The reduction of structural acoustic coupling in car bodies
| dc.contributor.advisor | Jha, Sunil | |
| dc.contributor.advisor | Tidbury, G. H. | |
| dc.contributor.author | Richards, T. L. | |
| dc.date.accessioned | 2009-10-29T16:45:46Z | |
| dc.date.available | 2009-10-29T16:45:46Z | |
| dc.date.issued | 1982-04 | |
| dc.description.abstract | The nature of sound in cars is discussed in the light of previous experimental and theoretical work, and the major contributions to interior noise are identified. The acoustic field inside a vibrating structure is analysed theoretically in terms of the acoustic cavity modes and the structural modes, and it is shown that'reduction of structural-acoustic coupling could reduce the response for a wide variety of force inputs. Finite element analyses of prismatic acoustic cavities and two-dimensinal ring structures are described and these are combined in a simple theoretical model of ring-mode excitation of sound. By stiffening selected structural elements, the structural-acoustic coupling, and hence the acoustic response, are reduced. | en_UK |
| dc.identifier.uri | http://hdl.handle.net/1826/3899 | |
| dc.language.iso | en | en_UK |
| dc.publisher | Cranfield University | en_UK |
| dc.title | The reduction of structural acoustic coupling in car bodies | en_UK |
| dc.type | Thesis or dissertation | en_UK |
| dc.type.qualificationlevel | Doctoral | en_UK |
| dc.type.qualificationname | PhD | en_UK |