Now showing items 13-32 of 899

    • Equations of average isobaric heat capacity of air and combustion gases with influence of pressure and effect of thermal dissociation 

      Ambrozhevich, M.V.; Shevchenko, M.A. (ХАИ, 2019)
      The article presents analytical dependences of the average specific isobaric heat capacities of the main components of air and combustion products of hydrocarbon fuels, the same in the entire specified range of pressures ...
    • Gas turbines: design problems 

      Nezym, V.Y. (KhAI, 2012)
      Lecture synopsis covers fundamental problems of the theory of gas turbine engines and power plants. It considers processes and cycles of gas turbines and their components operation including problems of perspective ...
    • Grinding burns in a process of high speed deep grinding 

      Gorbachov, O.O.; Petrenko, A.P.; Thangavadivelu, К.; Palani, P.; Haridas, S. (ХАИ, 2015)
      Formulated the problem of the need to develop new equipment and processing technology by deep sanding flat surfaces and flat shaped parts of aircraft engines of difficult to cut materials. A study was conducted to ...
    • Inverse problems of thermoelasticity for rectangular plates 

      Povgorodny, V.O. (ХАИ, 2016)
      New inverse thermoelasticity problems for frictionally interacting layers have been formulated, in which unknown thermal loading (temperature of boundary surface and intensity of frictional heat flux) has been determined using ...
    • Metal-casting processes 

      Knyazyev, M.K.; Sergeyev, S.V.; Boguslaev, O.V. (ХАІ, 2002)
      The fundamentals оf metal-casting processes are submitted. Тhе main casting methods and corresponding equipment are described. The problems of casting design, casting alloys and economics of casting processes are discussed. ...
    • Movement of unipolar arcs in magnetic field 

      Levchenko, I.; Romanov, M.; Voloshko, A.; Gulyi, S. (ХАІ, 2004)
      In this paper we present the results of experimental investigation of the unipolar arc movement in a magnetic field, and a model and results of numerical simulation of the unipolar arc ignition process. We have found ...
    • Optical emission spectroscopy measurements on a SPT-20 hall effect thruster on the RHAI ground test facility 

      Pagnon, D.; Pellerin, S.; Dudeck, M.; Maksimenko, T.A.; Koshelev, N.N.; Loyan, A.V. (ХАИ, 2006)
      The plasma plume of a SPT-20 has been analysed by Optical Emission Spectroscopy in order to analyse the emission of XeI, XeII and Al I emitted from the Al2O2 ceramic walls.
    • Plasma-enhanced thermal growth of copper oxide nanostructures on anode of glow discharge setup 

      Breus, A.; Abashin, S.; Lukashov, I.; Serdiuk, O.; Baranov, O. (ХАІ, 2021)
      Plasma-enhanced growth of copper oxide nanostructures is widely explored in science and manufacturing, since it provides the flexibility, productivity, and cost-effectiveness necessary to meet the growing demands of ...
    • Research of logistic processes in production of technical difficult products 

      Rudenko, N. (ХАІ, 2022)
      Automation of production processes, which is widely used at foreign enterprises and largely reduces the labor intensity of products, is of particular relevance. In addition, in some cases, the installation of more ...
    • Research on wear resistance coating of aircraft titanium alloy parts by cold spraying technology 

      Hu, Wenjie; Markovych, S.; Kun, Tan; Shorinov, O.; Cao, Tingting (ХАІ, 2020)
      Titanium alloys are the main structural material of aerospace system component, about 75 % of titanium and titanium alloys are used in the aerospace industry, which have the advantages of low density, high specific strength ...
    • Review of application and research based on cold spray coating materials 

      Tan, Kun; Markovych, S.; Hu, Wenjie; Shorinov, O.; Wang, Yurong (ХАІ, 2021)
      Cold spray technology is an advanced spray technology, and its technical principle is the same as that of additive manufacturing technology. Cold spraying technology combines multiple advantages in the spraying field: not ...
    • Review of manufacturing and repair of aircraft and engine parts based on cold spraying technology and additive manufacturing technology 

      Tan, Kun; Markovych, S.; Hu, Wenjie; Shorinov, O.; Yurong, Wang (ХАІ, 2020)
      Cold spray technology is a method of deposited metal coatings by high speed particle impact, especially in the preparation of metal alloy materials (Cu alloys, Ti alloys, Al alloys, Ni based alloys, Mg alloys, stainless ...
    • Robotic bicycle parking with autonomous electric power system 

      Rudenko, N.; Shyrokyi, Y. (ХАІ, 2021)
      The research is devoted to the development of an automatic complex that is being transformed with an autonomous power system. . This problem is now the most urgent one because the bicycle has become one of the ultra-high-speed ...
    • Screw-nut mechanisms 

      Dorofeyev, V.G.; Dotsenko, V.N.; Koveza, Y.V. (ХАІ, 2011)
      The tutorial considers general types of screw-nut mechanisms with sliding threads with the position of simple mechanism calculation and design methods as well al engineering solutions. Tutorial material is the data of ...
    • Sliding bearing applications in aircraft and space engineering 

      Dotsenko, V.; Koveza, Yu. (ХАІ, 2022)
      Examples and prospects of various types of sliding bearings applications in power elements of aircraft engines and in turbopump units (TPU) of liquid propellant rocket engines (LPRE) are discussed in this article.
    • Smart vibratory sensor for compressor surge control 

      Kozyriev, О.О.; Berezhnoy, V.J.; Kudin, М.М. (ХАИ, 2009)
      Fast response piezoceramic sensor with embedded microchip device development and testing is resulted. Sensor was designed for flow instability modes detection in gas-turbine engine passages by means of its outer casing ...
    • Software package for monitoring and prediction of the compressor performance degradation 

      Feldshteyn, Y.; Mazurkov, A.P. (ХАИ, 2012)
      The Software package outlines the details of identifying potential process compressor performance degradation. Based on the data received from the compressor manufacturer or a performance test, the software will generate ...
    • Special technologies for product life increasing 

      Dolmatov, A.I.; Boguslaev, O.V.; Markovich, S.E. (ХАІ, 2006)
      We consider modern special resistant coatings technologies raising durability of products. We carry out the analysis of advantages and lacks of' existing technologies. We give the recommendations at the choice of coating ...
    • Statistical testing of dynamic model identification procedure for gas turbine diagnosis 

      Yepifanov, S.; Loboda, I.; Feldshteyn, Y. (ХАІ, 2003)
      This paper is devoted to such a challenging problem as gas turbine model identification. A dynamic model identification procedure developed and proposed as a diagnostic tool is examined. A statistical verification of the ...
    • Surface repair of aircraft titanium alloy parts by cold spraying technology 

      Hu, Wenjie; Markovych, S.; Shorinov, O.; Cao, Tingting; Tan, Kun (ХАІ, 2020)
      Titanium alloys have the advantages of high specific strength, good corrosion resistance, high heat resistance, and low density, which is the main structural material of aerospace system components, including compressor ...