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| Parameter Identification of Linear-angular Vibration Exciter Based on Electromechanical Analogy |
| YANG Jian-gen1,TANG Bo1,2,CHEN Wei2,YU Jin-hui1 |
1. College of Metrology and Measurement Engineering, China Jiliang University, Hangzhou, Zhejiang 310018, China
2. Ningbo Water Meter (Group) Co.,Ltd, Ningbo, Zhejiang 315033, China |
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Abstract Aiming at the problem that the dynamic parameters of the electromagnetic linear-angular vibration exciter are difficult to obtain directly, a dynamic parameter identification method based on the principle of electromechanical analogy is proposed, which can obtain the dynamic parameters of uniaxial and coupling vibration of the exciter. Firstly, the structural and working principle of the electromagnetic linear-angular vibration exciter are introduced, and the motion differential equations of uniaxial vibration and coupling vibration are established. Secondly, based on the admittance electromechanical analogy principle, the electromechanical analogy models of uniaxial vibration and coupled vibration with mechanical parameters are established. Finally, the impedance formula containing dynamic parameters is established according to the electromechanical ratio model, and the dynamic parameter identification model of the exciter is obtained by combining the additional mass method. The validity of the model is further verified by numerical simulation. The simulation results show that this method has high identification accuracy and anti-noise ability, and the identification relative errors of each parameter are within 5%.
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Received: 15 July 2022
Published: 10 October 2023
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2023, Vol. 44 
