✍ Scribed by M. VIKTOROVITCH; F. THOUVEREZ; L. JEZEQUEL
No coin nor oath required. For personal study only.
The fundamentals of a new boundary element formulation applied to the study of structural dynamics on a wide frequency range is proposed in this paper. Random geometrical parameters are introduced to the integral representations in order to model the increasing sensitivity of the harmonic vibrational responses to any parameter perturbation when the frequency increases. It is shown that the signi"cant unknowns of the formulation are the expectations of the square boundary kinematic unknowns. Indeed, these variables are able to describe accurately the responses of the structures in the low-frequency "eld and deliver a smooth response in the middle-and high-frequency "eld, corresponding to the global trend of the structural dynamic response in this frequency domain. The formulation is established for isolated and assembled one-, two-and three-dimensional structures. Numerical applications illustrate the e!ectiveness of the method.
2001 Academic press
📜 SIMILAR VOLUMES