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DALIAN UNIVERSITY OF TECHNOLOGY Login 中文
Liu Haitao

Associate Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates


Main positions:Associate Professor
Gender:Male
Alma Mater:Dalian University of Technology
Degree:Doctoral Degree
School/Department:Dalian University of Technology
Discipline:Power Machinery and Engineering. Fluid Machinery and Engineering
Business Address:Ganjingzi District of Dalian City, Liaoning Province, linggong Road 2
Contact Information:htliu@dlutedu.cn
E-Mail:htliu@dlut.edu.cn
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Current position: Home >> Scientific Research >> Paper Publications

半开式离心叶轮气动阻尼的影响规律研究

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Date of Publication:2021-01-01

Journal:风机技术

Volume:63

Issue:01

Page Number:12-18

Abstract:离心压缩机半开式叶轮的阻尼是影响叶轮振动应力水平的重要因素,主要包括材料阻尼和气动阻尼。其中,气动阻尼的准确计算是叶轮动应力分析的前提。本文通过流固弱耦合方法研究了压缩机运行工况以及叶片振幅对气动阻尼的影响,并对影响规律进行了理论分析。研究结果表明,进口温度一定时,叶片气动阻尼比随进口流量的增大而增大;进口质量流量一定时,气动阻尼比随进口温度的减小而增大;对同一工况,气动阻尼比基本与振幅无关。研究结果对叶轮结构在实际运行工况条件下的强度校核具有重要的参考意义。

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