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PLAXIS | SOILVISION Wiki PLAXIS 3D Tutorial 08: Dynamic analysis of a generator on an elastic foundation
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    PLAXIS 3D Tutorial 08: Dynamic analysis of a generator on an elastic foundation

    Application PLAXIS 3D
    Version PLAXIS 3D
    Date created 04 October 2018
    Date modified 16 May 2022

    In this tutorial, the influence of a vibrating source on its surrounding soil is studied. To reduce the calculation time, only one-quarter of the overall geometry is modelled, using symmetry boundary conditions along the lines of symmetry. The physical damping due to the viscous effects is taken into consideration via Rayleigh damping. Also, due to radial wave propagation, 'geometric damping' can be significant in attenuating the vibration.

    The modelling of the boundaries is one of the key points in the dynamic calculation. In order to avoid spurious wave reflections at the model boundaries (which do not exist in reality), special conditions have to be applied in order to absorb waves reaching the boundaries.

    Tutorial case files

    Green book PLAXIS 3D CEV22.01 Tutorial 08: Dynamic Analysis of a Generator on Elastic Foundation.pdf

    Green book PLAXIS 3D CEV22 Tutorial 08: Dynamic Analysis of a Generator on Elastic Foundation.pdf

    Green book PLAXIS 3D CEV21 Tutorial 08: Dynamic Analysis of a Generator on Elastic Foundation.pdf

    Command log files

    Notepad spiral PLAXIS 3D CEV22.01 Tutorial 08: Dynamic Analysis of a Generator on Elastic Foundation - case A - without damping.p3dlog
    Notepad spiral PLAXIS 3D CEV22.01 Tutorial 08: Dynamic Analysis of a Generator on Elastic Foundation - case B - with damping.p3dlog

    Notepad spiral PLAXIS 3D CEV22 Tutorial 08: Dynamic Analysis of a Generator on Elastic Foundation - case A - without damping.p3dlog
    Notepad spiral PLAXIS 3D CEV22 Tutorial 08: Dynamic Analysis of a Generator on Elastic Foundation - case B - with damping.p3dlog

    Notepad spiral PLAXIS 3D CEV21 Tutorial 08: Dynamic Analysis of a Generator on Elastic Foundation - case A - without damping.p3dlog 
    Notepad spiral PLAXIS 3D CEV21 Tutorial 08: Dynamic Analysis of a Generator on Elastic Foundation - case B - with damping.p3dlog

    This exercise requires a PLAXIS 3D Ultimate license for Dynamics features.

    The attached *.p3dlog file contains all the commands to generate the model. With a Bentley Geotechnical SELECT Entitlement [GSE] licence, you can use the commands runner to open the *.p3dlog file and to execute all commands in one go, see also this instruction.

    Downloads

    • PLAXIS 3D 2018 - Tutorial Lesson 08.pdf
    • PLAXIS 3D 2018 - Tutorial Lesson 08A (no damping).p3dlog [command log file]
    • PLAXIS 3D 2018 - Tutorial Lesson 08B (with damping).p3dlog [command log file]

    See also

    Track previous PLAXIS 3D Tutorial 07: Rapid drawdown analysis   [Tutorials]


    Track next PLAXIS 3D Tutorial 09: Free vibration and earthquake analysis of a building   [Tutorials]


    PLAXIS 2D Tutorial 13: Dynamic analysis of a generator on an elastic foundation   [Tutorials]

    • PLAXIS 3D
    • generator
    • dynamic
    • foundation
    • PLAXIS
    • damping
    • Rayleigh
    • dynamics
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    • Micha van der Sloot Created by Bentley Colleague Micha van der Sloot
    • When: Wed, Dec 18 2019 10:46 AM
    • Felipe Fonseca Last revision by Bentley Colleague Felipe Fonseca
    • When: Mon, May 16 2022 5:56 AM
    • Revisions: 8
    • Comments: 0
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