Analysis of Frictional Power Loss Due to the Effects of Elastic Deformation in the Piston Skirt Profile

탄성변형을 고려한 피스톤 스커트의 마찰 손실 해석

The secondary motion of piston occurs due to the transient forces and moments in the clearances between piston skirt and cylinder liner The motions are very related to the skirt profile and the magnitude of piston-pin offset. Above all, the elastic deformation is another major effect on the piston secondary motion that has not been considered in the previous researches. In this work, the effects of elastic deformation of the piston skirt on the secondary piston motion are studied for the frictional power loss by using commercial softares, PISDYN and ANSYS.