Influence of Grouser Geometrical Parameters of Deep-Sea Crawler Vehicle on Soft Clays

Janarthanan, C.; Gopkumar, K.; Sundaramoorthi, V.; Ramesh, N.R.; Ramadass, G. A.

doi:10.1007/978-981-13-3119-0_61

Cited by 5 publications

(4 citation statements)

References 3 publications

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“…Meanwhile, considering the strong adhesion properties of walking devices, res ers drew inspiration from burrowing animals [77], and bionic-based anti-adhesio chines were developed [78], which yielded successful outcomes. Wen-bo et al [56], Janarthanan et al [74] used the coupling Euler-Lagrange (CEL) method in ABAQUS 2020 software to numerically simulate tracks with different structural parameters, and they verified the impact of grouser characteristics on the ability to generate traction and displace soil. Sun et al [75] evaluated the impact of different parameters, i.e., different velocities, number of grousers, and composition of sediments by the coupling Euler-Lagrange method, where stress variation and disturbance data were obtained.…”

Section: Optimization Design Of Bionic Grousersmentioning

confidence: 99%

A Review on Underwater Collection and Transportation Equipment of Polymetallic Nodules in Deep-Sea Mining

Zhang,

Zuo,

Wei

et al. 2024

JMSE

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In response to the anticipated scarcity of terrestrial land resources in the coming years, the acquisition of marine mineral resources is imperative. This paper mainly summarizes the development of underwater collection and transportation equipment of polymetallic nodules in deep-sea mining. Firstly, the collection equipment is reviewed. The deep-sea mining vehicle (DSMV), as the key equipment of the collection equipment, mainly includes the collecting device and the walking device. The micro and macro properties of sediments have a great influence on the collection efficiency of mining vehicles. For the collecting device, the optimization of the jet head structure and the solid–liquid two-phase flow transport of the hose are discussed. The structure of the walking device restricts mining efficiency. The optimization of the geometric structure is studied, and the geometric passability and lightweight design of the walking device are discussed. Secondly, the core of transportation equipment is the lifting device composed of a riser and lifting pump. In order to explore the key factors affecting mineral transport, the lifting device is summarized, and the design optimization of the lifting pump and the factors affecting the stability of the riser are discussed. Then, the relationship between each device is discussed, and the overall coupling of the device is summarized. Finally, the existing problems and future research focus are summarized.

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Section: Optimization Design Of Bionic Grousersmentioning

confidence: 99%

A Review on Underwater Collection and Transportation Equipment of Polymetallic Nodules in Deep-Sea Mining

Zhang,

Zuo,

Wei

et al. 2024

JMSE

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show abstract

“…Tese factors provide a theoretical basis for the development and design of an undersea walking vehicle. However, due to the difculty of carrying out in-situ experiments at the current level of technology, researchers often use mixtures of bentonite and water instead of deepsea sediments to conduct experimental studies and obtain the mechanical properties of their interactions [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

A Pressure‐Sinkage Model for Deep‐Sea Sediments Based on Variable‐Order Fractional Derivatives

Wei

Cao

Xia

2023

Mathematical Problems in Engineering

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In order to better describe the pressure-sinkage process of deep-sea surface sediments, this article proposes a new four-element model. First, the pressure-sinkage process was divided into four components according to the change in the deep-sea sediment sinkage rate, and the time-dependent mechanical property of deep-sea sediments was described. Then, a new four-element pressure-sinkage model was established by introducing variable-order fractional derivatives into the modelling idea of classic element combination to describe the full pressure-sinkage regions of deep-sea sediments. Furthermore, by comparing with the experimental results from other literature, the proposed model was verified to predict the pressure-sinkage process of deep-sea sediments under static and dynamic loads. Finally, through a sensitivity analysis of model parameters, the effects of ground pressure and time on the law and mechanism of deep-sea sediment pressure sinkage were revealed. Results indicate that the deep-sea sediment pressure-sinkage process has obvious nonlinear characteristics and that the sinkage depth increases directly with ground-specific pressure and time. Through comparative analysis of both experimental and predicted results, the proposed pressure-sinkage constitutive model can describe the stress-strain of the full stages. Thus, the variable order model represents an effective method to predict the pressure-sinkage process of deep-sea sediments.

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“…Li et al [16] studied the tractive force of grousers under different sand content sediments and found that the higher the sand content under the same slip ratio, the greater the tractive force, and the slip rate should be controlled below 6% in order to avoid the decrease of tractive force. Using the traditional Mohr-Coulomb failure criterion and the shear speed of 15 mm/s, Janarthanan et al [17] carried out experiments and simulations in the deep-sea soft soil environment and studied the influence of different shapes of grouser on the traction force of the collector. Li et al [18] carried out a large number of experiments on π-shaped, T-shaped, and V-shaped grousers, and found that the traction force of the π-shaped crawler is more sensitive to width and the T-shaped one is more sensitive to height, while the structural parameters of the V-shaped grouser have little influence on it, but it has a minor vertical subsidence displacement.…”

Section: Introductionmentioning

confidence: 99%

Study on an Analytical Solution to the Mechanical Response of Soil Cut by a Bionic Force Enhancement Grouser

Chen

Wang

et al. 2021

JMSE

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With the depletion of land mineral resources, people have turned their attention to the sea. As an important part of deep-sea mining systems, the technical research and development of ore collectors has always been a difficult problem in many countries. According to the characteristic that buffalo hoof is suitable for walking on soft soil, a kind of bionic grouser for a deep-sea mining vehicle is designed in this paper. Through the optimization of Rankine’s passive earth pressure theory, the formula for calculating the tractive force of the grouser is obtained. The accuracy of the analytical solution is verified by finite element simulation, and the force enhancement mechanism of the bionic grouser is revealed. The results show that the design of the bionic grouser has a significant effect on the improvement of tractive force, and the tractive force of the No. 1 bionic grouser is 17.52% higher than that of the straight grouser. On this basis, the geometric parameters of the bionic grouser profile are optimized. The results show that when L is 0 mm and R is 183 mm, the force enhancement effect reaches the maximum of 27%, which provides a design basis for optimizing the grouser and improving the mining efficiency of the collector.

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Influence of Grouser Geometrical Parameters of Deep-Sea Crawler Vehicle on Soft Clays

Cited by 5 publications

References 3 publications

A Review on Underwater Collection and Transportation Equipment of Polymetallic Nodules in Deep-Sea Mining

A Review on Underwater Collection and Transportation Equipment of Polymetallic Nodules in Deep-Sea Mining

A Pressure‐Sinkage Model for Deep‐Sea Sediments Based on Variable‐Order Fractional Derivatives

Study on an Analytical Solution to the Mechanical Response of Soil Cut by a Bionic Force Enhancement Grouser

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