Non-whole beat correlation method for the identification of an unbalance response of a dual-rotor system with a slight rotating speed difference

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• 作者：Z.X. Zhang ; L.Z. Wang ; Z.J. Jin ; Q. Zhang ; X.L. Li
• 关键词：Dual-rotor system ; Slight speed difference ; Whole-machine balancing ; Correlation method ; Non-whole beat
• 刊名：Mechanical Systems and Signal Processing
• 出版年：2013
• 出版时间：August-September, 2013
• 年：2013
• 卷：39
• 期：1-2
• 页码：452-460
• 全文大小：1269 K

文摘

The efficient identification of the unbalanced responses in the inner and outer rotors from the beat vibration is the key step in the dynamic balancing of a dual-rotor system with a slight rotating speed difference. This paper proposes a non-whole beat correlation method to identify the unbalance responses whose integral time is shorter than the whole beat correlation method. The principle, algorithm and parameter selection of the proposed method is emphatically demonstrated in this paper. From the numerical simulation and balancing experiment conducted on horizontal decanter centrifuge, conclusions can be drawn that the proposed approach is feasible and practicable. This method makes important sense in developing the field balancing equipment based on portable Single Chip Microcomputer (SCMC) with low expense.