• Title/Summary/Keyword: computational simulation

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Methods for the Modularization of Simulation Model and the Management Scheme of Simulation Scenario for Shipbuilding Process Planning (조선 공정 계획을 위한 시뮬레이션 모델의 모듈화 및 시나리오 처리 방법론)

  • Cha, Ju-Hwan;Ku, Nam-Kug;Roh, Myung-Il;Cho, Doo-Yeoun;Lee, Kyu-Yeul
    • Korean Journal of Computational Design and Engineering
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    • v.17 no.1
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    • pp.17-25
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    • 2012
  • Recently, requests for accurate process planning using simulation have been increasing in many engineering fields including the shipbuilding industry, and many application systems for simulation have been developed. It is difficult, however, for a user to reuse the developed systems, because simulation models in the system are defined by its own method. In addition, the simulation model should be modified whenever a simulation sequence, which is called simulation scenario, is changed. Therefore, in this study, an elementary simulation object is proposed to modularize a simulation model. And the management scheme of simulation scenario is proposed to manage the scenario outside of the simulation models. Also, a simulation template is proposed to increase the development efficiency. To verify the efficiency of the proposed methods, application examples for shipbuilding process planning are implemented.

Architectural Model of Integrated Simulation Environment for the M&S Based Design of Unmanned Ground Combat Vehicle (M&S기반 무인지상전투차량 설계를 위한 통합모의실험환경 아키텍처모델)

  • Choi, Sang Yeong;Park, Jin Ho;Park, Kang
    • Korean Journal of Computational Design and Engineering
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    • v.20 no.3
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    • pp.221-229
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    • 2015
  • M&S (Modeling & Simulation) based design is widely accepted for the development of the future weapon system with better performance in a cheaper and faster way. Integrated simulation environment (ISE) is needed for the M&S based design. On the ISE, system engineers can not only verify design options but also validate system requirements. In this paper, we propose architectural models of the integrated simulation environment (ISE) which incorporates mission effectiveness M&S (Modeling & Simulation), system performance M&S, the optimization model of integrated performances, digital mockup and virtual prototype. The ISE architectural models may be used to implement the ISE for the development of the future unmanned ground combat vehicle.

A Study on Analysis Process of Customer Requirements and Functional Requirements for a Ship Production Simulations (조선해양 생산 시뮬레이션 요구 및 기능 분석 프로세스 연구)

  • Hwang, Ho-Jin
    • Korean Journal of Computational Design and Engineering
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    • v.16 no.6
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    • pp.449-457
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    • 2011
  • The productivity improvement is indispensible to shipbuilding industry for maintaining the world's No. 1. Simulation based production recently has been an issue as prat of efforts to high efficiency production and Korean shipyards requests simulation system tools specialized in a shipbuilding industry. IT convergence project between conventional shipbuilding industry and IT simulation technology has been carried out and integrated simulation framework was proposed as a way to overcome sporadic developments. The framework would provide reusability of kernels and modules and also ensure for expansibilities to other production simulations. The fact that production simulation system should reflect shipyard requirement would be most important. We suggest an analysis process of customer requirements and functional requirements for production simulations. It is partially based on concepts of software engineering and axiomatic design. The process is applied to a design of configuration for simulation framework.

A Study on the development of Schedule based Architectural construction Simulation System (공정관리 프로세스 중심의 시뮬레이션 시스템 개발방향에 관한 연구)

  • Jo, Jin;Kim, Sun-Hyo;Park, Jong-Bae;Kwon, O-Cheol;Yun, Seok-Heon;Paek, Joon-Hong
    • Proceedings of the Computational Structural Engineering Institute Conference
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    • 2007.04a
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    • pp.353-356
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    • 2007
  • The purpose of this study is to propose development of Schedule based Architectural Construction Simulation System. In this study (or paper), we analysis the simulation system concept ant) its characteristics, and analyze the main functions simulation system and the range of functions which are already used currently. Therefore, we could find the limit of the present simulation system. and propose more effective solutions to develop Schedule based Architectural Construction Simulation System.

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Ontology-based Conceptual Model Building Framework for Discrete Event Simulation (온톨로지를 이용한 이산 사건 시뮬레이션의 개념적 모델 구축 지원에 관한 연구)

  • Park, Jisung;Jeong, Sunghwan;Sohn, Mye
    • Korean Journal of Computational Design and Engineering
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    • v.19 no.1
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    • pp.29-40
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    • 2014
  • Conceptual Modeling is the process of abstracting a model from a real or proposed system. It is probably the most important aspect of a simulation study. Relate works show that the elementary developers devoted little time to understanding how the systems actually worked, namely they didn't build appropriate conceptual model. Thus, the result of simulation is inconsistent because it depends on developer's competence. Although many researchers suggested various techniques enabling developer to build conceptual model, there were several limitations. In this study, to overcome the limitations of existing techniques, we proposed COMBINE-DES (COnceptual Model BuildINg framEwork using ontology for Discrete Event Simulation). The COM-BINE-DES supports expediting the conceptual modeling with Solution ontology generated by Domain ontology and Simulation ontology. Moreover, it provides consistent simulation result regardless of repeated modeling.