Levchenko Elena

@sevsu.ru

Department of Mechanical Engineering Technology
Sevastopol State University, Sevastopol



           

https://researchid.co/elena1978

EDUCATION

higher

RESEARCH, TEACHING, or OTHER INTERESTS

Engineering, Energy Engineering and Power Technology, Engineering, Engineering

11

Scopus Publications

Scopus Publications

  • Calculation of Contact Tensions in the Process of Thermofrictional Treatment
    N. Pokintelitsa and E. Levchenko
    Springer International Publishing

  • Basic principles for describing the process of vibratory with an external source of dynamic impact
    Elena Levchenko and Nikolay Pokintelitsa
    IOP Publishing
    Abstract The modern development of mechanical engineering requires high quality manufacturing of machine parts. The production experience testifies that high requirements to the quality of surface treatment of the parts need to be improved, in particular, in the finishing and clearing operations (FCO). Progressive method of processing parts is vibratory (V) on machines with U-shaped containers. Despite the positive practical experience of vibratory using in mechanical engineering, this method faces a number of problems related to the development of its theoretical foundations: equipment and tools are still imperfect; in the initial stage are works on managing of the V process; it is insufficiently studied the mechanism of surface layer formation at V. These problems hamper further development and improvement of the vibratory, which is very effective by its technological capabilities, and limit its wider introduction into industry. Efficiency of processing is provided by the right choice of equipment, schemes, and modes of processing, types of working environments. The mass of loading in the container of the machine does not absorb all the energy transmitted by the vibratory machine, but only part of it, the other part is non-productively dissipated. Therefore, the choice of the constructive scheme of the machine, on which the redistribution of these energies depends, is a crucial step, both in its design and in the management of the machining process.

  • Monitoring of dynamic processes in the machining of parts with vibrations
    Elena Levchenko and Nikolay Pokintelitsa
    IOP Publishing
    Abstract There are the results of theoretical researches for the control of dynamics of the part motion in machining of parts with vibrations, based on the use of a group of magnetic modulation sensors, allowing to measure the nature of changes and motion of the part, as well as the amplitude, frequency and acceleration of motion during machining.

  • Thermophysical processes in thermofriction working of surfaces
    Nikolay Pokintelitsa and Elena Levchenko
    IOP Publishing
    Abstract There are results of thermophysical processes of thermofrictional working of details by the disk tool. Results of mathematical modeling of heat distribution in a processing zone at thermofrictional working of details are presented. It is found that the size of Q2 heat quantity going to the cutting disk in unit of time has the considerable impact on firmness of a disk, and the quantity of Q2 heat cutting going to the cutting disk under various conditions can make up to 50-60% of all warmth of cutting.


  • Theoretical foundations of vibration processing modeling
    E. Levchenko, Yu. Deykun, and Yu. Moroz
    Springer International Publishing

  • Investigation of parts thermo-frictional treatment using special dynamic appliances
    N. Pokintelitsa and E. Levchenko
    Springer International Publishing

  • The study of dynamic characteristics during the vibration processing of parts
    Elena Levchenko
    EDP Sciences
    The results of theoretical studies on the dynamic characteristics of the process of vibroprocessing are presented, the essence of which is to create conservative zones limited by the current lines of a certain fixed vector field, which contributes to the formation of a macrodomain structure in the working medium. Domain structuring of the working tool reflects the configuration of the field grid of the external dynamic field and is the basis of the technology of vibration processing.

  • Investigation of thermal processes in abrasive pipe sampling
    Elena Levchenko and Nikolay Pokintelitsa
    EDP Sciences
    The paper presents the results of research on the process of interaction between the cutting circle and the cut pipe billet on the basis of heat-deforming analysis with the establishment of a relationship between processing conditions and cutting conditions with the design parameters of the abrasive tool.



Publications

Calculation of Contact Tensions in the Process of Thermofrictional Treatment
Pokintelitsa, N.,
Levchenko, E.
Lecture Notes in Mechanical Engineeringthis link is disabled, 2021, страницы 353–361