2015/09/20 by Pelin G. Geredeli, Geredeli, Pelin G., Justin T. Webster +1
Biochemistry, Genetics and Molecular Biology · Engineering · Mathematics · Medicine · #35A01 #35B41 #35Q74 #74K20 #Analysis of PDEs (math.AP) #Cellular Mechanics and Interactions #Effects of Vibration on Health #FOS: Mathematics #Vibration Control and Rheological Fluids #math.AP #msc:35A01 #msc:35B41 #msc:35Q74 #msc:74K20
paper · pdf · doi:10.48550/arxiv.1509.06020
openalex publication_date 2015/09/20 · arxiv created 2016/02/01 · arxiv updated 2016/02/02 · openalex created_date 2022/10/05 · openalex updated_date 2026/07/28
The dynamics of a (nonlinear) Berger plate in the absence of rotational inertia are considered with inhomogenous boundary conditions. In our analysis, we consider boundary damping in two scenarios: (i) free plate boundary conditions, or (ii) hinged-type boundary conditions. In either situation, the nonlinearity gives rise to complicating boundary terms. In the case of free boundary conditions we show that well-posedness of finite-energy solutions can be obtained via highly non- linear boundary dissipation. Additionally, we show the existence of a compact global attractor for the dynamics in the presence of hinged-type boundary dissipation (assuming a geometric condition on the entire boundary [22]). To obtain the existence of the attractor we explicitly construct the absorbing set for the dynamics by employing energy methods that: (i) exploit the structure of the Berger nonlinearity, and (ii) utilize sharp trace results for the Euler-Bernoulli plate in [24]. We provide a parallel commentary (from a mathematical point of view) to the discussion of modeling with Berger versus von Karman nonlinearities: to wit, we describe the derivation of each nonlinear dynamics and a discussion of the validity of the Berger approximation. We believe this discussion to be of broad value across engineering and applied mathematics communities.