随着航空航天轻质高速化和精密仪器设备自动化的发展,振动问题日益凸显.夹芯复合材料比强度高、比模量大、减振性能优良,兼具结构和功能一体化的特性,成为航空航天领域研究的热点.从复合材料基体、增强体、界面3个方面阐述了复合材料的减振机理,介绍了目前研究热门的夹芯结构以及芯材、面板、结合界面及其相互作用对阻尼性能的影响规律,概述了夹芯复合材料阻尼改性的研究现状,最后对夹芯复合材料阻尼的研究方向进行了展望.
With the development of lightweight, high speed and automation of precision instrument and equipment, the vibration problem is increasingly prominent.Sandwich composite has become a hot spot in the field of aeronautics and astronautics due to high strength, high specific modulus, excellent damping performance, the characteristics of structural and functional integration.The damping mechanism from the matrix of composite, reinforcement and interface is elaborated, then the current popular research on the sandwich structures and the influence on damping performance from the core material, panel, bonding interface and interaction between them are introduced.The researches on damping modification of sandwich composite materials are summarized, finally the research direction on sandwich composite damping is prospected.
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