Balancing of Flexible Rotors

When discussing flexible rotor balancing from an historical point of view, we can make out three classical development lines, mainly the modal theories developed by Bishop and Federn in England and Germany and the influence coefficient method developed in the USA. The classical papers on the modal balancing were published by Federn (1) in 1957 and by Bishop (2) in 1959. Papers on the influence coefficient approach were published by Goodman (3) in 1963, Rieger (4) in 1967 and Tessarzik, Badgley and Anderson (5) in 1971.