Patent ID: 11898498
Assignee: ROLLS-ROYCE DEUTSCHLAND LTD & CO KG
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B | IPC F

Claim 0:
1. A method for manufacturing a gearbox, the method comprising:
providing a predefined interval around an integer Ri;
providing a gearbox setup;
determining a speed ratio R of at least two components of the gearbox setup;
comparing the speed ratio R with the predefined interval around the integer Ri, where Ri=2, 3, 4, 5 or 6; and
manufacturing a gearbox in accordance with the gearbox setup in dependence on the comparison as follows:
comparing the speed ratio R with the predefined interval around the integer Ri comprises determining whether or not the speed ratio R is within the predefined interval around the integer Ri; and
manufacturing the gearbox in accordance with the gearbox setup only when the speed ratio R is not within:
the predefined interval around the integer Ri;
the predefined interval around the integer Ri−1;
the predefined interval around the integer Ri+1.