Research of dynamic unbalance of a rotating mechanical system
Authors: Vitushkin V.V., Zhigulevtsev Yu.N.
Published in issue: #5(101)/2020
DOI: 10.18698/2308-6033-2020-5-1979
Category: Mechanics | Chapter: Dynamics, Strength of Machines, Instruments, and Equipment
The paper presents the results of development of an automated laboratory complex for the study of dynamic reactions of bearings of a rotating mechanical system. This complex includes an electromechanical model unit equipped with sensors for measuring reactions and angular speed of the system rotation, a power supply and control unit and a PC for processing the results of measurements and calculations of dynamic reactions. The theoretical basis for calculating the dynamic reactions of the unbalanced rotating mechanical system bearings is given, and a description of the research laboratory complex is provided. The results of experimental determination of these reactions as well as the corresponding calculated dependences of the latter on the angular speed of rotation and the degree of system unbalance are presented. The presence of a region of mechanical system insensitivity to its dynamic unbalance caused by the effects of friction in the bearings is confirmed. There is a good agreement between the proposed method for calculating dynamic reactions of rotating mechanical system bearings and experimental data on their measurement. The effectiveness of the developed laboratory complex in the training process at higher school when teaching the appropriate section of theoretical mechanics is noted.
References
[1] Dubinin V.V., Zhigulevtsev Yu.N., Nazarenko B.P., Remizov A.V. O vnedrenii novykh informatsionnykh tekhnologiy v uchebnyy protsess po kursu «Teoreticheskaya mekhanika» [On the implementation of new information technologies in the educational process in the course “Theory of Mechanics”]. In: Sbornik dokladov Nauchno-metodicheskoy konferentsii, posvyashchennoy 35-letiyu obrazovaniya fakulteta «Fundamentalnyye nauki». MGTU im. N.E. Baumana. Moskva, 20 dekabrya 1999 g. [Proceedings of the Scientific-methodical conference dedicated to the 35th anniversary of the foundation of the faculty “Fundamental Sciences” of BMSTU. Moscow, December 20, 1999]. Moscow, BMSTU Publ., 1999, pp. 65–66.
[2] Dubinin V.V., Vitushkin V.V., Nazarenko B.P. Sovremennyy laboratornyy kompleks po teoreticheskoy mekhanike [A modern laboratory complex in theoretical mechanics]. In: Sbornik dokladov Sektsionnogo zasedaniya Mezhdunarodnoy konferentsii IX Mezhdunarodnogo foruma «Vysokiye tekhnologii XXI veka». Moskva, 23 aprelya 2008 g., MGTU im. N.E. Baumana [Proceedings of the Sectional meeting of the International Conference of the IX International Forum “High Technologies of the 21st Century”. Moscow, April 23, BMSTU]. Moscow, BMSTU Publ., 2008, pp. 153–156.
[3] Dubinin V.V., Vitushkin V.V., Dubrovina G.I. Fizicheskiy eksperiment, matematicheskoye modelirovaniye i informatsionnyye metody obrabotki dannykh v mekhanike [Physical experiment, mathematical modeling and information processing methods in mechanics]. In: Mezhdunarodnyy sbornik nauchnykh trudov «Mekhanika. Nauchnyye issledovaniya i uchebno-metodicheskie razrabotki» [International collection of scientific papers «Mechanics. Scientific research and educational development»]. Gomel, BelGUT Publ., 2009, no. 3, pp. 18–36.
[4] Dubinin V.V., Vitushkin V.V., Dubrovina G.I. Avtomatizatsiya eksperimenta v laboratornom komplekse po mekhanike [Automation of an experiment in a laboratory complex in mechanics]. In: Sbornik nauchno-metodicheskikh statey [Collection of scientific and methodological articles]. Moscow, MSU Publ., 2009, no. 27, pp. 56–67.
[5] Dubinin V.V., Vitushkin V.V. Inzhenernyy zhurnal: nauka i innovatsii —Engineering Journal: Science and Innovation, 2014, iss. 12. DOI: 10.18698/2308-6033-2014-12-1343
[6] Vitushkin V.V., Zhigulevtsev Yu.N. Avtomatizirovannaya laboratoriya po teoreticheskoy mekhanike [Automated laboratory in theoretical mechanics]. In: Sbornik nauchno-metodicheskikh statey Mezhdunarodnoy nauchnoy konferentsii, posvyashchennoy 170-letiyu N.E. Zhukovskogo. MSTU named after N.E. Bauman [Proceedings of the International Scientific Conference dedicated to the 170th anniversary of N.E. Zhukovsky. BMSTU]. Moscow, BMSTU Publ., 2017, pp. 56–67.
[7] Ishlinsky A.Yu. Mekhanika otnositelnogo dvizheniya i sily inertsii [The mechanics of relative motion and inertia]. Moscow, Nauka Publ., 1981, 350 p.
[8] Kolesnikov K.S., Dubinin V.V., eds. Kurs teoreticheskoy mekhaniki [The course of theoretical mechanics]. Moscow, BMSTU Publ., 2017, 580 p.
[9] Pleshakov Yu.D., ed. Dinamicheskie reaktsii podshipnikov [Dynamic reactions of bearings]. Moscow, BMSTU Publ., 2004, 54 p.
[10] Baryshnikov Yu.N., Borokhova N.V. Opredelenie reaktsiy podshipnikov vrashchayushchegosya tverdogo tela [Determination of bearing reactions of a rotating solid]. Moscow, BMSTU Publ., 2015, 54 p.