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Design of a test setup for measuring all load components acting on tillage and planting implements.
Thesis (MEng)--Stellenbosch University, 2021.
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| Format: | Thesis |
| Language: | en_ZA |
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Stellenbosch : Stellenbosch University
2021
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| _version_ | 1867613820455747584 |
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| access_status_str | Open Access |
| author | Van Santen, J. W. |
| author2 | Coetzee, C. J. |
| author_browse | Coetzee, C. J. Van Santen, J. W. |
| author_facet | Coetzee, C. J. Van Santen, J. W. |
| author_sort | Van Santen, J. W. |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Thesis (MEng)--Stellenbosch University, 2021. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/123605 |
| institution | Stellenbosch University (South Africa) |
| language | en_ZA |
| last_indexed | 2026-06-10T12:42:12.448Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/123605 Design of a test setup for measuring all load components acting on tillage and planting implements. Van Santen, J. W. Coetzee, C. J. Stellenbosch University. Faculty of Engineering. Dept. of Mechanical and Mechatronic Engineering. Agricultural Engineering Tillage Load measurement Planting Implements UCTD Agricultural systems Thesis (MEng)--Stellenbosch University, 2021. ENGLISH ABSTRACT: Agriculture forms the backbone of the economic systems of any country. Feeding the world population sustainably is becoming increasingly challenging, forcing the scale of farming operations to increase to keep up with growing demand. Field crops ill South Africa contributed 25.8% towards the gross value of the country's agricultural production in 2016/17. Larger and more sophisticated tillage, seeding and planting implements are needed by farmers to supply in the demand. One of South Africa's leading manufacturers of seeding and planting implements are constantly trying to improve their designs an minimise down- time due to equipment breakdowns. A problem they are experiencing, is the development of cracks on the frames of their implements. To address this problem, further research into the exact cause of the problem was needed. This project entailed the design, manufacture, and testing of a test setup with the ability to measure all load components acting on tillage and planting implements. Data obtained with the test setup can thus be used to perform accurate design calculations, as inputs in finite element simulations, and to perform accurate fatigue analysis. The implement designs can therefore be improved to better withstand operational conditions and minimise crack formation. Laboratory controlled testing, and subsequent field tests, proved that the Laboratory controlled testing, and subsequent field tests, proved that the designed test setup was able to isolate and accurately measure each of the three orthogonal load components, as well as the main moment. It was further shown that the remaining two moments could accurately be calculated using the measures load components and methods discussed. The conclusion was made from the field tests that an increase in speed does not have a noticeable effect of the mean loads measured. It was further concluded that an increase in working depth would result in an increase in loads measured, especially in the draught- and vertical-force directions. Finally, it was confirmed that an increase in turning radius (approaching movement in a straight line) would result in a decreased lateral force measurement. AFRIKAANSE OPSOMMING: Landbou vorm die ruggraat van die ekonomie van enige land. volhoubaar die wéreldbevolking te voed, raak ál meer uitdagend. Dit forseer landbou om op 'n groter skaal te geskied ten einde in die groeiende vraag te voorsien. Oopgrond-verbouing van landbougewasse in Suid-Afrika het in 2016/17 25.8% bygedra tot die totale bruto waarde van landbouproduksie in die land. Groter en meer gesofist.ikeerde bewerking-, saai- en plant-implemente word deur boere benodig om in (lie vraag te voorsien. van Suid-Afrika se vooraanstaande vervaardigers van saai- en plant- as gevolg van gebreekte toerusting te verminder. 'n Probleem wat hulle ervaar is die ontstaan van krake op die raamwerke van die implemente. 0m hierdie probleem aan te spreek, was verdere navorsing oor die presiese oorsaak van die probleem nodig. Hierdie projek het gehandel oor die ontwerp, vervaardiging en toets van 'n toet,sopstelling Inet die vennoé al die las-komponente wat op bewerking- en plant-ilnplemente inwerk, te bepaal. Data vertsarnel deur die toetsopstelling kan onder andere gebruik word om akkurate ontwerpsberekeninge te maak, as insette in eindige-element simulasies en om vermoeidheidsanalises uit te voer. Die implement-ontwerpe kan sodoende verbeter word om operasionele toestande meer effektief te kan hanteer en sò ook die voorkoms van krake te verminder. Laboratorium-beheerde toetse en die (laaropvolgende veldt,oetse, het getoon dat die toetsopstelling in staat is om elk van die drie ortogonale krag- komponente, sowel as die hoof-illoment, te isoleer en akkuraat te meet. Dit was verder bewys dat die orige twee momente akkuraat bereken kon word deur die gemete lesings van die toetsopstelling, tesame met die bespreekte metode, te gebruik. Met die veldtoetse was daar tot die gevolgtrekkiug gekom dat 'n verlneerdering ill spoed nié 'n merkwaardige effek op die gemiddelde kraglesings het Hie. Verder was daar bevind dat 'n vermeerdering in werk-diepte van die tand ‘n gevolglike vermeerdering in die kraglesings van veral die hoof-trekkrag en vertikale krag het. Laastens. is dit bevestig dat 'n venneerdering in draairadius (waar beweging neig na 'n reguit lyn) tot 'n vernlindering in die laterale kraglesing lei. Masters 2021-06-23T15:22:28Z 2021-12-22T14:11:51Z 2021-06-23T15:22:28Z 2021-12-22T14:11:51Z 2021-12 Thesis http://hdl.handle.net/10019.1/123605 en_ZA Stellenbosch University 140 pages application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Agricultural Engineering Tillage Load measurement Planting Implements UCTD Agricultural systems Van Santen, J. W. Design of a test setup for measuring all load components acting on tillage and planting implements. |
| title | Design of a test setup for measuring all load components acting on tillage and planting implements. |
| title_full | Design of a test setup for measuring all load components acting on tillage and planting implements. |
| title_fullStr | Design of a test setup for measuring all load components acting on tillage and planting implements. |
| title_full_unstemmed | Design of a test setup for measuring all load components acting on tillage and planting implements. |
| title_short | Design of a test setup for measuring all load components acting on tillage and planting implements. |
| title_sort | design of a test setup for measuring all load components acting on tillage and planting implements |
| topic | Agricultural Engineering Tillage Load measurement Planting Implements UCTD Agricultural systems |
| url | http://hdl.handle.net/10019.1/123605 |
| work_keys_str_mv | AT vansantenjw designofatestsetupformeasuringallloadcomponentsactingontillageandplantingimplements |