局域共振型磁流变隔振支座低频完全禁带研究  

Study on Low-Frequency Complete Band Gaps of Local Resonant Magnetorheological Vibration Isolators

作　　者：许振龙[1,2] 吴福根[2] 黄亮国[1] 

机构地区：[1]广东科学技术职业学院机械与电子工程学院,广东珠海519090 [2]广东工业大学实验教学部,广东广州510006

出　　处：《压电与声光》2015年第2期330-333,共4页Piezoelectrics & Acoustooptics

基　　金：广东省自然科学基金资助项目(S2012020010885);广东科学技术职业学院校级重点基金资助项目(XJZD201304)

摘　　要：将声子晶体及超材料理论引入磁流变弹性体隔振支座的设计,构建了局域共振型的隔振支座,并研究其低频完全禁带及振幅分布。结果表明,改变共振型超材料单元质量块的形状,系统不仅在低频处出现共振禁带,且在稍高处产生多条布喇格散射宽禁带。这将为隔振支座设计提供新的思路。By introducing phononic crystals and metamaterials theory into designing the magnetorheological elastomer vibration isolator,the local resonant isolator was constructed,and the complete band gaps and the amplitude distribution in low frequencies were studied.The results show that,by changing the mass shapes in metamaterial unit,the system exits the resonant band gap in low frequency,and gains multiple large Bragg scattering band gaps in higher frequencies.These will provide new ideas for the design of vibration isolator.

关 键 词：声子晶体 超材料 磁流变弹性体 弹性波 弹性波带隙 

分 类 号：TN04[电子电信—物理电子学] TM27[一般工业技术—材料科学与工程]