STUDY ON MECHANICAL CHARACTERISTICS AND VIBRATION CHARACTERISTICS OF TEMPORARY SUPPORT EQUIPMENT IN FULLY MECHANIZED MINING TUNNEL

LU JinNan; XIE Miao; MAO Jun

doi:10.16579/j.issn.1001.9669.2016.03.002

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STUDY ON MECHANICAL CHARACTERISTICS AND VIBRATION CHARACTERISTICS OF TEMPORARY SUPPORT EQUIPMENT IN FULLY MECHANIZED MINING TUNNEL

更新时间：2022-09-22

- STUDY ON MECHANICAL CHARACTERISTICS AND VIBRATION CHARACTERISTICS OF TEMPORARY SUPPORT EQUIPMENT IN FULLY MECHANIZED MINING TUNNEL
- Journal of Mechanical Strength Vol. 38, Issue 3, Pages: 435-441(2016)
- 作者机构：
  
  1. 辽宁工程技术大学机械工程学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2016.03.002
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LU JinNan, XIE Miao, MAO Jun. STUDY ON MECHANICAL CHARACTERISTICS AND VIBRATION CHARACTERISTICS OF TEMPORARY SUPPORT EQUIPMENT IN FULLY MECHANIZED MINING TUNNEL. [J]. 38(3):435-441(2016)
DOI：

LU JinNan, XIE Miao, MAO Jun. STUDY ON MECHANICAL CHARACTERISTICS AND VIBRATION CHARACTERISTICS OF TEMPORARY SUPPORT EQUIPMENT IN FULLY MECHANIZED MINING TUNNEL. [J]. 38(3):435-441(2016) DOI： 10.16579/j.issn.1001.9669.2016.03.002.

摘要

超前支护装备主要由两组可互相推移的框架组成,属于综掘巷道顶板临时支护的一种。为提高超前支护装备的稳定性、避免共振的发生,在分析超前支护装备工作原理的基础上,提出超前支护单组支撑状态的力学模型,采用拉格朗日方法和广义空间坐标系原理,建立超前支护装备的动力学数学模型和状态空间模型。以劳斯-赫尔维茨判据作为其动态稳定性判断条件,参考煤矿井下常用激扰力数学模型,结合Matlab和现代控制理论对超前支护单组支撑组的振动特性进行仿真,得出系统动态响应。最后,利用超前支护装备实验样机和振动测试系统,对超前支护装备进行模态分析,研究结果表明:超前支护装备易发生共振的频率范围约42.353 Hz~42.994 Hz。

Abstract

Advanced support equipment is mainly composed of two sets of frames which can be passed by each other,and it is belong to fully mechanized mining roadway roof temporary support equipment. In order to improve the stability and avoid the resonance of the advanced support equipment,based on the analysis of the working principle of the advanced support equipment,proposed the mechanical model of the support system,establish the dynamic mathematical model and the state space model of the advanced support equipment using the Lagrange method and the generalized space coordinate system. Using the Routh Hurwitz criterion as its dynamic stability judgment conditions,refer to the disturbance force mathematical model of commonly used in coal mine,combined with MATLAB and modern control theory,the vibration characteristics of the single support group of the advanced support equipment are simulated,and obtain the system dynamic response. At last,carry out modal analysis using experimental prototype and vibration testing system of advanced support equipment. The research results show that the frequency range of the easy to occur resonance is about 42. 353-42. 994 Hz.

关键词

超前支护装备稳定性状态空间模态分析

Keywords

Advanced support equipmentStabilityState spaceModal analysis

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