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    Viscoelastic Model of Anisotropic Flywheels

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    A theoretical model for plane-stress, anisotropic, multiple-concentric-ring rotors subjected to time-variable spinning, press-fit, and thermal loads is presented. The problem solution is based on a mechanics of materials approach with a linear viscoelastic constitutive law and Schapery's quasi-elastic solution technique. The model accounts for the effects of temperature on the material creep properties by including time-shifting. Simulations of the stresses and strains in flywheel rotors under realistic non-isothermal load histories are given.


    flywheel, viscoelastic, quasi-elastic, non-isothermal, anisotropic

    Author Information:

    Emerson, RP
    Graduate Research Assistant, Perm State University, University Park, PA

    Bakis, CE
    Professor, Penn State University, University Park, PA

    Committee/Subcommittee: D30.04

    DOI: 10.1520/STP38405S