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Structural analysis of a Tippler structure
Dissertation (MEng (Mechanical Engineering))--University of Pretoria, 2007.
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| Format: | Thesis |
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University of Pretoria
2013
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| _version_ | 1867613709448249344 |
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| access_status_str | Open Access |
| author2 | Burger, N.D.L (Nicolaas Daniel Lombard) |
| author_browse | Burger, N.D.L (Nicolaas Daniel Lombard) |
| author_facet | Burger, N.D.L (Nicolaas Daniel Lombard) |
| collection | Thesis |
| dc_rights_str_mv | © University of Pretor |
| description | Dissertation (MEng (Mechanical Engineering))--University of Pretoria, 2007. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/27601 |
| institution | University of Pretoria (South Africa) |
| last_indexed | 2026-06-10T12:40:27.509Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/27601 Structural analysis of a Tippler structure Burger, N.D.L (Nicolaas Daniel Lombard) pietervz@intekom.co.za Van Zyl, Petrus Johannes Adriaan Structure cracs Tippler structure UCTD Dissertation (MEng (Mechanical Engineering))--University of Pretoria, 2007. Tippler structures operate under arduous conditions for most of their operational lives. During routine structural inspections large fatigue cracks were discovered on some of the main structural components of a Tippler structure. These cracks were situated in a safety-critical area of the structure and therefore rendered the structure unsafe for operation. Structural failure could affect throughput enormously as the Tippler forms the first step in a coal terminal’s operational process. A high operational availability is therefore expected from these structures. The complex rotational working of the Tippler structure complicates the analytical evaluation of the structure. A further complication is the ever-changing boundary conditions while the structure rotates, together with the weight reduction of the coal in the wagons when the wagons are offloaded. Both these factors need to be taken into account when determining the stress levels in the structure while operational. This study identifies the main factors that led to the development of the structural cracks. The analysis process consisted of constructing a linear static finite element model of the Tippler structure and verifying the accuracy of the model by means of strain gauge measurements on the actual structure. From this analysis accurate stress values were obtained for the structure under operational conditions. A short literature study identified additional factors that would have an effect on the fatigue life of the structure under the conditions as experienced at a coal terminal. In the last part of the study the information obtained form the analysis and literature sources were applied to verify the suitability of the proposed changes made to the structure. Mechanical and Aeronautical Engineering MEng unrestricted 2013-09-07T11:49:45Z 2007-09-10 2013-09-07T11:49:45Z 2005-10-11 2007-09-10 2007-08-28 Dissertation Van Zyl, PJA 2007, Structural analysis of a Tippler structure, MEng Dissertation, University of Pretoria, Pretoria, viewed yymmdd <http://hdl.handle.net/2263/27601> Pretoria http://hdl.handle.net/2263/27601 http://upetd.up.ac.za/thesis/available/etd-08282007-103339/ © University of Pretor application/pdf University of Pretoria |
| spellingShingle | Structure cracs Tippler structure UCTD Structural analysis of a Tippler structure |
| title | Structural analysis of a Tippler structure |
| title_full | Structural analysis of a Tippler structure |
| title_fullStr | Structural analysis of a Tippler structure |
| title_full_unstemmed | Structural analysis of a Tippler structure |
| title_short | Structural analysis of a Tippler structure |
| title_sort | structural analysis of a tippler structure |
| topic | Structure cracs Tippler structure UCTD |
| url | http://hdl.handle.net/2263/27601 http://upetd.up.ac.za/thesis/available/etd-08282007-103339/ |