Shernaev Anvar Normamatovich

@tkti.uz

Tashkent Institute of Chemical Technology, vice-rector for work with enterprises and educational institutions
Tashkent institute of Chemical Technology

Shernaev Anvar Normamatovich


                           Download Compact PDF  
https://researchid.co/a.shernaev

RESEARCH, TEACHING, or OTHER INTERESTS

Mechanical Engineering, Mechanics of Materials, Materials Science, Polymers and Plastics
6

Scopus Publications

Scopus Publications

  • Features of Parameters of a Pair of Rolls
    A. Umarov, A. Nabiev, K. Khusanov, A. Shernaev
    Aip Conference Proceedings, 2023
  • Gripping and Pulling-in Moisture-Saturated Flat Material by Roller Pair
    Gayrat A. Bahadirov, Abdusalam Abdukarimov, Makhmarajab U. Musirov, Anvar N. Shernaev, Zarnigor A. Rakhimova
    Aip Conference Proceedings, 2022
    The article deals with the problem of determining the motion of a moisture-saturated flat material between a roller pair. In solving the problem, the change in the mass of flat material is taken into account, due to a decrease in the moisture content in it, using the Meshchersky equation. A change in the mass of flat material is expressed through a change in its volume. The problem is considered by dividing the skeleton of the volume of flat material into volumes of liquid and pores. The profile of the deformation position of the flat material and the coatings of the working rollers are considered as a parabola satisfying one part of the graph.
  • X-Ray Structural and Spectroscopic Analysis of the Structure of Antifriction Wood-Polymeric Composite Materials Based on High-Density Polyethylene
    Anvar Shernaev, Giyas Gulyamov, Amon Berdiev, Irodakhon Saidnazarova
    Solid State Phenomena, 2022
    In this article are presented the results of X-ray and IR spectroscopic studies of the structure of the atmosphere - and chemically resistant composite materials based on medium density polyethylene. The presence of specific interactions with polyethylene ingredients in composite materials. It has revealed the appearance on the surface of the active radicals that promote increased interaction fillers with polyolefins, as well as the increase of the elastic-strength characteristics of composite materials are revealed.
  • Substantiation of the influence of the channel shape and the roughness of machine canals on the pressure loss of irrigation pumping stations
    Bakhtiyor Uralov, Ruzimurod Choriev, Lyudmila Maksudova, Mukaddas Sapaeva, Anvar Shernaev, Panji Nurmatov
    Iop Conference Series Materials Science and Engineering, 2021
    To take into account the influence (on the value of head losses) of the channel cross-sectional shape and the presence of a flow with a free surface in it, additional correction factors are introduced (when using the concept of hydraulic radius), as well as new dependencies and formulas for determining the coefficient of hydraulic friction are presented, taking into account the influence of the morphometric elements of the channel on the hydraulic resistance of the machine channels of pumping stations. The article presents the results of hydraulic studies in free-flow and pressure water pipelines, the results of which showed that the dependencies obtained for calculating hydraulic resistance in round pressure pipes cannot be extended without appropriate adjustments to the pressure-free channels (provided that the pipe diameter is replaced in the corresponding calculations D-value 4R, where R-hydraulic radius). This position is justified by the presence of a number of factors that distinguish the pressure movement of liquid in pipes from its free-flow movement in the channels, where there is a free flow surface, a wider range of roughness of the channel bottom and walls, a different (than in pipes) distribution of tangential stresses along the wetted perimeter, the possibility of two different flow states (depending on the slope of the channel bottom). The work also considers the general equation of fluid motion in free-flow channels and the functional dependences of the hydraulic friction coefficient on the Reynolds number, relative roughness and on the shape of the free section of the channel; resistance formulas, first for the simplest channels with respect to the cross-sectional shape (round and infinitely wide rectangular), and then for channels with a more complex cross-sectional shape.
  • Effective composite materials for friction pairs of working bodies of cotton machines
    Dilshod Musabekov, Nodira Abed-Negmatova, Giyoz Gulyamov, Anvar Shernaev, Dilshod Khodjimuradov, Sayibjan Negmatov
    Advanced Materials Research, 2012
    We developed effective composite wood-polymer materials based on poplar and produced the sliding bearings of working bodies of friction units of machines and mechanisms of cotton produced plants. The implementation of developed composite wood-polymer materials will allow significant increase of efficiency and durability of working bodies of equipment and decrease the expenses spent for bearings of cotton machines.
  • Wear-resistant polymer composite filled with finely dispersed wood and carbon/graphite powders
    S. S. Negmatov, A. N. Shernaev, G. Gulyamov, N. S. Abed-Negmatova, M. M. Saidov, D. H. Musabekov, Sh. S. Negmatov, M. I. Negmatova
    Aip Conference Proceedings, 2012
    We studied the properties of wear-resistant HDPE (High Density Poly-Ethylene) composites with different fillers. New methods for sliding bearings was developed instead of rolling bearings in friction equipment, operating under dusty atmosphere.