Modeling Vibration and Noise in a Gearbox: Bearing Version
Application ID: 90271
This example extends a model of vibration and noise in a five-speed synchromesh gearbox for a manual transmission vehicle. A detailed roller bearing model is used to represent the bearing dynamics. The gearbox vibration is computed using a time-dependent analysis for a specified engine speed and external load.
The normal acceleration of the gearbox housing is transformed to the frequency domain and used as a noise source for an acoustic analysis. The resulting sound pressure levels are evaluated in the near, far, and exterior fields.
This model example illustrates applications of this type that would nominally be built using the following products:
however, additional products may be required to completely define and model it. Furthermore, this example may also be defined and modeled using components from the following product combinations:
- COMSOL Multiphysics® and
- Acoustics Module and
- CAD Import Module and
- Multibody Dynamics Module and
- Rotordynamics Module
The combination of COMSOL® products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. Particular functionality may be common to several products. To determine the right combination of products for your modeling needs, review the Specification Chart and make use of a free evaluation license. The COMSOL Sales and Support teams are available for answering any questions you may have regarding this.
