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Ultrasonic wave propagation in thick, layered composites containing degraded interfaces
(Massachusetts Institute of Technology, 2005)
The ultrasonic wave propagation of thick, layered composites containing degraded bonds is investigated. A theoretical one-dimensional model of three attenuative viscoelastic layers containing two imperfect interfaces is ...
Evaluation of non-intrusive monitoring for condition based maintenance applications on US Navy propulsion plants
(Massachusetts Institute of Technology, 2005)
The thesis explores the use of the Non-intrusive Load Monitor (NILM) in Condition Based Maintenance (CBM) applications on US Navy ships as part of the Office of Naval Research Electric Ship Integration (ESI) Initiative. ...
Optimal control theory applied to ship maneuvering in restricted waters
(Massachusetts Institute of Technology, 2005)
Ship drivers have long understood that powerful interaction forces exist when ships operate in close proximity to rigid boundaries or other vessels. Controlling the effects of these forces has been traditionally handled ...
Lubricant oil consumption effects on diesel exhaust ash emissions using a sulfur dioxide trace technique and thermogravimetry
(Massachusetts Institute of Technology, 2005)
A detailed experimental study was conducted targeting lubricant consumption effects on ,diesel exhaust ash levels using a model year 2002 5.9L diesel engine, high and low Sulfur commercial lubricants, and clean diesel ...
Diagnostic indicators for shipboard systems using non-intrusive load monitoring
(Massachusetts Institute of Technology, 2005)
Field studies have demonstrated that the Non-Intrusive Load monitor (NILM) can provide real-time indication of the condition of electro-mechanical systems on board naval vessels. Results from data collected from engineering ...
A strip theory approximation for wave forces on submerged vehicles in finite depth water
(Massachusetts Institute of Technology, 2005)
Autonomous Underwater Vehicles (AUV's) are becoming of increasing use in shallow waters for oceanographic data collection, coastal mapping, and military operations such as mine surveillance along enemy coastlines. Currently ...