The following general outline describes content of this training / workshop program. The specific training modules and length (from one to three days) will be customized to meet the needs of clients. This training may be conducted on site at the clients' facilities or at a hotel and place of choice by the client. This training will be conducted by a team of highly qualified and experienced engineers with prior OEM experience and private consulting with a cumulative experience of over 70 years.


1) GT Rotor arrangements, general configurations and design attributes
2) Rotor materials, alloys, general properties and service degradation behavior
3) Material property requirements & testing to assess aging rotors and examples from case studies
4) Miniature sample removal (using proprietary methods) from turbine discs and testing for critical material property assessment
5) Finite element analysis of Rotor structural stress and temperature distributions
6) Rotor integrity assessment, lifing criteria and life assessment methods for steady state (creep limited) and cyclic duty (L0w-cycle fatigue & crack growth) operations
7) Premature cracking problems encountered in several model turbines. Case history, root cause identification and available mitigation solutions
8) Rotor life assessment & advanced outage planning, organizing and team qualifications
9) Rotor NDE methods, qualifications, importance and requirements
10) Examples of previous life assessment - case studies [GE, Siemens (& Westinghouse), MHI and Alstom engines]
11) Impact on plant outage and reasonable life extension expectations. Interactive discussions and Q/A


At the completion of this training, the participant will know the answers to the following:

1. What is end of life for a turbine rotor and how is it established?
2. Is the life for compressor rotor different from turbine rotor ? If so, how?
3. What materials are used to manufacture the compressor and turbine discs and what unique properties are needed?
4. What are the degradation and life exhaustion mechanisms in a rotor - on the compressor and turbine side?
5. How does the stress and temperature affect the degradation and integrity of the rotor?
6. Engine operational parameters and duty cycle requirements needed to conduct the engineering analysis
7. How do the lives of rotors subjected to steady state and cyclic duty operations compare?
8. What are the critical steps to be followed in conducting a pragmatic engineering life assessment and extend the life of rotors?
9. What type of NDE methods should be used and at what locations of the rotors?
10. How to qualify the engineering team and NDE service providers?
11. What are issues to consider during the plant outage planning to perform proper rotor integrity and remaining life assessment?


Plant maintenance engineering and operational staff, plant managers, corporate engineering support staff, and engineering managers

Dr. Swami Swaminathan Ph.D, FASME
TurboMet International
Phone: (210) 520-9030