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A Bionic Flexible-bodied Underwater Glider with Neutral Buoyancy

Journal of Bionic Engineering 2021年第5期18卷 1073-1085页

作者： Yaqiang Zhu Yuhong Liu Shuxin Wang Lianhong Zhang Yanhui Wang Key Laboratory of Mechanism Theory and Equipment Design of Ministry of Education School of Mechanical EngineeringTianjin UniversityTianjin 300350China The Joint Laboratory of Ocean Observing and Detection Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China

The buoyancy of traditional Underwater Glider(UG)with a rigid hull is aff ected by the changing marine parameters,making it difficult for the vehicle to dive deeper with good motion *** the present work,the development of a novel UG for neutral buoyancy,which is equipped with a Flexible-Liquid-Rigid(FLR)composite hull,is *** innovative hull that imitates the buoyancy regulation mechanism of marine organisms is easily adaptable to the changing marine *** rigid part of the composite hull withstands hydrostatic pressure for inner function modules of the *** liquid of the composite hull mainly serves as a buoyancy compensation to mitigate the eff ect of buoyancy variation caused by the changing marine *** flexible covering provides a good hydrodynamic shape for the vehicle under the internal liquid *** buoyancy variation due to the composite hull compression as well as changes of seawater density and temperature was comprehensively considered in the design process and integrated to the dynamic *** addition,sea trials were performed to verify the motion characteristics of the proposed *** results reveal that the Flexible-bodied Underwater Glider(FUG)has a better gliding performance in practice.

关键词： Bio-inspired buoyancy regulation Flexible-bodied vehicle composite hull Adaptable buoyancy compensation

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