不同种类形状记忆合金在结构振动控制中的研究现状

Research overview of different families of shape memory alloys used in structure vibration control

基于形状记忆合金(SMA)的结构振动控制研究得到了广泛关注,现今各类SMA的发展较快且差异较大,在结构振动控制中合理选取和应用SMA至关重要。因此,该研究从力学性能、温控能力、价格和使用安全性等方面分析了各类SMA的发展现状,综述了基于SMA的结构被动控制、主动控制和半主动控制研究成果,讨论了各类SMA在结构振动控制中的优势、问题和发展潜力,展望了SMA在土木工程中的应用前景,分析提出了未来研究中有待解决的关键问题。

Structure vibration control using shape memory alloy(SMA)has been widely considered.Currently,the SMA is developing pretty fast while there are huge differences among various families of SMAs.Therefore,the appropriate selection of the SMAs in structure vibration control is quite essential.In the paper,the developments of SMAs were reviewed with respect to mechanical properties,thermal control properties,cost and service safety,etc.Then,the structure passive control,structure active control and structure semi-active control using SMA were summarized and the advantages,challenges and potentials of different families of SMAs in these applications were discussed.The paper provides an outlook for the applications of SMAs in civil engineering and points out crucial problems which need to be solved in future studies.