Ministry of Education and Science of Russia 10 January 2025 19:33
Specialists of the R.E. Alekseev NSTU, together with colleagues from the A.V. Gaponov-Grekhov Institute of Applied Physics of the Russian Academy of Sciences, have created vibration isolators that will help make urban transport noiseless. The invention, according to the authors, will not only protect human health, but also have a positive impact on equipment, electric motors and machines. The development was presented at the X All-Russian Scientific and Technical Conference “Actual Problems of the Electric Power industry”, which was held in Nizhny Novgorod in December.
Scientists note that the device will help to avoid resonances in a wide range of frequencies — from 1 to 1000 hertz. Vibration isolators have good load capacity and dynamic range, as well as low power consumption — 17 watts at a current of 0.2 amperes, which is almost 3 times lower compared to a laptop. At the same time, vibration damping is effective even in uncontrolled mode.
“A large team of scientists has been working on this project for several years, during which several patents were obtained at once. Our development is suitable for improving the working conditions of workers in the construction, transportation, manufacturing and mining sectors, and in the future our development can be applied to urban transport, making urban transport silent. Already, the use of such systems can significantly increase the life of production equipment and the accuracy of its operation in order to ensure the proper quality of products,” said the Deputy Director of the Institute of Electric Power Engineering (INEL) NSTU named after R.E. Alekseev Evgeny Kryukov.
Scientists have created six types of vibration isolators and have already tested them on a test rig, which is a hot stamping press.
“Vibration isolators differ from passive hydraulic supports in that instead of the classical system of partitions between liquid chambers, there is a magnetorheological transformer — an electromagnet that controls the viscosity of the magnetorheological fluid in hydraulic channels by changing the magnetic field. The coolant contained in the pneumohydraulic chamber allows you to quickly take heat from the housing and the compensation chamber and release it into the environment through heat pipes,” explained Alexander Plekhov, Associate Professor of the Department of Electrical Equipment, Electric Drive and Automation at INEL, the principle of operation of the device.
Representatives of the construction, transport, manufacturing and mining industries have already become interested in the development.
The project was implemented with the support of the Russian Ministry of Education and Science within the framework of the Priority 2030 program.
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