摘要
磁性形状记忆合金(Magnetic Shape Memory Alloy)在磁场作用下所表现出的低能量诱发相变、大恢复应变、大输出应力、高响应频率和可精确控制的特性,使之有可能成为土木工程结构振动控制理想的驱动与传感材料。通过描述MSMA材料的变形机制,以及磁场、应变、应力之间的函数关系,分析了磁性形状记忆合金在工程结构振动控制应用中需要解决的问题,提出了磁性形状记忆合金在工程结构振动控制领域中的应用前景。
By Magnetic field ,magnetic shape memory alloy (MSMA) exhibits the properties of low engerny-induced transformation, large recovery strain and output stress, fast frequency response and high accuracy control. MSAM will be the perfect actuation and sensing material in civil engineering structure vibration control. The paper analyses the existing problems in the structure vibration control and proposes the prospects of applicaion of magnetic shape memory alloy (MSMA) to the structure vibration control after expounding shape variation mechanism of material and function relationship among magnetic field, strain and stress.
出处
《陕西交通职业技术学院学报》
2008年第4期5-8,共4页
Journal of Shaanxi College of Communication Technology
关键词
磁性形状记忆合金
磁力性能
振动控制
本构关系
Magnetic Shape Memory Alloy
Magnetic Properties
Vibration Control
Constitutive Relation