Douglas E. Adams, PhD
Associate Professor of Mechanical Engineering
Ray W. Herrick Laboratories
School of Mechanical Engineering
West Lafayette, IN 47907-1077
Telephone: (765) 496-6033
Current Research Interests:
Nonlinear dynamic system characterization and
- Nonlinear dynamics are pervasive in engineered systems.
The goal of this research is to develop more efficient and
accurate methods for characterizing and identifying nonlinearity.
"Characterization" involves detection,
classification, and location of nonlinearities, whereas
"identification" is a process
in which data is acquired and processed, models
are selected, and then parameters in the models are estimated.
High-fidelity models for systems as diverse and complicated
as aircraft, ground vehicles, and rotating systems can only be
developed using this kind of dual analytical-experimental approach.
Noise and vibration control through system-based
- Noise and vibration are a major concern to
manufacturers of civilian products like automobiles. Squeak & rattle,
ride dynamics, and other areas of interest are being explored. Engineering
designs are being adjusted to enable interactions within mechanical systems
to mitigate unwanted noise or vibration.
A system-based modeling and analysis approach is the framework for this
Structural health monitoring and prognostics
The safety and performance of all civilian and military structural
materials and systems deteriorate with
time. Because current manual inspection and maintenance
scheduling procedures are time consuming, costly, and insensitive to
small variations in structural health, there is an urgent
economic and technological need to deploy automated structural
diagnostic instrumentation for continuous evaluation of structural
integrity and reliability. Many methods for loads identification
and damage identification along with structural life prediction
are being researched and implemented.