标题:Effect of cracked blade distribution on strength of centrifugal impeller
作者:Cheng, Gang; Li, Jianfeng; Wang, Weiqiang; Sun, Jie
通讯作者:Li, J F
作者机构:[Cheng, Gang; Li, Jianfeng; Wang, Weiqiang; Sun, Jie] Shandong Univ, Sch Mech Engn, Key Lab High Efficiency & Clean Mech Mfg, Jinan 250061, Peoples R 更多
会议名称:3rd International Conference on Applied Mechanics, Materials and Manufacturing (ICAMMM 2013)
会议日期:AUG 24-25, 2013
来源:APPLIED MATERIALS AND TECHNOLOGIES FOR MODERN MANUFACTURING, PTS 1-4
出版年:2013
卷:423-426
页码:1884-1888
DOI:10.4028/www.scientific.net/AMM.423-426.1884
关键词:Centrifugal impeller; Stress analysis; Cracked blade; Finite element; method
摘要:In this paper, the finite element analysis is made to the structure of the impeller, a finite element model of a impeller with cracks was established. This paper presents results of the stress analysis of the compressor blade subjected to centrifugal force and aerodynamic equilibrium pressure. A nonlinear finite element method was utilized to determine the stress state of the blades. In this analysis, the numerical models without defects and also with cracks were defined. The simulation results showed that high stresses occurred in the areas where the cracks initiated under both centrifugal force and aerodynamic equilibrium pressure. The distribution of two cracked blades can greatly influence the stress level of the impeller; when two cracked blades locate in the adjacent positions, the increasing value of stress is minimum. When the two cracked blades separated by 150 degrees, the increasing value of stress is maximum. It provides a basis for strength calculation of the impeller.
收录类别:CPCI-S;EI;SCOPUS
资源类型:会议论文;期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84886294080&doi=10.4028%2fwww.scientific.net%2fAMM.423-426.1884&partnerID=40&md5=96a2f87b5f3e50612eaacc89837558e1
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