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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 22, Issue 4 - Dec 2013
Volume 22, Issue 3 - Sep 2013
Volume 22, Issue 2 - Jun 2013
Volume 22, Issue 1 - Mar 2013
Selecting the target year
Development of Underwater Warfare Models on the Naval Weapon Systems
Han, Seungjin ; Lee, Minkyu ;
Journal of the Korea Society for Simulation, volume 22, issue 4, 2013, Pages 1~9
DOI : 10.9709/JKSS.2013.22.4.001
ADD (Agency for Defense Development) has developed the naval warfare simulation environment (QUEST), this paper describes the model library of naval weapon systems for the application of underwater warfare simulation included in the QUEST. Models are basically developed in order to measure the effectiveness and tactical development of underwater engagement between ships and weapons. Analyzing the mission space of underwater engagement and the functionality of the legacy models, we define standards of the model structure and developed the model components. Each components are the well-defined environment, system, subsystem, algorithm models, and the interfaces are defined between them. Users can construct a model in an efficient way to various warfare scenarios using the re-usable model components and co-work with the common model library.
Development of C2 Virtual Linked Simulator For Engineering and Engagement Level Battle Experimentation
Lee, Sangtae ; Lee, Seungyoung ; Hwang, Kun-Chul ; Kim, Saehwan ; Lee, Kyuhyun ;
Journal of the Korea Society for Simulation, volume 22, issue 4, 2013, Pages 11~19
DOI : 10.9709/JKSS.2013.22.4.011
The Korean naval weapon systems, combat experiments establish the concept of Battle operations, and create the future of the new weapons system. Doctrine development and training as well as ranging from experiments for evaluate the performance of mission operations for combat experiments are used. The battle lab is effectively support tool for the Korean Naval battle experiments. The battle lab is through a dedicated testing facility and to build efficient and effective simulation-based acquisition supporting environment. In this paper, the ship / submarines C2 operations virtual simulator was developed to support the concept of Battle operations of naval combat experiments in training and tactical development. The ship C2 operations virtual simulator makes the anti-ship and anti-aircraft the engagement scenario for performed experiments using the SADM. The submarines C2 operations virtual simulator makes the anti-submarine engagement scenario for performed experiments using EAS. EAS System was created before reuse. EAS system by modifying the additional interfaces HLA-RTI has been reused. Reflected in the tactics and training after analysis of the results through the battle experiment. Also increase training fidelity through operator involvement. The anti-ship and anti-aircraft system architecture (SADM) and anti-submarine system architecture (EAS) requires unique design of system framework since two separate architectures should be integrated into a system. An C2 virtual linked architecture was used to integrate different system architecture. A C2 virtual linked software framework, designed that have integrated protocol for battle experimental linkage and battlefield visualization environment.
A Study on Modified PSO for the Optimization of Stochastic Simulations
Kim, Sunbum ; Kim, Kunghoon ; Lee, Donghoon ;
Journal of the Korea Society for Simulation, volume 22, issue 4, 2013, Pages 21~28
DOI : 10.9709/JKSS.2013.22.4.021
This paper describes the method to solve the optimization problems for stochastic simulation which is represented by military simulations. For this reason, the test fitness function reflecting the characteristics of military simulations, complex and stochastic results, is defined and PSO is used to solve the test fitness function. To control the known weak point of PSO for stochastic simulations, this paper proposes a technique which reevaluates the value of global optimum. By using the technique, the result shows notable improvements. From the simulation results, interactions among the calculation conditions which affect the accuracy and speed of optimization are analyzed. And the strategy for the optimization of stochastic simulations is proposed.
Framework and Tools for Rapid M&S Component Development and Reusability
Lee, Yong Heon ; Cho, Kyu Tae ; Lee, Seung Young ; Hwang, Keun Chul ; Kim, Sae Hwan ;
Journal of the Korea Society for Simulation, volume 22, issue 4, 2013, Pages 29~38
DOI : 10.9709/JKSS.2013.22.4.029
Modeling and simulation technology is being used in various fields. Especially in the field of military, Simulation-Based Acquisition (SBA) is recognized as a essential policy. To effectively carry out SBA, modeling and simulation techniques should be applied in the whole life-cycle for the weapon system development, and the framework and tools which can help the rapid component development and reusability are needed. In this research, we use the simulation framework based on modeling formalism for enhancement of reusability and a GUI-based modeling environment for rapid M&S component development. The Proposed framework can act as plug-in components on the basis of XML-based object model, so that the flexible design is possible for the change of the model and simulation structure. In addition, our methods are effective to implement the functions for supporting simulation such as the model data logging and communication with external systems. In this paper, we describe an architecture and functions for the framework and tools.
The DEVS Integrated Development Environment for Simulation-based Battle experimentation
Hwang, Kun-Chul ; Lee, Min-Gyu ; Han, Seung-Jin ; Yoon, Jae-Moon ; You, Yong-Jun ; Kim, Sun-Bum ; Kim, Jung-Hoon ; Nah, Young-In ; Lee, Dong-Hoon ;
Journal of the Korea Society for Simulation, volume 22, issue 4, 2013, Pages 39~47
DOI : 10.9709/JKSS.2013.22.4.039
Simulation based Battle Experimentation is to examine the readiness for a battle using simulation technology. It heavily relies on the weapon systems modeling and simulation. To analyze the characteristics and complexity of the weapon systems in the experiment, the modeling & simulation environment has to be able to break down the system of systems into components and make the use of high fidelity components such as real hardware in simulation. In that sense, the modular and hierarchical structure of DEVS (Discrete EVent System Specification) framework provides potentials to meet the requirements of the battle experimentation environment. This paper describes the development of the DEVS integrated development environment for Simulation based Battle Experimentation. With the design principles of easy, flexible, and fast battle simulation, the newly developed battle experimentation tool mainly consists of 3 parts - model based graphical design tool for making DEVS models and linking them with external simulators easily through diagrams, the experiment plan tool for speeding up a statistic analysis, the standard components model libraries for lego-like building up a weapon system. This noble simulation environment is to provide a means to analyze complex simulation based experiments with different levels of models mixed in a simpler and more efficient way.
Agent-based SAF Modeling Tool for DEVS M&S
Shin, Suk-Hoon ; Park, Kang-Moon ; Lee, Eun-Bog ; Chi, Sung-Do ; Han, Seung-Jin ;
Journal of the Korea Society for Simulation, volume 22, issue 4, 2013, Pages 49~55
DOI : 10.9709/JKSS.2013.22.4.049
Recently the CGF/SAF (Computer Generated Force / Semi-Automated Force) technology has been getting attention to deal with the increasing complexity in a DM&S(Defence Modeling and Simulation) environment. OneSAF is one of well-known CGF/SAF systems, however, it is not able to support the DEVS framework which is an advanced discrete event based modeling and simulation environment. Especially, most DM&S systems in Korea has been developed on the basis of the DEVS framework. In this paper, we have proposed the agent-based SAF design methodology and tool for supporting DEVS M&S environment. The proposed SAF modeling tool is divided into two parts; the agent modeling part and SAF modeling part. In the agent modeling environment, the modeler can simply create the agent model by writing down the necessary rules. It also provides the agent testing environment so that the modeler maybe conveniently verify the prescribed agent model. The SAF model is finally created by combing the individual agents based on the pre-defined structure. DM&S engineers will be able to employ our tools and modeling methodology to design the DEVS-based DM&S system to be developed.
Collaborative Visualization of Warfare Simulation using a Commercial Game Engine
Kim, Hyungki ; Kim, Junghoon ; Kang, Yuna ; Shin, Suchul ; Kim, Imkyu ; Han, Soonhung ;
Journal of the Korea Society for Simulation, volume 22, issue 4, 2013, Pages 57~66
DOI : 10.9709/JKSS.2013.22.4.057
The needs for reusable 3D visualization tool has been being raised in various industries. Especially in the defense modeling and simulation (M&S) domain, there are abundant researches about reusable and interoperable visualization system, since it has a critical role to the efficient decision making by offering diverse validation and analyzing processes. To facilitate the effectiveness, states-of-the-arts M&S systems are applying VR (Virtual Reality) or AR (Augmented Reality) technologies. To reduce the work burden authors design a collaborative visualization environment based on a commercial game engine Unity3D. We define the requirements of the warfare simulation by analyzing pros and cons of existing tools and engines such as SIMDIS or Vega, and apply functionalities of the commercial game engine to satisfy the requirements. A prototype has been implemented as the collaborative visualization environment of iCAVE at KAIST, which is a facility for immersive virtual environment. The facility is intraoperative with smart devices.
Multi-fidelity Modeling and Simulation Methodology to Enhance Simulation Performance of Engineering-level Defense Model
Choi, Seon Han ; Seo, Kyung-Min ; Kwon, Se Jung ; Kim, Tag Gon ;
Journal of the Korea Society for Simulation, volume 22, issue 4, 2013, Pages 67~82
DOI : 10.9709/JKSS.2013.22.4.067
This paper presents multi-fidelity modeling and simulation (M&S) methodology to enhance simulation performance of engineering-level defense models. In this approach, a set of models with varying degrees of fidelity is exercised to reduce computational expense maintaining a similar level of system effectiveness. For multi-fidelity M&S principles, this paper defines model fidelity from two perspectives (i.e., model behavior and execution), and suggests the Fidelity Change Point (FCP) to specify the fidelity conversion. With these concepts, this paper centers on three ideas: 1) two models` structure which are the Behavioral-Fidelity Interchangeable Model (B-FIM) and the Executional-Fidelity Interchangeable Model (E-FIM), 2) modeling formalism, and 3) a simulation algorithm to support them. From an abstract case study regarding a target tracking scenario with the utilization of the proposed method, we can gain interesting experimental results regarding the enhancement of simulation performance. Finally, we expect that this work will serve various M&S-based analysis areas for enhancing simulation performance.
A Simulation Study on the Development of Injection Mold for the Parts of Phone Camera Lens Module
Kim, Hye Jeong ; Kim, Jae Hoon ; Kim, Yeong Gyoo ; Song, Jun Yeob ; Moon, Dug Hee ;
Journal of the Korea Society for Simulation, volume 22, issue 4, 2013, Pages 83~92
DOI : 10.9709/JKSS.2013.22.4.083
The demand of a camera-lens-module which is installed in mobile phone has been increased explosively as the increase of mobile phone market. Recently, two missions are given to the parts manufacturer of lens module, and they are how to keep the quality of injection moulding process as the increase of resolution, and how to decrease manufacturing cost. In this paper, a simulation study is introduced which is used for developing barrel and shield considering the double-cassette type of mould. At first, the simulation for injection process using Mold Flow
is applied in the phase of mould design, and mechanical simulation using DPM Assembly
is applied for collision detection between picking robot and mould. As a result, the productivity increased more than 300%.
Simulations of Proposed Shallow Trench Isolation using TCAD Tool
Lee, YongJae ;
Journal of the Korea Society for Simulation, volume 22, issue 4, 2013, Pages 93~98
DOI : 10.9709/JKSS.2013.22.4.093
In this paper, the proposed shallow trench isolation structures for high threshold voltage for very large scale and ultra high voltage integrated circuits MOSFET were simulated. Physically based models of hot-carrier stress and dielectric enhanced field of thermal damage have been incorporated into a TCAD tool with the aim of investigating the electrical degradation in integrated devices over an extended range of stress biases and ambient temperatures. As a simulation results, shallow trench structure were intended to be electric functions of passive, as device dimensions shrink, the electrical characteristics influence of proposed STI structures on the transistor applications become stronger the potential difference electric field and saturation threshold voltage.
A Study for the Conceptual Design of a Small Leisure Boat Handling Simulator
Kang, Nam Seon ; Yoon, Hyeon Kyu ;
Journal of the Korea Society for Simulation, volume 22, issue 4, 2013, Pages 99~107
DOI : 10.9709/JKSS.2013.22.4.099
In this study, a conceptual study was performed for the leisure boat simulator used for navigation training. The aim of this work was to secure the basic operational capability of a leisure boat as a simulated driving device for a general novice operator. A leisure boat simulator was designed to support a user more efficiently regarding navigation proficiency and safety training, as well as to minimize the limitation of place and time and it conveniently and cheaply. A cockpit for navigation status display and operational input, 3D visualization graphic device, and parallel display device were designed to give the trainee a maximum sense of reality by applying a motion platform with six degree of freedom, in which disturbance movement such waves, winds, and tide were simulated for the operator. Leisure boat simulator training scenario was developed by analysis of water-related leisure activities act and sea traffic safety act.
GPU-accelerated Reliability Analysis Method using Dynamic Reliability Block Diagram based on DEVS Formalism
Ha, Sol ; Ku, Namkug ; Roh, Myung-Il ;
Journal of the Korea Society for Simulation, volume 22, issue 4, 2013, Pages 109~118
DOI : 10.9709/JKSS.2013.22.4.109
This paper adopts the system configuration to assess the reliability instead of making a fault tree (FT), which is a traditional method to analyze reliability of a certain system; this is the reliability block diagram (RBD) method. The RBD method is a graphical presentation of a system diagram connecting the subsystems of components according to their functions or reliability relationships. The equipment model for the reliability simulation is modeled based on the discrete event system specification (DEVS) formalism. In order to make various alternatives of target system, this paper also adopts the system entity structure (SES), an ontological framework that hierarchically represents the elements of a system and their relationships. To enhance the calculation time of reliability analysis, GPU-based accelerations are adopted to the reliability simulation.
A Simulation for Warehouse considering Traffic
Baek, Jong-Kwan ; Ko, Hyo-Heon ;
Journal of the Korea Society for Simulation, volume 22, issue 4, 2013, Pages 119~128
DOI : 10.9709/JKSS.2013.22.4.119
We need to consider a number of technical constraints to build new warehouses. In particular, it is essential to assure that the flow of trucks is smooth and seamless even in large size warehouses. The flow of trucks in warehouses are subject to, for instance, the routes of trucks, the frequency and the time stamps of their in-and-out`s. Also, the routes of trucks interfere each other. Thus, finding good flow of trucks in a warehouse is a tough task when all interferences among trucks are considered. In this paper, we find some layouts of the routes of trucks exhibiting good performance based on simulation. we use ARENA ver. 11 for simulation.
Improvement of the Waste Refrigerator Pre-processing Line in Metropolitan Recycling Center using Simulation
Kim, Do Gyun ; Kang, Min Koo ; Choi, Jin Young ; Park, Kiejin ; Kong, Man-Sik ;
Journal of the Korea Society for Simulation, volume 22, issue 4, 2013, Pages 129~138
DOI : 10.9709/JKSS.2013.22.4.129
This paper studies the improvement of a pre-processing line for waste refrigerators in a metropolitan recycling center(MRC). We performed ARENA modeling and simulation by using work analysis and time measurement on the current processing line. Combined this result with some practical experiences from workers, we generated 3 alternatives to improve the current line and evaluated them by using ARENA simulation. The final decision selected consists of changing 2-line process into 1-line and having a separate cell-line for collecting refrigerant. Currently, the result of this study was applied to MRC by improving cycle time, throughput, and space utilization compared to the previous one.
Feature Selection for Classification of Mass Spectrometric Proteomic Data Using Random Forest
Ohn, Syng-Yup ; Chi, Seung-Do ; Han, Mi-Young ;
Journal of the Korea Society for Simulation, volume 22, issue 4, 2013, Pages 139~147
DOI : 10.9709/JKSS.2013.22.4.139
This paper proposes a novel method for feature selection for mass spectrometric proteomic data based on Random Forest. The method includes an effective preprocessing step to filter a large amount of redundant features with high correlation and applies a tournament strategy to get an optimal feature subset. Experiments on three public datasets, Ovarian 4-3-02, Ovarian 7-8-02 and Prostate shows that the new method achieves high performance comparing with widely used methods and balanced rate of specificity and sensitivity.
Resource and Network Routing Optimization in Smart Nodes Environment
Seo, Dong-Won ; Yoon, Seung Hyun ; Chang, Byeong-Yoon ;
Journal of the Korea Society for Simulation, volume 22, issue 4, 2013, Pages 149~156
DOI : 10.9709/JKSS.2013.22.4.149
In this research, we dealt with an optimization problem which aims to minimize total cost of resources usage and network routing in a smart node environment. Toward this, we briefly introduced technology trends in smart nodes, methods in resource optimization fields, economic effects of smart network and content delivery (or distribution) network (CDN). Moreover, based on CDN we proposed and implemented a mathematical (mixed integer) programming model to combine replica placement and requests distribution problem (RPRDP) and routing problem. Computational result of an example on RPRDP+Routing problem is also provided.