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arXiv 2109.09469math.APmath-phmath.MP
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具有磁效应和尖端体的压电梁的多项式稳定性

Polynomial stability of piezoelectric beams with magnetic effect and tip body

Yanning An, Wenjun Liu, Aowen Kong

摘要:

本文考虑了一个具有磁效应的一维压电梁的耗散系统,梁的自由端有一个尖端载荷,该系统被建模为一种特殊形式的双边界耗散。我们的主要目的是研究这个系统的适定性和渐近行为。通过引入定义在右边界上的两个函数,将原问题转化为新的抽象形式,利用Lumer-Philips定理证明了系统的适定性.然后,我们将原系统分为一个保守系统和一个辅助系统,并证明辅助问题产生一个紧算子。借助Wely定理,我们得到了系统不是指数稳定的.此外,我们通过使用Borichev和Tomilov的结果(Math. Ann. { \bf 347}(2010),455- 478)证明了系统的多项式稳定性。

英文摘要:

In this paper, we consider a dissipative system of one-dimensional piezoelectric beam with magnetic effect and a tip load at the free end of the beam, which is modeled as a special form of double boundary dissipation. Our main aim is to study the well-posedness and asymptotic behavior of this system. By introducing two functions defined on the right boundary, we first transform the original problem into a new abstract form, so as to show the well-posedness of the system by using Lumer-Philips theorem. We then divide the original system into a conservative system and an auxiliary system, and show that the auxiliary problem generates a compact operator. With the help of Wely's theorem, we obtain that the system is not exponentially stable. Moreover, we prove the polynomial stability of the system by using a result of Borichev and Tomilov (Math. Ann. {\bf 347} (2010), 455--478).

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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