Journal Article

Stability of Wave Networks on Elastic and Viscoelastic Media

Xu Genqi, Li, Min

2021

Overview

In this paper, we study the component configuration issue of the line-shaped wave networks which is made of two viscoelastic components and an elastic component and the viscoelastic parts produce the infinite memory and damping and distributed delay. The structural memory of viscoelastic component results in energy dissipative and the damping memory arouses the instability, and the elastic component is energy conservation, such a hybrid effects lead to complex dynamic behaviour of network. Our purpose of the present paper is to find out stability condition of such a network, in particular, the configuration condition of the wave network under which the network is exponentially stable. At first, using a resolvent family approach, we prove the well-posed of the wave network systems under suitable assumptions on the memory kernel g(s), the damping coefficient μ1 and delay distributed kernel μ2(s). Next, using the Lyapunov function method, we seek for a structural condition of the wave networks under which the wave networks are exponentially stable. By constructing new functions we obtain the sufficient conditions for the exponential stability of the wave networks, the structural conditions are given as inequalities.

• Publisher: Springer Nature B.V
• Subject: Configurations / Damping / Distributed memory / Kernels / Liapunov functions / Mathematics / Networks / Viscoelasticity