矿用带式转载机振动主动控制  

Active Vibration Control of Belt Loader in Coal Mine

作　　者：黄良[1] 王宇红[2] 

机构地区：[1]燕山大学,河北秦皇岛066004 [2]秦皇岛职业技术学院,河北秦皇岛066100

出　　处：《煤矿机械》2013年第7期99-101,共3页Coal Mine Machinery

基　　金：河北省教育厅科学研究计划河北省高等学校自然科学研究青年基金项目(Q2012013);燕山大学博士基金项目(B729)

摘　　要：对煤矿用带式转载机的振动特性进行分析,得到其固有振型及振动模态,并以压电陶瓷为驱动元件,采用线性负反馈对结构的振动模态进行实时控制。仿真结果表明,结构的振动响应以低频分量为主,且通过线性负反馈施加主动控制后,能有效改善机器的阻尼和固有频率,使结构的振动幅度得到快速有效的抑制,避免共振的发生。The natural vibration shapes and modes of a belt loader in coal mine are obtained through the analysis on the vibration characteristic of the loader, and the real-time control on the vibration modes of the structure is conducted through the linear negative feedback with the piezoelectric patches as actuators. The simulate results show that the main part of the vibration response of the structure is low-frequency component; the damping and natural frequencies can be effectively improved after the active control is applied through linear negative feedback, so the vibration amplitude of the structure can be suppressed rapidly and the resonance is avoided.

关 键 词：带式转载机 振动模态 主动控制 振动抑制 

分 类 号：TD421.7[矿业工程—矿山机电]