Kiriya R. V., Smirnov A. N. Determination of dynamic factor for the belt with lump loads moving by the tubular conveyer roller supports

Details

Parent Category: Geo-Technical Mechanics, 2016

Category: Geo-Technical Mechanics, 2016, Issue 131

 

Geoteh. meh. 2016, 131, 144-151

DETERMINATION OF DYNAMIC FACTOR FOR THE BELT WITH LUMP LOADS MOVING BY THE TUBULAR CONVEYER ROLLER SUPPORTS

¹Kiriya R. V., ¹Smirnov A. N.
¹IGTM NAS of Ukraine

UDC 622.647.2:681.5 

Abstract. In the paper, one of the important conveyer transport problems is considered:estimating of dynamic efforts on the roller supports when the belt with load moves along the tubular conveyer framework. At this work, inertia forces caused by bending of tubular belt moving withload are considered as a key factor, which initiates dynamic efforts. A problem of the tubular conveyer belt vibration when it with load moves along the roller supports is formulated and solved in this article. Solving of this problem makes it possible to determine dynamic efforts on the roller supports when the tubular belt with load moves along them, and dynamic factor and the belt critical velocity, at which dynamic instability occurs in the tubular conveyer framework. Analysis of the obtained results gives the ground for the statement that dynamic factor increaseswith increasing belt velocity and decreases with increasing tension and bending rigidity of the tubular belt. At the same time, the dynamic factor insignificantly depends on bending rigidity of the tubular conveyer belt being within the range of real values of bending rigidity of the tubular belt. This fact allows using a model of flexible stretched thread for calculation of dynamic factor of tubular conveyers.
Keywords: roller supports, tubular conveyer, belt, load, dynamic factor.

REFERENCES

1. Timoshenko, S.P. (1967), Kolebaniya v inzhenernom dele [Vibration on engineering], Nauka, Moscow, SU.

2. Pаnovko, Y.G. and Gubanova I.I. (1987), Ustoychivost i kolebaniya uprugikh sistem [Stability and vibrations of the resilient systems], Nauka, Moscow, SU.

3. Monastyrsky, V.F., Kiriya, R.V. and Smirnov, A. N. (2013), “Study of the lump transportation by the belt–conveyer roll supports”, Geo-Technical Mechanics, no. 112, pp. 35–47.

 

About the authors:

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

Smirnov Andrey Nikolaevich, Candidate of Technical Sciences (Ph.D), Researcher in Department 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. .

• < Prev
• Next >