• Title/Summary/Keyword: sFEM

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FEM Analysis of a 38 Person Elevator Brake (38인승 승강기 제동장치의 유한요소해석)

  • Lee, Jong-Sun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.11
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    • pp.6458-6463
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    • 2014

  • This study performed FEM analysis of a 38 person elevator brake. Recently, an emergency brake was newly developed to improve elevator safety. A 3D design was developed using Solid Works and FEM analysis using analysis code ANSYS. The total deformation, stress and strain were obtained.

  • https://doi.org/10.5762/KAIS.2014.15.11.6458 인용 PDF KSCI

A Study on the Optimal Structural Design and Ultra Precision Position Control using FEM for Micro Stage (마이크로 스테이지의 유한요소법을 이용한 최적설계와 초정밀 위치제어에 관한 연구)

  • Kim, J. Y.;Han, J. H.;Kim, H. W.;You, S.;Kwac, L. K.;Song, I. S.
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1997.10a
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    • pp.336-340
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    • 1997

  • For optimal design of micro stage, we were measured to displacement of piezo-electric transducer that was based on voltage value. And then researchers were analyzed to microstage through FEM with displacement data including voltage value of piezo-electric transducer. For verification of analyzing results, we were gauged on displacement by using Laser-interferometer. And researchers were confirmed to propriety of micro stage design with FEM, were obtained error rate that are 3.5% between measurement results and analyzing results.

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Mechanical Performance Evaluation of Cement Paste with Foaming Agent using FEM Analysis Based on Picture Image (화상 이미지 기반 FEM 해석을 이용한 기포제 혼입 시멘트 페이스트의 역학 성능 평가)

  • Kim, Bo-Seok;Shin, Jun-Ho;Lee, Han-Seung
    • Journal of the Korea Institute of Building Construction
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    • v.16 no.1
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    • pp.35-43
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    • 2016

  • Concrete is a representative heterogeneous material and mechanical properties of concrete are influenced by various factors. Due to the fact that pores in concrete affect determining compressive strength of concrete, studies which deal with distribution and magnitudes of pores are very important. That way, studies using picture imaging have been emerged. Studies on mechanical performance evaluation of structural lightweight foamed concrete and FEM analysis based on picture image are inadequate because lightweight foamed concrete has been researched for only non-structural. Therefore, in this study, cement paste with foaming agent to evaluate mechanical performance is made, FEM analysis with picture image is conducted and young's modulus of experiment and analysis are compared. In this study, dosage of foaming agent is determined 7 level to check pore distribution and water-binder ratio is determined 20% to progress research about structural light weight foamed concrete. Weight of unit volume is minimum at 0.8% of foaming agent dosage. However, weight of unit volume is increased over 0.8% of foaming agent dosage because of interconnection with independent pores. For FEM analysis, cement paste is photographed to use image analyzer(HF-MA C01). Consequently, the fact that Young's Modulus of experiment and FEM analysis are same is drawn by using OOF(Object Oriented Finite elements).

  • https://doi.org/10.5345/JKIBC.2016.16.1.035 인용 PDF KSCI