Simulation Analysis of Torsion Beam Hydroforming Based on the Fluid-Solid Coupling Method

Huang, Yu; Li, Jian; Yang, Jiachun; Peng, Yanjie; Zhang, Weixuan

doi:10.1186/s10033-022-00819-9

Cited by 12 publications

(7 citation statements)

References 16 publications

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“…With the arrival of the big data era, the combination of artificial intelligence technology and massive data is expected to break through traditional mechanical modeling methods, adopt data-driven computational mechanics paradigm to study the mechanical behavior of composite solid propellants, real-time monitor the external and internal state of solid rocket motor grain structure, and achieve intelligent evaluation and environmental optimization. Data driven computational mechanics is in the ascendant, with databases as its foundation and algorithms as its core and its prospects lie in cross-fusion [84]. Correspondingly, in my opinion, the future development of data-driven computational mechanics faces three challenges:…”

Section: Discussionmentioning

confidence: 99%

Review of multi‐scale mechanical behavior research on composite solid propellants based on data‐driven approach

Yuan,

Qiang,

Wang

et al. 2024

Propellants Explo Pyrotec

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Composite solid propellant is a kind of viscoelastic composite with high filling ratio and multi‐scale composition characteristics, and its macroscopic mechanical properties strongly depend on the microstructure of the propellant materia. However, with the increasing complexity of composition, structure and properties of composite solid propellants, the traditional research paradigm based on experimental observation, theoretical modeling and numerical simulation has encountered new scientific challenges and technical bottlenecks in the mechanical behavior analysis, charge design and manufacturing of composite solid propellants. Among them, the problems such as insufficient experimental observation, lack of theoretical model, limited numerical analysis and difficult verification of results restrict the development of composite solid propellants in future‐oriented engineering applications to a certain extent. The data‐driven computational mechanics method can directly establish complex relationships between variables from high‐dimensional and high‐throughput data, which can capture trends that are difficult to be found by traditional mechanics research methods, and has inherent advantages in the analysis, prediction and optimization of complex systems. This paper mainly reviews and evaluates the research of neural network based modeling, model‐free data‐driven calculation and data‐driven multi‐scale calculation, which provides the correct direction for the subsequent research of multi‐scale mechanical behavior of composite solid propellants based on data‐driven.

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Section: Discussionmentioning

confidence: 99%

Review of multi‐scale mechanical behavior research on composite solid propellants based on data‐driven approach

Yuan,

Qiang,

Wang

et al. 2024

Propellants Explo Pyrotec

View full text Add to dashboard Cite

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“…Although its essence is different, the difference between the two is mainly manifested in the great difference in the permeability coefficient. The permeability coefficient of a continuous medium depends on the stress and strain value of the rock, while the water inrush coefficient of water inrush fracture in an inter-layer rock network is related to the characteristics of fracture, which can be expressed by Formula (11). The fluid flow in the water inrush fracture of the network can be equivalently expressed as Equation ( 12) [35].…”

Section: Network-boundary Fluid-solid Coupling Water Inrush Calculati...mentioning

confidence: 99%

“…In view of the current domestic water inrush research, a large number of scholars analyze the evolution mechanism of water inrush through on-site monitoring, numerical simulation, similar simulation, theoretical analysis, and other methods [5][6][7][8][9][10]. The results show that the composite materials of similar simulation materials are relatively mature, but the evolution process of similar simulation water inrush is limited to microscopic rock samples; macroscopic-scale experimental research is less common and needs to be studied further [11,12]. As an auxiliary method for the macroscopic study of water inrush, numerical simulation has achieved certain research results [13,14].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Water Inrush Disaster Mechanism of Inter-Layer Rocks between Close Coal Seams under the Influence of Mining

Zhang

Yang

et al. 2023

Applied Sciences

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With the gradual increase in the mining depth of coal resources, the destruction of the rock structure of the inter-layered rock of the near coal seam under the influence of mining has led to the frequent occurrence of water-inrush disasters in mines, which seriously affects the safety of mine production and the safety of the people in the underground. Therefore, it is important to study the mechanism of the water inrush of the rock between the coal seams under the influence of mining to control the occurrence of water inrush disasters and protect the loss of groundwater resources. This paper takes the Hanjiawan coal mine with typical stratigraphic characteristics as the background for research and studies the structural characteristics of interlayer rock breakage and the solid–liquid coupling inrush water disaster mechanism during the mining of 2−2 and 3−1 coals. The study shows that according to the damage degree and destruction depth of the inter-layered rock caused by the mining of the upper and lower coal seams, combined with the slip line theory and the “three bands” collapse theory, the inter-layered rock is classified into a completely fractured inter-layer, a fractured–broken stacked inter-layer, and a fractured–broken–fractured combined inter-layered rock using L≤hm+Hk2′, L>hm+Hk2′, and L≥hm+Hli2′ as the discriminating criteria. Combined with the structural classification of inter-layer rock and the discriminating criteria, we used similar simulation experiments and on-site research to analyze the evolution law and distribution characteristics of four types of inter-layer rock water-inrush fractures in different mines and put forward the classification of inter-layer rock water-inrush channels based on the width, length, and penetration of the fractures. Based on the characteristics of the water-inrush channel of inter-layer rock, we constructed the network-boundary inrush water calculation model of inter-layered rock and network-attach-boundary inrush water calculation model, solved the water movement of the water-inrush channel in the model by transforming the flat flow state, fracture to flow state, and pore-fracture flow state, and finally revealed the mechanism of the disaster by which water-inrush of inter-layer rocked was induced. Finally, we revealed its mechanism of inducing the inter-layer rock inrush water disaster. Our research enriches the theory and research ideas of the water-inrush disaster, provides theoretical support and a basis for the control of water-inrush disasters in similar conditions, and ensures the safe production of mines.

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“…Based on this, a scientific basis can be provided for the production practice of coal mining engineering. The physical similarity model testing of water filling in the goaf during coal mining considers fluid-solid coupling [3]. In short, "fluid-solid" coupling refers to the coupling effect of the seepage and stress fields.…”

Section: Introductionmentioning

confidence: 99%

“…The paraffin-wax-like materials can solve the problem of solid materials disintegrating in the presence of water. Using stone, quartz sand, and bentonite as the aggregate, and silicon oil and Vaseline as the binders, Huang et al [3] prepared similar materials with low strength and high plasticity for a water-resisting layer, but the strength was too low and had a general level of plasticity. As it only simulated a weak water barrier, it is difficult to apply these results to harder aquitard layers.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Properties of Simulation Materials for an Aquifuge for a Fluid–Solid Coupling Physical Similarity Model Test

Xiong

Feng

et al. 2023

Applied Sciences

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In order to meet the special requirements of physical and mechanical strength and high water resistance of similar material in aquifuge (aquitard) strata for the testing of the fluid–solid coupling physical similarity model for a mine water inrush. Based on the similarity theory of solid–fluid coupling in equivalent homogeneous continuous media, a new type of aquifuge simulation material was developed, which used river sand as the skeleton of the material, gypsum and calcium carbonate powder as the auxiliary cementing agent, and paraffin wax and petroleum jelly as the waterproof cementing agent. Similar materials of aquifuge (aquitard) strata are created according to a specific proportion of the components and an established technological process. Through orthogonal tests and systematic analysis, the influence mechanism of the different proportions of the raw materials on the variation of the physical–mechanical strength and hydraulic parameters is studied in this paper. The experimental results demonstrate when the mass ratio of solid material to liquid material is 8:1 and 9:1, the mass ratios of river sand, calcium carbonate, and gypsum is 30:3:7, 30:3:7, and 50:3:7, and the mass ratios of paraffin wax to petroleum jelly are 1:2, 1:1, and 2:1, respectively. The controlled ranges of uniaxial compressive strength, softening coefficient, and permeability coefficient of the similar materials are 16.99–426.47 kPa, 0.660–0.805, and 1.01 × 10−7–8.34 × 10−7 cm/s, respectively. The above data show that the materials have the characteristics of low strength, controllable water absorption, and low permeability.

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Simulation Analysis of Torsion Beam Hydroforming Based on the Fluid-Solid Coupling Method

Cited by 12 publications

References 16 publications

Review of multi‐scale mechanical behavior research on composite solid propellants based on data‐driven approach

Review of multi‐scale mechanical behavior research on composite solid propellants based on data‐driven approach

Analysis of Water Inrush Disaster Mechanism of Inter-Layer Rocks between Close Coal Seams under the Influence of Mining

Experimental Study on the Properties of Simulation Materials for an Aquifuge for a Fluid–Solid Coupling Physical Similarity Model Test

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