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Model of piston secondary motion and elastohydrodynamic skirt lubrication
Date
1993-01-01
Author
Dursunkaya, Zafer
Ganapathy, Venkatesh
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A model of elastohydrodynamic lubrication of reciprocating engine piston skirts was developed in the context of a simulation of piston secondary motions. The piston secondary dynamics, skirt lubrication and skirt elastic deformation problems are simultaneously solved in the calculation. The model can represent both conventional and two-piece articulated pistons and also includes a treatment of wrist pin lubrication. Skirt deformations are calculated using a skirt compliance matrix derived from a finite element model of the piston. The model exercised to calculate piston secondary motions and skirt deformations for a heavy-duty truck diesel piston at various operating conditions. Results show that peak skirt radial deformations can exceed the skirt-liner radial clearance and depend strongly on load. Articulated piston skirt deformations were shown to be significantly larger than those in conventional piston skirts.
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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0027153672&origin=inward
https://hdl.handle.net/11511/78236
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Z. Dursunkaya and V. Ganapathy, “Model of piston secondary motion and elastohydrodynamic skirt lubrication,” 1993, Accessed: 00, 2021. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0027153672&origin=inward.
