Dynamic analysis of submerged fluid-filled pipelines subjected to a point pressure load

This paper analyses the wave scattering generated by point pressure loads in the vicinity of infinite fluid-filled circular pipelines submerged in a homogeneous fluid medium. The pipeline has a constant cross-section and is modelled as a homogeneous elastic material. The three-dimensional (3-D) response is formulated in the frequency domain, and is obtained as a discrete summation of the 2-D solutions found for different axial wavenumbers. Time solutions are computed by means of inverse Fourier transforms. Complex frequencies are used to avoid aliasing phenomena.http://www.sciencedirect.com/science/article/B6WM3-49N97KG-4/1/2c5236c670c9987fbd89d00f332bc2e