Dyrda V.I., Lysytsia M.I., Kozub H.O., Tolstenko O.V., Ahaltsov H.M., Novikova A.V., Filipenko O.M., Dziuba S.V. Labor safety during operation of machines operating at long-term cyclic loads

Details
Parent Category: Geo-Technical Mechanics, 2019
Category: Geo-Technical Mechanics, 2019, № 144

Geoteh. meh. 2019, 144, 89-102

https://doi.org/10.15407/geotm2019.144.089

Labor safety during operation of machines operating at long-term cyclic loads

1Dyrda V.I., 1Lysytsia M.I., 2Kozub H.O., 3Tolstenko O.V., 1Ahaltsov H.M., 1Novikova A.V., 1Filipenko O.M., 4Dziuba S.V.

1Institute of Geotechnical Mechanics named by N. Poljakov NAS of Ukraine, 2Luhansk Taras Shevchenko National University, 3Dnipro State Agrarian and Economic University, 4Prydniprovsk Scientific Center of NAS of Ukraine and Ministry of Education and Science of Ukraine

UDC 678.4.06

Language: Russian

Abstract.

Some aspects of labor protection at mining enterprises are considered in the context of protecting machines and operators from industrial vibration and noise.

Production vibration acts as a harmful phenomenon, primarily in relation to the machines themselves – its sources, as it intensifies wear, reduces their reliability and durability, increases the levels of radiated noise. In this regard, according to the intensity of vibration, it is customary to view the quality of the machine, its technical condition. Spreading over the structures and the ground, the vibration affects other objects, causes the destruction of building constructions, impairs the operation of devices, precision machine tools. And finally, in the case of human contact with vibrating surfaces, a number of new specific problems arise, due to the negative effect of vibration on people’s health and performance.

The systematic effect of vibration on workers leads to increased fatigue, reduced productivity and quality of their work, as well as the development of an occupational disease, called vibratory disease. The overall vibration is transmitted through the supporting surfaces to the body of a person sitting or standing. It involves the entire human body in the oscillatory process when the operator performs work sitting or standing, being directly on the vibrating surfaces of machines, units or in close proximity to them on vibrating foundations or parts of the floor. Local vibration is transmitted to a person through hands. It occurs when using hand machines, when the hands of a worker touch the vibrating surfaces.

Vibration and noise have a detrimental effect on the human operator, on his physiological and psychological state; vibration pathology ranks second (after dust) among occupational diseases. The prolonged effect of vibrations on operators leads to increased fatigue, reduced productivity and quality of their work, the development of occupational diseases, and the risk of accidents and disasters. Noise affects the physical and psychological state of the operators, leads to hearing impairment, arousal of the nervous system, development of cardiovascular diseases, etc.

In this paper, using the example of a vortex mixer with a vibration-proof system, we consider forced oscillations of a single-mass system. The solution of the problem in the linear formulation is given for the case when the mechanical reaction of rubber is described by integral relations of the Boltzmann-Volterra type. The relations for the coefficient of vibration isolation of the energy dissipation of the system are given. Relations are obtained considering the rheological parameters of rubber obtained using the four-parameter core of Yu.N. Rabotnov.

Keywords:

labor protection, industrial vibration and noise, vibration-proof system, vibration isolator, vortex mixer, vibration isolation coefficient, equation of forced oscillations

References:

1. Dyrda, V.I., Agaltsov, G.N., Bulat, Ye.A. and Roshchupkin, S.V. (2010), "Noise and vibration in man-machine systems in the context of labor protection", Geo-Technical Mechanics, no. 86, pp. 195-231.

2. Dimentberg, F.M. and Frolov, K.V. (1987), Vibratsiya v tekhnike i chelovek [Vibration in technology and man], Znaniye, Moscow, USSR.

3. Ministry of health protection of Ukraine (2000), DSN 3.3.6.039-99. Derzhavni sanitarni normy vyrobnychoyi zahalʹnoyi ta lokalʹnoyi vibratsiyi [DSN 3.3.6.039-99. State sanitary norms of production of general and local vibration], Kyiv, Ukraine.

4. Derzhstandart Ukrayiny (1993), DSTU 2300-93. Vibratsiya. Terminy ta vyznachennya [DSTU 2300-93. Vibration. Terms and definitions], Kyiv, Ukraine.

5. Derzhstandart Ukrayiny (2000), GOST 30610-98. Mezhgosudarstvennyy standart. Vibratsiya. Dinamicheskiye kharakteristiki statsionarno-obogatitel'nogo oborudovaniya. Metody opredeleniya [GOST 30610-98. Interstate standard. Vibration. Dynamic characteristics of stationary processing equipment. Methods of determination], Derzhstandart Ukrayiny, Kyiv, Ukraine.

6. Ivovich, V.A. and Onishchenko V.Ya. (1990), Zashchita ot vibratsii v mashinostroenii [Vibration protection in mechanical engineering], Mashinostroyeniye, Moscow, USSR.

7. Bulat, A.F., Dyrda, V.I., Grebenyuk, S.N. and Klimenko, M.I. (2019), "Determination of Effective Characteristics of the Fibrous Viscoelastic Composite with Transversal and Isotropic Components", Strength of Materials, Vol. 51, Is. 2, pp. 183-192, https://doi.org/10.1007/s11223-019-00064-x

https://doi.org/10.1007/s11223-019-00064-x

About the authors:

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

Lysytsia Mykola Ivanovych, Candidate of Technical Sciences (Ph. D.), Senior Researcher, Senior Researcher in Department of Elastomeric Component Mechanics in Mining Machines, Institute of Geotechnical Mechanics named by N. Poljakov NAS of Ukraine (IGTM NASU), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Кozub Halyna Oleksandrivna, Candidate of Technical Sciences (Ph. D.), Associate Professor, Associate Professor in Department of Technology of Production and Trade Education, Luhansk Taras Shevchenko National University (LTSNU), Starobilsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Tolstenko Oleksandr Vasylovych, 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.

Ahaltsov Hennadii Mykolaiovych, Master of Science, Junior Researcher of Department of Elastomeric Component Mechanics in Mining Machines, Institute of Geotechnical Mechanics named by N. Poljakov NAS of Ukraine (IGTM NASU), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

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

Filipenko Olena Mykolaivna, Master of Science, Engineer of Department of Elastomeric Component Mechanics in Mining Machines, Institute of Geotechnical Mechanics named by N. Poljakov NAS of Ukraine (IGTM NASU), Dnipro, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

Dziuba Serhii Volodymyrovych, Candidate of Technical Sciences (Ph. D.), Senior Researcher, Academic Secretary in Prydniprovsk Scientific Center of NAS of Ukraine and Ministry of Education and Science of Ukraine, Dnipro, Ukraine