736 偏心二重円筒容器内液面の非線形振動(定常流れのない場での非線形振動,OS-5:流体関連振動のメカニズムと計測制御(2))

概要

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The nonlinear liquid motion in a partially filled cylindrical tank with an eccentric core barrel is investigated.The nonlinearity of the liquid surface oscillation is considered in the response analysis of the sloshing motion. Basic equations are derived by employing the variational principle. The nonlinear ordinary differential equations governing the liquid surface oscillation are then derived by applying Galerkin's method to the basic equations. The effects of the eccentricity of core barrel on liquid surface oscillationare discussed. The time histories of the liquid surface displacement are calculated to the harmonic pitching excitations. An experiment was conducted using a model tank. A good agreement was found between the theoretical and experimental results. It is shown that the nonlinear analysis is important for estimating the sloshing responses.
社団法人日本機械学会の論文
2004-09-27