Fatigue life assessment of centrifugal compressor impeller based on FEA

Shujie Liu; Chi Liu; Yawei Hu; Sibo Gao; Yifan Wang; Hongchao Zhang

doi:10.1016/j.engfailanal.2015.11.035

Fatigue life assessment of centrifugal compressor impeller based on FEA

Shujie Liu, Chi Liu, Yawei Hu, Sibo Gao, Yifan Wang, Hongchao Zhang

Industrial Engineering

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

Abstract

Fatigue life assessment of centrifugal compressor impellers has been a critical issue in industrial practice and application. In this paper, both centrifugal load and aerodynamic load have been considered in the analysis of the impeller life using finite element analysis (FEA). The analysis showed the regions of stress concentration and the mean stress of the finite element at the maximum stress point. The S–N curve of the impeller is therefore fitted by a computational model. The model is proved to be reliable by comparing the computed results with the experimental data. Thereby the failure mechanism of the impeller can be expressed analytically and its reliability can be assessed online.

Original language	English
Pages (from-to)	383-390
Number of pages	8
Journal	Engineering Failure Analysis
Volume	60
DOIs	https://doi.org/10.1016/j.engfailanal.2015.11.035
State	Published - Feb 1 2016

Keywords

Compressor blades
Fatigue life
Impeller failures
S–N curves

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10.1016/j.engfailanal.2015.11.035

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title = "Fatigue life assessment of centrifugal compressor impeller based on FEA",

abstract = "Fatigue life assessment of centrifugal compressor impellers has been a critical issue in industrial practice and application. In this paper, both centrifugal load and aerodynamic load have been considered in the analysis of the impeller life using finite element analysis (FEA). The analysis showed the regions of stress concentration and the mean stress of the finite element at the maximum stress point. The S–N curve of the impeller is therefore fitted by a computational model. The model is proved to be reliable by comparing the computed results with the experimental data. Thereby the failure mechanism of the impeller can be expressed analytically and its reliability can be assessed online.",

keywords = "Compressor blades, Fatigue life, Impeller failures, S–N curves",

author = "Shujie Liu and Chi Liu and Yawei Hu and Sibo Gao and Yifan Wang and Hongchao Zhang",

note = "Funding Information: The authors gratefully acknowledge the financial support of National Natural Science Foundation of China ( 51205043 ), Basic Research and Development Plan of China (973 Program, No. 2011CB013401 and No. 2011CB013402 ), and Special Fundamental Research Funds for Central Universities of China (No. DUT14QY21 ). Also, thanks for the technical support from Professor Weiqiang Wang, et al., in Shangdong University, China. Publisher Copyright: {\textcopyright} 2015 Elsevier Inc.",

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doi = "10.1016/j.engfailanal.2015.11.035",

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T1 - Fatigue life assessment of centrifugal compressor impeller based on FEA

AU - Liu, Shujie

AU - Liu, Chi

AU - Hu, Yawei

AU - Gao, Sibo

AU - Wang, Yifan

AU - Zhang, Hongchao

N1 - Funding Information: The authors gratefully acknowledge the financial support of National Natural Science Foundation of China ( 51205043 ), Basic Research and Development Plan of China (973 Program, No. 2011CB013401 and No. 2011CB013402 ), and Special Fundamental Research Funds for Central Universities of China (No. DUT14QY21 ). Also, thanks for the technical support from Professor Weiqiang Wang, et al., in Shangdong University, China. Publisher Copyright: © 2015 Elsevier Inc.

PY - 2016/2/1

Y1 - 2016/2/1

N2 - Fatigue life assessment of centrifugal compressor impellers has been a critical issue in industrial practice and application. In this paper, both centrifugal load and aerodynamic load have been considered in the analysis of the impeller life using finite element analysis (FEA). The analysis showed the regions of stress concentration and the mean stress of the finite element at the maximum stress point. The S–N curve of the impeller is therefore fitted by a computational model. The model is proved to be reliable by comparing the computed results with the experimental data. Thereby the failure mechanism of the impeller can be expressed analytically and its reliability can be assessed online.

AB - Fatigue life assessment of centrifugal compressor impellers has been a critical issue in industrial practice and application. In this paper, both centrifugal load and aerodynamic load have been considered in the analysis of the impeller life using finite element analysis (FEA). The analysis showed the regions of stress concentration and the mean stress of the finite element at the maximum stress point. The S–N curve of the impeller is therefore fitted by a computational model. The model is proved to be reliable by comparing the computed results with the experimental data. Thereby the failure mechanism of the impeller can be expressed analytically and its reliability can be assessed online.

KW - Compressor blades

KW - Fatigue life

KW - Impeller failures

KW - S–N curves

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DO - 10.1016/j.engfailanal.2015.11.035

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SN - 1350-6307

VL - 60

SP - 383

EP - 390

JO - Engineering Failure Analysis

JF - Engineering Failure Analysis

ER -

Fatigue life assessment of centrifugal compressor impeller based on FEA

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Keywords

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