Abstract
The demand for silent bearing applications has resulted in the development of an effective damping layer between the outer ring of a rolling bearing and the surrounding structure. By means of numerical modeling using both FEM and BEM techniques an induction motor for household appliances is analyzed. A hybrid modeling approach combining measured structural velocities with a BEM formulation is used to validate the acoustic model. The numerical results are compared with results obtained from sound intensity measurements estimating the radiated sound power level for a running electric mo tor. It is found that a relatively simple boundary element model is capable of predicting the radiated sound power in a wide frequency range. By using BEM in combination with the radiation modes formulation it is found that a properly designed viscoelastic layer in the vicinity of the bearing is theoretically capable of reducing a fair amount of sound emitted by the motor.
| Original language | Undefined |
|---|---|
| Title of host publication | proceedings of Inter-Noise Conference 2002, 19-21 August 2002, Detroit, Michigan, USA |
| Editors | Ahmet Selamet |
| Place of Publication | Detroit MI, USA |
| Publisher | INCE USA |
| Pages | 1-6 |
| Number of pages | 6 |
| ISBN (Print) | CD-rom |
| Publication status | Published - 19 Aug 2002 |
| Event | 31st International Conference on Noise Control Engineering, Inter-Noise - Dearborn, USA Duration: 19 Aug 2002 → 21 Aug 2002 |
Conference
| Conference | 31st International Conference on Noise Control Engineering, Inter-Noise |
|---|---|
| Period | 19/08/02 → 21/08/02 |
| Other | August 19-21, 2002 |
Keywords
- IR-58831
- METIS-210721