DESIGN AND MANUFACTURING MAGNETIC DAMPER AND ACTIVE CONTROL OF BEAM VIBRATIONS USING EDDY CURRENT

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MADDAH A.; HOJJAT Y.

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Journal: Modares Mechanical Engineering Year:2011 | Volume:11 | Issue:2 Page(s): 57-66

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Title

DESIGN AND MANUFACTURING MAGNETIC DAMPER AND ACTIVE CONTROL OF BEAM VIBRATIONS USING EDDY CURRENT

Author(s)

MADDAH A. | HOJJAT Y. | Issue Writer Certificate

Keywords

EDDY CURRENT DAMPERSQ2

ACTIVE DAMPERSQ2

SEMI-ACTIVE DAMPERSQ2

EDDY CURRENT IMPACTQ2

NUMERICAL SIMULATIONQ2

Abstract

There is different methods to damp the vibration. However, the numbers of contactless methods are limited. EDDY CURRENT DAMPERS are of these procedures. Eddy current is produced in a nonmagnetic conductive material when it is subjected to a time varying magnetic field. In this research, active and semi-active types of EDDY CURRENT DAMPERS are manufactured and input impulse responses for different damping modes are determined experimentally and numerically. The Aluminium cantilevered beam is stimulated by an EDDY CURRENT IMPACT. The stiffness and damping coefficient are derived by a reduced logarithmic method according to the time response. The response to impulse is simulated by Simulink of MATLAB and the outcomes are compared with experimental results. Both results show significant decrease in the peak of frequency responses. The results of modal semi-active experiments show the effective suppress of vibration by more than 10 dB. Experiments on the active damper demonstrate a remarkable decrease in the first and second peak of frequency spectrum and increase in bandwidth over previously used eddy current methods.

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APA: Copy

MADDAH, A., & HOJJAT, Y.. (2011). DESIGN AND MANUFACTURING MAGNETIC DAMPER AND ACTIVE CONTROL OF BEAM VIBRATIONS USING EDDY CURRENT. MODARES MECHANICAL ENGINEERING, 11(2), 57-66. SID. https://sid.ir/paper/178076/en

Vancouver: Copy

MADDAH A., HOJJAT Y.. DESIGN AND MANUFACTURING MAGNETIC DAMPER AND ACTIVE CONTROL OF BEAM VIBRATIONS USING EDDY CURRENT. MODARES MECHANICAL ENGINEERING[Internet]. 2011;11(2):57-66. Available from: https://sid.ir/paper/178076/en

IEEE: Copy

A. MADDAH, and Y. HOJJAT, “DESIGN AND MANUFACTURING MAGNETIC DAMPER AND ACTIVE CONTROL OF BEAM VIBRATIONS USING EDDY CURRENT,” MODARES MECHANICAL ENGINEERING, vol. 11, no. 2, pp. 57–66, 2011, [Online]. Available: https://sid.ir/paper/178076/en

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