2026-09-19T19:26:01Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/678022026-06-06T01:05:25Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
Mark S. Welsh and John J. Leonard.
Shepard, Kenneth (Kenneth S.)
Massachusetts Institute of Technology. Dept. of Mechanical Engineering.
Massachusetts Institute of Technology. Department of Mechanical Engineering
2011-12-19T18:53:11Z
2011-12-19T18:53:11Z
2011
2011
http://hdl.handle.net/1721.1/67802
767828845
Thesis (S.M. in Naval Architecture and Marine Engineering and S.M. in Mechanical Engineering)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2011.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 73).
This thesis presents an approach to the structural design and optimization of a non-pressurized manned submersible (NPMS), a type of fully "flooded" submersible based on a SEAL Delivery Vehicle (SDV) Design Concept. Using the design parameters determined by the mathematical model, a solid model was generated and an ANSYS goal-driven optimizer was used to further optimize the hull weldment and variable ballast tanks. When three different designs were subsequently evaluated to verify the parametric model and the scalability of the NPMS design concept, all three were found to be able to be successfully generated and to meet the stated design requirements after ANSYS optimization. These findings indicate that the approach presented in this thesis can be used as an initial design tool in the future design of NPMSs.
by Kenneth Shepard.
S.M. in Naval Architecture and Marine Engineering
S.M. in Mechanical Engineering
103 p.
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by
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http://dspace.mit.edu/handle/1721.1/7582
Mechanical Engineering.
Optimized design and structural analysis of a non-pressurized manned submersible
NPMS
Thesis
application/pdf
Publication
unknown
unknown
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<Abstract>This thesis presents an approach to the structural design and optimization of a non-pressurized manned submersible (NPMS), a type of fully "flooded" submersible based on a SEAL Delivery Vehicle (SDV) Design Concept. Using the design parameters determined by the mathematical model, a solid model was generated and an ANSYS goal-driven optimizer was used to further optimize the hull weldment and variable ballast tanks. When three different designs were subsequently evaluated to verify the parametric model and the scalability of the NPMS design concept, all three were found to be able to be successfully generated and to meet the stated design requirements after ANSYS optimization. These findings indicate that the approach presented in this thesis can be used as an initial design tool in the future design of NPMSs.</Abstract>
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