舰船多层衰波媒质的振动传递矩阵模型

Vibration Transfer Matrix Model of Warship Multilayered Wave-attenuation Media

舰船多层衰波媒质隔振技术是一种基于新型机理的隔振技术。针对其在振动传递效率影响中的静力学问题,通过分析结构物振动能量表征方式并采用声学边界条件,建立振动波斜入射多层衰波媒质时的声强二维传递矩阵模型。推导出声强透射、反射系数。通过专门的验证性实验,证明了多层衰波媒质隔振技术高效的实施效果。同时将二维传递矩阵模型理论计算值与文献中的计算结果进行比较,对比结果验证了模型计算的准确性,说明利用该模型从理论上考察多层媒质的衰波隔振效率是合适的。

Warship vibration isolation technology of multilayered wave-attenuation is based on new mechanism. In view of the statics division of it, which is the influence of vibration transfer efficiency showed by the new technol- ogy mentioned above, a two-dimensional transfer matrix model was presented in the condition of oblique incidence, and the derivation equation of transmission coefficient and reflection coefficient were gotteh. The construction of transfer matrix model is based on the representation analysis of structure vibration energy and acoustic boundary conditions, which is taken advantage of researching the implementation effect on vibration isolation technology of muhilayered wave-attenuation. The experimental equipment of validation is designed, which is to provided experi- mental values and the excellent implementation effect on multilayered wave-attenuation vibration isolation is verified in addition, the calculation accuracy of the new model has been verified by comparatively analyzing the results of the model and other literature.