A computer simulation model for design of variable buoyancy system for autonomous underwater vehicles/gliders

Tiwari, B. K.; Sharma, R.; Thondiyath, Asokan

doi:10.1109/oceansap.2016.7485723

Cited by 6 publications

(1 citation statement)

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“…B.K. Tiwari et al proposed a computer simulation model (CSM) for the preliminary design of an AUV/AUGs variable buoyancy system (VBS) to achieve effective control of buoyancy [16,17]. Hexiong Zhou et al proposed an accumulator-based hybrid buoyancy adjustment system for deep-sea gliders, which can effectively use ocean pressure difference energy to achieve buoyancy compensation.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Self-Driven Profiler with Buoyancy Adjusting System towards Ocean Thermal Energy

et al. 2021

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An underwater profiler is one of the popular platforms for ocean observation. Due to energy limitations, conventional underwater vehicles have a short life span, which cannot meet the needs of long-term ocean exploration. Therefore, there is a growing interest in using ocean energy such as ocean thermal energy and wave energy for driving. This study aimed to investigate an energy-saving and ocean thermal energy (OTE)-powered buoyancy driving system of the ocean profiler. The purpose of this study was to explore an ocean profiler buoyancy driving system powered by ocean thermal energy (OTE). According to the seawater profile temperature gradient, an OTE-powered electro-hydraulic control system was designed, and the dynamic characteristics of this system are simulated and analyzed by using the power bonding diagram method. Based on the results conducted from lake tests, this profiler possesses the self-driving capability for using OTE perfectly. This research can provide important guidance for the design of the buoyancy drive system of underwater vehicles.

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Section: Introductionmentioning

confidence: 99%

Investigation of Self-Driven Profiler with Buoyancy Adjusting System towards Ocean Thermal Energy

et al. 2021

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Simulation and control of a novel hovering type autonomous underwater vehicle (HAUV) with ballast tanks

Karimi

Ghasemi

2022

Int. J. Dynam. Control

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Depth control design and simulation of hybrid underwater glider

Latifah

Fatimah

Hakim

et al. 2019

J. Phys.: Conf. Ser.

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The hybrid underwater glider is a class from the autonomous underwater vehicle (AUV) that the concept of a buoyancy-engine to drive the vehicle sinking or to float are integrated and propeller propulsion systems for variable motion. This kind of vehicle has multi-functionality that enables to maneuver with glider and AUV mode so that it is an effective tool for oceanographic research. To represent the vehicle dynamic, the mathematical model base on the Newton–Euler approach is designed as a nonlinear equation that derives from forces and moment that acting from the vehicle design. For glider motion, buoyancy-engine and moving mass are coupled for working as an input controller actuator, and there is controlling need to make the vehicle go to mission point in some depth for a mission. In this paper, the depth controller will be designed to make the vehicle stay on depth condition. PID controller is used for controller design, that the mathematical model is derived to linear model. Simulation on MATLAB/Simulink is used to design the model and get dynamic vehicle response. With vehicle characteristic for glider motion, desired waypoint obtained with PD control for moving mass in x-axes and P controller for buoyancy engine.

show abstract

A computer simulation model for design of variable buoyancy system for autonomous underwater vehicles/gliders

Cited by 6 publications

References 1 publication

Investigation of Self-Driven Profiler with Buoyancy Adjusting System towards Ocean Thermal Energy

Investigation of Self-Driven Profiler with Buoyancy Adjusting System towards Ocean Thermal Energy

Simulation and control of a novel hovering type autonomous underwater vehicle (HAUV) with ballast tanks

Depth control design and simulation of hybrid underwater glider

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