Methods and means of diagnosing the phenomenon of parametric resonance in the process of lifting vessels movement in the trenches of ore and coal mines

Попов, Станіслав Вячеславович; Ishchenko, Liudmyla; Ishchenko, Mykola; Dyachenko, D.

doi:10.1109/tcset49122.2020.235392

Cited by 2 publications

(2 citation statements)

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“…Assuming the e 1 as the horizontal displacement at the center of mass of the roller, e 1 and θ 3 exists the relationship in Eq. ( 6) and (7). The relationship between θ 1 and e 1 in Eq.…”

Section: Ls  =mentioning

confidence: 99%

“…Yao et al [6] established a longitudinal vibration model of hoisting system under misalignment excitation of GR and investigated its effect on friction mine hoists. Popov et al [7] studied the factors leading to HC resonance during the hoisting system movement and provided a reference for identifying potential hazards in its operation route. Dokić et al [8] proposed a nonsmooth vibration method for analyzing the connection location between the wire rope and HC with non-complete boundary conditions over time, which laid the foundation for the value of the dynamical parameters.…”

Section: Introductionmentioning

confidence: 99%

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Research on operation characteristics of hoisting conveyance under mining deformation action in mine vertical shaft

Zhao

Han

et al. 2023

Preprint

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In order to improve the operating stability of the mine hoisting system and provide reference and guidance for monitoring the mining shaft deformation (MSD), the operating characteristics of the hoisting conveyance (OCHC) under MSD are studied. Firstly, a simplified finite element model based on spring element is established for analyzing the guide rail (GR) deformation law under MSD, and the deformation result calculated by ANSYS is transformed into the geometric model in the dynamics model. Secondly, the transversal-longitudinal coupling relationship of the guide roller (GRO) is analyzed, and it is deduced that the variation law of the contact relationship between the guide roller and rail (GROR) with its deformation and the HC position. On the basis of the above, the dynamics model of the mine hoisting system established by ADAMS is verified by experiment and used to analyze the operating characteristics (OC) under different types and degrees and connection states. The analysis results show that the deformation result transformation of GR can characterize the SD trend and the connection state between the bunton and shaft and GR under MSD and can realize the co-simulation of ANSYS and ADAMS, which makes the dynamic model can accurately reflect the OCHC under MSD. The displacement and vibration acceleration of HC in MSD direction, angular displacement (AD) around its vertical axis and buffer relative displacement (BRD) are highly sensitive to the deformation and contain prominent feature, which can realize the characterization of the deformation. The vibration acceleration of hoisting conveyance (VAHC) and the BRD in the deformation direction produce a prominent impact response to the disconnection between the bunton and guide rail (BGR). The disconnection of the bunton from shaft only changes the frequency and amplitude of the low-frequency oscillation of BRD near disconnection position. It can provide a basis for identifying MSD and mitigating its effect on HC.

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“…Assuming the e 1 as the horizontal displacement at the center of mass of the roller, e 1 and θ 3 exists the relationship in Eq. ( 6) and (7). The relationship between θ 1 and e 1 in Eq.…”

Section: Ls  =mentioning

confidence: 99%