标题:Effect of cracked blade distribution on vibration characteristics 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, Key Lab High Efficiency & Clean Mech Manufacture, Sch Mech Engn, Jinan 250061, Pe 更多
会议名称:2nd International Conference on Frontiers of Mechanical Engineering and Materials Engineering (MEME 2013)
会议日期:OCT 12-13, 2013
来源:FRONTIERS OF MECHANICAL ENGINEERING AND MATERIALS ENGINEERING II, PTS 1 AND 2
出版年:2014
卷:457-458
页码:556-559
DOI:10.4028/www.scientific.net/AMM.457-458.556
关键词:Centrifugal impeller; Modal analysis; Cracked blade; Finite element; method
摘要:In this paper, the finite element analysis is made to the modal analysis of the impeller, a finite element model of a impeller with cracks was established. This paper presents results of the modal of the compressor blade subjected to centrifugal force and aerodynamic equilibrium pressure. In this analysis, the numerical models without defects and also with cracks were defined. The simulation results showed that the centrifugal force due to rotational speed can greatly influence the frequency of the impeller. The distribution of two cracked blades effect the natural frequence of the impeller. When two cracked blades locate in the interval position, the increasing value of frequence is maximum. When the two cracked blades interval 150 degrees, the increasing value of frequence is minimum. It provides a basis for modal 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-s2.0-84887560955&doi=10.4028%2fwww.scientific.net%2fAMM.457-458.556&partnerID=40&md5=3e1fe92ad9d789bfecb1fa4a81a66cdc
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