Analysis of the Design Criteria for Ancient Greek and Roman Catapults

Bidragets oversatte titel: Analyse af designkriterierne for antikke græske og romerske katapulter.

    Publikation: Bidrag til bog/antologi/rapport/konference-proceedingKonferencebidrag i proceedingsForskning

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    Resumé

    This paper will give a short overview of use of COMSOL Multiphysics for analyzing ancient Greek and Roman catapults with the main focus on the energy storing torsion springs. Catapults have been known and used in the Greek and Roman world from around 399 BC and a fully standardized design for powerful torsion catapults emerged around 270 BC, based on one basic factor, the diameter of the torsion springs. This value is then scaled to give all vital structural dimensions of the catapult. How optimal this design is has until now not been fully understood and earlier work has been dominated by trial-and-error methods. The use of COMSOL Multiphysics enables the construction of virtual catapults parts, non-linear analysis of structural parts where no analytical solution is known as well the analysis of the surviving designs, with respect to optimal performance. The result from COMSOL Multiphysics is compared to a traditional analysis and to data obtained from Sigma X Section software.
    OriginalsprogEngelsk
    TitelCOMSOL Multiphysics Conference 2010 Paris : Proceedings of the COMSOL Conference 2010 Paris
    Antal sider6
    Publikationsdato17. nov. 2011
    Sider1-6
    ISBN (Elektronisk)978-0-9825697-6-4
    StatusUdgivet - 17. nov. 2011

    Emneord

    • Catapult
    • Ancient technology

    Citer dette

    Paasch, K. (2011). Analysis of the Design Criteria for Ancient Greek and Roman Catapults. I COMSOL Multiphysics Conference 2010 Paris: Proceedings of the COMSOL Conference 2010 Paris (s. 1-6)
    Paasch, Kasper. / Analysis of the Design Criteria for Ancient Greek and Roman Catapults. COMSOL Multiphysics Conference 2010 Paris: Proceedings of the COMSOL Conference 2010 Paris. 2011. s. 1-6
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    abstract = "This paper will give a short overview of use of COMSOL Multiphysics for analyzing ancient Greek and Roman catapults with the main focus on the energy storing torsion springs. Catapults have been known and used in the Greek and Roman world from around 399 BC and a fully standardized design for powerful torsion catapults emerged around 270 BC, based on one basic factor, the diameter of the torsion springs. This value is then scaled to give all vital structural dimensions of the catapult. How optimal this design is has until now not been fully understood and earlier work has been dominated by trial-and-error methods. The use of COMSOL Multiphysics enables the construction of virtual catapults parts, non-linear analysis of structural parts where no analytical solution is known as well the analysis of the surviving designs, with respect to optimal performance. The result from COMSOL Multiphysics is compared to a traditional analysis and to data obtained from Sigma X Section software.",
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    Paasch, K 2011, Analysis of the Design Criteria for Ancient Greek and Roman Catapults. i COMSOL Multiphysics Conference 2010 Paris: Proceedings of the COMSOL Conference 2010 Paris. s. 1-6.

    Analysis of the Design Criteria for Ancient Greek and Roman Catapults. / Paasch, Kasper.

    COMSOL Multiphysics Conference 2010 Paris: Proceedings of the COMSOL Conference 2010 Paris. 2011. s. 1-6.

    Publikation: Bidrag til bog/antologi/rapport/konference-proceedingKonferencebidrag i proceedingsForskning

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    AB - This paper will give a short overview of use of COMSOL Multiphysics for analyzing ancient Greek and Roman catapults with the main focus on the energy storing torsion springs. Catapults have been known and used in the Greek and Roman world from around 399 BC and a fully standardized design for powerful torsion catapults emerged around 270 BC, based on one basic factor, the diameter of the torsion springs. This value is then scaled to give all vital structural dimensions of the catapult. How optimal this design is has until now not been fully understood and earlier work has been dominated by trial-and-error methods. The use of COMSOL Multiphysics enables the construction of virtual catapults parts, non-linear analysis of structural parts where no analytical solution is known as well the analysis of the surviving designs, with respect to optimal performance. The result from COMSOL Multiphysics is compared to a traditional analysis and to data obtained from Sigma X Section software.

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    Paasch K. Analysis of the Design Criteria for Ancient Greek and Roman Catapults. I COMSOL Multiphysics Conference 2010 Paris: Proceedings of the COMSOL Conference 2010 Paris. 2011. s. 1-6