Dabasa, Tamana (2016) Finite Element Analysis and Optimization of Single Cylinder Engine Crankshaft for Improving Fatigue Life. Masters thesis, Addis Ababa University.
![[img]](http://thesisbank.jhia.ac.ke/style/images/fileicons/application_pdf.png) |
PDF (Finite Element Analysis and Optimization of Single Cylinder Engine Crankshaft for Improving Fatigue Life)
Tamana Dabasa.pdf - Accepted Version Restricted to Repository staff only Download (2MB) | Request a copy |
Abstract
Crankshaft is large volume production component with a complex geometry in the Internal Combustion (ICE) Engine. This converts the reciprocating displacement of the piston in to a rotary motion of the crank. An attempt is made in this paper to study improve fatigue life of single cylinder engine crankshaft with geometry optimization. The modeling of the original and optimized crankshaft is created using SOLIDWORK Software and was imported to ANSYS software for analysis. Finite element analysis (FEA) is performed to obtain maximum stress point or dangerous area, and life of original and optimized crank shaft using the ANSYS software with applying the boundary conditions. The maximum stress appears at the fillet areas between the crankshaft journal and crank web. The FE model of the crankshaft geometry is meshed with tetrahedral elements. Mesh refinement are done on the crank pin fillet and journal fillet, so that fine mesh is obtained on fillet areas, which are generally critical locations on crankshaft. The failure in the crankshaft initiated at the fillet region of the journal, and fatigue is the dominant mechanism of failure. Geometry optimization resulted in 15% stress reduction of and life is optimized 62.55% crankshaft which was achieved by changing crankpin fillet radius and 25.88% stress reduction of and life is optimized 70.63% of crankpin diameter change. Then the results Von-misses stress, shear stress and life of crankshaft is done using ANSYS software results. From result of geometry optimization parameter like changing crankpin fillet radius and crankpin diameter are changes in model of crankshaft to improvement in fatigue life.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Crankshaft, Fatigue, Finite Element Analysis (FEA), Optimization. |
| Subjects: | H Social Sciences > HD Industries. Land use. Labor H Social Sciences > HD Industries. Land use. Labor > HD28 Management. Industrial Management T Technology > T Technology (General) T Technology > TJ Mechanical engineering and machinery T Technology > TL Motor vehicles. Aeronautics. Astronautics |
| Divisions: | Africana |
| Depositing User: | Andriamparany Edilbert RANOARIVONY |
| Date Deposited: | 20 Jul 2018 13:13 |
| Last Modified: | 20 Jul 2018 13:13 |
| URI: | http://thesisbank.jhia.ac.ke/id/eprint/7938 |
Actions (login required)
 |
View Item |