Winch control gear for CTD sampling with a system to compensate vertical motion heave when manoeuvring in rough seas

Carral, Luis; Rey, Jose de Lara; Alvarez-Feal, Jose Carlos

doi:10.1016/j.oceaneng.2017.03.005

Cited by 6 publications

(2 citation statements)

References 8 publications

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“…[1][2][3] The conductivity, temperature, and depth (CTD) of seawater are the most basic measurement parameters in ocean research. [4][5][6] In general, CTD parameters are measured using research vessels, [7,8] autonomous underwater vehicles (AUVs), [9,10] and satellite observations. [11,12] The large sizes and low integration of these complex equipment types hinder the accurate and efficient collection of marine hydrological information.…”

Section: Introductionmentioning

confidence: 99%

Flexible Bioelectronic Tag with a Kirigami‐Based Design for Crosstalk Suppression in Multimodal Sensing

He,

Sheng,

Wang

et al. 2023

Adv Materials Technologies

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Ocean research currently relies heavily on bulky bioelectronic tags and sensory telemetry networks for data collection. Therefore, in this study, a compact and flexible waterproof bioelectronic tag with a kirigami (paper cutting)‐based design for underwater conductivity, temperature, depth, and strain sensing is designed and evaluated. Unlike invasive bioelectronic tags, the kirigami bioelectronic tag can be attached to robotic fish or aquatic animals without harming the host. The kirigami‐based design facilitates excellent stretchability and reduces stress within the sensor, thus inhibiting crosstalk induced by movement during multimodal sensing. A working bioelectronic tag is fabricated and tested. Notably, the performance of the kirigami sensors shows very little degradation even after >1000 stretching cycles. Specifically, the multimodal bioelectronic tag demonstrated a wide working pressure range of 0–5.0 MPa, and the kirigami design effectively suppressed signal coupling. The kirigami‐based bioelectronic tag is applied to a robotic dolphin and underwater environmental parameters and detailed movement parameters, such as swing angle, swing frequency, and typical gestures are detected simultaneously with high sensitivity and accuracy. Therefore, the device can be applied to a broad range of applications in various fields such as behavioral biology, ocean informatics, and underwater robotics.

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Section: Introductionmentioning

confidence: 99%

Flexible Bioelectronic Tag with a Kirigami‐Based Design for Crosstalk Suppression in Multimodal Sensing

He,

Sheng,

Wang

et al. 2023

Adv Materials Technologies

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“…Lifting and lowering a load on the ocean can be a dangerous task, especially in high seas [1], [2]. Heave compensation devices can be applied to make the task easy and safe and enlarge the window of operation.…”

Section: Introductionmentioning

confidence: 99%

Design and Full-Scale Experimental Results of a Semi-Active Heave Compensation System for a 200 T Winch

Niu

Yan³

et al. 2019

IEEE Access

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Lifting and lowering a load on the ocean can be a dangerous task but can be made easy and safe by adopting heave compensation (HC) devices. The design and full-scale experimental results of a 3000-m semi-active heave compensation (AHC) system for a 200-T winch are presented in this paper. First, the design requirements are given and the semi-AHC mechanism is chosen. An integrated cylinder with one passive chamber and two active chambers is designed. Then, the capacities of the passive and active chambers are determined. The hydraulic and electrical systems and the control strategies are introduced subsequently. Finally, full-scale factory tests at different sinusoidal wave periods and amplitudes show that the semi-AHC system has a displacement compensation efficiency of 92.9% met the design requirements. In-depth power analysis further shows that the active and passive chambers contribute 20.5% and 72.4% displacement compensation efficiencies, respectively. The efficiency of the passive chamber consists with the 68%-80% passive compensation efficiency from Oceanworks Company and Rexroth Company.INDEX TERMS Integrated cylinder, passive heave, power analysis, semi-active heave compensation.

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Expert System for the Execution and Supervision of the Anchorage Maneuver

Carral

Tarrío-Saavedra

Alvarez-Feal

et al. 2018

Proceedings of the 25th Pan-American Conference of Naval Engineering—COPINAVAL

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Winch control gear for CTD sampling with a system to compensate vertical motion heave when manoeuvring in rough seas

Cited by 6 publications

References 8 publications

Flexible Bioelectronic Tag with a Kirigami‐Based Design for Crosstalk Suppression in Multimodal Sensing

Flexible Bioelectronic Tag with a Kirigami‐Based Design for Crosstalk Suppression in Multimodal Sensing

Design and Full-Scale Experimental Results of a Semi-Active Heave Compensation System for a 200 T Winch

Expert System for the Execution and Supervision of the Anchorage Maneuver

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