title: Dynamic balancing of dual-rotor system with very little rotating speed difference.
abstract: Unbalanced vibration in dual-rotor rotating machinery was studied with numerical simulations and experiments. A new method is proposed to separate vibration signals of inner and outer rotors for a system with very little difference in rotating speeds. Magnitudes and phase values of unbalance defects can be obtained directly by sampling the vibration signal synchronized with reference signal. The balancing process is completed by the reciprocity influence coefficients of inner and outer rotors method. Results showed the advantage of such method for a dual-rotor system as compared with conventional balancing.
authors.affiliation: The Institute of Chemical Engineering Process and Machinery, Zhejiang University, Hangzhou 310027, China.
authors.forename: Jian
authors.initials: J
authors.lastname: Yang
authors.forename: Shi-zheng
authors.initials: SZ
authors.lastname: He
authors.forename: Le-qin
authors.initials: LQ
authors.lastname: Wang