剪切增稠液及其吸能减振作用研究进展

Progress in Shear Thickening Fluid Study and itsApplication in Energy Absorption and VibrationReduction Areas

目的 研究剪切增稠液(Shear Thickening Fluid, STF)及其吸能减振方面的应用,为实现更好的结构振动控制效果提供参考。方法 通过文献调查法和文献研究法,系统综述了剪切增稠液及其在吸能减振方面的应用,并重点介绍了在STF制备开发中实现复合功能所面临的挑战,如STF增稠机理需要完善、STF功能开发范围较为单一、STF振动控制应用有待拓展等。结果 剪切增稠液作为一种新兴的高阻尼智能材料,在材料制备、性能调控、成因机理和应用开发等方面取得了丰硕的研究成果;将剪切增稠液替代传统黏滞阻尼器的阻尼介质,可以显著提高黏滞阻尼器的耗能减振能力,也可用于隔震系统中以缓解隔震层的变形,从而有效保障结构抗震的安全性。结论 为进一步拓展STF的实用性,建议研究热点应更多关注功能化STF组分的引入以及与其他智能材料的复合应用,开发出具有复合功能的STF,便于更好地应用于实际项目或在结构构件中发挥其作用。

In order to provide a reference for better structural vibration control,shear thickening fluid(STF)and its application in energy absorption and vibration reduction were studied.By means of literature investigation and literature research,this paper systematically reviews shear thickening fluid and its application in energy absorption and vibration reduction.The challenges of realizing composite function in the preparation and development of STF are introduced,such as the need to improve the thickening mechanism of STF,the relatively simple development scope of STF function,and the application of STF vibration control needs to be expanded.As a new kind of intelligent material with high damping,shear thickening fluid has achieved fruitful research results in material preparation,property control,genetic mechanism and application development.By replacing the damping medium of traditional viscous dampers with shear thickening fluid,the energy dissipation capacity of viscous dampers can be significantly improved.In addition,the shear thickening fluid can also be used in the isolation system to alleviate the deformation of the isolation layer,so as to effectively ensure the seismic safety of the structure.In order to further expand the practicability of STF,it is suggested that more attention should be paid to the introduction of functional STF components and the composite application with other smart materials.In this way,STF with composite functions can be developed,which is easy to be better applied in practical projects or play its role in structural components.