[1]陈营利,李澄,周震寰,等.基于表面纳米化新型吸能结构的设计方法[J].地震工程与工程振动,2019,39(06):143-147.[doi:10.13197/j.eeev.2019.06.143.chenyl.020]
 CHEN Yingli,LI Cheng,ZHOU Zhenhuan,et al.A new design method of energy absorption structures aid surface self-nanocrystallization[J].EARTHQUAKE ENGINEERING AND ENGINEERING DYNAMICS,2019,39(06):143-147.[doi:10.13197/j.eeev.2019.06.143.chenyl.020]
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基于表面纳米化新型吸能结构的设计方法
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《地震工程与工程振动》[ISSN:/CN:]

卷:
39
期数:
2019年06
页码:
143-147
栏目:
论文
出版日期:
2019-12-31

文章信息/Info

Title:
A new design method of energy absorption structures aid surface self-nanocrystallization
作者:
陈营利1 李澄1 周震寰1 林志华2 徐新生1
1. 大连理工大学 工程力学系和工业装备结构分析国家重点实验室, 辽宁 大连 116024;
2. 香港城市大学 土木与建筑工程系, 中国 香港
Author(s):
CHEN Yingli1 LI Cheng1 ZHOU Zhenhuan1 LIM Cheewah2 XU Xinsheng1
1. State Key Laboratory of Structural Analysis for Industrial Equipment and Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, China;
2. Department of Civil and Architectural Engineering, City University of Hong Kong, Hong Kong, China
关键词:
吸能结构薄壁管表面纳米技术屈曲优化设计
Keywords:
structures of energy absorptionthin-walled tubetechnology of surface self-nanocrystallizationbuckling modeoptimization design
分类号:
O39
DOI:
10.13197/j.eeev.2019.06.143.chenyl.020
摘要:
根据局部表面纳米化诱导薄壁管结构的屈曲模态和后屈曲路径方法,提出一种新的吸能结构设计方法。通过优化局部表面纳米化的区域的形状、尺寸和孪晶间距等,实现控制屈曲模式的发展,提高结构的能量吸收和降低最大冲击载荷的目标。结果表明,经优化的局部表面纳米化,不仅可诱导和控制薄壁管稳定渐进紧凑的屈曲模态,而且可以大幅提高薄壁管的吸能效果以及保持原结构的外形。同时也为类似的问题提供一条研究思路。
Abstract:
A new design method of energy absorption structure is presented based on the method of local surface self-nanocrystallization inducing buckling modes and postbuckling paths of thin-walled tube structures in this paper. By optimizing the shape, size and twin spacing of the local surface nanocrystallization, the buckling mode of the structure is controlled in the development process, the energy absorption is improved and the maximum impact load is reduced. The results show that the method of optimized local surface self-nanocrystallization not only can induce and control steady progressive buckling modes of thin-walled tubes, but also can improve greatly the energy-absorbing properties and keep the shapes of the original structures. At the same time, the method provides a research idea for similar problems.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2019-08-14;改回日期:2019-09-12。
基金项目:大连市科技创新基金双重项目(2018J11CY005);深圳市科创委重大计划项目(JCYJ20170413141248626)
作者简介:陈营利(1995-),男,硕士研究生,主要从事工程力学研究.E-mail:ylchen@mail.dlut.edu.cn
通讯作者:徐新生(1957-),男,教授,博士,主要从事工程力学研究.E-mail:xsxu@dlut.edu.cn
更新日期/Last Update: 1900-01-01