Logarithmic decay rate for a structural-acoustic interaction model with supercritical source and nonlinear damping
Haiyan Li , Victor R. Cabanillas , Donal O’Regan
Electronic Research Archive ›› 2026, Vol. 34 ›› Issue (5) : 3573 -3592.
In this paper, we study a structural acoustics model with supercritical source and nonlinear damping. The model consists of a wave equation defined on a bounded domain which is strongly coupled with a Berger plate equation acting on the elastic wall. The aim of the paper is to remove the strong condition $u \in L^{\infty}\left(\mathbb{R}^{+} ; L^{\frac{3}{2}}(\Omega)\right) \text { for } m_{1}>5$ in the work [1] to obtain a weaker energy decay, and give a logarithmic decay rate under a weak assumption on the initial data.
structural acoustics model / energy decay / supercritical sources / nonlinear damping
| [1] |
|
| [2] |
|
| [3] |
|
| [4] |
|
| [5] |
|
| [6] |
|
| [7] |
|
| [8] |
|
| [9] |
|
| [10] |
|
| [11] |
|
| [12] |
|
| [13] |
|
| [14] |
|
| [15] |
|
| [16] |
|
| [17] |
|
| [18] |
|
| [19] |
|
| [20] |
|
| [21] |
|
| [22] |
|
| [23] |
|
| [24] |
|
| [25] |
|
| [26] |
|
| [27] |
|
| [28] |
|
| [29] |
|
| [30] |
|
| [31] |
|
| [32] |
|
| [33] |
|
| [34] |
|
/
| 〈 |
|
〉 |