The Open Mechanical Engineering Journal

2011, 5 : 186-193
Published online 2011 December 19. DOI: 10.2174/1874155X01105010186
Publisher ID: TOMEJ-5-186

Research on Optimization for the Piston Pin and the Piston Pin Boss

Yanxia Wang and Hui Gao
Shandong University of Technology, Zibo 255049, Shandong, China.

ABSTRACT

Due to the fatigue failure and the fracture injury occurs under the alternative mechanical loads, the optimal design of the piston pin and the piston pin boss is presented depending on the FEA static analysis. The optimization is carried out using the Genetic Algorithm (GA), and the piston noncircular pin hole is used to further reduce the stress concentration on the upper end of the piston pin seat.