雙層圓柱殼結(jié)構(gòu)減振設(shè)計(jì)及模型試驗(yàn)研究
[Abstract]:In order to reduce the vibration and radiation noise of the bilayer cylindrical shell, the vibration absorption design and model test were carried out. Based on the theory of ring rib reinforcement and modal vibration control, a non-uniform impedance enhanced ring rib structure is proposed. In order to reduce the transmission of vibration wave between two layers of shells, the vibration resistive mass and viscoelastic interlayer are introduced into the design of real ribbed plate structure. The wave theory is used to analyze the composite wave resistance characteristics. A double-layer shell model was designed by using non-uniform impedance reinforced ring rib and composite wave resistant rib plate, and the experiments of suspended vibration at both ends of air and underwater suspension were carried out. The test results of the design model and the numerical simulation results are analyzed and compared with the benchmark model. The results show that the design model is obviously weaker than that of the original structure and has a better damping effect. The effectiveness of the design of the double shell structure is verified.
【作者單位】: 海軍裝備研究院;海軍工程大學(xué)艦船工程系;
【基金】:國(guó)家自然科學(xué)基金(51205404) 國(guó)防科技預(yù)研基金項(xiàng)目(4011101020101)
【分類(lèi)號(hào)】:U661.44
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