中国科学院软件研究所机构知识库
Advanced  
ISCAS OpenIR  > 软件所图书馆  > 期刊论文
题名:
Effects of multistage coupling and disk flexibility on mistuned bladed disk dynamics
作者: BLADH R. ; CASTANIER M. P. ; PIERRE C.
关键词: Sensitivity analysis ; Finite element method ; Numerical method ; Modeling ; Defect ; Rotating disk ; Multistage ; Multistage apparatus ; Turbine blade ; Gas turbine ; Mode coupling ; Natural frequency ; Forced vibration
刊名: Journal of engineering for gas turbines and power
发表日期: 2003
卷: 125, 期:1, 页:121-130
收录类别: 其他
合作性质: 其它
摘要: The effects ofdisk flexibility and multistage coupling on the dynamics of bladed disks with and without blade mistuning are investigated. Both free and forced responses are examined using finite element representations of example single and two-stage rotor models. The reported work demonstrates the importance of proper treatment of interstage (stage-to-stage) boundaries in order to yield adequate capture of disk-blade modal interaction in eigenfrequency veering regions. The modified disk-blade modal interactions resulting from interstage-coupling-induced changes in disk flexibility are found to have a significant impact on (a) tuned responses due to excitations passing through eigenfrequency veering regions, and (b) a design's sensitivity to blade mistuning. Hence, the findings in this paper suggest that multistage analyses may be required when excitations are expected to fall in or near eigenfrequency veering regions or when the sensitivity to blade mistuning is to be accounted for Conversely, the observed sensitivity to disk flexibility also indicates that the severity of unfavorable structural interblade coupling may be reduced significantly by redesigning the disk(s) and stage-to-stage connectivity. The relatively drastic effects of such modifications illustrated in this work indicate that the design modifications required to alleviate veering-related response problems may be less comprehensive than what might have been expected.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iscas.ac.cn/handle/311060/1338
Appears in Collections:软件所图书馆_期刊论文

Files in This Item:
File Name/ File Size Content Type Version Access License
+BJ01152124.pdf(272KB)----限制开放 联系获取全文

Recommended Citation:
BLADH R.,CASTANIER M. P.,PIERRE C.. Effects of multistage coupling and disk flexibility on mistuned bladed disk dynamics[J]. Journal of engineering for gas turbines and power,2003-01-01,125(1):121-130.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[BLADH R.]'s Articles
[CASTANIER M. P.]'s Articles
[PIERRE C.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[BLADH R.]‘s Articles
[CASTANIER M. P.]‘s Articles
[PIERRE C.]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院软件研究所 - Feedback
Powered by CSpace