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Information × Registration Number 0224U003103, 0123U101853 , R & D reports Title Increasing the bearing capacity, sealing and dynamic stability of rotor systems of turbomachines popup.stage_title Head Zahorulko Andrii V., Кандидат технічних наук Registration Date 09-04-2024 Organization Sumy State University popup.description2  One of the most energy-intensive types of modern equipment is dynamic equipment, such as turbopump and turbocompressor units and turbines. As is known, the working parameters of turbomachines are limited by the bearing capacity, frictional losses and the vibration state of the rotor system, which are determined by the static and dynamic characteristics of non-contact annular seals and bearings. Static characteristics are determined by the design and hydrodynamic properties of the lubricating fluid. The dynamic properties of seals and bearings depend on the mode and geometric parameters, changing which can influence the rotor vibrations in the desired direction. Leakages in seals are limited due to the loss of potential pressure energy to overcome local resistances and frictional resistance along the length of the channel. The greater these losses, the smaller the share of potential energy are transferred to the kinetic energy of the flow, the less leakages into the environment and energy losses in the turbomachine. Therefore, as a result of the implementation of the project due to computer modeling using methods of computational mechanics and comparison with existing experimental studies, the hydrodynamic forces acting in the clearances of seals-bearings with hydrostatic and hydrodynamic balancing of the rotor, which can be used in high-speed centrifugal pumps, were analyzed. Product Description popup.authors Izemenko Vladyslav V. Borsuk Serhii A. Vanzhula Arthur Yu. Hudkov Serhii M. Zahorulko Andrii V. Zahorulko Yuliia V. Mischenko Svitlana O. Pozovnyi Oleksandr O. Savchenko Yevhen M. Sapozhnykov Yaroslav I. Tarelnyk Viacheslav B. popup.nrat_date 2024-04-09 Close