Feedback control of the acoustic pressure in ultrasonic wave propagation
Feedback control of the acoustic pressure in ultrasonic wave propagation
复制标题
超声波传播中声压的反馈控制
DOI:
10.1080/02331934.2018.1504051
复制
发表时间:
2018
期刊:
影响因子:
2.2
通讯作者:
Lasiecka, Irena
中科院分区:
文献类型:
--
作者:
Bucci, Francesca;Lasiecka, Irena
The Jordan–Moore–Gibson–Thompson equation is a prominent example of a Partial Differential Equation model which describes the acoustic velocity potential in ultrasound wave propagation, and where the paradox of infinite speed of propagation of thermal signals is eliminated; the use of the constitutive Cattaneo law for the heat flux, in place of the Fourier law, accounts for its being of third order in time. A great deal of attention has been recently devoted to its linearization–referred to in the literature as the Moore–Gibson–Thompson equation–whose analysis poses already several questions and mathematical challenges. In this work, we consider and solve a quadratic control problem associated with the linear equation, formulated consistently with the goal of keeping the acoustic pressure close to a reference pressure during ultrasound excitation, as required in medical and industrial applications. While optimal control problems with smooth controls have been considered in the recent literature, we aim at relying on controls which are just L 2 in time; this leads to a singular control problem and to non-standard Riccati equations.
登录
查看更多内容
DOI:
--
发表时间:
1992
期刊:
影响因子:
--
作者:
F. Bucci
通讯作者:
F. Bucci
影响因子:
2
作者:
P. Acquistapace;F. Bucci;I. Lasiecka
通讯作者:
I. Lasiecka
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
I. Christov
通讯作者:
I. Christov
影响因子:
1.8
作者:
Dell'Oro, Filippo;Pata, Vittorino
通讯作者:
Pata, Vittorino
DOI:
10.1016/j.aml.2016.07.008
发表时间:
2017
期刊:
Appl. Math. Lett.
影响因子:
--
作者:
B. Kaltenbacher
通讯作者:
B. Kaltenbacher