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Computer-Aided Engineering Journal

Issue 5 • Date October 1986

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Displaying Results 1 - 11 of 11
  • News

    Publication Year: 1986 , Page(s): 170 - 171
    Save to Project icon | PDF file iconPDF (931 KB)  
    Freely Available from IEEE
  • Editorial. Software engineering for CAE

    Publication Year: 1986
    Save to Project icon | PDF file iconPDF (354 KB)  
    Freely Available from IEEE
  • Automating the design process for electromagnetic devices

    Publication Year: 1986 , Page(s): 173 - 179
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1373 KB)  

    This paper presents the next logical step in CAD tools for the design of electromagnetic devices. Artificial intelligence techniques are used to incorporate the designer's role into a comprehensive system for automating the design process. This paper describes the design process and presents the structure of such a system. View full abstract»

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  • High-level languages and user interface managers for finite-element analysis systems

    Publication Year: 1986 , Page(s): 180 - 184
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (862 KB)  

    The construction of large finite-element design packages is a time-consuming and expensive task, requiring expertise in many areas of software engineering. Suitably designed high-level languages can help to alleviate this problem, making it possible for a design engineer to tailor a CAE package to his own particular requirements. View full abstract»

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  • Computer-aided design of high-frequency electromagnetic devices using the finite-element method

    Publication Year: 1986 , Page(s): 185 - 189
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (778 KB)  

    The finite-element method has been used in the electromagnetic analysis of a wide range of devices from microwave to optical frequencies. Established early on as a means of finding waveguide modes, it has more recently been applied in the determination of equivalent circuit parameters for arbitrarily shaped N-port devices such as phase changers, directional couplers and circulators. What is needed... View full abstract»

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  • Mesh generation for computational analysis. Part I: Electromagnetic and technical considerations for mesh generation

    Publication Year: 1986 , Page(s): 190 - 195
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1231 KB)  

    Geometric meshes used in the finite-element method and related techniques must meet three requirements: they must model geometric shapes adequately; they must respect physical phenomena of importance in the problem (for example crack singularities); and they must provide high local accuracy in regions of particular importance. Only simplex elements can be guaranteed to model geometry correctly if ... View full abstract»

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  • Mesh generation for computational analysis. Part II: Geometric and topological considerations for three-dimensional mesh generation

    Publication Year: 1986 , Page(s): 196 - 201
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1854 KB)  

    Successful use of finite-element analysis depends on an ability to model accurately the problem shape using geometric meshes. This paper deals with automatic three-dimensional mesh generation, reviewing the four major classes of mesh generator in use ¿¿ interactive graphics, mapping, filling and cutting techniques ¿¿ and presenting a new method which aims to solve some of the problems that arise w... View full abstract»

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  • A software package specification validation process

    Publication Year: 1986 , Page(s): 202 - 206
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1754 KB)  

    This paper proposes a technique for specification validation, termed the scenario-based prototype approach. This method of validation is particularly useful for software packages comprising substantial numbers of unrelated or loosely coupled functions able to act on a unified database but not restricted as to their actions or sequencing. Such packages commonly occur in computer-aided design system... View full abstract»

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  • GBASE - a generalised database mangement system for CAD

    Publication Year: 1986 , Page(s): 207 - 212
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1276 KB)  

    To both standardise and speed the development of software for computer-aided design systems a portable and powerful database structure and management system is required. Such systems are often produced on an ad hoc basis to satisfy current needs. This paper discusses a database structure which can satisfy many of the basic requirements of today, while being expansible for the future. View full abstract»

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  • Ballooning and infinitesimal scaling for unbounded field problems

    Publication Year: 1986 , Page(s): 213 - 216
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (575 KB)  

    Computer-aided design of electromagnetic devices often involves solving an unbounded elliptic boundary-value problem. Ballooning and infinitesimal scaling, two methods for dealing with the exterior of elliptic boundary-value problems, are shown to be sufficiently closely related for either method to be considered a generalisation of the other. They are shown to differ in their computational comple... View full abstract»

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  • Products

    Publication Year: 1986 , Page(s): 217 - 219
    Save to Project icon | PDF file iconPDF (669 KB)  
    Freely Available from IEEE