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Design and control of a new linear magnetic actuator for squeeze film damper

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Abstract

A new model of a linear magnetic actuator (LMA) that can be applied to the controllable squeeze film damper (CSFD) was proposed, designed, and fabricated. To validate the operation of the proposed actuator, a mathematical model of the proposed LMA was derived through experiments. From the experimental results it was verified that the electromagnetic force depends upon the position of the mover (the outer damper ring of the CSFD) and the applied current. Also, the electromagnetic force varies symmetrically with the position of the mover within the working region. A self-tuning fuzzy PID controller was applied to control the position of the novel LMA. Further, the proposed LMA was assembled in the squeeze film damper (SFD), where the clearance can be controlled by LMA. To investigate the damping effect of the damper under various clearances by controlling the LMA, experiments on the rotor test-rig were conducted. From the experimental results, the proposed device, which is composed of SFD and LMA, was verified to be very effective for attenuation of the vibration of the rotor system.

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Authors and Affiliations

  1. School of Mechanical and Automotive Engineering, University of Ulsan, San 29, Muger 2dong, Nam-gu, Ulsan, 680-764, Korea

    Truong Quoc Than & Kyoung Kwan Ahn

Authors
  1. Truong Quoc Than
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  2. Kyoung Kwan Ahn
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Correspondence to Kyoung Kwan Ahn.

Additional information

This paper was recommended for publication in revised form by Associate Editor Dong Hwan Kim

Kyoung Kwan Ahn received the B.S. degree in the department of Mechanical Engineering from Seoul National University in 1990, the M. Sc. degree in Mechanical Engineering from Korea Advanced Institute of Science and Technology (KAIST) in 1992 and the Ph.D. degree with the title “A study on the automation of out-door tasks using 2 link electro-hydraulic manipulator” from Tokyo Institute of Technology in 1999. He is currently a Professor in the School of Mechanical and Automotive Engineering, University of Ulsan, Ulsan, Korea. His research interests are design and control of smart actuator using smart material, fluid power control and active damping control. He is a Member of IEEE, ASME, SICE, RSJ, JSME, KSME, KSPE, KSAE, KFPS, and JFPS.

Truong Quoc Thanh received the B.S degree in the department of Mechanical Engineering from Hochiminh City University of Technology in 1998, and the M.Sc. degree with title “Dynamic stiffness method in calculation vibration of structure” from the master program of mechanics under Inter-University Cooperation Program between Liege University (Belgium) and HCMUT (Vietnam) in 2000. From 2000 to 2004, he worked as a lecturer in the mechanical department of Hochiminh City University of Technology. His teaching subjects are relevant in Advanced Manufacturing Methods, Measuring Technique and Manufacturing Technique. He is currently a Ph.D. candidate at the University of Ulsan. His research interests focus on designing and manufacturing of new actuators, vibration control theory and application theories.

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Than, T.Q., Ahn, K.K. Design and control of a new linear magnetic actuator for squeeze film damper. J Mech Sci Technol 23, 344–357 (2009). https://doi.org/10.1007/s12206-008-1116-z

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  • DOI: https://doi.org/10.1007/s12206-008-1116-z

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