A novel hybrid excitation eddy current damper for vibration suppression

A novel eddy current damper with hybrid excitation is presented in this paper. The eddy current damper contains two hybrid excitation components and a moving conductor plate. The hybrid excitation component is consisted of primary coil, the primary iron core and permanent magnet. The conductor plate is sandwiched between two excitation components. Analyses of the proposed damper are conducted with analytical method and FEA respectively. The analysis results validate the feasibility of the design and the correctness of the developed analytical model. The optimization method of the damping effect is studied based on numerical computation with the employment of the Taguchi optimization method. The simulation results stated that the damping force was increased by 32.16% with the proposed method.

[1]  Cheng-Tsung Liu,et al.  Optimal Design of a Permanent Magnet Linear Synchronous Motor With Low Cogging Force , 2012, IEEE Transactions on Magnetics.

[2]  Rituraj Jalan,et al.  EDDY CURRENT BRAKING EMBEDDED SYSTEM , 2012 .

[3]  David C. White,et al.  Traction and Normal Forces in the Linear Induction Motor , 1970 .

[4]  Wenjie Chen,et al.  A passive eddy current damper for vibration suppression of a force sensor , 2013 .

[5]  J. Swinburne.  Electromagnetic Theory , 1894, Nature.

[6]  Yu Wang,et al.  Hybrid Excitation Topologies and Control Strategies of Stator Permanent Magnet Machines for DC Power System , 2012, IEEE Transactions on Industrial Electronics.

[7]  Hsien Hua Lee,et al.  Experimental study of controllable MR-TLCD applied to the mitigation of structure vibration , 2015 .

[8]  Jae-Sung Bae,et al.  Vibration suppression of a cantilever beam using magnetically tuned-mass-damper , 2012 .

[9]  Jaehwan Kim,et al.  A review of piezoelectric energy harvesting based on vibration , 2011 .

[10]  Mason A. Peck,et al.  Characterization of Eddy Currents for Space Actuation , 2012 .

[11]  R.K. Srivastava,et al.  An Alternative Approach for Calculation of Braking Force of an Eddy-Current Brake , 2009, IEEE Transactions on Magnetics.

[12]  Chuang Liu,et al.  Characteristics and experimental study on a novel Tangential/Radial Hybrid Excitation Synchronous Machine , 2010, The 2nd International Symposium on Power Electronics for Distributed Generation Systems.