• 제목/요약/키워드: Transfer Matrix method

검색결과 543건 처리시간 0.031초

Kineto-Elasto Static and Dynamic Responses of a Fully Elastic Linked, Four-bar Mechanism

  • 신중호
    • 한국기계연구소 소보
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    • 통권17호
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    • pp.99-109
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    • 1987
  • Mechanisms with fully elastic members must consider both inertial forces due to the rigid motion of mechanisms and due to the elastic vibration of links. The main objectives of the kineto-elasto static and dynamic analyses are to calculate the quasi-static and the time-domain responses, respectively. An iterative transfer matrix method is used for a four-bar, fully elastic linked mechanism. Houbolt direct integration scheme is incorporated for the inertial effects due to the elastic link vibration. The analytical results are compared with the experimental responses and both responses show in good agreement.

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형상 보강 판넬의 파동 전파 특성 (Wave Propagation in Swaged Panel)

  • 이종화;이정권
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 1996년도 춘계학술대회논문집; 부산수산대학교, 10 May 1996
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    • pp.253-256
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    • 1996
  • Stiffened panels are very frequently used for body structures of automobiles, air-crafts, submarines, etc., to suppress the vibration level. Swaging technique is the modification of the configuration of panel itself, and this is prefered to rib-like stiffeners because it does not change the total weight of structure. In this paper, the transmissibility of vibratory power through swage is investigated, where the swage is modeled as an incomplete circular ring, utilizing the well-known transfer matrix method. The power transmission and reflection coefficients of swaged panel are estimated and compared with experimental results.

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배전용 cable 변압기 권선의 진동모드 계산 (A Vibration Mode Analysis of Winding in a Cable Type Distribution Power Transformer)

  • 하정우;우성현;신판석;이진회
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2007년도 춘계학술대회 논문집 전기기기 및 에너지변환시스템부문
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    • pp.77-79
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    • 2007
  • 본 논문에서는 변압기 권선의 기계진동모드인 공진주파수를 Transfer Matrix Method를 이용하여 계산하였고. 이를 기계구조 프로그램인 ANSYS를 이용하여 증명 하였다. 본 연구에서 사용된 방법들은 단락시 발생되는 변압기 권선진동을 연구할 때 유용하게 활용할 수 있을 것이다.

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상태 벡터 및 전달 매트릭스를 이용한 원통형 몰수체의 강제 진동 해석 (The Forced Vibration Analysis of Immersed Circular Cylindrical Shell using State Vector and Transfer Matrix)

  • 정우진;신구균;함일배;이헌곤
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 1993년도 춘계학술대회논문집; 한국과학연구소, 21 May 1993
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    • pp.75-79
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    • 1993
  • 본 연구에서는 원통형 셀을 Donnell-Mushitari의 Thin Shell로 모델링하고, 유체의 거동은 Hankel 함수를 배제하고 유한차분법(Finite Difference Method)으로 모델링하여, 상태 벡터(State Vector)해석법, 전달 행렬 및 푸리 에 변환(Fourier Transform)을 사용, 무한 원통형 몰수체의 강제 진동을 해 석하였다.

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DECOUPLING OF MULTI-INPUT MULTI-OUTPYT TWO DIMENSIONAL SYSTEMS

  • Kawakami, Atsushi
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 1990년도 한국자동제어학술회의논문집(국제학술편); KOEX, Seoul; 26-27 Oct. 1990
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    • pp.1130-1134
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    • 1990
  • In this paper, we propose a mthod to decouple the multi-input multi-output two-dimensional system. Then, we analyze the realization dimension of the feedback, feedforward given to decouple. Moreover, we consider the possibility of the reduction of the dynamical dimension needed to decouple. Besides, in order to stabilize the decoupled two-dimensional system, we suggest a method to assign the poles of each entry of the transfer function matrix to the desired positions.

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다중 언덕형 광도파로/양자우물의 WKB 고유방정식 (WKB eigenvalue equation for multiple graded-index waveguides/quantum-wells)

  • 김창민;임영준
    • 전자공학회논문지A
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    • 제33A권11호
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    • pp.120-127
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    • 1996
  • In the WKB analysis, we propose the new forms of the trial eigenfunctions which not only converge at the turning points but also approximate to the conventional WKB solutions away from the turning points. The eigenvalue equation of multiple waveguides with graded index profile are derived by using the proposed WKB analysis and the transfer matrix method. The drived equation sare represented in the recursive form. The results of the eigenvalue equation sare comapred with those of the FDM, one of the well-known computational methods, for a three-waveguide coupler.

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All-optical Regenerator Using Semi-reflective Semiconductor Optical Amplifier

  • Kim T.Y.;Kim J.Y.;Han S.K.
    • Journal of the Optical Society of Korea
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    • 제10권1호
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    • pp.11-15
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    • 2006
  • We have proposed and theoretically verified an optical regenerator using a single semi-reflective semiconductor optical amplifier (SR-SOA). To explain the operation characteristics and the operation condition of the proposed opticalregenerator, the simplified gain model for the SR-SOA is introduced and confirmed by comparing the result of the SOA simulation based on the transfer matrix method (TMM). The simulation results show that both extinction ratio (ER) enhancement and signal amplification can be achieved in the proposed regenerator.

The One-Dimensional Superconducting Photonic Crystal

  • Aly, Arafa H;HwangBo, Chang-Kwon
    • 한국광학회:학술대회논문집
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    • 한국광학회 2008년도 하계학술발표회 논문집
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    • pp.417-418
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    • 2008
  • By using transfer matrix method, the transmittance of 1D-superconductingdielectric photonic crystals (1D-SPCs) was calculated. The variance of the intensity and the bandwidth of the transmission are strongly dependent on the thicknesses, temperatures, and number of periods. We, also, obtained a new behavior at different critical temperatures of superconductor materials.

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금호강 유역의 오염총량 관리 대책 수립 (The Management Planning of Pollutant Loading Allocation in the Kumho River Basin)

  • 황병기;정효준
    • 한국환경과학회지
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    • 제11권10호
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    • pp.1125-1131
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    • 2002
  • This study was performed to plan pollutant loading allocation by sub-watershed at Kumho river basin located in the north Kyeongsang province. HEC-geoHMS which is extension program of ArcView was used to extract sub-watershed. To simulate water quality, Qua12eu model was calibrated and validated. BOD was simulated under several scenarios to evaluate reduction effects of pollutant loading. Uniform treatment and transfer matrix method was considered. Effects of headwater flow rate and efficiency waste water treatment plant were also considered.