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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
61

Design of an AUV recharging system / Design of an Autonomous Underwater Vehicle recharging system

Gish, Lynn Andrew January 2004 (has links)
Thesis (Nav. E. and S.M.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 2004. / Includes bibliographical references (p. 111-115). / The utility of present Autonomous Underwater Vehicles (AUVs) is limited by their on-board energy storage capability. Research indicates that rechargeable batteries will continue to be the AUV power source of choice for at least the near future. Thus, a need exists in both military and commercial markets for a universal, industry-standard underwater AUV recharge system. A novel solution using a linear coaxial wound transformer (LCWT) inductive coupling mounted on the AUV and a vertical docking cable is investigated. The docking cable may be deployed from either a fixed docking station or a mobile "tanker AUV". A numerical simulation of the simplified system hydrodynamics was created in MATLAB and used to evaluate the mechanical feasibility of the proposed system. The simulation tool calculated cable tension and AUV oscillation subsequent to the docking interaction. A prototype LCWT coupling was built and tested in saltwater to evaluate the power transfer efficiency of the system. The testing indicated that the surrounding medium has little effect on system performance. / (cont.) Finally, an economic analysis was conducted to determine the impact of the proposed system on the present military and commercial AUV markets. The recharge system creates substantial cost-savings, mainly by reducing support ship requirements. An effective AUV recharge system will be an important element of the Navy's net-centric warfare concept, as well as a valuable tool for commercial marine industries. / by Lynn Andrew Gish. / Nav.E.and S.M.
62

Formation control for autonomous marine vehicles

Kleeck, Christopher John Van. January 2009 (has links)
Thesis (M. Sc.)--University of Alberta, 2009. / Title from pdf file main screen (viewed on Dec. 23, 2009). "A thesis submitted to the Faculty of Graduate Studies and Research in partial fulfillment of the requirements for the degree of Master of Science, Department of Mechanical Engineering, University of Alberta." Includes bibliographical references.
63

Identification of the hydrodynamic model of an underwater robotic vehicle heaving and pitching near the sea surface using its measured response /

Mahfouz, Ayman B., January 2001 (has links)
Thesis (Ph.D.)--Memorial University of Newfoundland, 2001. / Bibliography: leaves 187-194.
64

Experiments with the REMUS AUV /

Phaneuf, Matthew D. January 2004 (has links) (PDF)
Thesis (M.S. in Mechanical Engineering)--Naval Postgraduate School, June 2004. / Thesis advisor(s): Anthony J. Healey. Includes bibliographical references (p. 57-59). Also available online.
65

Horizontal steering control in docking the ARIES AUV /

Tan, Wee Kiat. January 2003 (has links) (PDF)
Thesis (M.S. in Mechanical Engineering)--Naval Postgraduate School, December 2003. / Thesis advisor(s): Fotis Papoulias, Anthony J. Healey. Includes bibliographical references (p. 83). Also available online.
66

Comparison of approaches for determining the failure of stiffened cylindrical shells /

Price, David J. January 2002 (has links)
Thesis (M.S. in Naval Architecture and Marine Engineering and M.S. in Mechanical Engineering)--Massachusetts Institute of Technology, 2002. / Includes bibliographical references (p. 57). Also available online.
67

Acoustic based tactical control of underwater vehicles /

Marr, William J. January 2003 (has links) (PDF)
Thesis (Ph. D. in Mechanical Engineering)--Naval Postgraduate School, June 2003. / Dissertation supervisor: Anthony J. Healey. Includes bibliographical references (p. 169-173). Also available online.
68

Autopilot using differential thrust for ARIES autonomous underwater vehicle /

Sarton, Christopher J. January 2003 (has links) (PDF)
Thesis (M.S. in Mechanical Engineering)--Naval Postgraduate School, June 2003. / Thesis advisor(s): Anthony J. Healey. Includes bibliographical references (p. 43). Also available online.
69

An experimental analysis of the dynamics of a submerged tethered cradle in a seaway /

Cohen, Jay Martin. January 1972 (has links)
Originally issued as the author's Thesis (O.E. and M.S.)--Massachusetts Institute of Technology and Woods Hole Oceanographic Institution.
70

Hydrodynamic aspects of ROV design

Baker, J. H. A. January 1989 (has links)
No description available.

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