Selection of a Suitable Material and Failure Investigation on a Turbine Blade of Marine Gas Turbine Engine using Reverse Engineering and FEA Techniques
Naresh Gurajarapu, V. Naga Bhushana Rao, I. N. Niranjan Kumar
언어
영어(ENG)
URL
https://www.earticle.net/Article/A237125
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원문정보
초록
영어
Turbine blades are considered to be the heart of turbine and play a vital role in extracting energy from high temperature and high pressure gases. Without blades there would be no power and the slightest fault in blading would mean a reduction in efficiency and costly repairs. In this regard, an attempt has been made to analyze the failed marine gas turbine blade. Static structural and Steady state thermal analyses have been analyzed using ANSYS 14.5 to predict the probable conditions which leads blade failure. To investigate the causes of high pressure temperature (HPT) turbine blade failures, a turbine blade of 30 MW gas turbine engine intended for operation onboard ship has been considered for the analysis. Before failure, this gas turbine blade was operated for about 10000 hours while its service life was expected to be around 15000 hours. To improve the life time of a blade, prediction of failure criteria has been analyzed. In addition, a comparative analysis has also been made to determine the strength and suitability of a HPT blade made of Nickel based super alloy X under examination. This material has been compared with other two materials such as Nimonic alloy 80A and Inconel 625. Based on the results of comparative study, it is concluded that Nickel based super alloy X can be a suitable material for the manufacturing of gas turbine blades.
목차
Abstract 1. Introduction 2. Reverse Engineering 3. Literature Review 4. Modeling and Analysis 4.1. CATIA Modeling 4.2. FEA Technique 4.3. Material Properties 4.4. Boundary Conditions 4.5. Summary of Forces on Turbine Blade 4.6. Centrifugal Force for different Materials at Various Speeds 4.7 Meshing 5. Static Structural Analysis at max. Speed (9000 rpm) 6. Steady State Thermal Analysis 7. Results and Discussions 7.1. Results of Structural Analysis 7.2. Results of Thermal analysis 8. Conclusions References
키워드
Reverse EngineeringCATIAANSYSStatic Structural analysisSteady state thermal analysis
저자
Naresh Gurajarapu [ Research associate, Department of Marine Engineering, Andhra University, Visakhapatnam, India ]
V. Naga Bhushana Rao [ Department of Marine Engineering, Andhra University, Visakhapatnam, INDIA ]
I. N. Niranjan Kumar [ Professor, Department of Marine Engineering, Andhra University, Visakhapatnam, India ]
Corresponding Author
보안공학연구지원센터(IJUNESST) [Science & Engineering Research Support Center, Republic of Korea(IJUNESST)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of u- and e- Service, Science and Technology
간기
격월간
pISSN
2005-4246
수록기간
2008~2016
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of u- and e- Service, Science and Technology Vol.7 No.6