Peng Hao
Personal Homepage
Paper Publications
超大直径网格加筋筒壳快速屈曲分析方法
Hits:

Indexed by:期刊论文

Date of Publication:2016-08-15

Journal:航空学报

Included Journals:EI、CSCD

Volume:38

Issue:2

Page Number:178-186

ISSN No.:1000-6893

Key Words:网格加筋筒壳;渐进均匀化法;瑞利-里兹法;屈曲分析;优化设计

Abstract:针对新一代重型运载火箭及大型飞机中存在的超大直径网格加筋壳结构,提出了一种快速屈曲分析方法.首先,基于渐进均匀化法的快速数值实现方法和瑞利里兹法建立了快速屈曲分析框架,并通过与算例中等效刚度法屈曲载荷结果进行比较,验证了本文方法具有较高的预测精度.然后,对比了3种结构尺寸下网格加筋壳屈曲分析效率,结果表明本文方法不受结构尺寸影响,平均计算时间仅为6 s,凸显了其用于超大直径结构分析的高效性.进而,基于本文方法对4种传统加筋构型及2种新型多级加筋构型进行屈曲载荷评估,其预测误差均在3.0%以内,表现出广泛的构型适用性.在此基础上,通过优化设计的方法对比了上述6种加筋构型的承载效率,优化结果表明本文提出的多级三角型加筋构型最具承载优势,相较于初始方案取得了82.2%的承载增幅,可作为一种新型超大直径网格加筋壳结构储备.

Personal information

Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates

Main positions:Professor

Other Post:工程力学系主任

Gender:Male

Alma Mater:Dalian University of Technology

Degree:Doctoral Degree

School/Department:Department of Engineering Mechanics, State Key Laboratory of Structural Analysis for Industrial Equipment

Discipline:Solid Mechanics. Aerospace Mechanics and Engineering. Computational Mechanics. Engineering Mechanics

Contact Information:haopeng@dlut.edu.cn

Click:

Open time:..

The Last Update Time:..


Address: No.2 Linggong Road, Ganjingzi District, Dalian City, Liaoning Province, P.R.C., 116024

MOBILE Version