Absorbing Boundaries for the Time-Domain Analysis of Dam-Reservoir-Foundation Systems (Institut für Baustatik und Konstruktion) Glauco Feltrin - kelloggchurch.org

Absorbing Boundaries for the Time-Domain Analysis of Dam-Reservoir-Foundation Systems Institut für Baustatik und Konstruktion 232 [Feltrin, Glauco] on. FREE shipping on qualifying offers. Absorbing Boundaries for the Time-Domain Analysis of Dam-Reservoir-Foundation Systems Institut für Baustatik und Konstruktion 232. The new absorbing boundary conditions are very accurate so that they are virtually equivalent to dynarnic stiffness matrices obtained by a rigorous solution of a far field. This allows to reduce the size of near fields dramatically and permits an accurate and numerically efficient nonlinear time­ domain analysis.

model has to be formulated in the time domain complicating the analysis even more. In this report, which is based on a doctoral thesis, a new method is presented that permits to develop absorbing boundary conditions for the nonlinear time-domain analysis of concrete grav-ity dams. The procedure can be adopted for both linear and nonlinear time-domain analyses of dam-reservoir systems. Modal analysis can be incorporated in the linear analysis to further reduce the. The Analysis of dam-reservoir-foundation coupled system is a complicated problem due to mutual interaction between reservoir water, rock foundation and concrete dam.

To explain the object of the study, we refer to Fig. 1 showing a dam-reservoir-foundation system, which is under the influence of a seismic environment. In the figure, the interface with foundation is designated by L and, to make the solution region finite, the reservoir is divided into near and far fields through the use of a vertical truncation surface V. Figure 1: Geometry of the dam-reservoir-foundation system: 1 dam, 2 reservoir, 3 foundation soil, US dam face A-B, US reservoir boundary C-D and foundation boundary E-F-G-C. Figure 2: The ramp acceleration load used by Kuc¸¨ ukarslan et al. [16]¨ Figure 3: Geometry of the dam-reservoir system.

problems. However, for a nonlinear analysis of the dam-reservoir system, it is necessary to develop a direct time domain analysis. Zienkiewicz and Bettess 3 as well as Kuc¨¸ukarslan¨ et al. 4 studied fluid-structure interaction in the time domain by imposing the Sommerfeld. seismic analysis of concrete dams. The bases of the course are founded on the understanding of the principles, use of physical concepts and the application of a number of mathematical strategies to the case of dam-reservoir-foundation system. In principle, the course covers. model with massless foundation. Fenves and Chopra [8] studied the dam-reservoir-foundation rock interaction in a frequency domain linear analysis. In the work presented by Gaun et. al [9], an efficient numerical procedure has been described to study the dynamic response of a reservoir-dam-foundation system directly in the time domain.

Apr 27, 2012 · Time domain dynamic analysis of inclined dam-reservoir-foundation interaction was conducted using finite difference method FDM. The Timoshenko beam theory and the Euler-Bernoulli beam theory were implemented to draw out governing equation of beam. The interactions between the dam and the soil were modeled by using a translational spring and a rotational spring.

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