The Ohio State University

Abstract
Health monitoring techniques are routinely applied to assess loading, damage, and degraded performance in a wide range of engineered systems including aircraft, ground vehicles, and machinery. For example, in the aircraft industry, gas turbine engines are no longer sold but instead leased according to performance; therefore, manufacturers monitor engines using condition-based maintenance to diagnose and correct faults to reduce costly downtime. In the defense sector, ground vehicles and other weapon systems are aging due to high usage leading to high supportability costs, which can be managed if condition-based maintenance is used to service these vehicles. Several key issues are preventing condition-based maintenance from being implemented even more widely. For instance, large numbers of sensors cannot be used in weight or power sensitive applications such as rotorcraft; therefore, health monitoring methods that utilize a few sensors along with physical models are needed for loads and damage identification. Several critical technical issues are addressed in this seminar in a series of applications ranging from automotive suspensions to missile casings. A general overview of health monitoring techniques that enable condition-based maintenance is also given.

Biographical Sketch
Dr. Douglas Adams is an Associate Professor of Mechanical Engineering at Purdue University. He conducts research in Health Monitoring for Condition-Based Maintenance using techniques in vibrations, acoustics, and nonlinear dynamics. He has graduated 18 MS and PhD students who have published over 140 papers with Dr. Adams. He has also recently published a textbook on Health Monitoring of Structures. He has received over a dozen awards for research and teaching including a Presidential Early Career Award, Structural Health Monitoring Person of the Year Award, and the Murphy Award for Excellence in Teaching. He is also a fellow of the Purdue Teaching Academy and was recently appointed a University Faculty Scholar for his scholarship. Dr. Adams has delivered dozens of short courses to industry and federal agencies in the area of health monitoring and structural dynamics. Many of his research discoveries in health monitoring have also been commercialized for condition-based maintenance.

Hosted by Professor Ahmed Soliman, 292-0120, soliman.1@osu.edu
For information on ME 888 seminars contact Professor Walter Lempert at 292-2736 or lempert.1@osu.edu.