Study on spatial turning maneuver of underwater towed system for submersibles

Abstract The spatial turning motion of a submersible is a crucial maneuvering mode that significantly affects the dynamic performance and stability of an underwater towed system. To quantitatively capture the key influencing factors, a set of dimensionless parameters is introduced. A dynamic model i...

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Main Authors: Wang Zhibo, Kong Peiyun
Format: Article
Language:English
Published: Nature Portfolio 2025-07-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-025-10008-y
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author Wang Zhibo
Kong Peiyun
author_facet Wang Zhibo
Kong Peiyun
author_sort Wang Zhibo
collection DOAJ
description Abstract The spatial turning motion of a submersible is a crucial maneuvering mode that significantly affects the dynamic performance and stability of an underwater towed system. To quantitatively capture the key influencing factors, a set of dimensionless parameters is introduced. A dynamic model is developed based on the lumped mass method, incorporating the six-degree-of-freedom maneuvering motion of the submersible and the nonlinear dynamics of the flexible towed cable. Parametric studies are conducted by varying five dimensionless ratios: the turning radius to cable length R/L, total cable mass to towed body mass ω, cable unit mass to unit drag w/r, horizontal to vertical speed ratio V ζ /V t , and cable buoyancy to gravity B c /G c ​. Results show that when R/L increases from 0.05 to 1.0, the steady-state tension drops by approximately 20. Increasing V ζ /V t from 20 to 80 shortens the transient stage by 87.5%. The system achieves minimum tension when R/L = 1.0, indicating optimal vertical force balance. These findings reveal clear dynamic trends and provide guidance for parameter optimization in submersible-towed systems under complex 3D motion.
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spelling doaj-art-dc7f136d97ed4f3cbb9444616bcd98b12025-08-20T03:46:07ZengNature PortfolioScientific Reports2045-23222025-07-0115111110.1038/s41598-025-10008-yStudy on spatial turning maneuver of underwater towed system for submersiblesWang Zhibo0Kong Peiyun1School of Ocean Engineering, Jiangsu Ocean UniversitySchool of Ocean Engineering, Jiangsu Ocean UniversityAbstract The spatial turning motion of a submersible is a crucial maneuvering mode that significantly affects the dynamic performance and stability of an underwater towed system. To quantitatively capture the key influencing factors, a set of dimensionless parameters is introduced. A dynamic model is developed based on the lumped mass method, incorporating the six-degree-of-freedom maneuvering motion of the submersible and the nonlinear dynamics of the flexible towed cable. Parametric studies are conducted by varying five dimensionless ratios: the turning radius to cable length R/L, total cable mass to towed body mass ω, cable unit mass to unit drag w/r, horizontal to vertical speed ratio V ζ /V t , and cable buoyancy to gravity B c /G c ​. Results show that when R/L increases from 0.05 to 1.0, the steady-state tension drops by approximately 20. Increasing V ζ /V t from 20 to 80 shortens the transient stage by 87.5%. The system achieves minimum tension when R/L = 1.0, indicating optimal vertical force balance. These findings reveal clear dynamic trends and provide guidance for parameter optimization in submersible-towed systems under complex 3D motion.https://doi.org/10.1038/s41598-025-10008-y
spellingShingle Wang Zhibo
Kong Peiyun
Study on spatial turning maneuver of underwater towed system for submersibles
Scientific Reports
title Study on spatial turning maneuver of underwater towed system for submersibles
title_full Study on spatial turning maneuver of underwater towed system for submersibles
title_fullStr Study on spatial turning maneuver of underwater towed system for submersibles
title_full_unstemmed Study on spatial turning maneuver of underwater towed system for submersibles
title_short Study on spatial turning maneuver of underwater towed system for submersibles
title_sort study on spatial turning maneuver of underwater towed system for submersibles
url https://doi.org/10.1038/s41598-025-10008-y
work_keys_str_mv AT wangzhibo studyonspatialturningmaneuverofunderwatertowedsystemforsubmersibles
AT kongpeiyun studyonspatialturningmaneuverofunderwatertowedsystemforsubmersibles