Diagnostics automation the possibility of parametric resonance as an element of management of the rising mine complexes

Authors

  • S. О. Popov Department of automation, computer science and technology, Kryvyi Rih National University, str. V.Matusevich, 11, 50027, Kryvyi Rih
  • R. A. Timchenko Department of industrial, civil and urban construction, Kryvyi Rih National University, str. V.Matusevich, 11, 50027, Kryvyi Rih
  • D. A. Krishko Department of industrial, civil and urban construction, Kryvyi Rih National University, str. V.Matusevich, 11, 50027, Kryvyi Rih

DOI:

https://doi.org/10.30838/P.CMM.2415.270818.108.239

Keywords:

automation, control, kinematic clearance, lifting vessel, lifting complex

Abstract

Purpose. One of the urgent problems that arise in the domestic iron ore mines in the process of their production activity is the high probability of the occurrence of parametric resonance when moving the lifting vessels along the shafts. Lifting vessels (skips) represent massive vehicles weighing up to 80 tons with weight, skips moving at a speed of 8-11 m / s, have a length of up to 25 g and a cross-sectional area of up to 4 m, the volume of the skip body reaches up to 100.0 m3. When they move along the guide conductors of mine reinforcement along a vertical route, the skips begin to oscillate in a horizontal plane. Usually these oscillations are chaotic, and these oscillations are not dangerous in the absence of exceeding a certain amplitude limit. However, non-stationary oscillations of skips can go into the mode of vibration oscillations with energy accumulation and a rapid increase in the amplitude of oscillations under certain conditions for the initiation of movement of skips and the state of guide conductors. Under such conditions, the scop which is an elastic structure can enter into a state of resonant oscillations and carry out strong blows to the reinforcement. As a result, the reinforcement may collapse and an accident will occur. At this time in the practice of iron ore mining production there are no means of diagnosing the possibility of the occurrence of parametric resonance along the route of the lifting vessels along the shafts of mines. This has extremely negative consequences on the cause of the accident rate of the operation of the mine lifting systems. Results. The authors carried out relevant studies and for the first time developed an experimental version of a computer diagnostic complex that is able to detect, according to the results of measurements, potentially dangerous sections along the route of the lifting vessels as far as possible for the occurrence of parametric resonance on them. Practical value.Industrial tests of this complex were performed, which showed its reliability and validity of the measurement results on the basis of signs of the presence of areas in which vibrational vibrations were consistently repeated. This indicates the potential hazard of such areas. According to the test results, the authors continue to work on the improvement of the elements of this complex and the development of regulatory and operational documentation.

Author Biographies

S. О. Popov, Department of automation, computer science and technology, Kryvyi Rih National University, str. V.Matusevich, 11, 50027, Kryvyi Rih

Dr.Sci.Tech, Prof.

R. A. Timchenko, Department of industrial, civil and urban construction, Kryvyi Rih National University, str. V.Matusevich, 11, 50027, Kryvyi Rih

Dr.Sci.Tech, Prof.

D. A. Krishko, Department of industrial, civil and urban construction, Kryvyi Rih National University, str. V.Matusevich, 11, 50027, Kryvyi Rih

Ph.D., senior lect.

References

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Published

2018-11-27

Issue

Section

Computer systems and information technologies in education, science and management