CuZnAl形状记忆合金框架结构减振及其阻尼比计算  

Vibration Damping Ratio Calculation of Frame Structure of CuZnAl Shape Memory Alloy

作　　者：司乃潮[1] 余松林[1] 刘海霞[1] 王晓东[1] 史强军[1] 

机构地区：[1]江苏大学材料科学与工程学院,江苏镇江212013

出　　处：《噪声与振动控制》2008年第2期58-61,65,共5页Noise and Vibration Control

基　　金：江苏省科技攻关项目(项目编号:BE2004027)

摘　　要：用动态数据采集分析仪对安装在两层框架结构模型上的CuZnAl形状记忆合金进行减振控制试验,并对框架结构减振模型及其阻尼比进行计算。试验结果表明,CuZnAl形状记忆合金可用于框架结构的减振控制,同时明显降低框架结构的振动频率,从而可使框架结构避开共振。安装CuZnAl形状记忆合金后,使框架阻尼比明显增大,根据热处理方式的不同,一般提高5.8倍-26.8倍。The experiment of vibration control of CuZnAl dampers installed in a two-story frame model was carded out with dynamic data collector and analyzer. And the vibration reduction model and damping ratio were calculated. Experimental results showed that CuZnAl shape memory alloy could obviously reduce vibration frequency and make frame structure avoiding resonance. With CuZnAl dampers, the damping ratio of frame structure increases distinctly up to 5.8 to 26.8 times in terms of different heat treatments.

关 键 词：振动与波 CUZNAL 形状记忆合金 框架结构 减振控制 阻尼比 

分 类 号：TG139.6[一般工业技术—材料科学与工程]