Fundamentals of Prognostics and Health Management (PHM) for Aerospace Systems C2009
Topics: Quality, Safety & Maintenance
With the world aircraft fleets growing exponentially, the maintenance burden on airlines is also becoming overwhelming. One way to counter this is by making systems “smarter” so that they can self-diagnose themselves, help with troubleshooting, and estimate remaining useful life. Prognostics and Health Management (PHM) is the engineering discipline that forms the basis for developing such smart systems. In this course, the basic tenets of PHM will be taught with an emphasis on the practical application of PHM to aerospace systems. This will include the concept of “health-readiness” and how it can be incorporated using simple built-in-tests to advanced model-based diagnostics and prognostics functions. By delivering predictive maintenance and continuous remaining useful life estimates, these systems can reduce aftermarket costs by 25% or more and increase operational availability by 15% or more. This has been proven over many years of experience in the aerospace sector. However, developing these systems is not easy because they cut across many different disciplines and subsystems. At the end of this course, the participant will be fully knowledgeable about the high-level aspects of how PHM systems are designed and implemented. How they are tested, and how they can be certified. It will also emphasize the critical aspect of systems engineering and why that is crucial to developing viable PHM systems.
Learning Objectives
By attending this seminar, you will be able to:
- Understand the fundamental application of PHM systems
- Recognize the concept of “health-readiness” and how it can be incorporated
- Summarize why PHM design and development can reduce aftermarket cost
- Explain how PHM systems may be designed, implemented, tested and certified
Who Should Attend
This course is designed for engineers in the aviation industry who would benefit from learning how to apply principles associated with systems engineering (SE) and design, verification and validation, model-based design and analysis, and prognostic health management (PHM).
Prerequisites
B. Eng.
- Module 1: Introduction
- Overview
- What is PHM and how it is different from other engineering disciplines
- Why is a systems engineering approach the right approach
- Examples of the use of PHM systems
- Module 2: Requirements for developing PHM systems
- Methodology
- The importance of identifying the right stakeholders
- Cost benefit analysis
- Standard practices for developing requirements
- Module 3: Design of PHM systems
- Definitions
- Various design practices for PHM
- Model-based vs. empirical methods
- Analytical methods for diagnostics and prognostics
- Module 4: PHM systems in standardized maintenance practices
- How are maintenance procedures specified
- The critical partnership between the regulators and the industry
- MRB, the IMRBPB, and MPIG
- The MSG3 process and issue papers to foster change
- Incorporating PHM in standard maintenance practices
- Module 5: Standards in PHM
- History of standards in SAE and other organizations
- Current state
- Future in the digital world
- Module 6: Examples
- Diagnostics
- Oil debris monitoring
- Gas turbine diagnostics
- Electrical systems
- Prognostics
- Usage based lifing for life limited parts
- Battery health
- Brake health
- Diagnostics
- Module 7: Conclusions
- Advanced topics in PHM
- Future of PHM in the aerospace world
- Advanced topics in PHM
Ravi Rajamani
Dr. Ravi Rajamani, who works currently as a consultant, has in-depth knowledge and experience in aerospace propulsion and energy; data analytics and model-based methods for controls; and diagnostics and prognostics. Author of the book Electric Flight Technology: The Unfolding of a New Future, Dr. Rajamani has published two other books and many journal articles, conference papers and patents. Prior to his current job, he worked at Meggitt, United Technologies Corporation (UTC) and General Electric. He has PhD from the University of Minnesota, an MBA from the University of Connecticut and a BTech from IITD. He is actively involved in the PHM Society, SAE International technical committees, and is a visiting professor of Aerospace, Transport and Manufacturing at Cranfield University. He is the editor-in-chief of the SAE International Aerospace Journal, is a fellow of SAE, and is the recipient of the Forest R. McFarland Award.
