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Now showing items 21-30 of 61
An experimental study of the human interface with one atmosphere diving suit by appendages
(Massachusetts Institute of Technology, 2016)
This experimental study of the human interface with an Atmospheric Diving Suit (ADS) develops a method for quantitatively evaluating how the pilot interacts with the suit's appendages to inform design improvements and to ...
An experimental study of the one Atmosphere Diving Suit (ADS) and data analysis of military diving
(Massachusetts Institute of Technology, 2016)
The Atmospheric Diving Suit (ADS) is a one-man submarine with moveable, humanlike appendages with internal pressure maintained at one atmosphere. This precludes the possibility of common diving related illnesses while ...
Risk-based treatment of uncertainty in trade space exploration : application via Monte Carlo simulation on a manned, mini-submersible model
(Massachusetts Institute of Technology, 2018)
In design, modeling and simulation are commonly used to answer questions of interest as it is both inefficient and expensive to physically build and evaluate numerous possibilities. Any modeling effort aims to build the ...
Resilient acquisition : unlocking high-velocity learning with model-based engineering to deliver capability to the fleet faster
(Massachusetts Institute of Technology, 2019)
As the nation's security needs call for a growing naval fleet, the public-private industrial base for construction and weapon system acquisition will be stressed to perform at a high level of operational excellence. While ...
Simulation-guided lattice geometry optimization of a lightweight metal marine propeller for additive manufacturing
(Massachusetts Institute of Technology, 2019)
Additive manufacturing (AM) is one of the most promising emerging technologies for advanced mechanical systems. When compared to conventional manufacturing processes, AM offers major advantages in production of complex ...
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 ...
Enabling tactical autonomy for unmanned surface vehicles in defensive swarm engagements
(Massachusetts Institute of Technology, 2018)
This research incorporates practical applications of marine vehicles with robotics control theory to reduce the vulnerability of allied assets to asymmetric warfare. This work utilizes distributed decentralized multi-objective ...
COLREGS-compliant autonomous collision avoidance using multi-objective optimization with interval programming
(Massachusetts Institute of Technology, 2014)
High contact density environments are becoming ubiquitous in autonomous marine vehicle (AMV) operations. Safely managing these environments and their mission greatly taxes platforms. AMV collisions will likely increase as ...
Combined tensile-compressive biaxial loading of Li-ion battery components
(Massachusetts Institute of Technology, 2018)
Lithium-ion batteries under a mechanical load can develop failures in the internal multi-layer structure. Due to the flammable materials required for construction, the safety of the battery has been in question since it ...
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 ...