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Now showing items 11-20 of 21
The Shipboard Automatic Watchstander (SAW) : utilization of Nonintrusive Load Monitoring for shipboard automation
(Massachusetts Institute of Technology, 2017)
This thesis presents results from operational testing of Nonintrusive Load Monitoring (NILM) systems aboard active US Coast Guard units. Monitoring the ships' electrical system from centralized power distribution points, ...
Hydrodynamics of high speed planing hulls with partially ventilated bottom and hydrofoils
(Massachusetts Institute of Technology, 2014)
The influence of a cambered shaped bottom step on the performance of sea going V-stepped planing hulls is investigated using numerical methods. The shape of the step was designed to decrease the Drag/Lift ratio of the hull ...
Analysis of dynamic acoustic source positioning : an autonomous swarm approach
(Massachusetts Institute of Technology, 2017)
As underwater autonomous vehicles become more prevalent, and their missions more complex, a novel means of underwater acoustic communication with respect to source positioning must be developed that takes advantage of the ...
A parametric modelling tool for high speed displacement monohulls
(Massachusetts Institute of Technology, 2015)
In ship design projects, it is of utmost importance to investigate a wide range of options during the concept design phase in order to determine which one best suits to the requirements. Although, keeping the concept design ...
Adaptive sequential sampling for extreme event statistics in ship design
(Massachusetts Institute of Technology, 2018)
For more than a century, many facets of ship design have fallen into the domain of rules-based engineering. Recent technological progress has been validated to the point that many of these areas will soon warrant ...
Improving the parametric method of cost estimating relationships of naval ships
(Massachusetts Institute of Technology, 2014)
In light of recent military budget cuts, there has been a recent focus on determining methods to reduce the cost of Navy ships. A RAND National Defense Research Institute study showed many sources of cost escalation for ...
CFD based design of a high speed planing hull with cambered planing surface, V-step and hydrofoil
(Massachusetts Institute of Technology, 2015)
With emerging applications for high speed boats in commercial, military and off shore industries, there is a focus in the naval architecture community to improve the efficiency and performance characteristics of planing ...
A fully numerical lifting line method for the design of heavily loaded marine propellers with rake and skew
(Massachusetts Institute of Technology, 2015)
This thesis aims to give a contribution to the design of heavily loaded marine propellers by numerical methods. In this work, a wake-adapted, fully numerical, lifting line model is used to obtain the optimum circulation ...
Acoustically optimized propulsion systems using a Cause-Effect Controller
(Massachusetts Institute of Technology, 2017)
The proposed Acoustic Response Control Process (ARCP) allows for a "Cause- Effect" Controller (CEC) to provide a method to optimize the trade-off between a marine vessel's ability to maneuver and the radiated acoustic noise ...
Shipboard fault detection, load transient exploration, and power simulation
(Massachusetts Institute of Technology, 2020)
Non-intrusive load monitoring experiments have provided useful information in practice for activity tracking, condition-based maintenance, energy scorekeeping, and fault detection through various installations over several ...