本文提供了碟形弹簧应力的精确计算，因为碟形弹簧的标称外径由其值代替。由于碟形弹簧的角半径和锥角，实际外径小于标称外径。可以计算碟形弹簧的疲劳寿命，而不是根据图表进行估算，因为图表的应用范围有限。根据循环次数与最小/最大拉应力之间的关系，建立了计算疲劳寿命的方程。

THIS PAPER PROVIDES ACCURATE CALCULATIONS OF DISC SPRING STRESSES, SINCE THE NOMINAL OUTSIDE DIAMETER OF A DISC SPRING IS REPLACED BY ITS VALUE. THE ACTUAL OUTSIDE DIAMETER IS SMALLER THAN THE NOMINAL OUTSIDE DIAMETER DUE TO THE CORNER RADIUS OF THE DISC SPRING AND THE CONE ANGLE. FATIGUE LIFE OF THE DISC SPRINGS CAN BE CALCULATED, INSTEAD OF BEING ESTIMATED FROM THE DIAGRAM, WHICH HAS A LIMITED APPLICATION. THE EQUATION TO CALCULATE FATIGUE LIFE IS DEVELOPED IN ACCORDANCE WITH THE RELATIONSHIP BETWEEN THE NUMBER OF CYCLES AND MINIMUM/MAXIMUM TENSILE STRESSES.