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Aktiewe ruisbeheer by 'n aksiale waaier
Tesis (M. Ing.) -- Universiteit van Stellenbosch, 1994.
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| Main Author: | |
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| Other Authors: | |
| Format: | Thesis |
| Language: | Afrikaans |
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Stellenbosch : Stellenbosch University
2012
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| _version_ | 1867614120171274242 |
|---|---|
| access_status_str | Open Access |
| author | Du Toit, Daniel N. J. |
| author2 | Du Plessis, Jan |
| author_browse | Du Plessis, Jan Du Toit, Daniel N. J. |
| author_facet | Du Plessis, Jan Du Toit, Daniel N. J. |
| author_sort | Du Toit, Daniel N. J. |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Tesis (M. Ing.) -- Universiteit van Stellenbosch, 1994. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/58241 |
| institution | Stellenbosch University (South Africa) |
| language | Afrikaans |
| last_indexed | 2026-06-10T12:46:59.291Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2012 |
| publishDateRange | 2012 |
| publishDateSort | 2012 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/58241 Aktiewe ruisbeheer by 'n aksiale waaier Du Toit, Daniel N. J. Du Plessis, Jan Stellenbosch University. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. Fans (Machinery) -- Noise Noise control Dissertations -- Electrical engineering Tesis (M. Ing.) -- Universiteit van Stellenbosch, 1994. This thesis is a viability study which investigates the application of active noise control to an axial flow fan. The physical phenomena and characteristics of the problem are examined and modelled. This model is then analysed in the light of the fundamental principles of active noise cancellation to evaluate the possibilities of control. It found that the character of the noise signal as well as the physical boundaries within which it propagates are suitable for the application of a self-tuning active noise control system. A feed forward strategy which minimises the total amount of acoustical power output is proposed. The constraining factors are the fact that the fan cannot be modelled as a point source and measurements taken in the vicinity of the fan are contaminated by disturbances due to air flow and structural vibrations. Masters 2012-08-27T11:38:52Z 2012-08-27T11:38:52Z 1994 Thesis http://hdl.handle.net/10019.1/58241 af Stellenbosch University 113 pages : ill. application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Fans (Machinery) -- Noise Noise control Dissertations -- Electrical engineering Du Toit, Daniel N. J. Aktiewe ruisbeheer by 'n aksiale waaier |
| title | Aktiewe ruisbeheer by 'n aksiale waaier |
| title_full | Aktiewe ruisbeheer by 'n aksiale waaier |
| title_fullStr | Aktiewe ruisbeheer by 'n aksiale waaier |
| title_full_unstemmed | Aktiewe ruisbeheer by 'n aksiale waaier |
| title_short | Aktiewe ruisbeheer by 'n aksiale waaier |
| title_sort | aktiewe ruisbeheer by n aksiale waaier |
| topic | Fans (Machinery) -- Noise Noise control Dissertations -- Electrical engineering |
| url | http://hdl.handle.net/10019.1/58241 |
| work_keys_str_mv | AT dutoitdanielnj aktieweruisbeheerbynaksialewaaier |