Abstract
In Engine, four types of journal sliding bearings of piston pin bearings(consist of one connecting rod small end bearing and two piston pin boss bearings), connection rod big end bearing and main bearing are used and these bearings are influenced each other. By comparing a simultaneous analysis and approximate analyses proposed by authors for engine bearings, practical approximate analyses are established and the considerations of balance weight are clarified. To save computation time for engine bearing analysis by finite width bearing theory, variable step's Runge-Kutta methods with inherent algorithm of engine bearings are examined. In this paper, as an another method to save computation times, easy methods with iteration are introduced. As the iteration methods, evaluation method at edge step and evaluation method at middle step are proposed. By comparing computation time, it is clarified that the time by evaluation method at middle step become less.
