中国机械工程

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综掘巷道超前支架相似实验样机理论与实验研究

谢苗;刘治翔;毛君;卢进南   

  1. 辽宁工程技术大学机械工程学院,阜新,123000
  • 出版日期:2017-04-10 发布日期:2017-04-07
  • 基金资助:
    国家自然科学基金资助项目(51304107);
    辽宁省煤矿液压技术与装备工程研究中心开放基金资助项目(CMHT-201206);
    辽宁省教育厅重点实验室资助项目(LJZS006)

Theoretical and Experimental Study on Similar Experimental Prototype of Advanced Support in Fully Mechanized Roadway

XIE Miao;LIU Zhixiang;MAO Jun;LU Jinnan   

  1. School of Mechanical Engineering, Liaoning Technical University,Fuxin,Liaoning,123000
  • Online:2017-04-10 Published:2017-04-07

摘要: 为了在实验室条件下,对综掘巷道超前支架进行动静力学实验分析,根据物理学相似关系,建立了超前支架原型机与实验样机的相似准则,确定了实验样机的主要参数,建立了实验样机。通过线性系统振型叠加的理论方法对实验样机进行了模态分析,并与模态实验结果进行了对比。通过理论方法对顶板在无支护、超前支架单组支护和双组支护下的力学特性进行分析,并与建立的实验平台得到的实验数据进行了对比分析。研究结果表明,模态分析的理论与实验结果误差最大值为12.57%,支架与顶板耦合力学的理论与实验结果误差最大值为14.80%,均低于20%,满足研究误差要求,验证了研究结果的可靠性。

关键词: 综掘巷道超前支架, 理论与实验研究, 实验样机, 模态分析

Abstract: Under laboratory conditions, in order to carry out roadway advanced support analysis static and dynamic experiments, according to the physics similarity relation, the similarity criterion between the advanced support prototype and experimental prototype was established, the main parameters of the experimental prototype was determined, then, the experimental prototype was established. The modal analysis of the experimental prototype was made by the theory of linear system mode superposition, and the results were compared with the experimental ones. The mechanical characteristics of the roof in the conditions of no support, the single support of advanced support and the support of two groups were analyzed by theoretical method, and the results were compared with the experimental data obtained from the experimental platform.The results show that the maximum error of the theoretical and experimental results of modal analysis is as 12.57%, the maximum error of the theoretical and experimental results of coupling mechanical supports and roof is as 14.80%, lower than 20%, to meet the research requirements verify the reliability of the research results.

Key words: advanced support in fully mechanized roadway, theoretical and experimental research, experimental prototype, modal analysis

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