基于ANSYS的尾气透平动叶片振动特性分析  

ANALYSIS ON THE VIBRATION CHARACTERISTIC OF TAIL GAS TURBINE BLADES BASED ON ANSYS

作　　者：张家灿 冀江 

机构地区：[1]中国石化工程建设有限公司,北京100101

出　　处：《石油化工设备技术》2017年第5期1-4,共4页Petrochemical Equipment Technology

摘　　要：文章利用ANSYS软件对新开发的尾气透平动叶片进行叶片三维实体建模及模态分析,通过计算得到叶片在静止状态下的固有静频率和工作条件下的动频率,并经过计算结果分析转速和温度对动叶片自振固有频率的影响。通过ANSYS软件的后处理功能获得叶片的前6阶振型,为后续的叶片故障分析提供了理论研究基础。最后通过绘制Campbell图对叶片进行共振分析,为尾气透平动叶片的设计提供可靠性验证。In this paper,the 3D solid modeling and modal analysis of the rotary blades of the newly developed tail gas turbine are made by using ANSYS software.Through calculation,the static natural frequency in static state of the blades and the dynamic natural frequency under working conditions are obtained.And the paper analyzes the impacts of rotational speed and temperature on the natural vibration frequency according to the calculation results.Through the post processing function of ANSYS,the first six order modes of the blades are obtained,which provides a theoretical basis for the fault analysis of blades.Finally,the paper makes resonance analysis by drawing Campell diagram and this provides reliability verification for the design of rotary blades in tail gas turbine.

关 键 词：尾气透平 动叶片 ANSYS 自振固有频率 共振 

分 类 号：TH113.1[机械工程—机械设计及理论]