modular Avionics – Environmental Control System Case Study

2018-10-30
2018-01-1943
This paper presents a model-based systems engineering (MBSE) development approach for the so-called “distributed integrated modular architecture” (DIMA). ...In addition, the presented paper provides important insights into the challenges and advantages of the MBSE process over the traditional paper-based specification process.
Technical Paper

Citrus: Model-Based Avionics Development with Zest!

2013-09-17
2013-01-2178
Model Based System Engineering is considered today as the approach that can meet the continually growing complexity of avionics, a challenge that is compounded by constant market pressure (cost, time to market, need for product variants…) For each activity in the product life cycle, tools and technologies supporting an MBSE approach already exist, such as embedded code generation, formal safety analysis, electrical harness design; however, one of the greatest challenges consists in integrating these diverse system development tools into a global framework that ensures the consistency of perspectives and a seamless workflow across processes.
Technical Paper

Modelling and Simulation Tools for Systems Integration on Aircraft

2016-09-20
2016-01-2052
The aim of MISSION is to develop and demonstrate an integrated modeling, simulation, design and optimization framework incorporating Model-Based Systems Engineering (MBSE) principles oriented to the Aerospace industry. This framework will holistically support the design, development and validation process of an aircraft, starting from conceptual aircraft-level design, toward capture of key requirements, system design, software design, integration, validation and verification.
Training / Education

Quality Function Deployment Transforming Voice of the Customer into Engineering Specifications

2022-05-23
This seminar is offered in China only and presented in Mandarin Chinese. The course materials are bilingual (English and Chinese). Currently in the industry, especially within China, product requirement development is more of an experienced-based process rather than a scientific methodology. This course addresses this issue and provides a more process-driven method for better requirement development through the Quality Function Deployment (PFD) methodology.  Real industrial examples are used to demonstrate how to systematically convert voice of the customer data to engineering specifications using QFD. 
Journal Article

Application of Model Based Functional Specification Methods to Environmental Control Systems Engineering

2011-10-18
2011-01-2504
The paper presents an innovative approach for the functional specification of complex and highly integrated aircraft control systems, such as the Environmental Control System (ECS), by applying model based specification methods. Complexity and effectiveness of modern ECS have significantly increased during the last few years along with development of new technologies and innovations in control engineering as well as digital data distribution and processing. Efficient management of cabin air flows on the one hand makes the ECS more energy-saving and on the other hand more complex with regard to its functionality and interaction with other interfaced aircraft systems. Numerous data interfaces to other systems and a high degree of automation are typical for a modern ECS. The aircraft manufacturer specifies the entire ECS functions and its interactions within the aircraft.
Technical Paper

A SysML-Based Methodology in a Concurrent Satellite Design Process

2011-10-18
2011-01-2713
This paper describes an approach for a SysML-based methodology, recently defined and applied at the European Space Agency (ESA). In 2009 a SysML-based methodology based on the European Cooperation for Space Standardization (ECSS) and International Organization for Standardization (ISO) standards was developed in the frame of the European Space Agency (ESA)/European Space Research and Technology Centre (ESTEC) study “System and Software Functional Requirements Techniques” (SSFRT).The SSFRT study investigated the feasibility of the application of model-based system engineering in spacecraft design to support the space system and software development processes, from mission level requirements to software implementation. The use of models to support the system requirements engineering process was aimed at improving the system requirements allocation process toward the software requirements engineering process.
Technical Paper

A Step Closer to Model Based System Engineering: Advanced IT Support Tools for Concurrent Preliminary Design of Space Projects

2011-10-18
2011-01-2710
This paper aims to show how it is possible to blend a Tool Chain approach with a Model Based Engineering Environment approach during preliminary phases of a space project. Attention is not focused on the whole spacecraft lifecycle but on a preliminary phase that is very helpful in itself to test methodology, technologies and processes. This blended model may allow for cost reduction and reduced development times along the supply chain whereas there are heterogeneous IT systems and tools. The aim of this work has been to make engineering data exchange among different engineering groups easier whilst guaranteeing compliancy to a common spacecraft data model. This methodology has been applied to a test case comprising the preliminary design of a Pressurized Lunar Rover (PLR).
Technical Paper

Creation of Failure Modes and Effects Analyses from SysML

2015-09-15
2015-01-2444
This paper describes a method for automated generation of Failure Modes and Effects Analyses from SysML models containing block definition diagrams, internal block diagrams, state transition machines, and activity diagrams. The SysML model can be created in any SysML modeling tool and then an analysis is performed using the AltaRica language and modeling tool. An example using a simple Sensor, Processor, and Actuator shows the approach.
Journal Article

Modeling Space Operations Systems Using SysML as to Enable Anomaly Detection

2015-09-15
2015-01-2388
Although a multitude of anomaly detection and fault isolation programs can be found in the research, there does not appear to be any work published on architectural templates that could take advantage of multiple programs and integrate them into the desired systems. More specifically, there is an absence of a methodological process for generating anomaly detection and fault isolation designs to either embed within new system concepts, or supplement existing schemes. This paper introduces a new approach based on systems engineering and the System Modeling Language (SysML). Preliminary concepts of the proposed approach are explained. In addition, a case study is also mentioned.
Technical Paper

Simulation of Aircraft Virtual Architecture - Bleed Off-Take and ECS

2017-09-19
2017-01-2159
To allow greater confidence in an aircraft system design in an ever increasing complex set of requirements, it becomes important to assess the interactions among systems and sub-systems earlier and with higher confidence. This study presents the Virtual Integrated Aircraft (VIA) methodology, which allows the integration of aircraft systems with virtual means. It aims to complement and precede physical integration, which is usually completed at the end of the validation and integration phase. LMS Imagine.Lab platform provides a means for applying this methodology. A simulation architecture, integrating models from different platforms, is built and simulations are run on a High Performance Computing (HPC) machine to cover multiple scenarios and therefore validate the selected architecture and pre-design in the early system development phases. A balanced selection of equipment, systems and subsystems are essential for the performance, safety, reliability and comfort.
Technical Paper

Novel Framework Approach for Model-Based Process Integration from Requirements to Verification Demonstrated on a Complex, Cyber-Physical Aircraft System

2018-10-30
2018-01-1947
This paper presents a demonstrator developed in the European CleanSky2 project MISSION (Modelling and Simulation Tools for Systems Integration on Aircraft). Its scope is the development towards a seamless integrated, interconnected toolchain enabling more efficient processes with less rework time in todays, highly collaborative aerospace domain design applications. The demonstration described here, consists of an open, modular and multitool platform implementation, using specific techniques to achieve fully traceable (early stage) requirements verification by virtual testing. The most promising approach is a model based integration along the whole process from requirements definition to the verified, integrated (and certified) system. Extending previous publications in this series, the paper introduces the motivation and briefly describes the technical background and a potential implementation of a workflow suitable for that target.
Technical Paper

Conceptual Modeling of Human Processes in a Lunar Systems Architecture

2008-06-29
2008-01-2023
This paper presents a case for supporting the architecting of a conceptual system and its associated human activity with an analytical model. The human activity is treated as a peer to the system's operation using Object Process Methodology (OPM) and uses manned Lunar operations as an example. There is a brief discussion of architecture, architecting, and systems architecture, to set the context for the terminology used to present the modeling context. This early stage analytical modeling in a systems conceptual definition provides a comprehensive means for evaluation of the design for functions it is required to support. The models also provide a consistent basis for the more complex models used later in the systems implementation. Systems modeling is an accepted practice for describing the complex interactions in and among systems, however, the modeling of human activity in conjunction with systems is less well developed.
Journal Article

Estimating Return on Investment for SAVI (a Model-Based Virtual Integration Process)

2011-10-18
2011-01-2576
The System Architecture Virtual Integration (SAVI) program is a collaboration of industry, government, and academic organizations within the Aerospace Vehicle System Institute (AVSI) with the goal of structuring a new integration process that relies on a “single-truth” architectural framework. The SAVI approach of “Integrate, then Build” provides a modern distributed development environment which arrests the propagation of requirements errors through the development life cycle. It does so by capturing design assumptions and shared properties of the system design in an authoritative, annotated architectural model. This reference model provides a common, analyzable framework for confirming that system requirements remain complete, consistent, and correct at all levels of system decomposition. Core concepts of SAVI include extensive use of model-based system engineering tools and use of a “single-truth” reference architectural model.
Technical Paper

Continuity of a System Engineering Referential Repository Applied on an Aerospace Use Case

2012-10-22
2012-01-2142
A major challenge of a System Engineering approach lies in its ability to promote an efficient Process/Method/Tools environment that leads to an efficient and accurate System Referential Repository. The key factor is the definition of a centralized system referential repository that is shared by the various stakeholders involved in the success of industrial projects, including customers, system architects, hardware and software development suppliers, validation and safety teams. This paper describes the development of a use case modeled with the most appropriate tool-chain that fulfills the above System Engineering expectations. Based on standard documents (INCOSE Handbook, ARP4754) and on experience achieved by the development of many System Engineering projects, a methodological approach is defined.
Technical Paper

Using SCADE System for the Design and Integration of Critical Systems

2011-10-18
2011-01-2577
This paper presents the SCADE System™ product line for systems modeling and generation based on the SysML standard and the Eclipse Papyrus open source technology. SCADE System has been developed in the framework of Listerel, a joint laboratory of Esterel Technologies, provider of the SCADE® tools, and CEA LIST, project leader of the Eclipse component, Papyrus. From an architecture point of view, the Esterel SCADE tools are built on top of the SCADE platform which includes both SCADE Suite®, a model-based development environment dedicated to critical software, and SCADE System enabling model-based system engineering. SCADE System includes Papyrus, an open source component (under EPL license), integrated in the modeling platform of Eclipse. Using this integrated modeling platform, both system and software teams share the same environment for system development. Furthermore, other model-based tools can be added to the environment, due to the use of Eclipse.
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