• 제목/요약/키워드: Simulation Model and Analysis

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Simulator Output Knowledge Analysis Using Neural network Approach : A Broadand Network Desing Example

  • Kim, Gil-Jo;Park, Sung-Joo
    • 한국시뮬레이션학회:학술대회논문집
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    • 한국시뮬레이션학회 1994년도 추계학술발표회 및 정기총회
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    • pp.12-12
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    • 1994
  • Simulation output knowledge analysis is one of problem-solving and/or knowledge adquistion process by investgating the system behavior under study through simulation . This paper describes an approach to simulation outputknowldege analysis using fuzzy neural network model. A fuzzy neral network model is designed with fuzzy setsand membership functions for variables of simulation model. The relationship between input parameters and output performances of simulation model is captured as system behavior knowlege in a fuzzy neural networkmodel by training examples form simulation exepreiments. Backpropagation learning algorithms is used to encode the knowledge. The knowledge is utilized to solve problem through simulation such as system performance prodiction and goal-directed analysis. For explicit knowledge acquisition, production rules are extracted from the implicit neural network knowledge. These rules may assit in explaining the simulation results and providing knowledge base for an expert system. This approach thus enablesboth symbolic and numeric reasoning to solve problem througth simulation . We applied this approach to the design problem of broadband communication network.

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Simulation Analysis of Active Roll Stabilizer for Automotives Based on AMESim

  • 류하오;이재천;여인철
    • 유공압시스템학회:학술대회논문집
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    • 유공압시스템학회 2010년도 춘계학술대회
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    • pp.70-73
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    • 2010
  • In order to provide theoretical analysis for the active roll stabilizer (ARS), the simulation model based on AMESim is developed in the paper. The simplified vehicle rolling motion model is derived firstly, and then the entire ARS control system model is constructed. Furthermore, the simulation is implemented to confirm the roll control effect. The simulation results show that the derived model can be used as theoretical analysis for developing components of ARS control system.

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V 프로세스와 국방시뮬레이션 모델유형을 고려한 RUP 모델 기반의 SBA 효과도 분석 (RUP Model Based SBA Effectiveness Analysis by Considering the V Process and Defense Simulation Hierarchy)

  • 차현주;김형종;이해영
    • 한국시뮬레이션학회논문지
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    • 제24권3호
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    • pp.55-60
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    • 2015
  • 본 논문은 RUP (Relational Unified Process) 모델을 사용한 SBA (simulation-based acquisition)의 효과도를 분석하기 위한 환경을 제시하고 있다. RUP 모델이 갖는 4개의 각 단계는 요구사항 분석, 설계, 개발 및 테스트 모든 단계를 포함할 수 있다. RUP 모델을 적용할 경우 소프트웨어 개발을 각 단계에서 반복되는 개발의 형태로 명시할 수 있다. 이러한 모델의 특성은 국방 영역의 획득에 적절하게 활용할 수 있게 한다. 본 논문에서는 RUP 모델과 V프로세스 모델의 관계를 제시하여 국방획득의 적용성을 제시하였다. 특히, 이러한 이론을 기반으로 하여 어떻게 사용자 인터페이스를 개발 운용할 수 있는지를 제시하였다.

R을 활용한 이윤 최적화 시뮬레이션 모델링 및 결과 분석 (Simulation Modeling of Profit Optimization and Output Analysis using R)

  • 조민호;전용호
    • 한국전자통신학회논문지
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    • 제9권8호
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    • pp.883-888
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    • 2014
  • 시뮬레이션은 현대의 복잡한 환경에서 효율적인 의사 결정을 위한 도구로서 폭넓게 사용되고 있다. 하지만, 대부분은 결과의 분석 보다는 시뮬레이션 모델의 개발 및 수행에 중점을 두고 있다. 본 논문에서는 시뮬레이션 모델링은 물론 결과의 분석도 중요하고 체계적으로 진행되어야 한다는 점을 강조하고, 이를 위하여 통계분석과 다양한 데이터 조작 및 그래픽 기능을 가진 R을 사용하여 이윤 최적화 시뮬레이션에 대한 모델링과 결과 데이터의 조작 및 다양한 그래픽을 사용한 분석 작업을 수행하여 유용성을 입증하였다.

지식기반 객체지향 군수시뮬레이션 모델에 관한 연구 - 초기군수지원성 분석모델을 중심으로 - (Knowledge Based and Object-Oriented Simulation Model for Logistics Analysis)

  • 마호명;최상영
    • 한국국방경영분석학회지
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    • 제22권1호
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    • pp.67-80
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    • 1996
  • Artificial Intelligence(AI) techniques and Object-Oriented(OO) techniques contribute to the simulation modeling of the complex systems. AI techniques are suitable to model human reasoning in the simulation. While OO techniques have advantages of re-usability, maintainability and extendability of the software. Thus, in this paper, we design a knowledge-based object-oriented simulation model, particularly for the logistics analysis of military armor vehicles. The simulation model consists of three modules i.e., scenario, simulation mechanism, and inference engine. The model is designed within the OO paradigm and implemented by using the C++ language. An example case of using the model for the logistic analysis is included.

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System of Systems Approach to Formal Modeling of CPS for Simulation-Based Analysis

  • Lee, Kyou Ho;Hong, Jeong Hee;Kim, Tag Gon
    • ETRI Journal
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    • 제37권1호
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    • pp.175-185
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    • 2015
  • This paper presents a system-of-systems (SoS) approach to the formal modeling of a cyber-physical system (CPS) for simulation-based analysis. The approach is based on a convergence technology for modeling and simulation of a highly complex system in which SoS modeling methodology, hybrid systems modeling theory, and simulation interoperation technology are merged. The methodology maps each constituent system of a CPS to a disparate model of either continuous or discrete types. The theory employs two formalisms for modeling of the two model types with formal specification of interfaces between them. Finally, the technology adapts a simulation bus called DEVS BUS whose protocol synchronizes time and exchange messages between subsystems simulation. Benefits of the approach include reusability of simulation models and environments, and simulation-based analysis of subsystems of a CPS in an inter-relational manner.

시뮬레이션 기법을 통한 자동차용 열 수축 튜브 생산공정모델 개발 (Developing the Performance Analysis Model of the Heat-Shrink-Tube Manufacturing Process using a Simulation Method)

  • 조규성;이승훈
    • 한국시뮬레이션학회논문지
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    • 제19권4호
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    • pp.21-29
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    • 2010
  • 본 연구는 시뮬레이션 방법을 이용한 자동차용 열 수축 튜브 생산 공정을 가상의 생산 공정 모델로 구현하고, 구현된 모델을 기반으로 열 수축 튜브 생산 공정을 분석하는 연구이다. 자동차용 열 수축 튜브 생산 공정을 분석하기 위해서 공정별로 생성되는 데이터를 수집하고, 수집된 데이터 분석을 통한 자동차용 열 수축 튜브 생산 공정을 분석할 수 있는 가상의 생산 공정 모델을 구현하였다. 구현된 모델을 통해 공정 내에서 발생되는 병목현상 파악 및 원인분석, 공정별 사이클 타임, 부품 생산량 등을 산정함으로써 현 공정 분석 및 개선방안을 모색할 수 있어 기업의 생산 공정관리 효율성을 높일 수 있다.

AIM을 이용한 염색/가공 설비 투자 분석 시뮬레이션 (A Simulation Modeling and Analysis of Capital Investment using AIM)

  • 최성훈
    • 한국시뮬레이션학회논문지
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    • 제4권1호
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    • pp.87-97
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    • 1995
  • Simulation techniques are used to improve the productivity of a textile factory. A simulation model is developed for the analysis of investment for dyeing process equipment, such as dryers and bleachers. For modeling and analysis, AIM (Analyzer for Improving Manufacturing) is used. AIM is a manufacturing oriented simulation software developed by Pritsker Corp. AIM provides interactive model building and simulation, automatic animation, and powerful graphic outputs. thereby, drastically reducing modeling efforts and also enhancing communication capabilities.

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건축공간의 행동모델과 공간구조 분석모델에 관한 연구 (A Study on Behavioral Model and Spatial Configuration Analysis model in the Architectural Space)

  • 이종렬
    • 한국디지털건축인테리어학회논문집
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    • 제12권2호
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    • pp.61-66
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    • 2012
  • In space syntax, the mathmatical process to get a integration could be restrictive in understanding spatial configuration since it is based on only one behavior model. In this study, As another approach to spatial configuration analysis based on behavioral model, there is the simulation tracking analysis model that simulates the movements of human in the space and analyze them. In this study, the relationship between integration and behavioral model will be defined and the similarities and the differences between space syntax and the simulation tracking analysis model will be demonstrated. Furthermore, these two analysis models will be understood as a variety of tools that can analyze an object in multiple viewpoints.

통신효과를 고려한 미래지상체계 효과분석 시뮬레이션에 대한 연구 (A Study on Simulation of Future Ground System Effectiveness Analysis Model with Communication Effects)

  • 신선우;이재영;배성민;김종만
    • 한국신뢰성학회지:신뢰성응용연구
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    • 제17권2호
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    • pp.168-180
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    • 2017
  • Purpose: In this research, we develop an effectiveness analysis simulation model using Agent Based Modeling with Communication Effects for the development of a new weapon system. Methods: To describe the future battlefield that has more complexity, we develop Agent Based Modeling to describe communication Effects. We use the communication theory (Path-Loss Model) and the real map. Results: We have compared simulation model with real map and simulation model without real map. The Blue Survival Ratio of simulation model with real map is worse than one without real map since the performance of communication gets lower. Conclusion: There are many studies about the effectiveness analysis of a weapon system. Most of previous researches assumed no communication error. In the real world, however, it's not appropriate assumption. Therefore, this study considers the communication error and shows that it is important factor in the effectiveness analysis.