Search
Now showing items 1-9 of 9
Nondestructive evaluation of composite rods using ultrasonic wave propagation
(Massachusetts Institute of Technology, 2015)
Nondestructive Evaluation (NDE) is a branch of applied science that is concerned with assessing the properties and serviceability of materials and structures without causing collateral damage or depreciation. This study ...
Evaluation by simulation of an acoustic array composed of multiple autonomous vehicles
(Massachusetts Institute of Technology, 2015)
Ship-towed arrays have been integral to Navy combatant operations for many decades. The continual advancement of towed array technology has been continually driven by the need for high sensitivity, low self-noise, and ...
Hydrodynamic analysis of the offshore floating nuclear power plant
(Massachusetts Institute of Technology, 2015)
Hydrodynamic analysis of two models of the Offshore Floating Nuclear Plant [91 was conducted. The OFNP-300 and the OFNP-1100 were both exposed to computer simulated sea states in the computer program OrcaFlex: first to ...
Material characterization of lithium ion batteries for crash safety
(Massachusetts Institute of Technology, 2015)
The safety of lithium-ion batteries is extremely important due to their widespread use in consumer products such as laptops and cell phones. Several cases of thermal runaway in lithium ion batteries that resulted in fires ...
Numerical and experimental investigation of the effect of an inverted bow on the hydrodynamic performance of Navy combatant hull forms
(Massachusetts Institute of Technology, 2015)
In this paper we investigate the resistance and seakeeping effects of an inverted bow by comparing the motions of an existing combatant hull, the Oliver Hazard Perry class frigate (FFG-7), with a modified version of the ...
Model testing and computational analysis of a high speed planing hull with cambered planing surface and surface piercing hydrofoils
(Massachusetts Institute of Technology, 2015)
As part of a 2014 thesis, the MIT Innovative Ship Laboratory (iShip) designed a high-speed planing hull form that was based on the Model Variant 5631 developed at the US Navy's David Taylor Model Basin [7] [3] [5]. This ...
Naval applications of enhanced temperature, vibration and power monitoring
(Massachusetts Institute of Technology, 2015)
Navy ships require reliable information regarding their power and mechanical systems in order to perform their mission effectively. While today's shipboard systems are quite sophisticated, there are areas for improvement ...
Design and analysis of US Navy shipbuilding contract architecture
(Massachusetts Institute of Technology, 2015)
Contracting for US Navy ship procurement is complex due several factors such as budgetary and political concerns, sole or near sole source environments, and long lead-time construction. In the current climate of shrinking ...
Hydrophobic coatings for film boiling based drag reduction on a torpedo model
(Massachusetts Institute of Technology, 2015)
Previous research has shown that porous, hydrophobic surfaces exhibit a dramatic reduction in critical heat flux (CHF), the amount of heat over a surface area required to initiate film boiling. Film boiling is characterized ...