Excentric pressure shaft's stress analysis, lifetime and reliability calculations

In this study, the forces that comes upon the shaft of excentric pressure machines that frequently used in industry were examined, analysed and calculated how effect the lifetime of excentric shaft according to various working conditions. As known, pressure machines are exposed to challange at different thickness, hole diameters and different type of sheet metals. Cumulative damage will be occured on excentric shaft at every cutting position. By taking consideration of tensions and effect periods, shaft lifetime was tried to calculate according to statistical normal dispersion. After, equivalence tensions were calculated in respect of statistic knowledge and this values were calculated which level of reliability by using normal dispersion function. With this study, lifetime of a shaft which is produced as St 60, common production steel can be found with Palmgren-Miner, Corten-Dolan and Marin methods. Key Words : Excentric shaft, Lifetime, Reliability