• Title/Summary/Keyword: 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
    • Proceedings of the Korea Society for Simulation Conference
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    • 1994.10a
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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

  • Liu, H.;Lee, J.C.;Yo, Y.C.
    • 유공압시스템학회:학술대회논문집
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    • 2010.06a
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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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RUP Model Based SBA Effectiveness Analysis by Considering the V Process and Defense Simulation Hierarchy (V 프로세스와 국방시뮬레이션 모델유형을 고려한 RUP 모델 기반의 SBA 효과도 분석)

  • Cha, HyunJu;Kim, Hyung Jong;Lee, Hae Young
    • Journal of the Korea Society for Simulation
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    • v.24 no.3
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    • pp.55-60
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    • 2015
  • This paper presents an SBA (simulation-based acquisition) effectiveness analysis environment using the RUP (Relational Unified Process) model. The RUP model has 4 phases which cover the whole development steps such as requirement analysis, design, development and test. By applying the RUP model, SW development can be represented with the iterations of developments for each phase. Such a characteristics of the model would make the model suitable for defense acquisition. In this paper, we show the relation between the RUP model and V process model, which is the foundation for defense acquisition. In order to show how the model could be applied to SBA effectiveness analysis, graphical user interfaces for the analysis are presented at the end of the paper.

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

  • Cho, Min-Ho;Jeon, Yong-Ho
    • The Journal of the Korea institute of electronic communication sciences
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    • v.9 no.8
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    • pp.883-888
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    • 2014
  • Simulation is now using in various area as an effective decision analysis tool in complex environment of today. But, There is a focus to the simulation model development and execution better than result analysis. This article will emphasis to the importance of result analysis apart from model development in simulation, and will use R package for profit optimization simulation. R has a various function in statistic analysis and data manipulation, graphic display. So this research can show the value of R as a tool for simulation.

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

  • 마호명;최상영
    • Journal of the military operations research society of Korea
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    • v.22 no.1
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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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    • v.37 no.1
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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.

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

  • Cho, Gyu-Sung;Lee, Seung-Hoon
    • Journal of the Korea Society for Simulation
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    • v.19 no.4
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    • pp.21-29
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    • 2010
  • This research suggests a simulation model regarding the performance analysis of the Heat-Shrink-Tube manufacturing process using a simulation method. To analyze this study, firstly, we have collected the operating data from 'A' automobile parts company. Secondly, we have analyzed the collected data to apply a simulation model. Thirdly, we have developed a simulation model to experiment the process analysis and the line balancing methodology. The proposed simulation model can be executed by various input data without changing the simulation model and the performance of the Heat-Shrink-Tube Manufacturing system can be calculated by this model.

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

  • 최성훈
    • Journal of the Korea Society for Simulation
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    • v.4 no.1
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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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A Study on Behavioral Model and Spatial Configuration Analysis model in the Architectural Space (건축공간의 행동모델과 공간구조 분석모델에 관한 연구)

  • Lee, Jong-Ruyl
    • Journal of The Korean Digital Architecture Interior Association
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    • v.12 no.2
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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.

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

  • Shin, Sunwoo;Lee, Jaeyeong;Bae, Sungmin;Kim, Chongman
    • Journal of Applied Reliability
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    • v.17 no.2
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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.