A NEW RANDOM BOUNDARY ELEMENT FORMULATION APPLIED TO HIGH FREQUENCY PHENOMENA

✍ Scribed by M. Viktorovitch; F. Thouverez; L. Jezequel

• Book ID: 102606259
• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 344 KB
• Volume: 223
• Category: Article
• ISSN: 0022-460X
• DOI: 10.1006/jsvi.1998.2110

✦ Synopsis

The basis of a new boundary element method adapted to wide frequency range applications is proposed in this paper. The formulation employs the frequency domain dynamic fundamental solutions of the problems. Random geometrical parameters are introduced in the integral equations. These equations are then modi®ed to exhibit the products of the dierent kinematic variables. The expectations of the new equations with respect to the latter random variables are considered, and the new variables of the formulation are the dierent stochastic moments force±displacement variables. This formulation is applied to dierent structures, such as beams, rods and assembled onedimensional systems.