Ti6Al4V有序多孔Diamond夹芯结构隔声性能研究  

Sound insulation performance of Ti6Al4V ordered porous Diamond sandwich structure based on triply periodic minimal surface

作　　者：张鹏飞 李忠华 刘斌[2] 李亚东 ZHANG Pengfei;LI Zhonghua;LIU Bin;LI Yadong(School of Mechanical Engineering,North University of China,Taiyuan 030051,China;School of Materials Science and Engineering,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学机械工程学院,太原030051 [2]中北大学材料科学与工程学院,太原030051

出　　处：《兵器装备工程学报》2024年第6期267-274,共8页Journal of Ordnance Equipment Engineering

基　　金：国家自然科学基金委员会面上项目(52275278);中国博士后科学基金面上项目(2022M721430)。

摘　　要：基于三周期极小曲面(TPMS)的Ti6Al4V有序多孔夹芯结构具有轻质、高强以及可设计性好等优点,在航空航天、生物医学等领域具有广阔的应用前景,而其隔声性能还没有得到充分的研究。基于此,通过TPMS隐函数法设计了Ti6Al4V有序多孔Diamond夹芯结构,研究了胞元层数、面板厚度、体积分数3个参数对其隔声性能的影响。结果表明,体积分数对钛合金有序多孔Diamond夹芯结构的隔声性能影响最大,胞元层数次之,面板厚度影响较小。增大体积分数和调节胞元层数都可以有效的提升夹芯结构的隔声性能。在Diamond夹芯结构具备轻质高强的基础上研究其隔声性能,扩展了Ti6Al4V有序多孔夹芯结构的多功能性。Ti6Al4V ordered porous sandwich structure based on Triply Periodic Minimal Surface(TPMS)has the advantages of light weight,high strength and good designability,and has broad application prospects in aerospace,biomedicine and other fields,but its sound insulation performance has not been fully studied.Based on this,the Ti6Al4V ordered porous Diamond sandwich structure is designed by TPMS implicit function method,and the effects of cell layer number,panel thickness and volume fraction on its sound insulation performance are studied.The results show that the volume fraction has the greatest effect on the sound insulation performance of titanium alloy ordered porous Diamond sandwich structure,and the cell layer number has the smallest effect on the panel thickness.Increasing the volume fraction and adjusting the number of cell layers can effectively improve the sound insulation performance of the sandwich structure.The sound insulation performance of Diamond sandwich structure is studied on the basis of its light weight and high strength,and the versatility of Ti6Al4V ordered porous sandwich structure is extended.

关 键 词：三周期极小曲面 选区激光熔化技术 夹芯结构 隔声性能 

分 类 号：TB535[理学—物理]