超静定结构振动筛的设计与动态特性分析  

Design and dynamic characteristics analysis of vibrating screen with statically indeterminate structure

作　　者：闫俊霞[1] 刘初升[1] 

机构地区：[1]中国矿业大学机电工程学院,江苏徐州221116

出　　处：《机械研究与应用》2011年第1期22-23,共2页Mechanical Research & Application

基　　金：国家自然科学基金资助项目(50574091;50774084);江苏省研究生创新基金资助项目(CX09B_111Z)

摘　　要：运用有限元法分析了超静定结构振动筛的固有频率、固有振型及动力响应,通过分析得出超静定结构增加了振动筛的强度,提高了弯扭变形的固有频率,并有效避开工作频率,避免了共振的发生。The vibrating screen′s dynamic characteristics of statically indeterminate structure and calculated natural frequency,natural vibration mode and dynamic response are analyzed based on finite element technology.The results show that,by means of the adoption of statically indeterminate structure,the vibrating screen′s structural strength is increased and the natural frequency of bending and twisting deformation is improved.The natural frequency is far from work frequency which means the structure can avoid resonance effectively.

关 键 词：超静定结构 振动筛 动态特性 有限元 

分 类 号：TD452[矿业工程—矿山机电]