东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2014, Vol. 35 ›› Issue (1): 93-96.DOI: 10.12068/j.issn.1005-3026.2014.01.022

• 机械工程 • 上一篇    下一篇

液压支架随机载荷历程及MonteCarlo法的应用

马园园，谢里阳，林文强   

  1. (东北大学 机械工程与自动化学院， 辽宁 沈阳110819)
  • 收稿日期:2013-05-10 修回日期:2013-05-10 出版日期:2014-01-15 发布日期:2013-07-09
  • 通讯作者: 马园园
  • 作者简介:马园园(1982-)，女，辽宁锦州人，东北大学博士研究生；谢里阳(1962-)，男，安徽岳西人，东北大学教授，博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(51175072).

Random Load History of Hydraulic Support and Application of Monte Carlo Method

MA Yuanyuan， XIE Liyang， LIN Wenqiang   

  1. School of Mechanical Engineering & Automation， Northeastern University， Shenyang 110819， China.
  • Received:2013-05-10 Revised:2013-05-10 Online:2014-01-15 Published:2013-07-09
  • Contact: MA Yuanyuan
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摘要： 为较准确地预测液压支架的使用寿命，利用支架与围岩的相互作用关系，通过围岩的运动规律，分析出了液压支架外载荷的来源及特征.应用MonteCarlo法进行随机抽样获取载荷谱，统计得到其载荷幅值服从形状参数为131，尺度参数为21696的威布尔分布，而载荷均值服从均值为1200N·m，标准差为5196N·m的正态分布，进而模拟出了液压支架在井下真实的载荷历程.为进一步研究和编制程序载荷谱，进行实验室模拟试验和疲劳寿命预测做好准备.

关键词: 液压支架, 采场围岩, 载荷历程, 随机性, MonteCarlo法

Abstract: To accurately predict the service life of hydraulic support， the origin and characteristics of the external load of the hydraulic support were analyzed using the interaction relationship between surrounding rock and hydraulic support based on the movement of surrounding rock. Monte Carlo method is used to obtain the load spectrum. The statistics results show that the load amplitude and the load average obey Weibull distribution W(131， 21696) and normal distribution N(1200， 5196)， respectively. Then， the actual load history of hydraulic support at underground was simulated. The work prepares for further research and compiling load spectrum so as to make the life prediction and simulation test indoor.

Key words: hydraulic support, filed wall rock, load history, randomness, Monte Carlo method

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