Research on prediction of radiated acoustic field for submerged double ring-stiffened cylindrical shell using underdetermined separation
GUAN Shan-shan;WU Shu-you;TAO Xiang-fan;CHEN Mei-xia;CAO Wei-wu;Wuhan Second Ship Design and Research Institute;Hua Zhong University of Science and Technology;
The prediction of radiated acoustic pressure field for double ring-stiffened cylindrical shell under water is of great importance to noise monitoring and control. Based on the vibration modes of a double ring-stiffened cylindrical shell in vacuum, an underdetermined separation method which can realize prediction of radiated acoustic pressure field of the submerged double ring-stiffened cylindrical shell with a few measurement points is proposed. The validity of the prediction results are analyzed through numerical and experiments methods. It demonstrates that the prediction precision is reliable. And the number of measuring points needed is acceptable. Consequently, this method has much better applicability.
【CateGory Index】： U661.44