隧道式压气机工作轮多场耦合强度分析  

Multi physical field coupling strength analysis of tunnel compressor working impeller

作　　者：黄仕豪 续彦芳 黄若[2] 郭文杰 Huang Shihao;Xu Yanfang;Huang Ruo;Guo Wenjie(School of Energy and Power Engineering, North University of China, Shanxi Taiyuan, 030051, China;School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China)

机构地区：[1]中北大学能源动力工程学院,山西太原030051 [2]北京理工大学机械与车辆学院,北京100081

出　　处：《机械设计与制造工程》2021年第4期1-7,共7页Machine Design and Manufacturing Engineering

摘　　要：为了对隧道轮的强度进行研究,提出了压气机隧道轮应力的计算方法并建立了压气机隧道轮三维实体模型,在ANSYS Workbench软件中建立多场耦合计算平台,分析流体压力和温度对隧道轮应力大小及分布的影响,获得了考虑不同载荷状态时隧道轮的最大应力以及变形,验证了离心载荷、气动载荷和热载荷共同作用下隧道轮最大工作转速时强度的可靠性;同时通过计算获得了隧道轮在离心载荷、气动载荷和热应载荷共同作用下的极限转速与低周疲劳临界转速,可为隧道式压气机最高转速的确定提供参考。The strength of tunnel-type impeller is studied,the calculation process of tunnel-type impeller stress is proposed,and the calculation results are analyzed.A three-dimensional solid model of tunnel-type compressor impeller is established,and a multi-physical field coupling calculation platform is established in Ansys Workbench software to analyze the influence of fluid pressure and temperature on the stress size and distribution of tunnel-type impeller.The maximum stress and deformation of the tunnel-type impeller under different load conditions are obtained,and the reliability of the strength of the tunnel-type impeller at the maximum working speed under the combined action of centrifugal load,aerodynamic load and thermal load is verified.At the same time,the ultimate speed and low cycle fatigue critical speed of the tunnel-type impeller coupling centrifugal load,aerodynamic load and thermal load are obtained by calculation.It provides a reference of presetting the maximum speed of the tunnel-type compressor.

关 键 词：离心式压气机 隧道轮 多物理场耦合 强度 

分 类 号：TK402[动力工程及工程热物理—动力机械及工程]