Research Methods and Applications of Gear Manufacturing Process Optimization

Table 12

Calculation example of the up and down method.

Torque (Nm)	×=Invalid    ○=Infinite life
1000	×		×						×				×
960		○		×				○		×		○		×
920					×		○				○				×
880						○										○
Test number	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16
Median torque at 50% survival rate (Nm)									905.71