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Computer-Aided Engineering Journal

Issue 4 • Date Aug. 1990

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Displaying Results 1 - 5 of 5
  • Advanced thermal analysis of packaged electronic systems using computational fluid dynamics techniques

    Publication Year: 1990, Page(s):104 - 106
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (319 KB)

    Most electronic system failures are due to thermal overstressing, and the major current trends in electronics design are adding to the thermal problem. This article introduces a new class of electronics thermal analysis tool, which uses computational fluid dynamics (CFD) techniques to predict the three-dimensional air movement and associated heat-transfer processes in electronics enclosures.<... View full abstract»

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  • Computer-aided design of high-frequency circuits

    Publication Year: 1990, Page(s):113 - 114
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (161 KB)

    A method of using a computer to design high-frequency circuits is described. This method basically involves the generation of a Smith Chart using a personal computer (PC). The usefulness of the computer-generated Smith Chart is demonstrated through the design of a high-frequency transistor amplifier. The measured gain of an amplifier built with design parameters thus obtained compared favourably w... View full abstract»

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  • An expert system for automatic extraction of machining features and tooling selection for Automats

    Publication Year: 1990, Page(s):99 - 103
    Cited by:  Papers (5)  |  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (333 KB)

    This article reports on the design and implementation of an expert system for automatic identification of machined surfaces on symmetric rotational components manufactured on Automats. The OPS5PLUS expert system shell was used to represent the procedural knowledge to reason and extract both the internal and external part features and their dimensions in order to select form tools for machining. De... View full abstract»

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  • Tools for analysis of control-structure interaction

    Publication Year: 1990, Page(s):107 - 112
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (490 KB)

    The authors discuss some of the aspects of coupling computer methods in control system analysis with those in structural dynamics. This analysis is often called control-structure interaction (CSI). A strong emphasis is placed on the use of appropriate structural representations and the related issue of reducing the size of the structural model while retaining an accurate dynamic description. These... View full abstract»

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  • A CAD package for simulation of parallel processing architectures

    Publication Year: 1990, Page(s):115 - 122
    Cited by:  Papers (1)  |  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (546 KB)

    This article presents a CAD package which can be used in evaluating the performance of user-defined parallel processing architectures (PPA). The package allows the simulation of different PPA systems and evaluation of their performance with respect to how the architecture influences the system operation, speed of throughput of task execution and cost. Any of the architectures classified according ... View full abstract»

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