2017 IEEE International Systems Engineering Symposium (ISSE)最新文献

{"title":"Towards a methodology for systems engineering ontology development — An ontology for system life cycle processes","authors":"Lan Yang, K. Cormican, Ming Yu","doi":"10.1109/SYSENG.2017.8088299","DOIUrl":"https://doi.org/10.1109/SYSENG.2017.8088299","url":null,"abstract":"Knowledge about system life cycle processes constitutes one of the most valuable assets for systems engineering practitioners. While effective management of processes is imperative, it is an onerous task as knowledge is tacit and implicit. Although best practice to ensure the quality of such processes has been documented in the International Standard ISO/IEC/IEEE 15288, it is limited to human-readable descriptions and not a computer interpretable knowledge representation. This leads to a problem with interoperability as process descriptions are interpreted in different ways. Consequently, we must define these processes in an explicit, unambiguous way. The goal of our research is to improve the current situation by advancing the semantic formalism of the standard from natural language description to computer readable knowledge presentation - an ontology. This paper proposes a methodology to realize this approach. The methodology ensures the concepts in the system life cycle processes are defined in an unambiguous, systematic and structured way. Through this methodology, an ontology of these concepts is generated, which provides a classification that enriches the perspectives by using different groupings for different viewpoints and purposes. The study contributes to the creation of a semantic network for systems life cycle processes to allow a more systematic and comprehensive understanding of the relations hidden in the processes. It also supports tailoring the system life cycle processes to different systems engineering projects to ensure the best practice.","PeriodicalId":354846,"journal":{"name":"2017 IEEE International Systems Engineering Symposium (ISSE)","volume":"178 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114098616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A framework for simulation-based optimization demonstrated on reconfigurable robot workcells","authors":"L. Atorf, C. Schorn, J. Rossmann, Christian Schlette","doi":"10.1109/SYSENG.2017.8088278","DOIUrl":"https://doi.org/10.1109/SYSENG.2017.8088278","url":null,"abstract":"Today's trends towards automation and robotics, fueled by the emerging Industry 4.0 paradigm shift, open up many new kinds of control and optimization problems. At the same time, advances in 3D simulation technology lead to ever-improving simulation models and algorithms in various domains, such as multi-body dynamics, kinematics, or sensor simulation. This development can be harnessed for Simulation- based Optimization (SBO), where optimization results can be directly transferred from simulation models to the real world. In this paper, we introduce a formalism and modular framework for model configuration and SBO. We demonstrate the capabilities of our framework by optimizing the sensor layout within a reconfigurable robot workcell from the H2020 project ReconCell, allowing engineers to experiment with different optimizers and parameters. Evaluation of the results proves the usefulness of our approach and shows that the framework can be applied to a wide range of optimization problems without constraining the choice of simulation environment.","PeriodicalId":354846,"journal":{"name":"2017 IEEE International Systems Engineering Symposium (ISSE)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127542959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Architecture-based design for multi-body simulation of complex systems","authors":"Elias Allegaert, Y. Lemmens, G. Rocca","doi":"10.1109/SYSENG.2017.8088282","DOIUrl":"https://doi.org/10.1109/SYSENG.2017.8088282","url":null,"abstract":"As the complexity of high-tech systems continuously increases, engineers look for possibilities to reduce time and cost of the development of these systems. Architecture- based design enables a front-loaded design process with knowledge reuse. By enabling the automatic synthesis of simulation models, different configurations of an architecture can be realized and simulated efficiently. Current practices are found in the automotive and aerospace industry where architecture- based design is used for the automatic synthesis of multi-physics simulation models. In this way, different architecture options and simulation model variations can be efficiently investigated early in the development process. Multi-body simulations are also frequently used in the conceptual design of complex mechatronic systems. However a suitable methodology to synthesize their simulation models is lacking. This paper demonstrates that an architecture-based design approach can be used for the automatic synthesis of multi-body simulation models and a methodology is proposed to efficiently model and synthesize them. However, due to the geometric constraints, geometrical dependencies have been introduced between the sub-systems which requires a correct synthesis sequence that needs to be determined by solving a topological sorting problem. Subsequently, the methodology was evaluated with the conceptual design of an aircraft trailing-edge high-lift system. It was found that, concerning the time efficiency of the proposed approach, a trade-off needs to be made between the time that is saved by the automatic synthesis of simulation models and the time it takes to create the architectures and compatible subsystem models. Finally, the research suggests that an architecture-based design approach can be used for a diverse set of design problems involving different domain specific engineering tools. Therefore, the applicability is not limited to aerospace industry and it can as well bring advantages to other industries where the investigation of conceptual designs is an important but time-intensive activity.","PeriodicalId":354846,"journal":{"name":"2017 IEEE International Systems Engineering Symposium (ISSE)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116021723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Topological modeling of a wind turbine","authors":"Nourhene Abdeljabbar Kharrat, R. Plateaux, J. Choley, M. Chaabane, C. Karra, M. Haddar","doi":"10.1109/SYSENG.2017.8088279","DOIUrl":"https://doi.org/10.1109/SYSENG.2017.8088279","url":null,"abstract":"Undeniably, the focus of several works revolved around finding a process of unification to follow along the modeling of mechatronic systems. This paper is a part of a general research designed to apply topology for the modeling of complex mechatronic systems. Notably, a topological approach to model a Wind Turbine is adopted in this study. The Wind Turbine model under study is modeled using a topological approach based on the concepts of topological collections and transformations in order to dissociate the topological structure from its behavior. In this paper the MGS (Modeling of General Systems) language is employed. In fact, MGS allows the implementation as well as the linking of topological graph and its local behavior laws. The topological collections are adopted to specify the interconnection laws of the model of the Wind Turbine and the transformations are employed to specify the local behavior laws of its components. In order to validate this specific application of the topological approach to a complex mechatronic model, results are presented and compared with those obtained from the application of MODELICA language using Dymola solver. Since satisfactory results are gathered, this topological modeling is used as a unifying model for the Wind Turbine.","PeriodicalId":354846,"journal":{"name":"2017 IEEE International Systems Engineering Symposium (ISSE)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127293887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Large plants failures modeling under variable commissioning scheduling","authors":"T. Addabbo, A. Fort, Rossella Marino, M. Mugnaini, V. Vignoli, Carlo Michelassi, Gilda Pedoto","doi":"10.1109/SYSENG.2017.8088303","DOIUrl":"https://doi.org/10.1109/SYSENG.2017.8088303","url":null,"abstract":"Most of the models proposed in the literature try to model failure rate functions and failure intensities by means of a single model with a reduced number of parameters. If this approach can be effective for controlled situations or simple models it may happen that new models should be introduced in order to describe more accurately the behavior of the cases where non-monotonic failure rate or intensity functions can be experienced. Examples of non-monotonic failure intensity functions are observed in the early life of industrial plants. Reasons for a non-monotonic failure intensity can be various and different in nature, for instance the learning curve of peculiar technical aspects, up to possible managerial decisions on the organization of resources during the commissioning and early production phases. A statistical model of a non-monotonic failure intensity for a complex repairable system can be of some guidance to take informed decisions on the time and resources dedicated to the commissioning and operational phases. Under these conditions new models should be introduced in order to describe more accurately the behavior of the plant where non-monotonic failure rate or intensity functions can be experienced. In this paper the authors compare two Non Homogenous Poisson Process (NHPP) based on piecewise functions with a newly proposed one relying on a modified Weibull probability density function which can be analytically solved.","PeriodicalId":354846,"journal":{"name":"2017 IEEE International Systems Engineering Symposium (ISSE)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115093350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An efficient coverage algorithm for use in macrocell-small cell systems","authors":"Yao-Liang Chung","doi":"10.1109/SYSENG.2017.8088262","DOIUrl":"https://doi.org/10.1109/SYSENG.2017.8088262","url":null,"abstract":"The deployment of small cell base stations within the coverage area of a macrocell base station serves as an important means of increasing energy efficiency. Furthermore, such a deployment also constitutes a key technology for future communication network markets. There is a shortage of research, however, on how to efficiently solve the problem of coverage holes (that is, specific locations or areas in which a user is not able to get an adequate signal from the wireless network) when such a network architecture is used. In this study, we propose an efficient coverage algorithm for use in such macrocell-small cell network systems. The proposed algorithm is able to provide users with comprehensive wireless signal coverage in various scenarios, while also avoiding unnecessary power consumption. Simulation results demonstrate that the proposed algorithm can provide much better overall system performance than conventional ones.","PeriodicalId":354846,"journal":{"name":"2017 IEEE International Systems Engineering Symposium (ISSE)","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124285696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Easy implementation of sensing systems for smart living","authors":"P. Bellagente, C. Crema, A. Depari, A. Flammini, Giovanni Lenzi, S. Rinaldi, A. Vezzoli","doi":"10.1109/SYSENG.2017.8088304","DOIUrl":"https://doi.org/10.1109/SYSENG.2017.8088304","url":null,"abstract":"Nowadays system architectures based on Internet of Things (IoT) are becoming a pervasive topic in several applications. Smartphones integrate a growing number of high quality sensors and often they are used as gateways for external sensors, wearable sensors or sensors for ambient assisted living. Several recent projects about smart cities and smart living are experiencing sensory data management by means of smartphones, resulting in large data flow and battery power concerns. In these architectures, using sensors embedded within the smartphone is trivial, and several reliable Applications (APPs) are available; on the contrary, APPs managing external sensors have high Source Line Of Code (SLOC), especially if sensors of different vendors are considered and if the APPs need a high level of personalization. In this work, a solution to easily develop Android APPs handling remote sensors, even of different type and manufacturers, is employed in the context of a smart living application. The proposed approach is based on a framework that allows achieving an easy development system architecture, exploiting the Bluetooth 4.0-4.1 technologies. First implementations focused on safety in a Smart City projects are discussed.","PeriodicalId":354846,"journal":{"name":"2017 IEEE International Systems Engineering Symposium (ISSE)","volume":"167 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122840538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"MBSE approach to support and formalize mission alternatives generation and selection processes for hypersonic and suborbital transportation systems","authors":"R. Fusaro, D. Ferretto, N. Viola","doi":"10.1109/SYSENG.2017.8088275","DOIUrl":"https://doi.org/10.1109/SYSENG.2017.8088275","url":null,"abstract":"This paper deals with the application of a Model Based Systems Engineering (MBSE) approach to support and formalize mission alternatives generation and selection processes aimed at developing operative hypersonic and suborbital transportation systems. Due to the high-level of complexity of these ultimate aerospace initiatives, a MBSE approach demonstrates to be very effective to allow reduction of risk of inconsistencies, of unappropriated or incompatible design choices, reducing the overall time and effort spent in design and development phases. After a brief introductory section aimed at providing some details about these kinds of vehicles, both in terms of enabling technologies and missions, a step-by-step innovative methodology based on a MBSE approach to carry out mission analysis is proposed. All along the methodology description, the application to a specific reference case study of a suborbital single-stage vehicle aimed at performing commercial parabolic flight services is proposed. Eventually, the selected mission baseline is detailed and the major benefits and further application of this innovative integrated methodology are reported and discussed.","PeriodicalId":354846,"journal":{"name":"2017 IEEE International Systems Engineering Symposium (ISSE)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123188601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Designing of an e-learning system using adaptivity and gamification","authors":"E. Jianu, A. Vasilățeanu","doi":"10.1109/SYSENG.2017.8088270","DOIUrl":"https://doi.org/10.1109/SYSENG.2017.8088270","url":null,"abstract":"This paper proposes the design of an adaptive e- learning system with gamification elements. In the context of the increasing need to keep learners motivated among so many distractions, our project aims to help a user acquire knowledge at his own pace, in a captivating environment and as flexible as possible. To achieve that the solution focuses on the course model, adaptive questions and a reward system using levels and points. The course model is based on knowledge items. Questions test the understanding of the knowledge items in the course. The questions' difficulty is personalized on the progress of each learner. The project was tested in a campus over a course of one week with positive results.","PeriodicalId":354846,"journal":{"name":"2017 IEEE International Systems Engineering Symposium (ISSE)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120967120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The usage of a system engineering approach for integrating machining constraints in the upstream design stage","authors":"M. Borchani, M. Hammadi, N. B. Yahia, J. Choley","doi":"10.1109/SYSENG.2017.8088254","DOIUrl":"https://doi.org/10.1109/SYSENG.2017.8088254","url":null,"abstract":"In the early design stage, designers with narrow knowledge of machining would produce a rough part design with arbitrary geometry. This leads to iterative loops between designers and manufacturing engineers when evaluating the manufacturability of a part belonging to a complex system. To overcome this issue, the introduction of set based concurrent engineering approach, built on SysML diagrams with machining constraints in the upstream design stage is induced. This approach will decrease the loops between engineers, and lessen the lead time. This paper presents an advanced approach based on SysML diagrams. First, it will highlight the characteristics of each machining feature of an automotive part belonging to the air conditioning system (dimensions, geometrical constraints and surface roughness), then it will point out other constraints related to production system such as cutting and machine tools constraints. Later, machining operations corresponding to each feature must be classified at a certain order according to precedence relationship or anteriorities based on technical or economical restraints. At this phase, a machining expert must intervene to settle the order of execution which belongs to individual operation. This will bring out many sequencing solutions. Lastly each of the previous solutions must be bonded to its specific lead time and production cost. A case study concerning an electronic throttle body will be posed to illustrate various stages of this concurrent engineering approach.","PeriodicalId":354846,"journal":{"name":"2017 IEEE International Systems Engineering Symposium (ISSE)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124597847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}