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Computing & Control Engineering Journal

Issue 5 • Date Oct 1993

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Displaying Results 1 - 6 of 6
  • Active vibration control in automotive chassis systems

    Page(s): 225 - 232
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (1384 KB)  

    For over 100 years, comfort in road vehicles has been linked to the introduction of passive components that isolate passenger compartments from mechanical vibration. Near-optimal performance has been achieved by years of experimentation and testing, careful selection and shaping of individual component characteristics, and the development of ingenious mechanisms intended to minimise the effect of inherent design constraints associated with passive systems. It is now apparently the case that only a technological leap can significantly improve vibration suppression in automotive chassis systems over that achieved to date. The author considers the analysis and design of active control solutions for two automotive chassis subsystems susceptible to mechanical vibration phenomena View full abstract»

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  • Development of a stereolithography preprocessor for model verification

    Page(s): 218 - 224
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (456 KB)  

    An overview of the development of a stereolithography preprocessor for constructing wire frame images for model verifications is presented. Based on the data representation in stereolithography files, the preprocessor is designed to consist of four subsystems-data input in both ASCII and binary format, wire frame images construction, interactive verifications and data output in both ASCII and binary format-so as to enable visualisation of the stereolithography model and geometrical orientation of the model. The design allows the user to optimise part orientation for the stereolithography process. The preprocessor has been evaluated to be fully functional and versatile with an excellent graphics display for the model View full abstract»

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  • System dynamics- background, methodology and applications. 1. Background and methodology

    Page(s): 201 - 208
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (1420 KB)  

    System dynamics is a methodology for modelling and redesign of manufacturing, business, and similar systems which are part man, part machine. It has been around for over 30 years. Some management consultants make extensive use of system dynamics, whilst others do not. Why is this so, and is it primarily an educational problem? The author describes the methodology, traces its history, and shows how it fits into a problem-solving spectrum in between, but overlapping with, system theory and system thinking. He shows how both servotheory and cybernetics have influenced system dynamics and examines the linguistic, investigative and numerical information sources which can be used for model building. Central to this exercise is the use of input-output analyses which are the system dynamics equivalent of writing down balance equations for hardware systems. The author also comments on the important role of system dynamics `user friendly' software in business games, and the relevance of the method as perceived by a very experienced management consultant View full abstract»

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  • Object-oriented analysis of a flexible batch production system

    Page(s): 233 - 238
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (740 KB)  

    The object-oriented analysis (OOA) of a problem frequently encountered in control engineering is described: the automated control of a flexible production plant. The advantages of flexible production are explained and the choice of OOA as an approach is outlined. Using a simple example, readily generalisable to a wide range of cases, the steps of the analysis are described and illustrated. An extension of the method allowing the rigorous verification of the analysis results using Petri nets is presented. The advantages of the approach, both technical and economic, are described View full abstract»

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  • Computerised Parkinson's Law

    Page(s): 197 - 198
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (196 KB)  

    Cyril Northcote Parkinson, 1909-1993, coined the phrase `Parkinson's Law' in an article published by the Economist in 1958: work expands to fill the time available for its completion. Parkinson collected his aphorisms and published them in a book. This article argues, as recent events show, that work expands so as to fill the computers available and then overflows. But it needn't! View full abstract»

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  • Adapting decorative patterns for ceramic tableware

    Page(s): 209 - 217
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (544 KB)  

    The advent of three-dimensional computer graphics has allowed the use of the computer as a powerful tool to design and produce the patterns used to decorate ceramic dinnerware. The authors describe the special computer programmes which have been developed to adapt decorative patterns into different variations of size and shape of dinnerware. Geometrically, this means that these adapted patterns can be fitted along a line, circular arc or a spline-type curve. The computerisation means elimination of tedious adaptation work and more time for creative work for the designers. It is especially useful for intricate patterns that would otherwise require days or even weeks of artist board work, or CAD draughting View full abstract»

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Aims & Scope

Published from 2003-2007, Computing and Control Engineering was concerned with computing, communications, control and instrumentation.

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