Zhang Zhao
Professor Supervisor of Doctorate Candidates Supervisor of Master's Candidates
Main positions:Professor in Process Mechanics
Gender:Male
Alma Mater:Dalian University of Technology
Degree:Doctoral Degree
School/Department:Department of Engineering Mechanics, Dalian University of Technology
Discipline:mechanics of manufacturing process. Engineering Mechanics. Computational Mechanics
Business Address:Room 619,Integrated Laboratory building (1#)
Contact Information:+86-411-84708432 zhangz@dlut.edu.cn
E-Mail:zhangz@dlut.edu.cn
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Indexed by:会议论文
Date of Publication:2018-11-01
Key Words:声子晶体;带隙;拓扑优化;平面波展开法;遗传算法
Abstract:声子晶体是一种新型周期性结构功能材料,对弹性波的控制特性使得声子晶体在减振降噪方面具有广泛应用前景。为了获得最宽带隙,本文基于遗传算法和平面波展开法对由铝和环氧树脂组成的声子晶体薄板进行优化设计。运用平面波展开法获得其能带结构,通过傅里叶位移特性来获得声子晶体的结构函数。通过自适应遗传算法获得其交叉率和变异率。填充率不同,最优带隙和最优声子晶体拓扑构型不同。研究了不同影响因素包含对称性,聚合度和材料参数比等对优化结果的影响。同时,本文基于NSGA-II算法,通过对弯臂格栅结构声子晶体密度、弹性模量以及模型几何参数等因素对第一带隙宽度的影响规律的研究,对弯臂格栅结构声子晶体设计参数进行了优化。优化效果明显,可有效地改善声子晶体的带隙特性。
Zhang Zhao, Ph.D., Professor in Process Mechanics.
Editorial member in Coatings (IF:2.881) from 2020 to 2022.
Editorial member in Crystals (IF:2.589) from 2020 to 2022.
Younth editorial member in Journal of Central South University(IF:1.716) from 2020 to 2022.
Professor Zhang has published more than 60 SCI publications with over 1100 citations. He served as reviewers for more than 30 international journals. His main pulications can be found:
https://orcid.org/0000-0001-7181-8617
https://publons.com/researcher/1987190/zhao-zhang/
The scientific research focuses on experimental and numerical works on friction stir welding/processing/additive manufacturing, numerical modelling and simulation of additive manufacuring, topological design of phononic crystals, locomotive and high speed train design.
