阎琨Yan Kun

(副教授)

 博士生导师  硕士生导师
学位:博士
性别:男
毕业院校:大连理工大学
所在单位:化工学院
电子邮箱:yankun@dlut.edu.cn

论文成果

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Residual vibration reduction for translation unconstrained or partially unconstrained structures by structural optimization

发表时间:2019-03-12 点击次数:

论文名称:Residual vibration reduction for translation unconstrained or partially unconstrained structures by structural optimization
论文类型:期刊论文
第一作者:Yan, Kun
通讯作者:Cheng, GD (reprint author), Dalian Univ Technol, Fac Vehicle Engn & Mech, State Key Lab Struct Anal Ind Equipment, Dalian 116023, Peoples R China.
合写作者:Wang, Bo Ping,Cheng, Geng Dong
发表刊物:COMPUTERS & STRUCTURES
收录刊物:SCIE
卷号:210
页面范围:12-27
ISSN号:0045-7949
关键字:Lyapunov equation; Residual vibration reduction; Transient dynamic response based optimization; Translation unconstrained or partially unconstrained structures
摘要:This paper studies residual vibration reduction in translation unconstrained or partially unconstrained structures by structural optimization. Suppression of elastic residual vibration is of great concern in many fields, and several approaches have been proposed to deal with it through structural optimization. However, these approaches are suitable for completely constrained structures, while unconstrained and partially unconstrained structures are not considered in particular. The dynamic responses of the latter include not only elastic responses but also rigid body responses. The rigid body responses make several effective structural optimization approaches inapplicable. This paper proposes two methods to solve the problem arising from the rigid body responses. Then the abovementioned effective approaches based on completely constrained models are applied to study the optimization of translation unconstrained or partially unconstrained structures to minimize the residual vibration. To reduce the computational burden of optimization, model reduction is further applied in this research. Finally, several numerical examples are presented to illustrate the effectiveness of the proposed approaches. The optimized results for residual vibration minimization show superiority over those obtained with classical objective functions. (C) 2018 Elsevier Ltd. All rights reserved.
发表时间:2018-11-01