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An equivalent method for optimised design of nested tube energy absorber under space constraints

  • Lingyu Sun
  • , Dingxin Leng
  • , Weiwei Chen
  • , Bin Xu
  • , Dayong Hu
  • , Xiaojie Wang
  • , Jiangxia Shi

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

Abstract

This paper investigates the relationship of energy absorption between individual tube and nested tubes system in order to provide an equivalent design method for engineers. Firstly, both analytical and numerical methods were presented to analyze single tube under lateral point-loading compression, and the influences of material model and tube dimensions on energy absorption was studied. Secondly, an energy absorption system consisted of nested tubes was equivalently modeled by the combination of single tube in parallels or/and in series, and the resultant deformation and energy absorption were derived analytically by the present method. Several typical examples were verified numerically. It also discussed the relationship between structural effectiveness and solidity ratio for tube system and its components. Finally, a nested tubes system was optimized based on the requirements of installation space, crush distance and energy absorption capability. Copyright © 2011 by ASME.
Original languageEnglish
Title of host publicationASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011
PublisherAmerican Society of Mechanical Engineers
Pages25-30
Volume9
ISBN (Print)9780791854952
Publication statusPublished - 2011
Externally publishedYes
EventASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011 - Denver, CO, United States
Duration: 11 Nov 201117 Nov 2011

Publication series

Name
Volume9

Conference

ConferenceASME 2011 International Mechanical Engineering Congress and Exposition, IMECE 2011
PlaceUnited States
CityDenver, CO
Period11/11/1117/11/11

Research Keywords

  • Energy absorption
  • Finite element analysis
  • Lateral compression
  • Nested tubes
  • Optimization

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