Fundamental research

Given the nature of the process of hobbing developed a general theory of information technology software design hobs, which is the basis for creating a new level of CAD this tool. Creation of CAD based on it will allow the design stage hobs by determining the effect of process parameters and design parameters of gear milling tool accuracy and performance gear cutters to predict not only the accuracy of the wheels with less of their production, and to develop new and more progressive design hobs.

The main result of work consists in development new physical equations theory of cyclic elastic-viscos-plasticity at complex technological and operational thermo-power loading; methods of theoretic-experimental lifetime calculation new products and residual lifetime definition of the responsible high-loaded designs elements machine-building complex different function at a stage of their operation.

New mechanisms for the intensification of the process of heavy metal ions sorption by magnetically modified biosorbent, based on yeast S. cerevisiae for wastewater treatment, were revealed. New equipment for magnetohydrodynamic mixing (MHDM) of biosorbent with magnetic fluid in the combined electric and magnetically fields were developed for the first time. This installation allowed obtaining the magnetically operated biosorbent with stable magnetic properties and sorption capacity of not less than native yeast.

A modern design concept of diagnostic medical equipment based on the focusing diffractive optical elements (DOEs). There were developed new methods for the determination of boundaries and the profile of the DOE for an arbitrarily given intensity, amplitude and phase of the optical field. A new method of determining the phase and energy transformations in the DOE in different diffraction orders. We propose a method of designing multifocal intraocular achromatic DOE bifocal type.

In tubular recuperative heat exchangers such as "gas-gas", "gas-liquid" are mainly used heat transfer of circular tubes. However, circular tubes, as part of the heat transfer surface, in terms of improving their heat and aerodynamic performances to date have exhausted themselves. Now, technically and economically the most accessible and reasonable by reducing weight and improving energy efficiency and resource saving heat exchange equipment is application in heat exchangers surfaces that have high heat and aerodynamic efficiency, low cost and ease of production.

The generalized mathematical models for the class of transport objects with vector-controlled AC motors are developed. A novel decomposition based control concept for electromechanical systems with rolling pair kinematic is presented. Control algorithms development procedure based on this concept provides a solution for the basic traction control tasks.

The research of the water dispersion parameters in impact with a hard dry and wetted surface was made. Noted best water spraying at surface with high roughness. This may be due to the difficulty of the air outlet from under flat (before impact) drops during impact. The share of dispersed liquid upon impact a teardrop-shaped expanding jet ( 40% of the water flow in the jet ) with wooden batten was investigated. Also was determined the radius of scattering droplets depending on the fall height and of the water flow consumption from the nozzle.

For the first time the scientific basis of a fundamentally new method of forming biocompatible (titanium alloy) coating of carbon nanotubes (CNT) in polycrystalline silicon oxide layers with nickel and iron catalytic centers are obtained by CVD for implants, dentures support-the driving apparatus of human and medical instruments were developed. For the first time a model of physical and chemical processes of the composite coatings formation under laser irradiation of CNT substrates with pre-coated with a layer of hydroxyapatite powder were proposed.

A comprehensive scientific approach to account for the "cross-effects" influence of physical and thermal deposition process parameters on structure and properties of nanoscale metal films Cu-Sn, Cu-Au, Cu-Mn, Cu-Sn-Mn, Al-Mn-Cr, Ni- Al, Ni-Au, Ti-Ag, Fe-Pt, and etc has been developed. The general regularities of diffusion processes due to subsequent thermal annealing in ultra-high vacuum, oxygen- and hydrogen containing atmosphere, ion-plasma and laser treatment have been discovered.

1. State registration number, registration number at the university. 0111U002229, KVNTD I.2 13.14.02, UDC 621.311 № 2408- F
2. Supervisor - Yandulskyy Oleksandr, DSc., Professor.
3. The essence of development, the main results.