公开(公告)号：EP4269751A1

公开(公告)日：2023-11-01

申请号：EP23170157.4

申请日：2023-04-26

申请人： PRATT & WHITNEY CANADA CORP.

发明人： BALIKE, Krishna Prasad ,  WONG, Edwin ,  FUDGE, Daniel ,  THERATIL, Ignatius ,  STONE, Paul ,  MASON, Charles ,  ANAND, Karan ,  DORAN, Pascal

IPC分类号： F01D5/10 ,  F01D5/16 ,  F01D5/34 ,  F04D29/32

摘要： A method of manufacturing a mistuned rotor includes: obtaining a rotor 12 having a hub 22 and a plurality of blades 24 protruding from the hub 22, the plurality of blades 24 including first blades 28 and second blades 30 disposed in alternation around a central axis 11 of the rotor 12, natural vibration frequencies of the first blades 28 different from natural vibration frequencies of the second blades 30; determining that a difference between a first natural vibration frequency of a first blade 28 of the first blades and a second natural vibration frequency of a second blade 30 of the second blades is below a threshold L; and modifying a shape of the first blade 28 until the difference between the first natural vibration frequency and the second natural vibration frequency is at or above the threshold L.