DYNAMIC ANALYSIS OF PISTON, CONNECTING ROD, AND CRANK OF AN I.C.ENGINE USING A MATHEMATICAL APPROACH
Keywords:
Dynamic analysis, Piston Secondary Motion, Piston tilt, Lateral piston movementAbstract
The dynamic motion analysis is a complex and tedious work, which requires a complete model. The paper presents a mathematical model developed from the basics by considering the forces acting on the crank, connecting rod and piston, for both primary and secondary motions. The developed model was used to study the variation of the forces at crank pin joint, which is the base for designing a crank. The secondary motion of the piston is modeled by considering the different forces acting on the piston. In order to impose the effect of hydrodynamic lubrication the 1D Reynolds equation is solved for fully flooded lubrication condition. The variation of forces should be known before the design of any component, to know this analytical approach is a complex, time consuming but inexpensive tool. The model developed will help to study the dynamic performance of the engine before the manufacture.
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