• 제목/요약/키워드: experimental analysis

검색결과 23,607건 처리시간 0.052초

정밀 공작기계용 리니어모터 모멘트의 해석 및 실험적 검증 (Analysis and Experimental Verification of Linear Motor Moment for Precision Machine Tools)

  • 조영택;조한욱;이승한
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2015년도 제46회 하계학술대회
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    • pp.884-885
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    • 2015
  • This paper presents the characteristic analysis and experiment of pitching moment in permanent magnet linear synchronous motor (PMLSM) for precision machine tools. In this paper, we define force characteristics of the moment and the moment analysis by the finite element method. Manufacture experiment and we will compare the results of finite element analysis and experimental results.

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교량용 내진 받침의 동특성 실험 결과를 이용한 교량의 해석 (Dynamic Analysis for Bridge Using the Experimental Results of Hysteretic Damping Bearing and Dynapot)

  • 윤정방;박동욱;이동하;안창모
    • 한국전산구조공학회:학술대회논문집
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    • 한국전산구조공학회 2001년도 봄 학술발표회 논문집
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    • pp.465-474
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    • 2001
  • Base Isolation system is an effective design strategy that provides a practical substitute for the seismic design of bridge. In this study, the dynamic tests was performed on HDB (Hysteretic Damping Bearing) and Dynapot. Then, the dynamic analysis was carried out for a bridge using the experimental results to estimate the seismic performance of bearings. Analysis for bridge was performed for four types of earthquake loadings. The result of dynamic test and theoretical analysis indicate that the performance of HDB and Dynapot is appropriate for the earthquake loading.

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냉간압축 하에서 실리콘 카바이드 분말의 치밀화해석 (Densification Analysis for SiC Powder under Cold Compaction)

  • 박환;김기태
    • 한국세라믹학회지
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    • 제37권6호
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    • pp.589-595
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    • 2000
  • Densification behavior of SiC powder was investigated under cold compaction. A special form of the Cap model was proposed from experimental data of SiC powder under triaxial compression. To compare with experimental data of SiC powder under cold compaction, the proposed constitutive model was implemented into a finite element program (ABAQUS). Finite element calculations from the Cam-Clay model and the modified Drucker-Prager model were also compared with experimental data of SiC powder. The agreements between experimental data and finite element results obtained from the proposed constitutive model are reasonably good. In die pressing, finite element results obtained from the Cam-Clay model and the modified Drucker-Prager model, however, show lower average density of SiC powder compacts compared to experimental data.

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작동각을 고려한 차량 후드 프레임의 실험식 개발 (Development of Experimental Equation of Hood Frame for Vehicle Considering Operating Angle)

  • 송요선;허관도;손인수
    • 동력기계공학회지
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    • 제20권3호
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    • pp.57-63
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    • 2016
  • This paper presents the experimental result and theoretical analysis result to investigate the correlation between the operating force, angle and locking torque for vehicle hood frame. Also, we derived the experimental equation that using the results for experiment and theory. The hood frame is switching-devices used for opening and closing the vehicle hood. It needs the correlation data between locking torques of each joint, operating force and angle of hood frame. The correlation data for torque and reaction force of hood frame obtained through experiment and theory analysis. Finally, the experimental equation of the locking torque prediction for the hood frame is derived.

Behaviour of carbon fiber reinforced polymer strengthened tubular joints

  • Prashob, P.S.;Shashikala, A P.;Somasundaran, T.P.
    • Steel and Composite Structures
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    • 제24권4호
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    • pp.383-390
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    • 2017
  • This paper highlights the experimental and numerical investigations performed on a tubular T-joint fabricated from circular hollow sections under axial compressive loads applied at the brace. Tests were performed on a reference joint and the joint wrapped with Carbon Fiber Reinforced Polymer (CFRP). The Nitowrap EP carbon fiber with Nitowrap 410 resin serve as a composite material is used for wrapping the T-joint. Schematic diagram of the fabricated tubular joint for the experimental test setup, along with the experimental and numerical results are presented. After performing these experiments, it has been demonstrated that the joint wrapped with CFRP has a better strength and lesser deflection than a reference joint. Finite element analysis carried out in Ansys reveals that the results were in good correlation with the experimental values.

류마티스 건강학회지 창간호부터 10년간의 실험연구 분석을 통한 연구 경향 분석 (An Analysis of Trends in Nursing Research Utilizing Experimental Designs)

  • 박경숙;최은희;황윤영;안양희;정혜경;백훈정;류언나;이은옥
    • 근관절건강학회지
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    • 제11권2호
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    • pp.136-152
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    • 2004
  • Purpose: The purpose of this study was to summarize trends and status of nursing research utilizing experimental designs in the Journal of Rheumatology Health over the past 10 years. Method: The Journal of Rheumatology Health published 37 experimental research articles between 1994 and 2004. These articles were included in a retrospective descriptive analysis. A checklist was utilized for data collection. Results: Qoasi-experimental researches were more frequent than pre-experimental research, but there were 8 research studies which had no hypothesis. The most frequently used nursing interventions were exercise/movement, and cognitive, followed by sensitive, and social interventions. There were very few research studies that used random assignment for internal validity. The rate of effectiveness of self-help interventions was lower than socio-psychological, cognitive, or motor-physical interventions. There was no research regarding families of patients with rheumatoid disease. Conclusion: Rigorous experimental research design is needed for internal and external validity in future research. Generalizing the effects of nursing interventions that are the results of rigorous experimental designs will contribute to promote the quality of life of patients with rheumatism and their families.

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