Zhigula T.I. Features of dynamics of tubular belt for different construction charts of belt tubular conveyers

Details

Parent Category: Geo-Technical Mechanics, 2016

Category: Geo-Technical Mechanics, 2016, Issue 131

 

Geoteh. meh. 2016, 131, 165-172

 FEATURES OF DYNAMICS OF TUBULAR BELT FOR DIFFERENT CONSTRUCTION CHARTS OF BELT TUBULAR CONVEYERS

¹Zhigula T.I.

 ¹IGTM NAS of Ukraine 

UDC 622.647.2:681.5

Abstract. The tasks are formulated for studying the tubular belt dynamics in two basic groups of belt tubular conveyers (BTC). It is noted that torsional vibrations present a key danger for the first group of the BTC, in which flat belt is rolled up into a tube by special roller carriages. Factors causing the tubular belt torsional vibrations are analyzed. Maximal angle of the belt turn due to the suddenly attached moment is evaluated. For the second group of the BTC, in which belt is hanged on the travelling rollers moving alongthe hanging rail, the danger is caused by transversal vibrations of the hanging rails being under action of the moving loads. Possible loss of tubular belt stability in the second group of the BTC is considered. The formulas are established for critical speeds of tubular belt motion, achieving of which can result in considerable growth of the belt transversal vibrations.
Keywords: belt tubular conveyer, the belt transversal and torsional vibrations, critical speed, stability of motion.

REFERENCES

1. Dmitriev, V. G. and Egorov, A. P. (2011), “Influence of speed of belt on distributing force of resistance to motion of tubular conveyer”, Gorny informatsionno-analitichesky byuleten, no. 6, pp. 191–198.
2. Dmitriev, V. G. and Efimov, M. S. (2008), “Features of motion of belt of tubular conveyer on the area of route bend in a horizontal plane”, Izvestyia vuzov. Mining Journal, no. 3, pp. 99–102.
3. Babakov, I.M. (1968), Teoriya kolebaniy [Theory of vibrations], Drofa, Moscow, RU.
4. Zhigula, 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:

Zhigula Tatyana Ilyinichna, 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), Dnepr, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

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