Volume 30 Issue 2
Feb.  2015
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XUE Guang-ming, HE Zhong-bo, LI Dong-wei, LI Yu-long, YANG Zhao-shu. Response model of giant magnetostrictive actuator based on elastic damping pedestal[J]. Journal of Aerospace Power, 2015, 30(2): 438-445. doi: 10.13224/j.cnki.jasp.2015.02.023
Citation: XUE Guang-ming, HE Zhong-bo, LI Dong-wei, LI Yu-long, YANG Zhao-shu. Response model of giant magnetostrictive actuator based on elastic damping pedestal[J]. Journal of Aerospace Power, 2015, 30(2): 438-445. doi: 10.13224/j.cnki.jasp.2015.02.023

Response model of giant magnetostrictive actuator based on elastic damping pedestal

doi: 10.13224/j.cnki.jasp.2015.02.023
  • Received Date: 2013-09-04
  • Publish Date: 2015-02-28
  • Giant magnetostrictive actuator was placed on elastic damping pedestal to compensate the uncontrollable deformation of giant magnetostrictive material caused by environment, and steady-state responses of the output and base were calculated. Vibration differential equations were established when the system was simplified into a linear system with two degrees of freedom. Natural angular frequencies of the system were calculated, and amplitude-frequency characteristic was analyzed by harmonic excitation input. The experimental data of the output and base displacements were achieved by input of harmonic current with different amplitudes and frequencies. Relative errors and absolute errors between the model and experimental results were calculated and compared. The calculation shows that relative errors between the model and experimental results are not more than 9%, and the absolute errors are not more than 0.01mm, verifying the accuracy of the model.

     

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