Analisis Kegagalan Pada Roda Gigi Miring Intermediate Gear 2 Pada Gear Box Untuk Roller Press Milling Machine
This paper reports the result of an investigation of a fatigue failure of a helical gear in a reducer gear box used in roller press milling machine. Standard procedures in stress analysis on helical gear were used in failure analysis of this helical gear. It was found that the gear failed by fatigue...
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Department of Mechanical Engineering, Faculty of Engineering, Universitas Andalas
2017-10-01
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| Series: | Metal: Jurnal Sistem Mekanik dan Termal |
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| Online Access: | https://metal.ft.unand.ac.id/index.php/metal/article/view/36 |
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| author | Andri Anto Dedison Gasni |
| author_facet | Andri Anto Dedison Gasni |
| author_sort | Andri Anto |
| collection | DOAJ |
| description | This paper reports the result of an investigation of a fatigue failure of a helical gear in a reducer gear box used in roller press milling machine. Standard procedures in stress analysis on helical gear were used in failure analysis of this helical gear. It was found that the gear failed by fatigue fracture. Beach marks on the fracture surfaces were clearly visible. Detail examination of the surface of the gear revealed that extensive surface damage had occurred in the form of pitting and scuffing. Sub-surface damages in the form of spalling were also observed. Such observations indicated that the gear was under excessive contact stress during operation. Stress analysis did, in fact, confirm such hypothesis. Stress analysis has been conducted by using Niemann methods and Lewis equation. Finite element methods also have been conducted by using commercial software where the stress was obtained on the root of gear by modeling with pitting, without pitting, and matting. The results show that the working stresses on the root of gear were lower than strenght of gear material. It was proofed that the gear failure due to dynamic loading but not because of static loading. These surface and sub-surface damages leed to fatigue crack initiation followed by crack growth and eventual fracture excessive contact stress. It is showed that from contact mechanic analysis showed that Hertzian stress and shear stress at surface and at sub surface were excessive. It is concluded that the helical gear failed by fatigue fracture initiated by surface and sub-surface damages resulting from excessive contact stress. |
| format | Article |
| id | doaj-art-5ffe206c20084abda80b674d56e62582 |
| institution | Kabale University |
| issn | 2598-1137 2597-4483 |
| language | English |
| publishDate | 2017-10-01 |
| publisher | Department of Mechanical Engineering, Faculty of Engineering, Universitas Andalas |
| record_format | Article |
| series | Metal: Jurnal Sistem Mekanik dan Termal |
| spelling | doaj-art-5ffe206c20084abda80b674d56e625822025-02-01T10:20:39ZengDepartment of Mechanical Engineering, Faculty of Engineering, Universitas AndalasMetal: Jurnal Sistem Mekanik dan Termal2598-11372597-44832017-10-0112556910.25077/metal.1.2.55-69.20179Analisis Kegagalan Pada Roda Gigi Miring Intermediate Gear 2 Pada Gear Box Untuk Roller Press Milling MachineAndri Anto0Dedison Gasni1Jurusan Teknik Mesin, Fakultas Teknik, Universitas Andalas, PadangJurusan Teknik Mesin, Fakultas Teknik, Universitas Andalas, PadangThis paper reports the result of an investigation of a fatigue failure of a helical gear in a reducer gear box used in roller press milling machine. Standard procedures in stress analysis on helical gear were used in failure analysis of this helical gear. It was found that the gear failed by fatigue fracture. Beach marks on the fracture surfaces were clearly visible. Detail examination of the surface of the gear revealed that extensive surface damage had occurred in the form of pitting and scuffing. Sub-surface damages in the form of spalling were also observed. Such observations indicated that the gear was under excessive contact stress during operation. Stress analysis did, in fact, confirm such hypothesis. Stress analysis has been conducted by using Niemann methods and Lewis equation. Finite element methods also have been conducted by using commercial software where the stress was obtained on the root of gear by modeling with pitting, without pitting, and matting. The results show that the working stresses on the root of gear were lower than strenght of gear material. It was proofed that the gear failure due to dynamic loading but not because of static loading. These surface and sub-surface damages leed to fatigue crack initiation followed by crack growth and eventual fracture excessive contact stress. It is showed that from contact mechanic analysis showed that Hertzian stress and shear stress at surface and at sub surface were excessive. It is concluded that the helical gear failed by fatigue fracture initiated by surface and sub-surface damages resulting from excessive contact stress.https://metal.ft.unand.ac.id/index.php/metal/article/view/36helical gearhelical gear failurefailure analysisfatigue failurecontact mechanics |
| spellingShingle | Andri Anto Dedison Gasni Analisis Kegagalan Pada Roda Gigi Miring Intermediate Gear 2 Pada Gear Box Untuk Roller Press Milling Machine Metal: Jurnal Sistem Mekanik dan Termal helical gear helical gear failure failure analysis fatigue failure contact mechanics |
| title | Analisis Kegagalan Pada Roda Gigi Miring Intermediate Gear 2 Pada Gear Box Untuk Roller Press Milling Machine |
| title_full | Analisis Kegagalan Pada Roda Gigi Miring Intermediate Gear 2 Pada Gear Box Untuk Roller Press Milling Machine |
| title_fullStr | Analisis Kegagalan Pada Roda Gigi Miring Intermediate Gear 2 Pada Gear Box Untuk Roller Press Milling Machine |
| title_full_unstemmed | Analisis Kegagalan Pada Roda Gigi Miring Intermediate Gear 2 Pada Gear Box Untuk Roller Press Milling Machine |
| title_short | Analisis Kegagalan Pada Roda Gigi Miring Intermediate Gear 2 Pada Gear Box Untuk Roller Press Milling Machine |
| title_sort | analisis kegagalan pada roda gigi miring intermediate gear 2 pada gear box untuk roller press milling machine |
| topic | helical gear helical gear failure failure analysis fatigue failure contact mechanics |
| url | https://metal.ft.unand.ac.id/index.php/metal/article/view/36 |
| work_keys_str_mv | AT andrianto analisiskegagalanpadarodagigimiringintermediategear2padagearboxuntukrollerpressmillingmachine AT dedisongasni analisiskegagalanpadarodagigimiringintermediategear2padagearboxuntukrollerpressmillingmachine |