Local Thickening and Friction Reducing to Constant Resistance in a Prefolded Energy Absorption Device

The energy absorption support for impact resistance used in mining engineering is a prefolded energy absorption device. In this paper, through the quasistatic compression test and numerical simulation, the relationship between the deformation process, load-displacement curve, and plastic strain of t...

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Main Authors: Hailiang Xu, Jiaqi Song, Dong An, Yimin Song, Xiangfeng Lv
Format: Article
Language:English
Published: Wiley 2020-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/2020/8532534
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author Hailiang Xu
Jiaqi Song
Dong An
Yimin Song
Xiangfeng Lv
author_facet Hailiang Xu
Jiaqi Song
Dong An
Yimin Song
Xiangfeng Lv
author_sort Hailiang Xu
collection DOAJ
description The energy absorption support for impact resistance used in mining engineering is a prefolded energy absorption device. In this paper, through the quasistatic compression test and numerical simulation, the relationship between the deformation process, load-displacement curve, and plastic strain of the original prefolded energy absorbing device is studied. It is found that the concave side stiffness has an obvious effect on the first and second descending sections of the load-displacement curve, and the friction coefficient has an obvious effect on the second ascending section of that. In order to make the prefolded energy absorption device reach the state of constant resistance where the reaction load does not fluctuate or the fluctuation is small in the crushing process, the plastic strain is restrained by thickening the local area of the concave side, which effectively reduces the descending amplitude of the load-displacement curve. Whether continuoues deformation occurs is affected by the friction coefficient. Finally, a constant resistance energy absorption device is designed by thickening the concave side and reducing the friction coefficient. Compared with the original structure, the maximum bearing capacity of the constant resistance energy absorption device is basically unchanged, the average bearing capacity is increased by 29%, the total energy absorption is increased by 111%, the specific energy absorption is increased by 119%, and the load-displacement curve variance is reduced to 3% of the original structure.
format Article
id doaj-art-00a0d44971fc4ca4921dca956d9171c5
institution Kabale University
issn 1070-9622
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language English
publishDate 2020-01-01
publisher Wiley
record_format Article
series Shock and Vibration
spelling doaj-art-00a0d44971fc4ca4921dca956d9171c52025-02-03T00:58:42ZengWileyShock and Vibration1070-96221875-92032020-01-01202010.1155/2020/85325348532534Local Thickening and Friction Reducing to Constant Resistance in a Prefolded Energy Absorption DeviceHailiang Xu0Jiaqi Song1Dong An2Yimin Song3Xiangfeng Lv4School of Civil Engineering, North China University of Technology, Beijing 100144, ChinaSchool of Civil Engineering, North China University of Technology, Beijing 100144, ChinaSchool of Civil Engineering, North China University of Technology, Beijing 100144, ChinaSchool of Civil Engineering, North China University of Technology, Beijing 100144, ChinaSchool of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, ChinaThe energy absorption support for impact resistance used in mining engineering is a prefolded energy absorption device. In this paper, through the quasistatic compression test and numerical simulation, the relationship between the deformation process, load-displacement curve, and plastic strain of the original prefolded energy absorbing device is studied. It is found that the concave side stiffness has an obvious effect on the first and second descending sections of the load-displacement curve, and the friction coefficient has an obvious effect on the second ascending section of that. In order to make the prefolded energy absorption device reach the state of constant resistance where the reaction load does not fluctuate or the fluctuation is small in the crushing process, the plastic strain is restrained by thickening the local area of the concave side, which effectively reduces the descending amplitude of the load-displacement curve. Whether continuoues deformation occurs is affected by the friction coefficient. Finally, a constant resistance energy absorption device is designed by thickening the concave side and reducing the friction coefficient. Compared with the original structure, the maximum bearing capacity of the constant resistance energy absorption device is basically unchanged, the average bearing capacity is increased by 29%, the total energy absorption is increased by 111%, the specific energy absorption is increased by 119%, and the load-displacement curve variance is reduced to 3% of the original structure.http://dx.doi.org/10.1155/2020/8532534
spellingShingle Hailiang Xu
Jiaqi Song
Dong An
Yimin Song
Xiangfeng Lv
Local Thickening and Friction Reducing to Constant Resistance in a Prefolded Energy Absorption Device
Shock and Vibration
title Local Thickening and Friction Reducing to Constant Resistance in a Prefolded Energy Absorption Device
title_full Local Thickening and Friction Reducing to Constant Resistance in a Prefolded Energy Absorption Device
title_fullStr Local Thickening and Friction Reducing to Constant Resistance in a Prefolded Energy Absorption Device
title_full_unstemmed Local Thickening and Friction Reducing to Constant Resistance in a Prefolded Energy Absorption Device
title_short Local Thickening and Friction Reducing to Constant Resistance in a Prefolded Energy Absorption Device
title_sort local thickening and friction reducing to constant resistance in a prefolded energy absorption device
url http://dx.doi.org/10.1155/2020/8532534
work_keys_str_mv AT hailiangxu localthickeningandfrictionreducingtoconstantresistanceinaprefoldedenergyabsorptiondevice
AT jiaqisong localthickeningandfrictionreducingtoconstantresistanceinaprefoldedenergyabsorptiondevice
AT dongan localthickeningandfrictionreducingtoconstantresistanceinaprefoldedenergyabsorptiondevice
AT yiminsong localthickeningandfrictionreducingtoconstantresistanceinaprefoldedenergyabsorptiondevice
AT xiangfenglv localthickeningandfrictionreducingtoconstantresistanceinaprefoldedenergyabsorptiondevice