IMPACT OF MOVING LOADS ON RELIABILITY AND OPERATING LIFE OF THE ROPE LINE IN THE BELT CONVEYER

Details

Parent Category: Geo-Technical Mechanics, 2014

Category: Geo-Technical Mechanics, 2014, Issue 115

UDC  622.647.2:681.5

Author

T.I. Zhigula, Ph.D. (Tech.), Senior Researcher

 (IGTM NAS of Ukraine)

Abstract.

 Possible sudden and gradual refusals of the rope line occurred in the process of belt conveyer operation are considered in this article.

Behavior of the rope line under the action of moving loads - belt with a weight – is considered. Formulas for calculating amplitudes and frequencies of the cyclic loads impacting on the bars of the line are presented which help to define probability of fatigue failures for the elements of the line at a fixed interval of time, and to specify geometrical characteristics for the elements ensuring their reliability on assumption of their preserved fatigue resistance. Impact of the rope tension on frequencies of their transversal vibrations and value of the efforts operating on supports of the roe line was studied, and correlations of parameters, which can result in the sudden refusals of the line and loss of the line stability, were determined.

The findings make possible to choose, at the stage of a conveyor designing, proper structural and operating parameters which would exclude any losses of the base stability and ensure preserving of the line fatigue strength during the whole term of the conveyer exploitation

Keywords:

 belt conveyer, moving load, reliability of the rope line.

References:

1. Shakhmeyster, L.G. (1987), Teoriya i raschet lentochnykh konveyerov [Theory and calculation of belt conveyers], Mashinostroenie, Mosсow, SU.

2. Zhigyla T.I. (2012), “Dynamic influence of mobile loading on rope base of belt conveyer”, Geo-Technical Mechanics, no. 105, pp. 185–192.

About the author

Zhigyla Tatyana Ilinichna, Candidate of Technical Sciences (Ph. D), Senior Researcher, Senior Researcher in Department of Foundations of Mining Transport Physics and Mechanics M. S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Science of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

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