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Relationship of grain boundary structure and mechanical properties of Inconel 690
(Massachusetts Institute of Technology, 2009)
Stress corrosion cracking (SCC), failure due to environmentally assisted crack nucleation and propagation, is an important metallurgical problem with impact on current and future designs of ship structural components and ...
Impacts of reducing shipboard NOx̳ and SOx̳ emissions on vessel performance
(Massachusetts Institute of Technology, 2010)
The international maritime community has been experiencing tremendous pressures from environmental organizations to reduce the emissions footprint of their vessels. In the last decade, air emissions, including nitrogen ...
Updating MIT's cost estimation model for shipbuilding
(Massachusetts Institute of Technology, 2008)
This thesis project will update the MIT ship cost estimation model by combining the two existing models (the Basic Military Training School (BMTS) Cost Model and the MIT Math Model) in order to develop a program that can ...
Concept design of a long range AUV propulsion system with an onboard electrical generator
(Massachusetts Institute of Technology, 2012)
Automated Underwater Vehicle (AUV) Technology has come a long way in the past decade. Due to advances in batteries and telecommunications, unmanned underwater vehicles no longer require a tether to a mother ship for power, ...
Cost reduction of polar class vessels : structural optimization that includes production factors
(Massachusetts Institute of Technology, 2013)
The design of ship structures was normally optimized to reduce construction material and maintain adequate strength while adhering to a given classification society's rules. In the case of Polar Class vessels, where weight ...
Resource constrained scheduling problem at U.S. Naval Shipyards
(Massachusetts Institute of Technology, 2013)
Submarine repair schedules are some of the most complex schedules seen in project management. Repairs of a nuclear U.S. submarine are resource constrained since resources are divided among approximately thirty shops (e.g. ...
Hydrostatic and intact stability analysis for a surface ship
(Massachusetts Institute of Technology, 2010)
Ship's lines are designed such that they are fair. To the naval architect, fairness means that the lines exhibit a continuous second derivative. This is the definition of a spline. Before the advent of digital computers, ...
Plug repairs of marine glass fiber / vinyl ester laminates subjected to in-plane shear stress or in-plane bending moment
(Massachusetts Institute of Technology, 2010)
Glass fiber / vinyl ester composite laminates represent an important class of modem fiber composites being proposed or used in state-of-the-art shipbuilding. This thesis examined the effectiveness of chopped strand mat ...
An enhanced propeller design program based on propeller vortex lattice lifting line theory
(Massachusetts Institute of Technology, 2007)
A suite of propeller numerical design tools was developed in MATLAB®, a high-level technical computing language. The tools were based on the FORTRAN programs developed by Professor Justin Kerwin at MIT in 2001 and include ...
Analysis and experiments for contra-rotating propeller
(Massachusetts Institute of Technology, 2011)
Contra-rotating propellers have renewed interest from the naval architecture community, because of the recent development of electric propulsion drives and podded propulsors. Contrarotating propulsion systems have the ...