Uniform stability in structural acoustic models with flexible curved walls

[摘要] The aim of this paper is twofold. First, we develop an explicit extension of the Kirchhoff model for thin shells, based on the model developed by Michel Delfour and Jean-Paul Zolesio. This model relies heavily on the oriented distance function which describes the geometry. Once this model is established, we investigate the uniform stability of a structural acoustic model with structural damping. The result no longer requires that the active wall be a plate. It can be virtually any shell, provided that the shell is thin enough to accommodate the curvatures. (C) 2002 Elsevier Science (USA). All rights reserved.

[发布日期] 2002-11-20

[关键词] intrinsic shell model;Kirchhoff-Love hypothesis;structural acoustic system;coupled partial differential equations;uniform stability