• Title/Summary/Keyword: Post-Processor

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The simulation system for ceramic drying processes (세라믹 건조공정 시뮬레이션 시스템)

  • 금영탁;김준한;오근호
    • Journal of the Korean Crystal Growth and Crystal Technology
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    • v.11 no.3
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    • pp.120-126
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    • 2001
  • The simulation system for analyzing the ceramic drying process is developed. This system consists of 3 parts: pre-processor, analyzer, and post-processor. The pre-processor creates 3-dimensional ceramics, makes finite-element models, and prepares analyzers input. The analyzer computes temperature, moisture, residual stress, displacement, etc. during the drying process using the information about finite-element model, material property, and boundary condition provided by the pre-processor. In post-processor, the analyzers results are visualized to help designers evaluation of the drying of the ceramic.

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An Implementation of the $5\times5$ CNN Hardware and the Pre.Post Processor ($5\times5$ CNN 하드웨어 및 전.후 처리기 구현)

  • Kim Seung-Soo;Jeon Heung-Woo
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.10 no.5
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    • pp.865-870
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    • 2006
  • The cellular neural networks have shown a vast computing power for the image processing in spite of the simplicity of its structure. However, it is impossible to implement the CNN hardware which would require the same enormous amount of cells as that of the pixels involved in the practical large image. In this parer, the $5\times5$ CNN hardware and the pre post processor which can be used for processing the real large image with a time-multiplexing scheme are implemented. The implemented $5\times5$ CNN hardware and pre post processor is applied to the edge detection of $256\times256$ lena image to evaluate the performance. The total number of block. By the time-multiplexing process is about 4,000 blocks and to control pulses are needed to perform the pipelined operation or the each block. By the experimental resorts, the implemented $5\times5$ CNN hardware and pre post processor can be used to the real large image processing.

Development of Post-Processor for Fire Simulation (화재 시뮬레이션을 위한 후처리장치 개발)

  • Hur S.;Chang J.;Hur N.
    • Journal of computational fluids engineering
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    • v.7 no.3
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    • pp.27-34
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    • 2002
  • When caught in a fire inside a building or a tunnel the generated smoke is the main cause of the bad visibility, which makes it difficult for a person to find escape route. Therefore of the fire simulation it is required to visualize the simulated results of smoke realistically form a viewpoint of a person caught in a fire. In the present study, developed is a CFD post-processor which can visualize the object through smoke from the results of CFD fire simulation. Examples of some applications of the program are shown in the paper.

Volumetric Error Compensation of a 3-Axis Horizontal Machining Center in the Post-processor (후처리기에 의한 3축 수평머시닝센터의 체적오차보정)

  • 양승한;권성환
    • Journal of the Korean Society of Manufacturing Technology Engineers
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    • v.8 no.3
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    • pp.28-34
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    • 1999
  • The objective of this study is to estimate and to compensate far the volumetric error of a workpiece influenced by the geometric error of a machine tool. In this paper, the volumetric error is defined and the error synthesis model is presented. Then, the volumetric error of workpiece is calculated and compared through the simulation, and a new tool-path is generated to compensate for the error in the post-processor of CAM system using the error synthesis model. By this method, the error is compensated without modification or replacement of a machine tool being in use.

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A Development of General Purpose Program NUFLEX for the Analysis of Heat/Fluid Flow (범용 열/유체 유동해석 프로그램 NUFLEX의 개발)

  • Hur N.;Won C.-S.;Son G.;Ryou H.-S.;Shin D.
    • 한국전산유체공학회:학술대회논문집
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    • 2004.10a
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    • pp.53-59
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    • 2004
  • A general purpose program NUFLEX for the analysis of 3-D heat/fluid flow in complex geometry with pre/post processor have been developed, which consists of a flow solver based on FVM and a dedicated pre/post processor. The program employs a general non-orthogonal grid system and solve laminar and turbulent (lows with standard and RNG $\kappa-\epsilon$ turbulence models. NUFLEX is capable of analysing two-phase flow with topologically complex interface, turbulent diffusion combustion, solidification problems and magnetic flow. For the purpose of verification of the program and testing the applicability, several practical problems are solved and compared with the available data. Comparison of the NUFLEX results with that by the STAR-CD program has been also made for the same flow configuration and grid structure.

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Development of a PC-based Pre- and Post-processor for Remote CAE (원격 CAE를 위한 PC기반 전.후처리기 개발)

  • Suh, Y.S.;Byun, C.J.;Yoo, S.H.;Lee, J.Y.;Kim, H.
    • Korean Journal of Computational Design and Engineering
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    • v.5 no.2
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    • pp.113-121
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    • 2000
  • A compact pre- and post-processor that runs on PC has been developed for the purpose of remote CAE. This includes a linear-finite-element-analysis module for on-site analysis of simple and midium-sized structural problems and an interfacing module for remote analysis of more complex cases such as nonlinear and large-scale linear problems which are cpu-consuming to solve. The software was designed to provide convenient interfacing capability for the use of client-server-type analysis. In this paper, the interface module was specially designed to use ABAQUS on the supercomputer. As a benchmark for the remote CAE, a sheet-forming simulation was perfomed on a PC networked with the supercomputer.

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DEVELOPMENT OF PRE/POST PROCESSOR PROGRAM FOR NUFLEX (NUFLEX의 전후처리장치 개발)

  • Kim, Sa-Ryang;Yeo, Jae-Hyun;Won, Chan-Shik;Hur, Nahm-Keon
    • 한국전산유체공학회:학술대회논문집
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    • 2007.04a
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    • pp.91-94
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    • 2007
  • A GUI based pre/post processor program, which is based on the MFC and OpenGL library in the Windows O/S, hee been developed for NUFLEX Using this program, users are able to generate and modify structured or unstructured grid geometries, set all the parameters for the solver, and observe the results of the simulation in graphic view by vector or scalar plots. The mesh geometry data can be imported from or exported to other programs by supporting functions for reading from and writing to CGNS data format files.

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Development of a Pre/Post Processor Program for the Analysis of the Passenger Flow based on Discrete Element Method(DEM) (DEM에 기초한 여객유동 해석을 위한 전/후처리 프로그램 개발)

  • Kim, Chi-Gyeom;Won, Chan-Shik;Hur, Nahm-Keon;Nam, Seong-Won
    • Proceedings of the SAREK Conference
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    • 2008.11a
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    • pp.475-480
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    • 2008
  • A pre/post processor program based GUI(Graphic User Interface) by using the MFC and OpenGL library in the Windows OS have been developed for the analysis of the passenger flow. Using this program, users are able to generate and modify the meshes of multi-storied subway station, set all the parameters for the solver, and obtain the results of the simulation such as transient passenger motions and passenger streak lines in 3-dimensional graphic view.

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A Study on Technical Development of Ultrasonic Test for Application of Industrial Fields (산업체 적용을 위한 초음파 검사 기술 개발에 관한 연구)

  • Yi, Won;Yun, In-Sik
    • Journal of the Korean Society for Precision Engineering
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    • v.14 no.8
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    • pp.49-56
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    • 1997
  • In recent years, ultrasonic technics has been widely applied to industrial fields and its application range has been expanded as a result of continuous research and development. This paper is concerned with development of post-processor program for ultrasonic test and two-axis automatic ultrasonic system for application of industrial fields. Test results of ultrasonic test post-processor program and two-axis auto- matic ultrasonic system have a good agreement with results of ultrasonic evaluation for defect detection in industrial fields. Therefore we think that the developed ultrasonic test post-processor program and two- axis automatic ultrasonic system in this work is very useful for application of industrial fields.

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