摘要
为了研究掩护梁在煤岩冲击下的力学响应,使用有限元分析软件建立煤岩冲击掩护梁的动力学模型进行碰撞仿真,研究在不同形状、不同速度煤岩颗粒冲击下掩护梁碰撞力学特性。其结果可为通过振动响应原理来实现放顶煤的煤岩界面识别提供参考。
In order to study the mechanical response of shield beam under the impact of coal and rock,the dynamic model of coal and rock impacting shield beam was established to carry out the collision simulation by using finite element analysis software. The impact characteristics of shield beam under different shapes and impact velocities of coal and rock particles were researched. The results can provide reference for the identification of coal and rock interface of top coal caving by means of vibration response principle.
作者
李冉
高魁东
戴汉政
Li Ran;Gao Kuidong;Dai Hanzheng(College of Mechanical and Electronic Engineering,Shandong University of Science and Technology,Qingdao 266590,China)
出处
《煤矿机械》
北大核心
2019年第11期72-75,共4页
Coal Mine Machinery
基金
国家自然科学基金项目（51674155）
教育部创新团队发展计划（Grant No.IRT_16R45）
山东省重点研发计划（2018GGX103027）
青岛市源头创新项目（18-2-2-20-jch)
关键词
煤岩识别
碰撞冲击
动力学响应
coal and rock recognition
impact
dynamic response
