In this paper, the commercial engine piston is studied with the aim to minimize the vibration arises at the time of reciprocate motion of the piston. Hence, the damping effect is provided in the piston by using Magnesium alloys which are the lightest materials of all commonly available in the market. Initially, the simulation is performed to investigate the effect of damping thickness on the deformation and stress distribution of engine piston using finite element analysis. The master piston without damping effect is made to compare by the piston with damping thickness of 5mm, 7.5mm and 10mm. In addition, the modal analysis is performed to determine the modes of shapes and its natural frequencies. The simulation study results that the deformation and stress distribution is lower at the damping thickness of 7.5mm. So, the experiment is carried out to validate the simulation results in which the master piston and the piston with 7.5mm damping thickness are compared. The accelerometer (Sendig 911) is used to capture the waveform in order to calculate the vibration. The results are clearly indicated that the damping effect is effectively used to reduce the vibration and noise in the engine piston.
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