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Computer-Aided Engineering Journal

Issue 6 • Date Dec 1989

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Displaying Results 1 - 5 of 5
  • Electronic breadboarding reduces time to market, raises manufacturing yield

    Page(s): 207 - 214
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (484 KB)  

    This paper introduces a new class of CAE analysis tool-electronic breadboarding. Electronic breadboarding is an extension to simulation with a much higher level of interactivity and with a focus on finding design problems, not just predicting results. A comparison of electronic breadboarding to traditional breadboard testing shows the pros and cons of both and synergy in using the two together to reduce overall product development time View full abstract»

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  • A feature-based design for manufacture: CADCAM package

    Page(s): 215 - 220
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (360 KB)  

    Describes a method by which manufacturing constraints can be incorporated into the detailed design stage of a part through using CADCAM software. The method has been implemented in a software package which brings certain manufacturing constraints to the attention of a detail designer as a part is created on a CADCAM screen. By making the designer aware of these constraints, the part being designed should be designed for manufacture. The software developed relates to the detailed design of prismatic parts which subsequently need machining on machining centres or in a machining centre-based FMS. The designer specifies his part in terms of machined features which are then related in the software to the machine/system tooling available to produce them. By designing and using such a package, leadtimes and costs in both manufacture and manufacturing planning should be significantly reduced View full abstract»

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  • A rule-based approach employing feature recognition for engineering graphics characterisation

    Page(s): 221 - 228
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (416 KB)  

    A prototype system is described which characterises engineering graphics in a limited domain. This approach uses production rules to facilitate the use of pattern matching for part features and discernment between features. By emphasising feature recognition, an independence from the rules of orthographic projection is attained. This flexibility enables the system to handle additional part representations View full abstract»

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  • Network management in electrical distribution

    Page(s): 202 - 206
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (308 KB)  

    Electrical utilities constitute both an essential service and a very large business sector, with annual billings in excess of £11 billion in the UK alone. The article reviews the computers applications that are being installed to operate the vast geographically spread networks in a safe and efficient manner. Network operations seem to be an ideal candidate for an integrated information system, and indeed the Electricity Supply Industry is now beginning to implement such systems. This did not occur earlier due to technology shortcomings and organisational lines of demarcation View full abstract»

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  • Integrated CAD and the implications for design practice

    Page(s): 195 - 201
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (380 KB)  

    The paper reports on specific work carried out using the initial graphics exchange specification (IGES) for data transfer between two proprietary minicomputer-based and microcomputer-based computer-aided design (CAD) systems. The purpose of this work was to pinpoint and highlight the problems that may, and can, arise through performing detailed reflection, transmission and closed-loop tests using IGES translation. As a consequence, the implications of these results for `integrated' mechanical design practice are also presented View full abstract»

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