Abstract
A cylindrical shell is optimized to reduce the sound it radiates. A finite-element model of a shell is created and coupled to an efficient boundary element model to estimate the total radiated sound power for a given harmonic excitation. The shell is harmonically excited at the center of a bulkhead located at the half-length of the shell. The element thicknesses are then altered using the GENESIS optimization software to minimize the sound power radiated by the cylinder. Two objective functions were used: namely surface velocity using the beta-method, and modal amplitude of structural-modes. Excellent sound power reduction was found for both cases.
| Original language | English (US) |
|---|---|
| Title of host publication | 38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009 |
| Pages | 4387-4394 |
| Number of pages | 8 |
| Volume | 7 |
| State | Published - 2009 |
| Event | 38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009 - Ottawa, ON, Canada Duration: Aug 23 2009 → Aug 26 2009 |
Other
| Other | 38th International Congress and Exposition on Noise Control Engineering 2009, INTER-NOISE 2009 |
|---|---|
| Country/Territory | Canada |
| City | Ottawa, ON |
| Period | 8/23/09 → 8/26/09 |
All Science Journal Classification (ASJC) codes
- Acoustics and Ultrasonics