Acta mathematica scientia,Series A ›› 2023, Vol. 43 ›› Issue (2): 355-376.

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Stability of Piezoelectric Beams with Magnetic Effects of Fractional Derivative Type and with/without Thermal Effects

An Yanning1,Liu Wenjun1,2,3,*(),Kong Aowen1   

  1. 1School of Mathematics and Statistics, Nanjing University of Information Science and Technology, Nanjing 210044
    2Center for Applied Mathematics of Jiangsu Province, Nanjing University of Information Science and Technology, Nanjing 210044
    3Jiangsu International Joint Laboratory on System Modeling and Data Analysis, Nanjing University of Information Science and Technology, Nanjing 210044
  • Received:2021-09-29 Revised:2022-10-17 Online:2023-04-26 Published:2023-04-17
  • Supported by:
    National Natural Science Foundation of China(12271261);Key Research and Development Program of Jiangsu Province (Social Development)(BE2019725);Qing Lan Project of Jiangsu Province and the Postgraduate Research and Practice Innovation Program of Jiangsu Province(KYCX22_1125)

Abstract:

In this paper, we consider the well-posedness and asymptotic behavior of a one-dimensional piezoelectric beam system with control boundary conditions of fractional derivative type, which represent magnetic effects on the system. By introducing two new matrixs to deal with control boundary conditions of fractional derivative type, we obtain a new equivalent system, so as to show the well-posedness of the system by using Lumer-Philips theorem. We then prove the lack of exponential stability by a spectral analysis, and obtain the polynomial stability of the system without thermal effects by using a result of Borichev and Tomilov (Math. Ann. 347 (2010), 455-478). To find a more stable system, we then consider the stability of the above system with thermal effects described by Fourier's law, and achieve the exponential stability for the system by using the perturbed functional method.

Key words: Piezoelectric beams, Asymptotic behavior, Fractional derivative, Semigroup method

CLC Number: 

  • O175.21
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