Vibrations in engineering and technology

Royzman Vilen – Doctor of technical Sciences, Professor, head of Department of Telecommunications and Radio Engineering Khmelnytsky National University (Institutskaya 11, Khmelnitskiy, 280016, Ukraine, e-mail: iftomm@ukr.net).

Drach Ilona – Candidate of Technical sciences, associate Professor the Department of Software Engineering Khmelnytsky National University (Institutskaya 11, Khmelnitskiy, 280016, Ukraine, e-mail: cogitare410@gmail.com).

Tkachuk Vitalii – Candidate of Technical sciences, associate Professor the Department of Engineering Techniques, Khmelnitskiy National University (Institutskaya 11, Khmelnitskiy, 280016, Ukraine, e-mail: tkachukv.p@gmail.com).

Rotary mechanisms are used in many areas of modern industry, from mechanical engineering to computer and home appliances. Lots of machines obtain in the process of work a variable or random imbalance of the rotor according to time and location. To reduce the vibrations of such mechanisms, a method of randomly searching for a balanced state of the rotor is proposed, as an alternative to balancing.

The essence of the method of randomly directed search is that when the machine leaves the unbalance changing from start-up to start-up to the operating mode (for example, spinning in washing machines), the vibrations are controlled and when the level is exceeded, the machine is turned off and rinsed. The exit procedure is repeated until the optimal distribution of the masses (the layout of the laundry) and the vibrations are within the limits of the specification given by the technical conditions. In this case, the machine is "allowed" to carry out the technological operation, that is, to work at the working spin speeds. The article covers all stages of the development of the method and the results of experimental studies. It is established that the application of the method of randomly directed search for a balanced state of the rotor with variable imbalance makes it possible to reduce effectively the vibrations of both rigid and elastically deformed rotors and is an energy-saving technology.

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