DESIGN, ANALYSIS AND OPTIMIZATION IN I C ENGINE OF O.D. PISTON BY USING ANSYS

A piston is a component of reciprocating engines, reciprocating pumps, gas compressors and pneumatic cylinders, among other similar mechanisms. It is the moving component that is contained by a cylinder and is made gastight by piston rings. In an engine, its purpose is to transfer force from expanding gas in the cylinder to the crankshaft via a piston rod and/or connecting rod. In a pump, the function is reversed and force is transferred from the crankshaft to the piston for the purpose of compressing or ejecting the fluid in the cylinder. In the current study attempt has been made to analyses the actual working condition of the internal combustion engine piston using finite element method. Static stress analysis and thermal analysis were performed on piston using two Al alloy materials. Performance of piston made of conventional piston material i.e. cast iron is replaced by light weight material such as Al alloy 2618 and AA2124/SiC/25p composite and all two materials are optimized for weight reduction. The above analysis is carried out with the help of using SOLIDWORKS and ANSYS. In order to achieve reduction in weight material of cast iron piston is replaced with lighter Al alloy 2618 and AA2124/SiC/25p Composite respectively. Piston is optimized for these two materials for getting maximum reduction in weight without compromising with safety factor.