Dynamic response analysis of tube array in calandria to rotational vault motion

An efficient procedure has been presented for dynamic response analysis of horizontal tube array in partially filled calandria including hydrodynamic interaction effects (S.P. Joshi, A. Goyal, Dynamic response analysis of tub e array in partially filled calandria, Earthquake Eng. Struct. Dyn. 28 (199 9) 287-309). The procedure is general enough to consider transfer of energy between the fluid-coupled tubes and effects of moderator sloshing on the m agnitude and the distribution of hydrodynamic forces. It can also simulate the added damping effects due to hydrodynamic interaction. In this paper, t he procedure, originally developed for translational excitations of the cal andria vault, is extended to include the rotational excitations of the vaul t. The procedure uses semi-analytical approach for the evaluation of hydrod ynamic terms that leads to considerable economy in the computation. (C) 200 1 Elsevier Science B.V. All rights reserved.