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.
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)
关键词
超静定结构
振动筛
动态特性
有限元
statically indeterminate structure
vibrating screen
dynamic characteristics
finite element
