Application of Model Based Diagnosis in Two-Span Rotor System with Two Unbalance Faults
The model based fault identification method was used to identify the two unbalance faults in two-span rotor system. The unbalance location and magnitude were identified using least squares fitting approach by the system’s transient residual vibration. The all-phasic FFT technique was used to analyze the original phases of vibration signals. The unbalance location and magnitude of the rotor system can be detected by using only a few sensors. Numerical simulations and experiment on rotor system with two unbalance faults were used, which proved the efficiency of the method.
Jianmin Zeng, Zhengyi Jiang, Taosen Li, Daoguo Yang and Yun-Hae Kim
Y. G. Luo et al., "Application of Model Based Diagnosis in Two-Span Rotor System with Two Unbalance Faults", Advanced Materials Research, Vols. 199-200, pp. 780-783, 2011