负泊松比超材料隔振基座的实船应用分析

探索负泊松比超材料隔振基座在实船中主机减振应用。通过数值计算方法，分别对内六角蜂窝型与星型超材料结构隔振基座的力学性能进行分析，并在整船有限元计算中对比分析了隔振基座的隔振性能。研究表明，负泊松比超材料隔振基座的静力学性能与传统基座类似，隔振性能相比传统基座有明显提升，可以实现船用主机低中频段的隔振和主机基座设计的轻量化。

Study on the Vibration Isolation Marine Base made of Auxetic Metamaterials

A vibration isolation marine base made of auxetic materials was designed, aiming to isolate the ship from the vibrations caused by the marine diesel engine. We studied the static properties of the vibration isolation base and frequency responses of the whole geophysical vessel by numerical simulation. The vibration level and vibration level difference were calculated to character the vibration isolation ability of the marine base. According to simulation results, the auxetic marine base has qualified static performance. Compared to traditional marine base, the auxetic marine base showed not only impressive vibration isolation performance, but also the probability of designing the marine base lighter with cellular materials.