• 제목/요약/키워드: Analytical Analysis

검색결과 9,355건 처리시간 0.036초

확률론적 지진하중에 의한 모멘트 골조의 동적 거동평가 (Evaluation of Dynamic Behavior of moment resisting frame under probabilistic ground motions)

  • 권오성;한상환
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 2001년도 봄 학술발표회 논문집
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    • pp.565-570
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    • 2001
  • Base shear and roof drift relation was acquired from experiment of 3 story ordinary moment resisting frame which was designed using gravity loads. To evaluate the dynamic behavior of the frame, analytical model was generated from experimental result. Dynamic analysis was performed using the analytical model subjected to earthquake ground motions with 500, 1000, and 2400 years of return period. And capacity spectrum method was adopted to find the performance points of the frame. Both dynamic analysis and CSM showed that the performance of the frame meet the life safety objectives suggested by FEMA 273 and ATC 40.

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군말뚝효과를 고려한 수동말뚝의 해석기법 (Analysis Method of Passive Piles considering group effect)

  • 정상섬;원진오;김병철
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2000년도 봄 학술발표회 논문집
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    • pp.151-158
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    • 2000
  • The lateral deformation of one row pile groups was investigated based on analytical study and a numerical analysis. The emphasis was on quantifing the load transfer of pile groups subjected to lateral soil movement. An analytical method to consider pile-soil interaction in weathered soil was developed using load-transfer curve methods. Through the comparative study, it is found that the prediction by present approach is in good agreement with the general trend observed by in-situ measurements.

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크랭크 축의 모우드 해석에 관한 연구 (A study on modal analysis of a crankshaft)

  • 박윤식;제양규;오동엽
    • 오토저널
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    • 제7권4호
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    • pp.67-72
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    • 1985
  • An analytical and experimental modal analysis is carried out upon a crankshaft of a four cylinder internal combustion engine for studying dynamic characteristics of the shaft. Influence coefficient method is adopted in modelling the object and the calculated dynamic properties are directly compared with the experimentally obtained torsional and bending natural frequencies and mode shapes. It is found that the test results are well agree with the outputs from analytical model especially in low harmonics.

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실험적 모우드해석을 통한 엔진 마운트계의 동역학적 모델링 (Dynamic modeling of engine/mount system via experimental modal analysis)

  • 정경렬;조치영;이종원
    • 오토저널
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    • 제10권2호
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    • pp.39-45
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    • 1988
  • The analytical model of an engine mount system with six degrees of freedom is identified using the modal parameters obtained from the experimental modal analysis. The structural parameters, mass moment of inertia of the engine block and stiffness of the rubber mounts, of the engine mount system are determined by using the condition that the estimated model parameters should satisfy the corresponding eigenvalue problem. The simulated modal parameters of the identified analytical model are in good agreement with the measured modal parameters.

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다물체 시스템의 민감도 해석 (DESIGN SENSITIVITY ANALYSIS FOR MULTIBODY SYSTEMS)

  • Lee, Jong-Nyun;Park, Soo-Hong
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 1996년도 춘계학술대회 논문집
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    • pp.378-382
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    • 1996
  • This paper presents a 'mixed' method for performing the sensitivity analysis for multibody dynamics. The mixed method uses both the analytical derivation and the numerical evaluation, in which premitive derivations rely on the analytical process and their associated individual terms are evaluated by the numerical precess. Therefore, this method can eliminate difficulty in dervation of the direct differentiation. Furthermore, by using the joint coordinate formulation for the equations of motion, compulational efficiencyand numerical accuracy are achieved.

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ANALYTICAL SOLUTION OF COUPLED RADIATION-CONVECTION DISSIPATIVE NON-GRAY GAS FLOW IN A NON-DARCY POROUS MEDIUM

  • Darvishi, Mohammad Taghi;Khani, Farzad;Aziz, Abdul
    • Journal of applied mathematics & informatics
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    • 제28권5_6호
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    • pp.1203-1216
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    • 2010
  • The homotopy analysis method (HAM) has been applied to develop an analytic solution for the coupled radiation-convection dissipative non-gray gas flow in a non-Darcy porous medium. Results are presented for the surface shear and temperature profiles are presented to illustrate the effect of various parameters appearing in the analytical formulation. The accuracy and convergence of the method is also discussed.

비대칭연단보강재가 설치된 직교이방성 압축재의 탄성 국부좌굴해석 (Analysis of Elastic Local Buckling of an Orthotropic Compression Member with Asymmetric Edge Stiffeners)

  • 최원창;정상균;윤순종
    • 한국복합재료학회:학술대회논문집
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    • 한국복합재료학회 2000년도 추계학술발표대회 논문집
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    • pp.5-8
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    • 2000
  • This paper presents the analytical investigation pertaining to the local buckling behavior of orthotropic open section thin-walled compression members with asymmetric edge stiffeners. In the analysis, 3 different cases of the second moment of inertia are considered to find the asymmetric edge stiffener effect on the local buckling strength. The analytical study results are presented in the graphical form so that the edge stiffener effects on the local buckling strength can be easily found.

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활성 알루미나를 이용한 크롬 3가 및 6가의 분리.분석 (The Application of Activated Alumina for the Selective Analysis of Cr(III) and Cr(VI))

  • 임헌성;이석근
    • 분석과학
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    • 제13권4호
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    • pp.544-547
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    • 2000
  • By using surface modified activated alumina with AI(III) and flame atomic absorption spectrometry, a rapid and convenient method for the selective analysis of chromium (III) and chromium (VI) in water has been developed. This technique appears to work accurately under optimum pH range from 3 to 5.

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중수소 핵자기 공명을 이용한 외국 술과 국산 술의 비교 분석 (Application of Deuterium NMR Analysis for the Differentiation of Korean and Foreign Liquors)

  • 한기정;이석근
    • 분석과학
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    • 제13권1호
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    • pp.127-129
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    • 2000
  • The $^2H$ NMR analysis was used to determine the relative deuterium contents at the position of methyl and methylene in ethyl alcohols. Four different liquors manufactured in Korea clearly showed different R values from those of foreign liquors. These R values for the Korean liquors could be used to distinguish adulteration.

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해석적 방법을 이용한 슬롯리스형 영구자석 선형 전동기의 특성 해석 (Characteristic Analysis of a Slotless PM Linear Motor Using Analytical Method)

  • 안호진;강규홍;홍정표;김규탁
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2001년도 추계학술대회 논문집 전기기기 및 에너지변환시스템부문
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    • pp.116-118
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    • 2001
  • This paper deals with characteristic analysis of a slotless PM linear motor using analytical method. In order to calculate voltage equations, back-EMF waveform and winding inductance are caculated by PM's magnetic field and winding's magnetic field respectively.

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