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学术报告会通知(安西月讲师)
(来源:航空学院 作者:张金凤 编辑: 点击:663 发表时间:2019-12-02)
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题目:Investigation on the bandgap properties and vibration isolation performances of metalattice structures

报告人:安西月讲师(航空学院航空航天交叉研究院)

时间:2019125日(周四)1430

地点:明故宫校区A18-209会议室

主办单位:科协、航空学院、航空航天交叉研究院

报告内容摘要:

The discrete acoustic metamaterial (AM) models composed of mass-spring subsystems with multi or graded resonators and the continuous AM-based lattice model including a cross type core consisting of two segments namely with a radius jump discontinuity at the midspan in each rod are proposed. Wave propagation in the models is studied to investigate the dispersion relations and vibration bandgaps. Three dimensional (3D) AM-based metalattice structures consisting of beams were fabricated by selective laser sintering (SLS)-based 3D-printing technology. The bandgaps induced by local resonances and waveform transformations are obtained by calculating the band structure of the AM-based lattice structure using finite-element (FE) simulations and the results are verified by conducting experiments about vibration transmission.

报告人简介:

安西月,南京航空航天大学航空学院讲师。20196月博士毕业于河海大学固体力学专业,同年入职南京航空航天大学交叉研究院。201610月至20189月,在德国锡根大学联合培养2年。主要从事声学超材料理论模型分析、数值仿真和实验测试等方面的研究,近五年发表SCI论文8,其中,第一作者6篇。


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