The vibroacoustical characteristics of an annular flow duct system, which consists of two infinite concentric cylindrical elastic thin steel shells (hereafter referred to as a double shell simply) coupled by the entra...The vibroacoustical characteristics of an annular flow duct system, which consists of two infinite concentric cylindrical elastic thin steel shells (hereafter referred to as a double shell simply) coupled by the entrained axial uniform water flow, is investigated. By using a fully coupled model between fluid and shells, the dispersion behaviour is analyzed for the system, vibrating in the n = 0 and n = 1 circumferential modes. The impact of the flow on the dispersion curves is also discussed for the system.展开更多
文摘The vibroacoustical characteristics of an annular flow duct system, which consists of two infinite concentric cylindrical elastic thin steel shells (hereafter referred to as a double shell simply) coupled by the entrained axial uniform water flow, is investigated. By using a fully coupled model between fluid and shells, the dispersion behaviour is analyzed for the system, vibrating in the n = 0 and n = 1 circumferential modes. The impact of the flow on the dispersion curves is also discussed for the system.
