On the Accuracy of an Analytical Solution to Model Wave-Induced Loads on an Underwater Vehicle in Real-Time
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Authors
Klamo, Joseph T.
Turner, Travis M.
Cool, Colin Y.
Yeager, Kathryn I.
Kwon, Young W.
Subjects
hydrodynamics
wave mechanics
wave effects
wave mechanics
wave effects
Advisors
Date of Issue
2021-06
Date
Publisher
American Society of Mechanical Engineers (ASME)
Language
Abstract
The accuracy of an existing analytical solution for modeling the linear, first-order wave-induced
loads on a fully submerged body is investigated. The accuracy is assessed for
the situation where the underlying theoretical assumptions are met, and the sensitivity of
the accuracy to these assumptions is also explored. The accuracy was quantified by comparing
the analytical solutions to experimental measurements from a tow tank with wave
generation capability. The assessment showed that when all the assumptions are met, the
heave and surge forces are predicted quite accurately but the pitch moment is overpredicted.
The results also showed that the deeply submerged assumption is met as long as
the body does not cause a disruption of the passing wave on the free surface. The slenderness
and end face curvature assumptions are also quite relaxed and the curvature assumption
only affects the pitch moment accuracy. The most stringent assumption appears to be
the body-of-revolution assumption which can cause all three loads to be predicted poorly.
The analytical solution appears to be accurate over a large parameter space and could be
incorporated as a wave disturbance model into a virtual environment used to develop
control and autonomy of unmanned underwater vehicles.
Type
Article
Description
17 USC 105 interim-entered record; under review.
The article of record as published may be found at http://dx.doi.org/10.1115/1.4049119
The article of record as published may be found at http://dx.doi.org/10.1115/1.4049119
Series/Report No
Department
Mechanical and Aerospace Engineering (MAE)
Systems Engineering (SE)
Organization
Identifiers
NPS Report Number
Sponsors
K.I. Yeager was sponsored by ONR, and then in the Research Participant Program sponsored by the Oak Ridge Institute for Science and Education (ORISE).
Unmanned Systems Education and Research (CRUSER) project sponsored by the Department of the Navy, Office of Naval Research.
Unmanned Systems Education and Research (CRUSER) project sponsored by the Department of the Navy, Office of Naval Research.
Funding
Format
14 p.
Citation
Klamo, Joseph T., et al. "On the Accuracy of an Analytical Solution to Model Wave-Induced Loads on an Underwater Vehicle in Real-Time." Journal of Offshore Mechanics and Arctic Engineering 143.3 (2021): 031202.
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.