VIBRATION-PULSE METHOD OF ASSESSING TECHNICAL CONDITION OF BALL BEARINGS. CALCULATION OF SHOCK PULSES PARAMETERS

PODDUBKO Sergey N., Ph. D. in Eng., Assoc. Prof., Director General, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">p-s-n@tut.by

ISHIN Nikolay N., D. Sc. in Eng., Assoc. Prof., Chief of R&D Center “Mining Machinery”, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">nik_ishin@mail.ru

GOMAN Arkadiy M., Ph. D. in Eng., Assoc. Prof., Head of the Department of Dynamic Analysis and Vibration-based Diagnostics of Machines, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">arcady.mih@tut.by

SKOROKHODOV Andrey S., Ph. D. in Eng., Leading Researcher of the Department of Dynamic Analysis and Vibration-Based Diagnostics of Machines, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">skanst@yandex.ru

DAKALO Yuriy A., Senior Lecturer of the Department “Mechanical Engineering”, Brest State Technical University, Brest, Republic of Belarus

Currently widely used methods of vibration diagnostics of bearings are intended mainly for quasi-stationary conditions of their operation. The proposed method for calculating the parameters of the shock pulse generated in radial ball bearings due to the presence of structural radial clearances is a further development of theoretical and methodological research on the scientific direction of vibration-pulse diagnosis in relation to the operational assessment of the  technical condition of the ball bearings of transmission units of mobile machinery operating under variable load-speed conditions. An example of calculation of shock pulse parameters in ball radial single-row bearings of series 307 is  given. The bearings are mounted on the shafts of the universal bench test box with open power flow.

bearing, technical condition, diagnostics, vibration, shock pulse, shock pulse parameters

1. Ishin N.N., Goman A.M., Skorokhodov A.S. Issledovanie vzaimosvyazi parametrov udarnykh impulsov v zubchatykh zatsepleniyakh i vibratsiy privodnykh mekhanizmov. Metodologiya otsenki amplitud vibroimpulsov, izmeryaemykh na podshipnikovykh uzlakh mekhanizmov [Research of interrelation of shock impulse parametres of spur tooth gearings and a vibration signal of driving mechanisms. Methodology of  an estimation of vibration impulses amplitudes measured on  bearing knots of mechanisms]. Izvestiya Natsionalnoy akademii nauk Belarusi. Seriya Fiziko-tekhnicheskikh nauk [Proceedings of the National Academy of Sciences of Belarus. Series of Physical-Engineering Sciences], 2013, no. 2, pp. 83–88.
2. Ishin N.N., Goman A.M., Skorohodov A.S. Vibratsionno-impulsnyy metod otsenki tekhnicheskogo sostoyaniya zubchatykh peredach [Vibration-pulse method for assessment of technical condition of gears]. Vestnik Izhevskogo gosudarstvennogo tekhnicheskogo universiteta im. T.M. Kalashnikova [Bulletin of  Kalashnikov Izhevsk State Technical University], 2017, vol.   20, no. 1, pp. 42–45.
3. Tomovič R., Miltenovič V., Banič M., Miltenovič A. Vibration response of rigid rotor in unloaded rolling element bearing. International Journal of Mechanical Science, 2010, vol. 52, no. 9, pp. 1176–1185.
4. Ishin N.N., Adashkevich V.I., Skorokhodov A.S. Metodicheskie podkhody k sozdaniyu instrumentalnykh sredstv diagnostiki transmissionnykh sistem avtomobilya v usloviyakh ekspluatatsii [Methodological approaches to the creation of diagnostic tools for vehicle transmission systems in service]. Mekhanika mashin, mekhanizmov i materialov [Mechanics of machines, mechanisms and materials], 2010, no. 1(10), pp. 57–62.
5. Gavrilov S.A., Ishin N.N., Goman A.M., Skorohodov  A.S. Utochnennyy raschet parametrov udarnykh impulsov v  zubchatom zatseplenii [Refined calculation of the parameters of shock pulses in the gearing]. Visnik Natsionalnogo tekhnichnogo universitety “KhPI”. Seriya: Problemy mehanіchnogo privodu [Bulletin of the National Technical University “Kharkiv Polytechnic Institute”. Series: problems of mechanical drive], 2016, no. 23, pp. 19–23.
6. Ishin N.N., Goman A.M., Skorokhodov A.S., Natureva  M.K., Adashkevich  V.I. Prognozirovanie ostatochnogo resursa zubchatykh privodov na osnove vibratsionno-impulsnogo diagnostirovaniya [Forecasting of the residual resource of gear drives based on the vibration-pulse diagnostics]. Mekhanika mashin, mekhanizmov i materialov [Mechanics of machines, mechanisms and materials], 2016, no. 1(34), pp. 36–39.
7. Chermenskiy O.N., Fedotov N.N. Podshipniki kacheniya [Roller bearings]. Moscow, Mashinostroenie Publ., 2003. 576 p.
8. Ishin N.N., Goman A.M., Skorokhodov A.S. Issledovanie udarnogo vzaimodeystviya pryamozubykh zubchatykh koles primenitelno k zadacham vibrodiagnostiki. Postanovka zadachi, vybor dinamicheskoy modeli, vyvod differentsialnykh uravneniy udara [Research of shock interaction of  spur cogwheels according to vibrodiagnostic problems. Statement of  the  problem, the choice of dynamic model, the conclusion of  the  differential equations of blow]. Izvestiya Natsionalnoy akademii nauk Belarusi. Seriya Fiziko-tekhnicheskikh nauk [Proceedings of the National Academy of Sciences of Belarus. Series of  Physical-Engineering Sciences], 2011, no. 3, pp. 41–46.
9. Gruntovich N.V. Montazh, naladka i ekspluatatsiya elektrooborudovaniya [Installation, adjustment and operation of  electrical equipment]. Minsk, Novoe znanie Publ., Moscow, INFRA-M Publ., 2013. 271 p.
10. Biderman V.L. Teoriya mekhanicheskikh kolebaniy [Theory of  mechanical vibrations]. Moscow, Lenand Publ., 2017. 416 p.
11. Prochnost, ustoychivost, kolebaniya. Tom 2 [Strength, stability, oscillations. Volume 2]. Moscow, OOO “Kniga po trebovaniyu” Publ., 2012. 463 p.
12. Berestnev O.V., et al. Kompleksnyy kontrol i povyshenie kachestva zubchatykh privodnykh mekhanizmov dlya mashinostroeniya [Comprehensive control and quality improvement of gear drive mechanisms for mechanical engineering]. Minsk, Belorusskiy gosudarstvennyy institut standartizatsii i sertifikatsii Publ., 2009. 115 p.