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Now showing items 11-20 of 39
Toward robust active semantic SLAM via Max-Mixtures
(Massachusetts Institute of Technology, 2020)
In a step towards the level of autonomy seen in humans, this work attempts to emulate a high level and low level approach to world representation and short term adaptation. Specifically, this work demonstrates an implementation ...
New approaches to the integration of organizational maintenance and failure data during submarine maintenance planning
(Massachusetts Institute of Technology, 2019)
Planning for maintenance periods for U.S. Navy submarines is difficult due to schedule and cost constraints, operating cycles, and logistical concerns. Organizational maintenance and failure data is vital to understanding ...
Design and assessment of a super high speed, hybrid hydrofoil/SWATH crew boat
(Massachusetts Institute of Technology, 2014)
This thesis presents the preliminary design and assessment of Wavecutter, an innovative super high speed, hybrid hydrofoil/SWATH crew boat. The intended mission of the vessel is the very-fast transportation of crew and ...
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 ...
Multi-attribute tradespace exploration for US Navy surface ship survivability: a framework for balancing capability, survivability, and affordability
(Massachusetts Institute of Technology, 2016)
In a political environment of austerity, the importance of understanding the design tradeoffs for new naval ship concept designs cannot be understated. A combination of a tightened shipbuilding budget, large high-priority ...
Design and testing of a pan-tilt mechanism for severe environments
(Massachusetts Institute of Technology, 2016)
U.S. Navy ships have non-rotating radar and electronic warfare devices installed, which are often supported and trained by two-axis gimbals. In current shipboard solutions the payloads are often placed on a platform above ...
Design and numerical analysis of an unconventional surface-piercing propeller for improved performance at low and high speeds
(Massachusetts Institute of Technology, 2017)
Traditional propellers operate fully submerged, with cavitation limited as much as possible in order to minimize its disruptive and damaging consequences. Conversely, supercavitating propellers operate in an encompassing ...
Intent-aware collision avoidance for autonomous marine vehicles
(Massachusetts Institute of Technology, 2017)
Applications of autonomous marine vehicles in dynamic and uncertain environments continuously grow as research unveils new enabling technology and academic, commercial, and government entities pursue new marine autonomy ...
Examination of hull forms for an Offshore Nuclear Plant
(Massachusetts Institute of Technology, 2017)
The Nuclear Science and Engineering Department at MIT has a concept design for an Offshore Nuclear Plant (ONP). This project highlights the advantages of the offshore location by reducing the risk of natural disasters and ...
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 ...