An architectural framework for distributed naval ship systems

Brefort, Dorian; Shields, Colin P.F.; Jansen, Agnieta Habben; Duchateau, Etienne; Pawling, R; Droste, Koen; Jasper, Ted; Sypniewski, Michael J.; Goodrum, Conner; Parsons, M. A.; Kara, Mustafa Yasin; Roth, Mark; Singer, David; Andrews, David; Hopman, Hans; Brown, Alan J.; Kana, Austin A.

doi:10.1016/j.oceaneng.2017.10.028

Cited by 33 publications

(20 citation statements)

References 14 publications

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“…24 This is specially true taking into account the increase of interconnected and interdependent elements aboard modern vessels. 25 The Integrated Platform Control System (IPCS) has the task of controlling and regulating all the systems, including those related to propulsion.…”

Section: Description Of the Warship And Its Electric Consumptionmentioning

confidence: 99%

Analysis of key variables for energy efficiency in warships

Carrasco¹,

Bendaña

Paredes

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part M:

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The purpose of this work is to investigate the effect of environmental variables on the electric energy expenditure of a typical surface warship. Studies with similar objectives are much more frequent for merchant ships, but warship operations have peculiarities that will be emphasised. In particular, they spend large fractions of their life cycle at port, during which the vessel remains active. First, a discussion of the embarked systems is presented, pointing out the importance of auxiliary systems and, in particular, heating, ventilation and air conditioning. Quantitative estimates of the energy consumption of those systems are provided. Then, using data taken during real operations of a frigate of the Spanish Navy, correlations are computed between power consumption and different environmental variables. As a novelty, the analysis is carried out separating the different modes of operation of the ship. This leads to interesting conclusions, including a considerable positive correlation between seawater temperature and fuel consumption when the vessel is in port. The effect of a moored ship on the surrounding seawater temperature is studied by a numerical computation. The results suggest that the position of sea chests may be consequential for energy efficiency.

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Section: Description Of the Warship And Its Electric Consumptionmentioning

confidence: 99%

Analysis of key variables for energy efficiency in warships

Carrasco¹,

Bendaña

Paredes

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part M:

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“…and platform systems. The extent to which these systems can meet their requirements needs to be assessed and maximised during the design of the ship, also for damaged situations [3], [6].…”

Section: Vulnerability Reduction Of Distributed Systemsmentioning

confidence: 99%

Towards a novel design perspective for system vulnerability using a Markov chain

Jansen

Duchateau²,

Kana

2018

Proceedings of the International Naval Engineering Conference and Exhibition (INEC)

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In order to investigate to which extent naval ships can execute their operational scenario after damage, an early stage assessment of the vulnerability of distributed systems needs to be carried out. Such assessments are currently mostly done by evaluating the performance of predefined concepts. However, such an approach does not necessarily lead to the most desirable solution, since solutions outside the scope of the designer’s preconceived ideas or experience are inherently hard to investigate. This paper therefore proposes several steps towards an approach that enables a vulnerability assessment that is independent of predefined concepts. This is done by incorporating several additions to an existing system vulnerability approach developed by the authors, using a Markov chain. With this approach there is no longer a need for modelling individual hits or damage scenarios. Whereas the approach has previously been shown in concept, this paper introduces three improvements that contribute to the applicability of the approach: 1)it is scaled up in order to model a larger number of compartments and distributed systems, 2) the hit probabilities for different compartments can be adjusted, and 3) it is shown how the availability of main ship functions can be derived from the availability of individual connections. A test case that compares two powering concepts (conventional and full electric powering) of a notional Oceangoing Patrol Vessel (OPV) is provided to illustrate the principles behind the improvements. From the results the two main contributions of this paper can be obtained: 1)the possibility to assess the system vulnerability for different levels of required residual capacity at different impact levels, and 2) and the quantitative nature of the results, aiding ship designers and naval staff with understanding the consequences of various concepts on the system vulnerability.

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“…Em função disso e da contínua evolução tecnológica, o setor de construção naval tem demandado por novas soluções nesta área, pois similarmente a outros setores industriais, há uma maior pressão por resultados de maior qualidade em um menor tempo. Essa necessidade associada a complexidade dos projetos nesta área é discutido por diversos autores na literatura (BREFORT et al, 2018) (Chalfant 2015) cuja premissa principal é envidar maiores esforços nas primeiras etapas do projeto de navios a fim de identificar potenciais riscos e dificuldades.…”

Section: Projeto De Naviosunclassified

“…Ressalta-se que muitos trabalhos presentes na literatura se referem softwares de auxílio ao projeto nas etapas de early-stage design 5 (projeto inicial) (BREFORT et al, 2018) (CHALFANT, 2015) (CHALFANT et al, 2012) (GINN et al, 2017, pois nas duas primeiras fases do projeto há um grande volume de informações dispersas entre os projetistas. Isto ocorre devido à quantidade de subsistemas a serem definidos associados a diferentes possibilidades em termos de equipamentos e funcionalidades a serem consideradas.…”

Section: Projeto Preliminarunclassified

“…Cabe ressaltar que muitos dos artigos da literatura discutem soluções para "projeto em fase inicial" ou early-stage design. Nos trabalhos analisados, a acepção deste conceito remete ao "Projeto Preliminar" (BREFORT et al, 2018), contudo há também a ideia de que todo o trabalho desenvolvido anterior a fase de produção possa ser considerado como early-stage design (Chalfant 2015).…”

Section: Processo De Obtenção Por Outros Clientesunclassified

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Modelagem e análise de sistemas de propulsão naval: abordagem baseada em sistemas híbridos.

Obadowski¹

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Resumo O projeto de submarinos convencionais demanda uma ampla variedade de conhecimentos nas minhas diversas áreas da engenharia, como elétrica, mecânica, naval, além de subáreas específicas como termodinâmica, hidrodinâmica, hidrostática, engenharia estrutural, distribuição de energia elétrica, processos químico-físicos. O que acaba por caracterizar o projeto de submarinos como sendo um de um sistema complexo, pois não só consiste de várias áreas do conhecimento, como também profissionais com diferentes experiências. Na área de projetos navais, há um esforço por se desenvolver softwares, técnicas e formalismos que auxiliem na resolução dos desafios da área, visto que com o crescimento das tecnologias miniaturizadas, computação da nuvem e introdução dos conceitos da Indústria 4.0, há espaço para novas abordagens. Em outros ramos industriais, existem formalismos para os chamados sistemas complexos, como as Redes de Petri Predicado Transição Diferencial Orientadas a Objetos (PTD-OO), as quais permitem que sistemas de diferentes naturezas sejam tratados conjuntamente. Na área naval, este tipo de modelagem se traduz em oportunidades de inovação nas áreas de projetos preliminares e avaliação de requisitos durante as primeiras fases de um projeto. Ao longo deste trabalho, são apresentados conceitos atinentes às redes de Petri, ao projeto naval e o desenvolvimento de um modelo em Redes de Petri PTD-OO dos sistemas de propulsão e de eletricidade de um submarino convencional com a finalidade de avaliar a adequabilidade deste formalismo para este sistema.

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An architectural framework for distributed naval ship systems

Cited by 33 publications

References 14 publications

Analysis of key variables for energy efficiency in warships

Analysis of key variables for energy efficiency in warships

Towards a novel design perspective for system vulnerability using a Markov chain

Modelagem e análise de sistemas de propulsão naval: abordagem baseada em sistemas híbridos.

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