NDLI: Estimation of static deflection under operational conditions for blade health monitoring

Content Provider	IEEE Xplore Digital Library
Author	Rajagopalan, V. Behera, A. Bhattacharya, A. Prabhu, R. Badami, V.
Copyright Year	2012
Description	Author affiliation: GE Global Research Center, Bangalore, India (Rajagopalan, V.; Behera, A.; Bhattacharya, A.; Prabhu, R.) \|\| Advanced Controls - ATO, GE Energy, Schenectady, USA (Badami, V.)
Abstract	Reliability and availability of gas turbines are critical to industry as they are used in a variety of applications. It is important to determine the health of these complex systems in near-real time and detect failures as early as possible. Cracks in compressor blades, used in gas turbines, if not detected early, could lead to catastrophic failures that would result in increased costs and extended outages. These cracks tend to induce changes in the static deflection of the blade. By tracking the changes in static deflection, it is possible to determine whether a blade is cracked or not. However, the static deflection of the blade, under field conditions, is also affected by operational parameters of the gas turbine. Therefore, estimating static deflection under field conditions and isolating the effects of crack from that of operational parameters is a significant task. This paper describes an algorithm for the estimation of static deflection under field conditions. It discusses some of the challenges involved and possible solutions for mitigating them. This algorithm can be used in conjunction with a crack propagation model to determine crack size in real-time.
Starting Page	1
Ending Page	6
File Size	1759215
Page Count	6
File Format	PDF
ISBN	9781457719097
ISSN	21665656
e-ISBN	9781457719110
e-ISBN	9781457719103
DOI	10.1109/PHM.2012.6228892
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-05-23
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Vibrations Compressor Blade Health Monitoring (BHM) Noise Energy measurement Rotor Blade Failures Static Deflection Robustness Monitoring Blade Crack Detection
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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