多台空冷风机工作状态桥架振动特性研究  

Research on Vibrational Characteristics of Fan Bridge Truss Under Multiple Air Cooling Fans Working Condition

作　　者：赵飞[1] 屈铁军[1] 

机构地区：[1]北方工业大学建筑工程学院,北京100144

出　　处：《北方工业大学学报》2012年第1期68-71,共4页Journal of North China University of Technology

基　　金：国家自然科学基金项目(50678001);北京市高等学术人才强教深化计划项目

摘　　要：建立了某大型空冷机组结构有限元模型,对其结构进行了模态分析及风机不同工况运行时桥架强迫振动响应分析.得出了真型结构自振特性和多台空冷风机工作状态桥架振动响应特性,为风机桥架设计提供了理论依据.A finite element model of the structures of a large air-cooling system is established. A modal analysis of the structure is carried out, and a forced vibrational response of the fan bridge truss under different working conditions of the system is also carried out. The analyses show the structure of dynamic characteristics including the free vibration of the fan system, and the effect of many air cooling fans in operation on dynamic response of fan bridge truss. This provides a theoretial basis for the research of the fan bridge truss.

关 键 词：空冷风机组 风机桥架 振动响应 

分 类 号：TU391[建筑科学—结构工程]