快速液压冲击试验台研究
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摘要
针对矿山岩体力学研究及防冲支护装备、吸能结构承载能力研究中,缺少静载荷和动力载荷复合加载试验设备的问题,提出一种高压快速冲击试验台。该试验台采用液压加载方式,可以对不同结构的被试件进行冲击拉伸和冲击压缩试验。分析了试验台的结构组成及工作原理,阐述了试验台的静态加载、冲击动态加载、静-动复合加载三种加载方式,通过AMEsim软件分析了试验台的响应特性,并用ABAQUSE软件对试验台架进行了有限元分析。样机试制成功后,分别对锚杆等被试件进行了试验研究,结果表明,该试验台的三种加载方式可行,加载系统提供的加载力能够很好的模拟被试件实际工况。该试验台的研制为防冲支护装备的动态特性研究提供了平台,为进一步研究超高能级液压冲击试验台奠定基础。
Aiming at the problem of lack of test equipment for static-dynamic composite loading in studying the mine rock mechanics,and the load-bearing capacity of anti-scour support equipment and energy-absorbing structures,a kind of high-speed hydraulic impact test bench was proposed. It adopted a hydraulic loading form to do impact tensile and impact compression tests for specimens of different structures. Here,the structure and working principle of the test bench were analyzed. 3 loading modes of the bench including static loading,impact dynamic one,and static-dynamic composite one were presented. The response characteristics of the bench were analyzed using the software AMEsim. The finite element dynamic analysis for the bench was also conducted with the software ABAQUS. After the prototype was made,anchor rods,etc. were tested. The results showed that the bench's 3 loading modes are feasible,and the actual working conditions of specimens can be simulated by this loading test system. This bench provided a platform for studying dynamic characteristics of anti-scour support equipment and laid a foundation for further studying ultra-high energy level hydraulic impact test benchs.
Aiming at the problem of lack of test equipment for static-dynamic composite loading in studying the mine rock mechanics,and the load-bearing capacity of anti-scour support equipment and energy-absorbing structures,a kind of high-speed hydraulic impact test bench was proposed. It adopted a hydraulic loading form to do impact tensile and impact compression tests for specimens of different structures. Here,the structure and working principle of the test bench were analyzed. 3 loading modes of the bench including static loading,impact dynamic one,and static-dynamic composite one were presented. The response characteristics of the bench were analyzed using the software AMEsim. The finite element dynamic analysis for the bench was also conducted with the software ABAQUS. After the prototype was made,anchor rods,etc. were tested. The results showed that the bench's 3 loading modes are feasible,and the actual working conditions of specimens can be simulated by this loading test system. This bench provided a platform for studying dynamic characteristics of anti-scour support equipment and laid a foundation for further studying ultra-high energy level hydraulic impact test benchs.
引文
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[17]谢腾飞,赵继云,王温锐,等.液压支架大流量安全阀动态特性试验方法研究[J].液压与气动,2010(12):17-19.XIE Tengfei,ZHAO Jiyun,WANG Wenrui,et al. Study on dynamical characteristics test methods of high flow relief valve for hydraulic support[J]. Chinese Hydraulics and Pneumatics,2010(12):17-19.
[18]徐昆鹏,丁海港,李广洲,等.高压大流量安全阀实验装置研究[J].煤矿机械,2013,34(2):165-166.XU Kunpeng, DING Haigang, LI Guangzhou, et al.Research on experimental platform of high pressure and large flow relief valve[J]. Coal Mine Machinery,2013,34(2):165-166.
[19]王洁,王慧.采煤机截割部二次调节液压加载试验台[J].中国机械工程,2016,27(14):1953-1959.WANG Jie,WANG Hui. Hydraulic loading test bench for cutting part of shearer based on secondary regulation[J].China Mechanical Engineering,2016,27(14):1953-1959.
[20]NIEROBISZ A. Investigation of mine roadway support loadduring seismic events[J]. Journal of Mining Science,2012,48(2):298-307.
[2]付玉凯,苗永春,杨威.煤岩在冲击载荷下的动态力学特性对比分析[J].煤炭科学技术,2015,43(11):6-11.FU Yukai, MIAO Yongchun, YANG Wei. Comparison analysis on dynamic mechanics features of coal and rock under shock load[J]. Coal Science and Technology,2015,43(11):6-11.
[3]李晨,何满潮,宫伟力.不同冲击速率下恒阻大变形锚杆动力学特性分析[J].煤炭科学技术,2015,43(9):53-58.LI Chen,HE Manchao,GONG Weili. Analysis on kinetic features of constant resistance high deformed bolt under different impact velocity[J]. Coal Science and Technology,2015,43(9):53-58.
[4]吴迪,王颂,王可,等.动力冲击下岩石损伤规律的试验研究[J].煤炭技术,2015,43(2):104-106.WU Di,WANG Song,WANG Ke,et al. Experimental study on damage evolution law of rock under dynamic impact loadings[J]. Coal Technology,2015,34(2):104-106.
[5]KURLENYA M V,OPARIN V N,VOSTRIKOV V I.Pendulum-type waves,Part II:experimental methods and main results of physical modeling[J]. Journal of Mining Science,1996,32(4):245-273.
[6]潘一山,肖永惠,李忠华,等.冲击地压矿井巷道支护理论研究及应用[J].煤炭学报,2014,39(2):222-228.PAN Yishan,XIAO Yonghui,LI Zhonghua,et al. Study of tunnel support theory of rockburst in coal mine and its application[J]. Journal of China Coal Society,2014,39(2):222-228.
[7]杨巨文,唐治,何峰,等.矿用扩径式,吸能构件吸能防冲特性研究[J].振动与冲击,2015,34(8):134-138.YANG Juwen, TANG Zhi, HE Feng, et al. Energy absorption and anti-impact properties of mine diameterexpanding energy absorption components[J]. Journal of Vibration and Shock,2015,34(8):134-138.
[8]吕祥锋,潘一山,李忠华.多孔金属材料刚柔吸能结构及其在冲击地压巷道支护中的应用[J].防灾减灾工程学报,2011,31(2):185-190.LXiangfeng, PAN Yishan, LI Zhonghua. Rigid-flexible energy absorbing structure with porous metal material and its application to roadway support of rockburst[J]. Journal of Disaster Prevention and Mitigation Engineering, 2011,31(2):185-190.
[9]贺虎,窦明林.巷道防冲机理及支护控制研究[J].采矿与安全工程学报,2010,27(1):40-44.HE Hu,DOU Minglin. Mechanism of rockburst prevention and supporting control technology in roadways[J]. Journal of Mining and Safety Engineering,2010,27(1):40-44.
[10]潘俊锋,毛德兵,蓝航,等.我国煤矿冲击地压防治技术研究现状及展望[J].煤炭科学技术,2013,41(6):21-25.PAN Junfeng,MAO Debing,LAN Hang,et al. Study status and prospects of mine pressure bumping control technology in China[J]. Coal Science and Technology,2013,41(6):21-25.
[11]李宝富,魏向志,任永康,等.煤层巷道底板动态破坏机理及控制技术[J].煤炭科学技术,2013,41(10):34-37.LI Baofu,WEI Xiangzhi,REN Yongkang,et al. Dynamic failure mechanism and control technology of roadway floor[J]. Coal Science and Technology,2013,41(10):34-37.
[12]蔺卫平,李娜,王亚龙,等.落锤撕裂试验与大能量摆锤冲击试验的对比与分析[J].焊管,2014,37(2):44-47.LIN Weiping,LI Na,WANG Yalong,et al. Comparison and analysis on drop-weight tear test(DWTT)and high energy pendulum impact test[J]. Welded Pipe and Tube,2014,37(2):44-47.
[13]黄河,冉文生,王晓军. PVC-M管材高速落锤冲击试验机的设计与应用[J].中国测试,2014,40(21):72-74.HUANG He, RAN Wensheng, WANG Xiaojun, et al.Design and application of high speed drop hammer impact testing machine for PVC-M pipe[J]. China Measurement and Testing Technology,2014,40(21):72-74.
[14]朱明,赵桂范,张亮.基于Lab VIEW的落锤式冲击试验台设计[J].机械设计,2010,27(2):93-96.ZHU Ming,ZHAO Guifan,ZHANG Liang. Design on drop hammer typed impact testing bed based on Lab VIEW[J].Jouranl of Machine Design,2010,27(2):93-96.
[15]姜超,苑士华,荆崇波,等.液压冲击试验台系统设计研究[J].液压与气动,2006,29(2):33-36.JIANG Chao,YUAN Shihua,JING Chongbo,et al. Study on system design of a hydraulic thrust stand[J]. Chinese Hydraulics and Pneumatics,2006,29(2):33-36.
[16]王贡献,华宏星,汪玉.新型重载舰船设备冲击试验台机理分析与仿真[J].力学与实践,2009,31(4):54-58.WANG Gongxian,HUA Hongxing,WANG Yu. Mechanism analysis and simulation for a novel anti-shock testing system for heavy-weight ship board equipment[J]. Mechanics in Engineering,2009,31(4):54-58.
[17]谢腾飞,赵继云,王温锐,等.液压支架大流量安全阀动态特性试验方法研究[J].液压与气动,2010(12):17-19.XIE Tengfei,ZHAO Jiyun,WANG Wenrui,et al. Study on dynamical characteristics test methods of high flow relief valve for hydraulic support[J]. Chinese Hydraulics and Pneumatics,2010(12):17-19.
[18]徐昆鹏,丁海港,李广洲,等.高压大流量安全阀实验装置研究[J].煤矿机械,2013,34(2):165-166.XU Kunpeng, DING Haigang, LI Guangzhou, et al.Research on experimental platform of high pressure and large flow relief valve[J]. Coal Mine Machinery,2013,34(2):165-166.
[19]王洁,王慧.采煤机截割部二次调节液压加载试验台[J].中国机械工程,2016,27(14):1953-1959.WANG Jie,WANG Hui. Hydraulic loading test bench for cutting part of shearer based on secondary regulation[J].China Mechanical Engineering,2016,27(14):1953-1959.
[20]NIEROBISZ A. Investigation of mine roadway support loadduring seismic events[J]. Journal of Mining Science,2012,48(2):298-307.