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engineering mechanics
International Journal of Advanced Engineering Research and Studies

E-ISSN2249–8974

Research Paper

DESIGN AND ANALYSIS OF CRANKSHAFT FOR SINGLE
CYLINDER 4-STROKE DEISEL ENGINE
Jaimin Brahmbhatt1, Prof. Abhishek choubey2

1

Address for Correspondence

P G student, 2 Assistant professor, Department of Mechanical Engineering, Oriental Institute Of science and technology, Bhopal, India
ABSTRACT
Crankshaft is one of the critical components for the effective and precise working of the internal combustion engine. In this paper a dynamic simulation is conducted on a crankshaft from a single cylinder 4- stroke diesel engine. A three-dimension model of diesel engine crankshaft is created using SOLID WORKS software. Finite element analysis (FEA) is performed to obtain the variation of stress magnitude at critical locations of crankshaft. Simulation inputs are taken from the engine specification chart. The dynamic analysis is done using FEA Software ANSYS which resulted in the load spectrum applied to crank pin bearing. This load is applied to the FE model in ANSYS, and boundary conditions are applied according to the engine mounting conditions. The analysis is done for finding critical location in crankshaft. Stress variation over the engine cycle and the effect of torsion and bending load in the analysis are investigated. Von-mises stress is calculated using theoretically and FEA software ANSYS. The relationship between the frequency and the vibration modal is explained by the modal and harmonic analysis of crankshaft using FEA software ANSYS.
KEYWORDS – Diesel engine; Crank shaft in Ansys; finite element analysis; stress analysis;

1. INTRODUCTION
Crankshaft is one of the most important moving parts in internal combustion engine. Crankshaft is a large component with a complex geometry in the engine, which converts the reciprocating displacement of the piston into a rotary motion. This study was conducted on a single cylinder 4-

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