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Design and validation of a hip and quadriceps assembly mechanism for a knee squat simulator
Thesis (MEng)--Stellenbosch University, 2020.
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| Format: | Thesis |
| Language: | English |
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Stellenbosch : Stellenbosch University.
2020
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| _version_ | 1867614012372418560 |
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| access_status_str | Open Access |
| author | Joubert, Ebard |
| author2 | Van der Merwe, Johan |
| author_browse | Joubert, Ebard Van der Merwe, Johan |
| author_facet | Van der Merwe, Johan Joubert, Ebard |
| author_sort | Joubert, Ebard |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University. |
| description | Thesis (MEng)--Stellenbosch University, 2020. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/108291 |
| institution | Stellenbosch University (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:45:16.097Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Stellenbosch : Stellenbosch University. |
| publisherStr | Stellenbosch : Stellenbosch University. |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/108291 Design and validation of a hip and quadriceps assembly mechanism for a knee squat simulator Joubert, Ebard Van der Merwe, Johan Muller, Jacobus Hendrik Stellenbosch University. Faculty of Engineering. Dept. of Mechanical and Mechatronic Engineering. Squat -- Simulation methods Biomechanics Knee -- Mechanical properties Genesis II PS implant Artificial knee -- Movements -- Simulation methods Orthopedic implants -- Testing Knee -- Movements -- Simulation methods Movement detectors UCTD Thesis (MEng)--Stellenbosch University, 2020. ENGLISH ABSTRACT: Given the prevalence of osteoarthritis, knee implants are continuously being improved. In vitro experiments can be used to evaluate the performance of an implant by investigating biomechanical behaviour of the knee joint inside a dynamic knee simulator that reproduces knee loading by inducing a force on the quadriceps muscles. This dissertation deals with the design and verification of such a knee simulator that can autonomously perform a squat motion. Artificial knees were constructed to be tested in the machine, with a posterior stabilised knee implant fixed to it. An optical position sensor was used to track the motion of the knee joint in order to describe the relative motion between components in the joint. Knee kinematics and the quadriceps forces were evaluated and validated against previous literature findings. The knee simulator was proved to deliver repeatable results and the artificial knees demonstrated accurate biomechanical behaviour while performing squat motions. AFRIKAANSE OPSOMMING: Knie vervangings word voortdurend verbeter en bestudeer as gevolg van die algemene voorkoms van osteoartritis in die gewrig. In vitro eksperimente kan gebruik word om die werking van knie vervangings te evalueer deur die biomeganiese gedrag van die kniegewrig binne ‘n dinamiese kniesimulator te ondersoek. So ‘n simulator reproduseer die kniebelading deur ‘n krag op die quadriceps-spiere te induseer. Hierdie proefskrik handel oor die ontwerp en verifikasie van so ‘n kniesimulator wat automaties ‘n hurkbeweging kan uitvoer. Kunsmatige knieë met ‘n posterior gestabiliseerde knie-inplantaat is gebou om in die masjien getoets te word. ‘n Optiese posisiesensor is gebruik om die beweging van die kniegewrig te meet sodat die relatiewe beweging tussen komponente in die gewrig beskryf kon word. Knie kinematika en die quadriceps-kragte is geëvalueer en bevestig deur dit met vorige literatuurbevindings te vergelyk. Daar is bewys dat die kniesimulator herhaalbare resultate gelewer het, en dat die kunsmatige knieë akkurate biomeganiese gedrag getoon het terwyl hulle hurkbewegings uitgevoer het binne die simulator. Masters 2020-02-26T10:00:09Z 2020-04-28T12:30:24Z 2020-02-26T10:00:09Z 2020-04-28T12:30:24Z 2020-03 Thesis http://hdl.handle.net/10019.1/108291 en Stellenbosch University. xii, 109 pages : illustrations application/pdf Stellenbosch : Stellenbosch University. |
| spellingShingle | Squat -- Simulation methods Biomechanics Knee -- Mechanical properties Genesis II PS implant Artificial knee -- Movements -- Simulation methods Orthopedic implants -- Testing Knee -- Movements -- Simulation methods Movement detectors UCTD Joubert, Ebard Design and validation of a hip and quadriceps assembly mechanism for a knee squat simulator |
| title | Design and validation of a hip and quadriceps assembly mechanism for a knee squat simulator |
| title_full | Design and validation of a hip and quadriceps assembly mechanism for a knee squat simulator |
| title_fullStr | Design and validation of a hip and quadriceps assembly mechanism for a knee squat simulator |
| title_full_unstemmed | Design and validation of a hip and quadriceps assembly mechanism for a knee squat simulator |
| title_short | Design and validation of a hip and quadriceps assembly mechanism for a knee squat simulator |
| title_sort | design and validation of a hip and quadriceps assembly mechanism for a knee squat simulator |
| topic | Squat -- Simulation methods Biomechanics Knee -- Mechanical properties Genesis II PS implant Artificial knee -- Movements -- Simulation methods Orthopedic implants -- Testing Knee -- Movements -- Simulation methods Movement detectors UCTD |
| url | http://hdl.handle.net/10019.1/108291 |
| work_keys_str_mv | AT joubertebard designandvalidationofahipandquadricepsassemblymechanismforakneesquatsimulator |