What Can the Rotordynamics Module Do?
The Rotordynamics Module, which requires the Structural Mechanics Module, can be used to model the rotor of a rotating machinery mounted with various stationary and rotating components. Using this module, you can obtain the dynamic response of a rotor when subjected to external loads and thus the operational behavior of the rotor for different angular speeds. You can also produce a stability map of the rotor against different angular speeds. Some major application areas are automotive, aerospace, power generation, electrical machines, and home appliances.
There are six physics interfaces in the Rotordynamics Module:
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The Solid Rotor interface for modeling the rotor as a 3D object in a corotating frame.
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The Solid Rotor, Fixed Frame interface for modeling the rotor as a 3D object in a space-fixed frame. This interface is limited to modeling rotors that are axially symmetric.
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The Beam Rotor interface for abstract modeling of the rotor as lines in a space-fixed frame.
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The Hydrodynamic Bearing interface for modeling the flow in the lubricant film in a bearing.
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The Solid Rotor with Hydrodynamic Bearing multiphysics interface for combined modeling of rotor and bearing and the interactions between them. The solid mechanics formulation of the rotor is used.
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The Beam Rotor with Hydrodynamic Bearing multiphysics interface for combined modeling of rotor and bearing and the interactions between them. The beam formulation of the rotor is used.
All physics interfaces in the Rotordynamics Module appear on the Model Wizard’s Select Physics page under Structural Mechanics > Rotordynamics.
In the COMSOL Multiphysics Reference Manual:
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Studies and Solvers
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The Physics Interfaces
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For a list of all the core physics interfaces included with a COMSOL Multiphysics software license, see the Physics Interface Guide.