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阎军

Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates


Main positions:Deputy director of the Department of Engineering Mechanics
Gender:Male
Alma Mater:Dalian University of Technology
Degree:Doctoral Degree
School/Department:Engineering Mechanics
Discipline:Engineering Mechanics. Computational Mechanics. Solid Mechanics. Aerospace Mechanics and Engineering. Design and Manufacture of Ship and Ocean Structure
Business Address:Room 305, Engineering Mechanics Department Building
Contact Information:0411-84706832
E-Mail:yanjun@dlut.edu.cn
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Current position: Home >> Scientific Research >> Paper Publications

基于改进离散材料插值格式的复合材料结构优化设计

Hits : Praise

Indexed by:期刊论文

Date of Publication:2012-12-25

Journal:航空学报

Included Journals:PKU、ISTIC、CSCD、Scopus

Volume:33

Issue:12

Page Number:2221-2229

ISSN No.:1000-6893

Key Words:复合材料;离散材料优化;惩罚模型;纤维铺角;收敛率

Abstract:针对采用离散材料优化(DMO)模型优化复合材料纤维分布时角度优化结果收敛率低的问题,将连续化惩罚策略与Heaviside惩罚函数引入传统DMO模型中,提出了一种改进的HPDMO (Heaviside Penalization of Discrete Material Optimization)模型,从而提高结构的收敛率.建立了复合材料单层板基于最小柔顺性设计的优化列式,给出了多种离散材料构成结构的灵敏度信息求解方法.分析比较了DMO模型、连续化惩罚模型和HPDMO模型对最终优化结果收敛率、目标函数、迭代历史的影响.数值算例表明,改进的离散材料惩罚模型不但可以显著地提高优化结果的收敛率,给出清晰的优化构型,而且可以通过较少的优化迭代步数实现这一结果,为纤维增强复合材料的优化设计在工程中的应用提供了新的技术手段.

 

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