Intelligent decision method for the position and attitude self-adjustment of hydraulic support groups driven by a digital twin system

Jiao, Xiubo; Xie, Jiacheng; Wang, Xuewen; Yan, Zewen; Hao, Zixiang; Wang, Xuesong

doi:10.1016/j.measurement.2022.111722

Cited by 21 publications

(5 citation statements)

References 17 publications

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“…Meanwhile the mining height of the working face is also getting higher. These all cause the support to bear a large number of dynamic loads and reducing its reliability [8,12,22,27].…”

Section: Eksploatacja I Niezawodnosc -Maintenance and Reliabilitymentioning

confidence: 99%

Influence of impact load form on dynamic response of chock-shield support

Meng¹,

Ma²,

Xie³

2023

Eksploatacja i Niezawodność – Maintenance and Reliability

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Chock-shield support is usually used in undergroud coal mining to protect the roof. However, as the mining depth gets deeper, impact load that came from the roof becomes stronger and more frequent. This causes the support to bear a large number of dynamic loads, and reducing its reliability. To improve the support performance of the chock-shield support, the mixed-kinetic model was established using the mechanical-hydraulic co-simulation method. The load distribution law of the support joint under impact load form different stability forces, impact load amplitude, and impact frequency is discussed. The mechanical-hydraulic cooperative response of the chock-shield support are obtained. The results show that different joints show typical non-uniformity characteristic during the loading process. The proposed mechanical-hydraulic co-simulation method can more accurately obtain the dangerous points of hydraulic support reliability. The results of this study will help to improve the reliability of the chock-shield support.

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“…Meanwhile the mining height of the working face is also getting higher. These all cause the support to bear a large number of dynamic loads and reducing its reliability [8,12,22,27].…”

Section: Eksploatacja I Niezawodnosc -Maintenance and Reliabilitymentioning

confidence: 99%

Influence of impact load form on dynamic response of chock-shield support

Meng¹,

Ma²,

Xie³

2023

Eksploatacja i Niezawodność – Maintenance and Reliability

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“…The results show that with the increase in the caving interval, the amount of single caving increases [26]. Jiao et al reconstructed the position and attitude of the hydraulic support, completed the virtual decision making, virtual execution, and strategy optimization of the virtual space adjustment behavior, and finally realized the self-adjustment of the position and attitude of the support [27]. Li et al realized different parameter configurations in the process of following machine automation according to the principle of three-machine cooperation, an established support behavior process decision model, and a supporting equipment linearity collaborative control model of coal mining technology, and previewed the decision model in a virtual scene.…”

Section: Introductionmentioning

confidence: 99%

Study on Working Characteristics of 4-Column Hydraulic Support in Lifting–Lowering–Moving State Based on Microcontact Theory and Rigid–Flexible–Mechanical–Hydraulic Coupling Simulation Model

Xie,

Yang

2024

Actuators

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A hydraulic support is one of the most important pieces of equipment in fully mechanized coal mining, and its stability and reliability will have a direct impact on fully mechanized coal mining. In order to deeply elucidate the dynamic working characteristics of a hydraulic support during lifting, lowering, and moving, and to provide theoretical support for further optimizing the stability and reliability of a hydraulic support, the dynamic characteristics of a hydraulic support are studied in this paper. Firstly, in order to study the dynamic working characteristics of hydraulic support lifting, a rigid–flexible coupling dynamic simulation model of a hydraulic support is established; in order to study the dynamic working characteristics of hydraulic support moving, a microcontact dynamic model of a hydraulic support and the caving face roof and floor based on G-W contact theory is proposed, and the first rigid–flexible–mechanical–hydraulic coupling dynamic simulation system of a hydraulic support and the roof and floor of a caving face is established in the industry. Then, based on this foundation, simulation experiments are conducted for hydraulic support lifting, moving without pressure, and moving with pressure, respectively. The working characteristic parameters of the hydraulic support are collected and analyzed. The results show that working speed, working height, surface contact conditions, residual working resistance, and impact load have different effects on the stability and reliability of the hydraulic support. This study can provide in-depth technical support and theoretical guidance for understanding and improving the dynamic working characteristics of the hydraulic support.

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“…Therefore, repeated recalculations and continuous changes are required. As a result, the expected outcome is often not achieved (Jiao et al 2022). Thus, in the teaching phase of the mining equipment, it is highly important to fully consider the actual operating conditions, quickly identify the problems in equipment operation and maintenance, and validate the actual working conditions at the early stage of testing.…”

Section: Introductionmentioning

confidence: 99%

A VR-based interactive teaching and practice environment for supporting the whole process of mining engineering education

2023

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Due to the complex and dangerous nature of underground industrial sites, there is an urgent need to improve practical teaching abilities. In this paper, a VR-based interactive teaching and practice environment is proposed for teaching mining equipment processes under laboratory conditions. This environment integrates a digitised design, a virtual simulation platform, and a VR interactive product operation. This VR interactive environment includes the structural cognition of mining equipment, the actual operating conditions, and the actual operation of electronic control. Moreover, this system integrates a series of virtual reality humanmachine interaction hardware, so that the students can quickly learn the operating conditions and the states of the actual underground production. This system helps them comprehensively learn the mechanical, electrical, communication, control, and mining methods involved in the mining equipment. Finally, this system provides a virtual practice path for training innovative engineering technicians.

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Intelligent decision method for the position and attitude self-adjustment of hydraulic support groups driven by a digital twin system

Cited by 21 publications

References 17 publications

Influence of impact load form on dynamic response of chock-shield support

Influence of impact load form on dynamic response of chock-shield support

Study on Working Characteristics of 4-Column Hydraulic Support in Lifting–Lowering–Moving State Based on Microcontact Theory and Rigid–Flexible–Mechanical–Hydraulic Coupling Simulation Model

A VR-based interactive teaching and practice environment for supporting the whole process of mining engineering education

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