• Title, Summary, Keyword: CAE Analysis

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Development of Templated Structural Analysis Program Using ANSYS Workbench (ANSYS Workbench를 활용한 정형해석 프로그램 개발)

  • Chung Il-Young;Ga Chung-Sik;Lee Gyu-Bong
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • pp.621-622
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    • 2006
  • In this paper, we performed the customization of CAE analysis in the process of product development and verification. The purpose of customized analysis is to implement collaboration framework of inter-corporate, inter-division for knowledge process based on product development. Customized analysis methodology using ANSYS Workbench API is presented for the web-based and workbench-based application. Cellular phone was selected as a CAD model, and template based process of analysis is conducted. By using this system, customized analysis is suitable to site or user oriented specific analysis and for user who has little experience on CAE analysis.

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Comparison of CAE Flow Analysis and Practical Molding on Elastomer Injection Molding (엘라스토머 사출성형시 CAE 유동해석과 실제 성형품의 비교)

  • Han S.R.;Kim J.H.;Jeon S.G.;Lee G.H.;Jeong Y.D.
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • pp.375-376
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    • 2006
  • Thermoplastic elastomer(TPE) can be molded by conventional injection molding. Therefore TPE injection molding could be analyzed by commercial flow analysis software. However there are a little of gaps on CAE simulation results and practical molding. In this study, the properties of TPE were measured and applied to CAE simulation for comparing the simulation flow pattern and real flow pattern. The pattern that was controlled by injection time was match. The pattern that was controlled by injection stroke and rate was not match.

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Development of a Web-based MDO Framework for Design and Analysis Integration

  • Park, Chang-Kyu
    • Journal of information and communication convergence engineering
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    • v.8 no.5
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    • pp.479-483
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    • 2010
  • The rapid progress of the Internet and network is affecting the engineering design environment as well as business that use Web technologies to enhance their competitive edge. In product development, experts and organization who take part in the design process are often geographically dispersed. Furthermore, different divisions and business often have heterogeneous CAD/CAE systems and methods for expressing product data, and addressing this heterogeneity creates additional costs and increases development time. Managing distributed CAD, CAE and other related systems in an organic and holistic manner from the initial stages of product development is imperative to ensure successful collaboration in the design process. Therefore, this study suggests a Web-based MDO framework to support interfacing and collective use of design and analysis tools.

Development of a CAE Tool for P/M Compaction Process and Its Application (금형압축성형공정 해석용 CAE 프로그램 개발 및 적용)

  • Chung Suk-Hwan;Kwon Young-Sam
    • Journal of Korean Powder Metallurgy Institute
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    • v.11 no.5
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    • pp.399-411
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    • 2004
  • Crack generation during die compaction and distortion during sintering have been critical problems for the conventional pressing and sintering process. Until now, trial and error approach with engineers' industrial experiences has been only solution to protect the crack generation and distortion. However, with complexity in shape and process it is very difficult to design process conditions without CAE analysis. We developed the exclusive CAE software (PMsolver/Compaction) for die compaction process. The accuracy of PMsolver is verified by comparing the finite element simulation results with experimental results. The simplified procedures to find material properties are proposed and verified with iron based powder and tungsten carbide powder. Based on the accurate simulation result by PMsolver, the optimal process conditions are designed to get uniform density distribution in a powder compact after die compaction process by using a derivative based optimization scheme. In addition, the effect of non-uniform density distribution in a powder compact on distortion during sintering is shown in case of the fabrication of tungsten carbide insert.

Vibration Analysis of a Nano Imprinting Stage Using CAE (CAE를 이용한 나노 임프린팅 스테이지의 진동 해석)

  • Lee, Kang-Wook;Lee, Jae-Woo;Lee, Sung-Hoon;Lim, Si-Hhyung;Jung, Jae-Il;Yim, Hong-Jae
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • pp.579-584
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    • 2008
  • A nano-imprinting stage has been widely used in various fields of nanotechnology. In this study, an analysis method of a nano-imprinting stage machine using FEM and flexible multi-body vibration has been presented. The simulation using CAE for the imprinting machine is to analyze vibration characteristics of 3-axis nano-imprinting stage and 4-axis nano-imprinting stage. Structural components such as the upper plate have been modeled with finite elements to analyze flexibility effects during the precision stage motion. In this paper flexible multi-body dynamic simulation is executed to support robust design of the precision stage mechanism.

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Applications of Numerical Analysis Technology in Powder Injection Molding Process (분말사출 성형공정에서의 수치해석기술의 응용)

  • ;;;;Sunder V. Atre;Randall M. German
    • Journal of Korean Powder Metallurgy Institute
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    • v.9 no.4
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    • pp.261-266
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    • 2002
  • CAE technology is an integrated tool including all aspects such as powder, binder system, mixing, injection molding, debinding and sintering. Therefore, CAE technology is considered as one of core technologies for PIM industry in the future. Recently many researchers are developing not only CAE software itself but also application procedures of CAE software. In this study, the applications for CAE technology in PIM industry are presented including feedstock mixing effect, several cases of troubleshooting and optimization procedure.

Estimation of LFT viscosity from CAE analysis with measuring cavity pressure (캐비티 내압 측정 및 CAE해석을 통한 Long Fiber Thermoplastic(LFT)의 점도 추정)

  • Kim, Yong-Hyun;Noh, Seong-Kyu;Kim, Dong-Hak
    • Proceedings of the KAIS Fall Conference
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    • pp.345-348
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    • 2011
  • 본 논문에서는 LFT와 같은 고점도 수지의 점도를 추정하기 위한 방법을 제시하였다. 실제 사출공정에서의 점도를 추정함으로써 신뢰할 수 있는 점도데이터를 제공하기 위한 방법을 제시 하였다. 우선 금형 내에 캐비티 압력을 측정할 수 있는 시스템을 구성하였고, 이 시스템을 이용해서 실제 사출과정에서 나타나는 압력 변화를 측정하는 것이다. 상용화 된 CAE 프로그램(Moldflow)은 사출공정에서 캐비티 내부를 흐르는 수지의 압력변화를 모사할 수 있다. 만약, CAE D/B에 있는 수지의 점도 데이터가 정확하다고 가정하면, 실험에서 측정한 압력 프로파일과 CAE로부터 계산 된 압력 프로파일이 일치해야 한다. 이것이 실험값과 일치하지 않으면 가정한 값을 CAE D/B에 입력해서 일치할 때까지 반복함으로써 신뢰성 있는 점도를 추정 할 수 있다. 한편, LFT에 대하여 적용하여 최적화 된 점도 데이터도 추정할 수 있었다.

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Design and Analysis of Injection-Molded Portable Telephone-Charging Equipment Using Integrated CAE Approach (통합적 CAE 기술에 의한 휴대폰 충전기 설계 해석)

  • Oh Jung-Yeol;Huh Yong-Jeong;Li Gil-Goo
    • Proceedings of the KAIS Fall Conference
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    • pp.72-74
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    • 2004
  • 본 연구의 목적은 천안시 소재 (주)삼우금형의 생산 제품인 휴대폰 충전기에 대해 CAE 프로그램인 Moldflow와 CAPA를 이용하여 유동해석과 냉각해석을 수행함으로써 성형불량을 최소화하고 좋은 설계를 얻을 수 있는 최적의 성형조건을 얻으려는 것이다. 사출성형 관련 설계를 설계초기 단계에서 CAE기술을 활용하여 합리적인 설계로 나아가기 위한 구체적인 과정을 기술하였다. 제품 성형에 있어서의 문제점을 최소화하고 재료비 절감, 설계납기 단축, 제품 품질 향상을 달성하기 위해서 CAE 해석을 통하여 현재 제품의 문제점을 도출하고 그 해결책을 제시하였다.

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Improvement in Prediction Accuracy of Springback for Stamping CAE considering Tool Deformation (금형변형을 고려한 성형 CAE에서의 스프링백 예측정확도 향상)

  • Park, J.S.;Choi, H.J.;Kim, S.H.
    • Transactions of Materials Processing
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    • v.23 no.6
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    • pp.380-385
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    • 2014
  • An analysis procedure is proposed to improve the prediction accuracy of springback as well as to evaluate the structural stability of the tooling used for fabricating a side sill part from UHSS. The analysis couples the stamping analysis and the subsequent analysis of the tool structural. The deformation and stress results for the tool structure are obtained from the proposed analysis procedure. The results show that the amount of deformation and stresses are so high that the tool structure must be reinforced and the tooling design must consider structural stability. Springback is predicted with CAE in order to compare the prediction accuracy between the given tool geometry and the geometry from the structural analysis. The simulation results with the deformed tool can predict the experimental springback tendency accurately.

CAE Analysis on the Radius Curvature of Ununiformed wall-thickness Jar (불균일 측벽두께 Jar의 곡률반경에 따른 CAE 해석)

  • Shin, Nam-Ho;Choi, Seok-Jong
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.7 no.6
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    • pp.1040-1046
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    • 2006
  • This paper is aimed to investigate the deformation caused by ununiform contraction of injection molding with highly big differences of thickness by the continuity of various curvature radius. By CAE analysis, the uniform cooling structure and optimum molding conditions are found for Jars made of SAN and PMMA materials and applied to the design of chill. In order toevaluate the molding pressure, resin temperature, molding temperature, cooling conditions, Moldflow program is applied. As results of experiments, the deformation and inferiority phenomena in Jars are analyzed for each factor and proposed the injection molding conditions to minimize the cooling structure and reduce the cycle time.

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