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[1]许海亮,郭旭,宋义敏,等.新型矿用圆弧形薄壁防冲吸能装置屈曲特性数值分析*[J].中国安全生产科学技术,2021,17(9):90-96.[doi:10.11731/j.issn.1673-193x.2021.09.014]
 XU Hailiang,GUO Xu,SONG Yimin,et al.Numerical analysis on buckling characteristics of a new circular arc thin-wall anti-impact and energy-absorbing device for mine[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2021,17(9):90-96.[doi:10.11731/j.issn.1673-193x.2021.09.014]
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新型矿用圆弧形薄壁防冲吸能装置屈曲特性数值分析*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
17
期数:
2021年9期
页码:
90-96
栏目:
职业安全卫生管理与技术
出版日期:
2021-09-30

文章信息/Info

Title:
Numerical analysis on buckling characteristics of a new circular arc thin-wall anti-impact and energy-absorbing device for mine
文章编号:
1673-193X(2021)-09-0090-07
作者:
许海亮郭旭宋义敏覃吉宁朱万宇
(北方工业大学 土木工程学院,北京 100144)
Author(s):
XU Hailiang GUO Xu SONG Yimin QIN Jining ZHU Wanyu
(School of Civil Engineering,North China University of Technology,Beijing 100144,China)
关键词:
防冲吸能装置弧形薄壁结构冲击地压数值模拟
Keywords:
anti-impact and energy-absorbing device circular arc thin-wall structure rock burst numerical simulation
分类号:
X936;TD353
DOI:
10.11731/j.issn.1673-193x.2021.09.014
文献标志码:
A
摘要:
为解决支架面对冲击地压产生的强冲作用容易失效、失稳的难题,针对现有矿用防冲吸能装置存在的不足,提出1种新型矿用圆弧形薄壁防冲吸能装置。采用ABAQUS有限元数值模拟方法对新型防冲吸能装置与原有方形预折纹薄壁装置进行对比分析,同时研究新型防冲吸能装置在不同壁厚和不同轴向模块堆积个数情况下的屈曲特性。结果表明:圆弧形薄壁装置相比于方形折纹薄壁装置在相同厚度情况下其总吸能提升近20%,比吸能提高63%,装置防冲优势明显;在装置高度不变的情况下增加模块轴向堆积个数可有效降低压溃峰值荷载、荷载波动系数,增加平均压溃荷载;随着装置薄壁厚度降低,压溃峰值荷载、压溃平均荷载、总吸能与比吸能均降低,荷载波动系数增加,曲线波动性变大。
Abstract:
In order to solve the problem that the support surface is liable to occur failure and instability under the strong impact effect of rock burst,based on the shortcomings of the existing anti-impact and energy-absorbing device used in mine,a new circular arc thin-wall anti-impact and energy-absorbing device for mine was proposed.The ABAQUS finite element numerical simulation method was used to compare and analyze the new anti-impact and energy-absorbing device with the original square pre-folded thin-wall device.Meanwhile,the buckling characteristics of the new anti-impact and energy-absorbing device under different wall thicknesses and different numbers of axial stacking modules were studied.The results showed that under the same thickness,the total energy absorption of the circular arc thin-walled device was nearly 20% higher than that of the square folded thin-wall device,and its specific energy absorption increased by 63%,so the circular arc thin-wall device had obvious anti-impact advantages.Under the same device height,increasing the number of axial stacking modules could effectively reduce the peak crushing load and load fluctuation coefficient,and increase the average crushing load.As the thin-wall thickness of the device decreased,all the peak crushing load,average crushing load,total energy absorption and specific energy absorption decreased,the load fluctuation coefficient increased,and the curve fluctuation became larger.

参考文献/References:

[1]潘一山.煤矿冲击地压[M].北京:科学出版社,2018.
[2]JIANG Y D,PAN Y S,JANG F X,et al.State of the art review on mechanism and prevention of coal bumps in China [J].Journal of China Coal Society,2014,39(2):205-213.
[3]PAN Y S.Study on the occurrence and failure process of rockburst [D].Beijing:Tsinghua University,1999.
[4]潘立友,孙刘伟,范宗乾.深部矿井构造区厚煤层冲击地压机理与应用[J].煤炭科学技术,2013,41(9):126-128,137. PAN Liyou,SUN Liuwei,FAN Zongqian.Mine pressure bump mechanism of thick seam in deep mine structure zone and application [J].Coal Science and Technology,2013,41(9):126-128,137.
[5]于正兴,姜福兴,李峰,等.深井复杂条件下冲击地压主动防治技术[J].煤炭科学技术,2015,43(3):26-29,35. YU Zhengxing,JIANG Fuxing,LI Feng,et al.Initiative prevention and control technology of mine pressure bump under complicated condition of deep mine [J].Coal Science and Technology,2015,43(3):26-29,35.
[6]潘一山,肖永惠,李国臻.巷道防冲液压支架研究及应用[J].煤炭学报,2020,45(1):90-99. PAN Yishan,XIAO Yonghui,LI Guozhen.Roadway hydraulic support for rockburst prevention in coal mine and its application [J].Journal of China Coal Society,2020,45(1):90-99.
[7]杜星文.圆柱壳冲击动力学及耐撞性设计[M].北京:科学出版社,2004.
[8]YU T X.Impact energy absorbing devices based upon the plastic deformation of metallic elements [J].Advances in Mechanics,1986,16 (1):28-39.
[9]YUEN S C K,NURICK G N.The energy-absorbing characteristics of tubular structures with geometric and material modifications:an overview [J].Applied Mechanics Review,2008,62 (2):208021-2080215.
[10]ABRAMOWICZ W.Thin-walled structures as impact energy absorbers [J].Thin-walled Structures,2003,41 (2,3):91-107.
[11]张雄.轻质薄壁结构耐撞性分析与优化设计[D].大连:大连理工大学,2007.
[12]SINGACE A A,EI-SOBKY H.Beheaviour of axially crushed corrugated tubes [J].International Journal of Mechanical Sciences,1997,36(3):249-268.
[13]王博,周才华,由衷.预折纹管在低速冲击载荷作用下的能量吸收[J].爆炸与冲击,2015,35(4):473-481. WANG Bo,ZHOU Caihua,YOU Zhong.Energy absorption of pre-folded origami under low speed impact [J].Explosion and Shock Waves,2015,35(4):473-481.
[14]唐治,潘一山,朱小景,等.六边薄壁构件径向压缩下的吸能防冲特性分析[J].煤炭科学技术,2016,44 (11):56-61. TANG Zhi,PAN Yishan,ZHU Xiaojing,et al.Analysis on energy absorption and impact prevention features of hexagonal thin-wall component under radial compression [J].Coal Science and Technology,2016,44(11):56-61.
[15]郝志勇,王率领,潘一山.矿用防冲折纹筒屈曲吸能特性影响研究[J].振动与冲击,2018,37(13):141-148,170. HAO Zhiyong,WANG Shuailing,PAN Yishan.Anti-impact folding barrels buckling energy absorbing characteristics [J].Journal of Vibration and Shock,2018,37(13):141-148,170.

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备注/Memo

备注/Memo:
收稿日期: 2021-03-11;网络首发日期: 2021-08-05
* 基金项目: 国家自然科学基金项目(51774015)
作者简介: 许海亮,博士,副教授,主要研究方向为岩石力学理论与实验、冲击地压等。
通信作者: 宋义敏,博士,教授,主要研究方向为岩石力学理论与实验。
更新日期/Last Update: 2021-10-02