Staggered Solution Procedures for Doubly Asymptotic Fluid-Structure Interaction Analysis.

Abstract
This report examines direct time integration techniques for the transient response analysis of fluid-structure interaction problems treated with the Doubly Asymptotic Approximation. Efficient solution of the equations of motion is achieved by a modular computer implementation in which separate fluid and structure analyzers are interfaced through extrapolation of the coupling terms. Because conventional realization of this technique is handicapped by severe time-increment limitations, a versatile formulation is developed that circumvents such limitations, achieving unconditional stability. (Author)

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