A Prototype Design and Sea Trials of an 11,000 m Autonomous and Remotely-Operated Vehicle Dream Chaser

Jiang, Zhe; Lü, Bin; Wang, Biao; Cui, Weicheng; Zhang, Jinfei; Luo, Ruilong; Luo, Gaosheng; Zhang, Shun; Mao, Zhongjun

doi:10.3390/jmse10060812

Cited by 9 publications

(3 citation statements)

References 14 publications

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“…In contrast to ROVs and AUVs, ARVs have various control modes and flexible operation modes, making them applicable and extensible in ocean engineering. ARVs normally have two operational modes, i.e., the remotely operated mode and the autonomous-operated mode [11]. In the autonomous-operated mode, ARVs can be used in a wide range of search and monitoring applications.…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamic shape optimization of an autonomous and remotely-operated vehicle via a multi-surrogate model

Liu,

Yue,

et al. 2024

Brodogradnja

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The design requirements for the hydrodynamic performance of underwater vehicles vary significantly depending on the application. Optimization without an initial model results in challenges such as large design domains, nonlinear complexity, and high data requirements. To optimize the hydrodynamic performance during the design process, in this paper, a multi-surrogate model was employed to progressively design the shape of an autonomous and remotely-operated vehicle. Based on the data characteristics of different stages, this approach strikes a balance among data quantity, prediction accuracy, and multi-objective requirements. An artificial neural network prediction surrogate model was constructed based on the principle of the minimum prediction factor using the optimal Latin hypercube sampling method. During the optimization of the design domain, the optimum objective was to minimize the dimensionless force (G(x)). During the multi-objective optimization stage, a regression kriging surrogate model was constructed based on a support vector product. The optimization objectives were to maximize volume and minimize dimensionless forces. This enabled the overall design process to attain optimal Pareto solutions within the design domain while simultaneously ensuring high prediction accuracy and minimum data requirements. The results obtained are consistent with the simulation comparison, thus verifying the reliability of the entire optimization process.

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Section: Introductionmentioning

confidence: 99%

Hydrodynamic shape optimization of an autonomous and remotely-operated vehicle via a multi-surrogate model

Liu,

Yue,

et al. 2024

Brodogradnja

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“…In order to achieve autonomous discovery and intense sampling of high chlorophyll-a concentration areas, Zhang et al (2022) have proposed an online path-planning method with heterogeneous strategies and lowcommunication cooperation for the adaptive sampling of multiple AUVs. Jiang et al (2022) have proposed to construct a movable laboratory that includes a mothership and several full-ocean-depth autonomous and remotely operated vehicles to obtain samples in the hadal trenches. Yoerger et al (2021) have developed an AUV to address the specific unmet needs for observing and sampling a variety of phenomena in the ocean, including environment and biodiversity.…”

Section: Introductionmentioning

confidence: 99%

Research on the effects of complex terrain on the hydrodynamic performance of a deep-sea fishlike exploring and sampling robot moving near the sea bottom

Xue

Bai²,

Ren³

et al. 2023

Front. Mar. Sci.

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Deep-sea exploring and sampling technologies have become frontier topics. Generally, the movable exploring mode near the seabed with low disturbance is an important way to improve the measurement accuracy and expand the measurement range. Inspired by fish, the fishlike propulsion method has the characteristics of low disturbance and high flexibility, which is very suitable for near-seabed detection under complex terrain conditions. However, the swimming mechanism and surrounding flow field evolution law of the robotic fish under the constraints of complex terrain are still unclear. In this paper, the confined terrain space is constructed with an undulating seabed and a narrow channel, and the hydrodynamic changing law and flow field evolution law of the autonomous swimming process of the fishlike swimmer in the confined space are analyzed. Moreover, the influence mechanism of the terrain on the motion performance of the robotic fish is revealed, and the optimal motion mode of the robotic fish under a complex terrain constraint is discussed. The results show that the propulsion force, Froude efficiency, and swimming stability of the robotic fish vary with the distance from the bottom under the undulating seabed condition lightly. When the distance from the bottom exceeds a certain value, it can be considered that the undulating seabed no longer affects the swimmer. Furthermore, when the robotic fish swims through a narrow channel with certain width, the swimming performance obviously varies with the distance from the boundary surface. During swimming in the confined terrain space, the propulsion force and swimming stability of robotic fish will decrease. In order to maintain the forward speed, the robotic fish should improve the tail-beat frequency in real time. However, considering the swimming stability, the tail-beat frequency is not the larger the better. The relevant conclusions of this paper could provide theoretical support for the development of low-disturbance bionic exploring and sampling platforms for deep-sea resources and environments.

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“…The utilization of Unmanned Aerial Vehicle (UAV) technology has proliferated. UAV, commonly known as drones, are pilotless aircraft that can be operated remotely from a computer system or other vehicles on land, sea, or air [1]- [6]. Drones have various applications, including mapping [7]- [9].…”

Section: Introductionmentioning

confidence: 99%

Testing the Bending Strength of Carbon Fiber Composites using the vacuum infusion and vacuum bagging method on the UAV Skywalker 1900 Fuselage Material

Febriyanto,

Setiawan,

Putra

2023

Fiziya

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The purpose of this study was to determine the bending strength of carbon fiber composite materials with lycal epoxy resin on the Skywalker 1900 UAV. Composites will be made for test specimens with carbon fiber combined with lycal resin using vacuum infusion printing and vacuum bagging methods. From these two methods a sample of specimens will be made for testing using a bending test using the three point bending method to determine the bending strength value of the fuselage material. As for another test, namely microphotos, the process of observing this microstructure can find out how the shape, size, and distribution of second phase particles have an important role in knowing the properties of the material itself. The results of the test specimens were compared between vacuum infusion printing and vacuum bagging and then the best value was sought between the two methods. The results were obtained after testing where the two methods of printing and micro-photos obtained the best results in vacuum bagging. In the vacuum bagging process, the highest value was found in specimen b2 with a bending stress value of 1201.90Mpa and the lowest yield was found in specimen i1 with a bending stress value of 1017.74Mpa. Then the micro photo test can be seen in the vacuum bagging printing process, the penetration of the resin in bagging to the fiber is better.

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A Prototype Design and Sea Trials of an 11,000 m Autonomous and Remotely-Operated Vehicle Dream Chaser

Cited by 9 publications

References 14 publications

Hydrodynamic shape optimization of an autonomous and remotely-operated vehicle via a multi-surrogate model

Hydrodynamic shape optimization of an autonomous and remotely-operated vehicle via a multi-surrogate model

Research on the effects of complex terrain on the hydrodynamic performance of a deep-sea fishlike exploring and sampling robot moving near the sea bottom

Testing the Bending Strength of Carbon Fiber Composites using the vacuum infusion and vacuum bagging method on the UAV Skywalker 1900 Fuselage Material

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