Abstract

Crankshaft is the main component part of an engine. The main aim of this thesis is to select the crankshaft materials with minimum Von Misses stress and displacement. That is considered material selection, theory and calculation of crankshaft for static load. The function of the crankshaft is to convert the reciprocation motion of the piston to rotary motion of the flywheel. If the crankshaft is suddenly deformable, the engine will not work. The type of the crankshaft is used for four cylinder, four stroke 2C Diesel Engine Light Truck , which is fully supported, multi throws, centre crankshaft. The compression ratio of this engine is 22.5. This thesis is mainly compared the Von Misses stresses and displacement of three different materials. As the crankshaft is subjected to complex bending, shear and twisting loads, it needs to be well designed quality material to withstand the high stresses. The total length of the crankshaft is 460 mm. The crankpin diameter is 50 mm and the main diameter is 56 mm. The crankpin length is 28 mm and the main journal length is 29 mm. In this thesis, crankshaft design is modelled and compared the simulation results with acting static load on the crankshaft by using AutoDesk Inventor software. In AutoDesk Inventor software, it is needed to apply boundary condition on the existing crankshaft for stress analysis report. The gas force acting on the middle of the crankpins is 44198.512 N. The combustion pressure was used to calculate the gas force acting on the crankshaft and modelled the geometry of crankshaft. Finally, Carbon steel will be selected because it has minimum Von Misses stress and displacement. Ei Cho Cho Theik | Khaing Zar Nyunt | Hnin Yu Yu Kyaw "Material Selection of Crankshaft for 2C Diesel Engine" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-3 | Issue-4 , June 2019, URL: https://www.ijtsrd.com/papers/ijtsrd25171.pdf Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/25171/material-selection-of-crankshaft-for-2c-diesel-engine/ei-cho-cho-theik

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