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      • Department of Electrical and Electronics Engineering
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      An electrical circuit theoretical method for time-and frequency-domain solutions of the structural mechanics problems

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      Author
      Ekinci, A. S.
      Atalar, Abdullah
      Date
      1999
      Source Title
      International Journal for Numerical Methods in Engineering
      Print ISSN
      0029-5981
      Electronic ISSN
      1097-0207
      Publisher
      John Wiley & Sons Ltd.
      Volume
      45
      Issue
      10
      Pages
      1485 - 1507
      Language
      English
      Type
      Article
      Item Usage Stats
      135
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      113
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      Abstract
      Shrinking device dimensions in integrated circuit technology made integrated circuits with millions of components a reality. As a result of this advance, electrical circuit simulators that can handle very large number of components have emerged. These programs use new circuit simulation techniques and can find solutions accurately and quickly. In this paper, we apply these techniques to structural mechanics problems by adopting electrical circuit equivalents. We first apply finite element formulation to the mechanical problem. The obtained sets of equations are treated as if they are sets of equations of an equivalent electrical circuit which consists of linear circuit elements such as capacitors, inductors and controlled sources. The equivalent circuit is obtained in the form of a circuit netlist and solved using a general purpose electrical circuit simulator. Several examples showing the advantages of the circuit simulation techniques are demonstrated. Asymptotic waveform evaluation technique which is widely used for simulation of large electrical circuits is also studied for the same examples and the speed-up advantage is shown.
      Keywords
      Asymptotic waveform evaluation (AWE)
      Circuit simulation
      Electrical modelling of mechanical systems
      Finite element modelling
      Structural mechanics
      Permalink
      http://hdl.handle.net/11693/25219
      Published Version (Please cite this version)
      https://doi.org/10.1002/(SICI)1097-0207(19990810)45:10<1485::AID-NME642>3.0.CO;2-B
      Collections
      • Department of Electrical and Electronics Engineering 3613
      • Institute of Materials Science and Nanotechnology (UNAM) 1858
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