箱装体局域共振超材料封板抑振特性研究  

Vibration suppression performance of case module metamaterial sealing plate

作　　者：王帅 马炳杰 童宗鹏 殷长春 张丽 WANG Shuai;MA Bingjie;TONG Zongpeng;YIN Changchun;ZHANG Li(Shanghai Marine Diesel Engine Research Institute,Shanghai 201108,China;National Key Laboratory of Marine Engine Science and Technology,Shanghai 201108,China;National Engineering Research Center of Special Equipment and Power System for Ship and Marine Engineering,Shanghai 200031,China)

机构地区：[1]中国船舶集团有限公司第七一一研究所,上海201108 [2]先进船舶发动机技术全国重点实验室,上海201108 [3]船舶与海洋工程特种装备和动力系统国家工程研究中心,上海200031

出　　处：《振动与冲击》2025年第4期118-125,共8页Journal of Vibration and Shock

基　　金：先进船舶发动机技术国家重点实验室基金项目(LAB-2023-12N)。

摘　　要：为有效解决箱装体200 Hz以下低频振动控制难题,提升箱装体底架的抑振性能,以箱装体底架封板为研究对象,建立了箱装体底架有限元模型,分析了底架振动特性。在此基础上,采用布洛赫定理与平面波展开法建立了局域共振胞元理论模型,提出了局域共振超材料封板设计方法,计算了箱装体底架封板振动响应,评估了局域共振型箱装体底架振动抑制性能,实现了200 Hz以下频段内窄带振动的有效控制。箱装体局域共振超材料封板设计方法的提出丰富了箱装体底架振动控制技术,为后续局域共振超材料技术在船舶振动控制工程应用提供了参考。In order to effectively suppress structural vibration below 200 Hz,the finite element model of the gas turbine module bottom frame was built.The vibration characteristics of the bottom frame were analyzed.Based on Bloch’s theorem and plane wave expansion method,the local resonance cell theory model was established.A design method of the local resonance sealing plate was proposed.The vibration response of the sealing plate on the gas turbine module was calculated.The vibration suppression performance of the local resonance bottom frame on the module was evaluated.The Results show that the local resonance metamaterial technique can effectively attenuate the narrow⁃band vibration below 200 Hz.The design method of the local resonance metamaterial sealing plate proposed in this paper can provide a new feasible means of low frequency vibration control.Furthermore,the results provide a reference for the subsequent application of local resonance metamaterial technology in ship vibration suppression.

关 键 词：箱装体 低频 振动特性 局域共振 带隙 

分 类 号：U661.44[交通运输工程—船舶及航道工程]