1、汇报安排

题目：参加ICSV23国际会议总结报告会

时间：2016年7月20日20:00-21:00

地点：我院振噪所会议室

报告人：博1113班-李锁斌

2、参加国际会议信息

会议名称：ICSV23 (The 23rd International Congress on Sound and Vibration)

会议时间：10-14 July 2016

会议地点：雅典，希腊

会议简介：第23届国际声学与振动会议（ICSV23，The 23rd International Congress on Sound and Vibration）是由国际声与振动学会IIAV发起组织的声学与振动研究方面的系列国际学术会议，从1994年开始，每年举行一次，迄今已举办了23届，每届会议的参加人数在400~800人之间，同时会议还展出声学与振动研究方面最新的仪器设备产品和技术，是振动领域影响力最为广泛的学术会议，具有很高的国际声誉。

会议交流工作

Presentation：Low-frequency band gaps in a double –sided stubbed composite PCs plate（李锁斌）

3、参会论文信息

论文标题：Low-frequency band gaps in a double –sided stubbed composite PCs plate

作者：李锁斌，陈天宁，王小鹏，奚延辉

摘要：In this paper, the band structures of lamb wave in a double-sided composite PC plate composed of a square array of cylindrical stubs on both sides of a 2D binary locally resonant PC plate is studied. The dispersion relationships and the displacement fields of the eigenmodes are calculated by FEM. Numerical results show that, in this structure, the band gaps will shift to lower frequencies and more band gaps appear compared with the classic double-sided stubbed PC plate and the one-sided stubbed composite PC plate. The evolution of band gaps in the double-sided stubbed composite PC plate with stub height on both side arranged from an asymmetrical distribution to a symmetrical distribution gradually is investigated to illustrate these phenomenon. The displacement fields of the eigenmodes are calculated to further illustrate the opening mechanism of the band gaps in lower frequencies. Furthermore, the effects of geometric parameters on the band gaps are investigated. Results show that the band gaps can be modulated in an relatively lower and larger frequency range by the geometric parameters such as the stub diameter and plate thickness. These acoustic properties in the proposed PC plate can potentially be applied to optimize band gaps and produce lower-frequency filters and waveguides.

欢迎有兴趣的同学届时前来交流。