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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of the Korea Society for Simulation
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Journal DOI :
The Korea Society for Simulation
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Volume & Issues
Volume 23, Issue 4 - Dec 2014
Volume 23, Issue 3 - Sep 2014
Volume 23, Issue 2 - Jun 2014
Volume 23, Issue 1 - Mar 2014
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DEV&DESS-Based Real-Time Distributed Simulation Method Using DDS for Design Verification of Cyber-Physical Systems
Kim, Jin Myoung ; Lee, Hae Young ; Chun, Ingeol ; Kim, Won-Tae ;
Journal of the Korea Society for Simulation, volume 23, issue 2, 2014, Pages 1~6
DOI : 10.9709/JKSS.2014.23.2.001
CPS (cyber-physical systems) which consists of connected and diverse embedded systems and physical systems are a new paradigm. Traditional systems were usually considered to be passive and dumb parts in physical systems, but with CPS, we have to take into account what are being moved or changed in the physical systems. So, as increasing the complexity of CPS, potential errors in the systems also increase. In this paper, for enhancing the reliability of CPS, we exploit an executable-model-based design methodology and propose a distributed simulation method to verify the design of CPS. For the design of the systems including discrete and continuous factors, we apply DEV&DESS formalism and simulate models in distributed simulation environments through DDS middleware. We also illustrate the applications of CPS with our modeling tool.
System Operational Performance Analysis for Wire-Guided Torpedo
Kim, Taekyoo ;
Journal of the Korea Society for Simulation, volume 23, issue 2, 2014, Pages 7~15
DOI : 10.9709/JKSS.2014.23.2.007
System operational performance analysis for wire-guided torpedo is intended to provide technical analysis data for requirements analysis and development, which, as a consequence, supports the requirements definition activity for systems engineering. Technical approach and analysis example are presented including problem definition, formulation, modeling, simulation and analysis results that are applied to the on-going Next Generation Torpedo project.
Development and Application of Thermal hydraulic Simulation Model for Aircraft-EHA(Electro-Hydrostatic Actuator)
Noh, Dae-Kyung ; Yoon, Young-Whan ; Kim, Dae-Hyun ; Kim, Sang-Seok ; Kim, Sang-Beom ; Park, Sang-Joon ; Choi, Kwan-Ho ; Jang, Joo-Sup ;
Journal of the Korea Society for Simulation, volume 23, issue 2, 2014, Pages 17~24
DOI : 10.9709/JKSS.2014.23.2.017
This study attempts to show an example of developing and applying thermal hydraulic simulation model for Aircraft-EHA. The overview of research procedure is as in the following. First, The unit hydraulic simulation model, which reflects physical quantity answering engineer`s purpose is developed. Second, The unit hydraulic simulation model is combined, and then branched out to EHA hydraulic model. Third, a simulation model including flow thermal is developed, and then oil temperature rise time according to `initial temperature and load` is examined. Finally, the master graph that can be used for designing EHA combined with thermal hydraulic analysis results in several cases is compiled, and suggested. AMESim, commercial software, is used through whole procedure.
Analysis of the GOP Border security systems of the ROK Army by Using ABMS and NOLH design
Oh, Kyungtack ;
Journal of the Korea Society for Simulation, volume 23, issue 2, 2014, Pages 25~33
DOI : 10.9709/JKSS.2014.23.2.025
In this study, the border security problem of the ROK Army is examined by applying the agent-based modeling and simulation (ABMS) concept as well as its platform, MANA. Based on the approximately optimized behavior of the infiltrator obtained using genetic algorithm (GA), we evaluate the GOP border security system which consists of human resources, surveillance, as well as command and control (C2) systems. We use four measures of effectiveness (MOEs) to evaluate its performance, and we apply a near optimal latin hypercube (NOLH) design to deal with the large number of factors of interest in our model. By using a NOLH design, our simulation runs are implemented efficiently. We hope the results of this study provide valuable data for deciding the configuration of the border security system structure and the number of soldiers assigned in the platoon.
A Study on Development of Wargame Model`s Standard Combat Organization Function
Lee, Ki-Taek ; Kwon, Ojeong ; Jung, Bong-Ryong ;
Journal of the Korea Society for Simulation, volume 23, issue 2, 2014, Pages 35~46
DOI : 10.9709/JKSS.2014.23.2.035
This study investigates the wargame model application of SCO(Standard Combat Organization) concept and function for the first time. Firstly, we examine the combat organization function of wargame models suggested by published theses and research papers, and then analyze input processes and detail function of GORRAM(Ground Operation Resources Requirement Model) combat organization that is related to wargame logic. Secondly, we also reflect developed SCO algorithm and function, as follows. We defined SCO concept, and developed UI(User Interface) design and algorithm using main functions that are deducted by analyzing of existing combat organization. This algorithm consists of process, SCO, and error check algorithms. Finally, we analyzed the results of statistic verification on input time reduction and user convenience of combat organization function. Therefore, this study contributes to improving input time and user convenience of combat organization, as well as structuring new function of wargame model through the application of SCO concept and function.
Modeling and Analysis for Efficient Joint Combat Fire Operation of Army Artillery and Army Aviation
Lim, Jong-Won ; Kwon, Hyog-Lae ; Lee, Tae-Eog ;
Journal of the Korea Society for Simulation, volume 23, issue 2, 2014, Pages 47~55
DOI : 10.9709/JKSS.2014.23.2.047
Most combat simulation models, including Korean Army`s combat models for simulation analysis, have too much limitations to be used for analysis of complex combats like joint combat fires. We analyze requirements for modeling and simulation of Fire-Eagle, which is a joint combat fire model of ground combat fires and army aviation. We then propose a simulation model for Fire Eagle and derive operational strategies for improving the joint combat fire. To do these, we analyze effectiveness of specific operational plans and scenarios by using the simulation model. We demonstrate ways of developing efficient and effective operational plans from the simulation experimental results.
A Framework to Construct the Aviation Engagement Simulation Model based on the Synthetic Battlefield in the HLA/RTI System
Ham, Won K. ; Yang, Karam ; Choi, Jong-Yeob ; Park, Sang C. ;
Journal of the Korea Society for Simulation, volume 23, issue 2, 2014, Pages 57~64
DOI : 10.9709/JKSS.2014.23.2.057
This paper proposes a framework to construct the synthetic battlefield based aviation engagement simulation model for the distributed system. The proposed framework has the synthetic battlefield in the HLA (High Level Architecture)/RTI (Run-Time Infrastructure) based distributed system to reflect environmental effects into the aviation engagement simulation model. In an aviation engagement, the environment affects weapon systems such as detection and movement. Therefore, environmental effects are required to be reflected in the simulation. However, former researches are inadequate for complex operations of weapon systems that are requirements of the engagement simulation. Thus, the construction of the engagement simulation system of which reflects environmental effects based on environmental data is still difficult. The main objective of this paper is to propose a framework to solve the difficulty and constructs an example system based on the proposed framework.
Fuzzy Logic based Next Hop Node Selection Method for Energy Efficient PVFS in WSN
Lee, Jae Kwan ; Nam, Su Man ; Cho, Tae Ho ;
Journal of the Korea Society for Simulation, volume 23, issue 2, 2014, Pages 65~72
DOI : 10.9709/JKSS.2014.23.2.065
Sensor nodes are easily compromised by attacker when which are divided in open environment. The attacker may inject false report and false vote attack through compromised sensor node. These attacks interrupt to transmission legitimate report or the energy of sensor node is exhausted. PVFS are proposed by Li and Wu for countermeasure in two attacks. The scheme use inefficiency to energy of sensor node as fixed report threshold and verification node. In this paper, our propose the next neighbor node selection scheme based on fuzzy logic system for energy improvement of PVFS. The parameter of fuzzy logic system are energy, hops, verification success count, CH select high the next neighbor node among neighbor nodes of two as deduction based on fuzzy logic system. In the experimental, our proposed scheme was improvement to energy of about 9% compare to PVFS.
An Experience-Type Car Maintenance Training System based on Logic Simulation
Park, Gil-Sik ; Park, Dae-Sung ; Park, Ki Hyun ; Kim, Juntae ;
Journal of the Korea Society for Simulation, volume 23, issue 2, 2014, Pages 73~84
DOI : 10.9709/JKSS.2014.23.2.073
Recently, researches on the application of IT technology to various fields including traditional industries are becoming more popular. One challenge in the field of education is to understand the way how technology may support learning, and research on self-directed learning has been accelerated by integrating education and IT technology. The process of self-directed learning in e-learning applications such as Car Maintenance Training is very difficult and complicated. Previous studies on car maintenance training applications provided simple training scenarios with predetermined action sequences. To incorporate self-directed learning in car maintenance training, however, trainees must be able to perform various maintenance operations himself and experience various situations. To provide such functionality, it is necessary to obtain an accurate response for various operations of trainees, but it requires complicated calculations with respect to varieties in the electrical and mechanical processes of a car. In this paper, we develop a logic simulation agent using JESS inference engine in which self-directed learning is achieved by capturing the behavior of trainees and simulating car operations without complicated physical simulations in car maintenance training.