Dyrda V.I., Agaltsov G.N., Tolstenko A.V., Lisitsa N.N., Novikova A.V. Labor protection in the context of isolation of heavy machinery and structures from industrial vibration

Details

Parent Category: Geo-Technical Mechanics, 2018

Category: Geo-Technical Mechanics, 2018, Issue 138

Geoteh. meh. 2018, 138, 177-184

DOI: https://doi.org/10.15407/geotm2018.01.177

Labor protection in the context of isolation of heavy machinery and structures from industrial vibration

Dyrda V.I., Agaltsov G.N., Tolstenko A.V., Lisitsa N.N., Novikova A.V.

Authors:

Dyrda V.I., Dr. Tech. sciences, professor (IGTM NAS of Ukraine)

Agaltsov G.N., Engineer, Junior Researcher (IGTM NAS of Ukraine)

Tolstenko A.V., Ph.D. tech. Sciences, Associate Professor (DGAU)

Lisitsa N.N, Assistant of the Department of Computer Technologies, Faculty of Applied Mathematics, Dniprovsky National University. O. Gonchar

Novikova A.V., Master, Junior Researcher (IGTM NAS of Ukraine)

UDC 678.4.06

 Language: Russian

Abstract.

One of the priority directions on the issue of ensuring labor protection for operators, machines and structures against the effects of industrial vibrations is considered. Vibration is one of the main causes of destruction of machines, buildings and structures; it reduces life of machines and degrades their reliability causing their malfunction and breakdowns in process. Vibration and noise harmfully effect on the operator, his/her physiological and psychological state. Vibration pathology is second (after dust) among the occupational diseases. Long-term exposure of operators to vibrations increases their fatigue, reduces their efficiency and degrades quality of their work, leads to development of occupational diseases and risk of accidents and disasters. Noise worsens physical and psychological state of operators, causing hearing injury, excitation of nervous system, development of cardiovascular diseases, etc.

Methods and means for protecting maintenance staff, machines and equipment against intensive action of vibrational loads through usage of elastomeric elements are considered. One of the ways to solve this problem is designing of effective vibration-isolation systems based on the rubber and rubber-metal massive vibration isolators of the OP-180 type. Such systems were designed in the Institute of Geotechnical Mechanics named by N. Polyakov of National Academy of Science of Ukraine and, together with the Ukrainian State Research Institute of Occupational Safety and Ecology for the Mining and Metallurgical Industries, were installed in the vortex mixers of the SevGOK sinter plant (Krivoy Rog). Industrial experimental studies showed effectiveness of vibration isolation systems, their high reliability and long operating life: no one failure for twelve years. The vibration isolation system was replaced due to natural aging of material in the conditions of the factory’s sinter plant. Effectiveness of the system consisted in reduced vibration load to the sanitary standards.

It is shown that the designed rubber-metal vibration isolators can be used in vibration isolation systems of machines of various technological functions, as well as in buildings and structures: in technical sense, they ensure long life and reliability of machines; in the social sense, they protect the personnel against effects of harmful vibrations and noise.

In the work, forced oscillations of a single-mass system are considered on the example of a vortex mixer with a vibration protection system. Solution of the problem in a linear formulation is given for the case when mechanical reaction of rubber is described by integral relations of the Boltzmann-Volterra type. Ratios are given for the coefficient of vibration isolation of the energy dissipation of the system. The ratios were obtained with taking into account rheological parameters of rubber obtained by using the Yu.N. Rabotnov’s four-parametric nucleus.

Keywords:

labor protection, industrial vibration and noise, vibration isolation system, vibration isolator, vortex mixer, vibration isolation coefficient, forced oscillation equation.

References:

1. Ivovich, V.A. and Onishchenko, V.Ya. (1990), Zashchita ot vibratsii v mashinostroyenii [Protection from vibration in engineering], Mashinostroenie, Moscow, USSR.

2. Pavlov A.I. (ed.) (2003), Bezopasnost zhiznedeyatelnosti: Teksty lektsiy [Life safety: Lecture texts], MIEML, Moscow, RF.

3. Afanasiev, V.D., Dyrda, V.I., Lisitsa, N.I. and Arutiunian, A.R. (2005), On some features of vibration isolation vortex mixers sinter plant, Geo-Technical Mechanics, no. 60, p. 162-168, Dnipro, Ukraine.

4. Ministry of health of Ukraine (2000), SSN 3.3.6.039-99: Derzhavni sanitarni normy vyrobnychoyi zahalnoyi ta lokalnoyi vibratsiyi [SSN 3.3.6.039-99: State sanitary norms of production of general and local vibration], Kyiv, Ukraine.

About the authors

Dyrda Vitaly Illarionovich, Doctor of Technical Sciences (D. Sc.), Professor, Head of Department of Elastomeric Component Mechanics in Mining Machines, Institute of Geotechnical Mechanics named by N. Polyakov of National Academy of Science of Ukraine (IGTM NASU), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Agaltsov Gennady Nikolaevich, Master of Science, Junior Researcher of Department of Elastomeric Component Mechanics in Mining Machines, Institute of Geotechnical Mechanics named by N. Polyakov of National Academy of Science of Ukraine (IGTM NASU), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Tolstenko Alexandr Vasil’yevich, Candidate of Technical Science (Ph. D.), Associate Professor of Department «Reliability and repair of machinery», Dnipro State Agrarian and Economic University (DSAEU), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Lisitsa Natalya Nikolaevna, Master of Science, Assistant of computer technologies department, faculty of applied mathematics, Oles Honchar Dnipro National University (Oles Gonchar DNU), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Novikova Alina Vyacheslavovna, Master of Science, Junior Researcher of Department of Elastomeric Component Mechanics in Mining Machines, Institute of Geotechnical Mechanics named by N. Polyakov of National Academy of Science of Ukraine (IGTM NASU), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

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