Robust dynamics calculation for underwater Moving Slender Bodies via Flexible Segment Model based optimization

Robust dynamics calculation for underwater Moving Slender Bodies via Flexible Segment Model based... Flexible Segment Model (FSM) based optimization method is proposed as a robust dynamics calculation method for underwater Moving Slender Bodies (MSBs). In the method, the underwater MSB is divided into a series of flexible segments, their deformations are analyzed individually, and the dynamics calculation is accomplished by the optimization of a mechanical equilibrium function in a simple form. Because the whole deformation of a MSB is decomposed into small ‘curve’ deformations of all segments, the dynamics calculation needs a relatively small number of segments for accuracy. The comparison with experimental results shows that the numerical results by FSM based optimization method have good accuracy. Moreover, the tests of sensitivity and error tolerance show the numerical calculation by FSM based optimization method has high stability. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Ocean Engineering Elsevier

Robust dynamics calculation for underwater Moving Slender Bodies via Flexible Segment Model based optimization

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Publisher
Elsevier
Copyright
Copyright © 2015 Elsevier Ltd
ISSN
0029-8018
eISSN
1873-5258
D.O.I.
10.1016/j.oceaneng.2015.08.036
Publisher site
See Article on Publisher Site

Abstract

Flexible Segment Model (FSM) based optimization method is proposed as a robust dynamics calculation method for underwater Moving Slender Bodies (MSBs). In the method, the underwater MSB is divided into a series of flexible segments, their deformations are analyzed individually, and the dynamics calculation is accomplished by the optimization of a mechanical equilibrium function in a simple form. Because the whole deformation of a MSB is decomposed into small ‘curve’ deformations of all segments, the dynamics calculation needs a relatively small number of segments for accuracy. The comparison with experimental results shows that the numerical results by FSM based optimization method have good accuracy. Moreover, the tests of sensitivity and error tolerance show the numerical calculation by FSM based optimization method has high stability.

Journal

Ocean EngineeringElsevier

Published: Nov 1, 2015

References

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