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MORe 5.9.0 documentation
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MORe 5.9.0 documentation
  • Installation
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    • ANSYS
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          • Thermal FRF evaluation
            • FRF animator
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          • Thermo-mechanical FRF evaluation
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  • API Reference
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        • simulation_setup
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      • Load Cases API
        • mechanical_load_case_api
          • MechanicalLoadCaseSetup
        • thermal_load_case_api
          • ThermalLoadCaseSetup
      • Mechanical Loads API
        • component_acceleration_api
          • ComponentAccelerationSetup
        • composition_acceleration_api
          • CompositionAccelerationSetup
        • controller_command_api
          • ControllerCommandSetup
        • link_load_api
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          • LinkSpacerSetup
        • rail_profile_api
          • RailProfileSetup
      • Thermal Loads API
        • heat_flow_api
          • HeatFlowSetup
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          • HeatFluxSetup
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        • interface_heat_flow_api
          • InterfaceHeatFlowSetup
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            • TransientPartialFindCreatorSetup
      • postprocessor
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  • IDE Integration
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Link properties¶

Damping methods¶

The following damping methods can be applied to links in MORe using the corresponding link properties.

Viscous damping¶

The damping force is proportional to the velocity of the link. Usually referred to as the viscous damping coefficient.

Bearing link definition

Hysteretic damping¶

The damping force is proportional to the displacement of the link. Often referred to in literature as the loss factor. Mathematically, hysteretic damping can only be defined in the frequency domain. Thus, direct use of hysteretic damping is only possible for FRF & Modal analyses (by deselecting the default equivalent viscous damping option). For transient analysis, the equivalent viscous damping option cannot be removed, it always incorporates hysteretic damping indirectly.

Bearing link definition

Equivalent viscous damping¶

In the time-domain, a static displacement with hysteretic damping would result in an imaginary damping force acting on the system. To overcome this issue, the hysteretic damping parameters are converted into viscous damping parameters under the assumption that at the eigenfrequencies, the hysteretic and viscous damping force amplitudes are the same.

Bearing link definition

Context Menu¶

Add link property¶

Add the selected link and define its properties.

Duplicate/Delete¶

Duplicate/Delete the selected link property.

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General stiffness
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On this page
  • Link properties
    • Damping methods
    • Viscous damping
    • Hysteretic damping
    • Equivalent viscous damping
    • Context Menu
      • Add link property
      • Duplicate/Delete