CONTENTS #3 (March) 2021
Comprehensive Assessment of the Characteristics of an Airborne Radar Station with a Promising Radio-Transparent Fairing for an UAV (p. 3 – 10)
A.N. Detkov, A.N. Karpuk
On the basis of the digital-full-scale test method a structure for a comprehensive assessment of the characteristics of an airborne radar station with a promising radio-transparent fairing is proposed, which in general significantly affect the tactical and technical characteristics of an aviation complex with UAV.
Keywords: unmanned aerial vehicle; airborne radar; radio transparent fairing; full-scale experiment; modeling; semi-natural modeling.
Nonlinear Deformation and Stability of the Aircraft Fuselage Composite Compartment in Torsion
(p. 11 – 20)
L.P. Zheleznov, A.N. Seriosnov
The research results are obtained on the basis of a technique developed by the authors that implements the finite elements method for solving the problems of strength and stability of discrete-reinforced cylindrical shells made of composite material, taking into account the momentness and nonlinearity of their subcritical stress-strain state. The torsional stability of the reinforced aircraft fuselage compartment made of composite material was investigated.
It was found the influence of the nonlinearity of deformation, the stiffness of the stringer set, and the thickness of the shell on the critical loads at which the shell becomes unstable.
Keywords: cylindrical composite shells; discrete reinforcement; nonlinear deformation, stability; finite element method.
An Underestimated Physical Phenomenon: the Coanda Effect and its Role in Aviation (p. 21 – 26)
The theoretical substantiation of the occurrence of the Coanda effect, the history of its discovery are described and the negative impact on the flight operation of the PS-90A engine of the Il-76MD-90A aircraft is considered.
Keywords: Coanda effect; aircraft; reversing device; gas shaft.
Competitiveness of the Manufacturing Industry in the Domestic and Foreign Markets (p. 27 – 37)
N.M. Abdikeev, Yu.S. Bogachev, P.V. Trifonov
The development of a methodology for assessing the competitiveness of manufacturing products in the domestic and foreign (international) markets is determined.
The state of the Russian manufacturing industry in the new realities and conditions of the coronavirus pandemic using criteria that allow us to assess its potential to meet the needs of the domestic market in industrial goods, increase export products and increase competitiveness in the labor market. The effectiveness of the current system of state support is evaluated and priority areas for improving the sectors of the domestic manufacturing industry are identified.
As part of the study, the following conclusions were obtained: the volume of the domestic consumption market for industrial goods in Russia does not fully correspond to the strengthening of Russia's geopolitical positions, sustainable socio-economic development that ensures the quality of life of the country's population, a significant part of the products on the domestic consumption market are provided by imported supplies (up to 50%). The share of civil electronic products produced by Russian industry organizations for the sectors of aircraft construction, instrumentation and spacecraft in the total volume of the domestic electronics market (by revenue) was 31%.%.
Keywords: domestic consumption; high-tech industry; competitive products; manufacturing industry; mechanical engineering; development driver; production potential.
The Role of Strategic Aviation in the Current Military-Political International Situation (p. 38 – 48)
The role of strategic aviation in solving large-scale military conflicts based on national concepts of modern warfare using high-precision non-nuclear weapons is revealed. The strategic air forces of Russia and the United States of America are presented, and data on their use on an international scale is provided. A brief analysis of the large-scale military anti-terrorist operation of the Russian Armed Forces with the dominant participation of strategic aviation of the Russian Federation for defeat the ISIL, organization banned in our country, and completely liberation the territory of the Syrian Arab Republic from terrorists is performed.
Keywords: missile-carrier bomber; missile-bomber complex; enemy air defense zone; electronic warfare aircraft; reconnaissance aircraft; refueling aircraft; low-altitude air defense breakthrough concept; use of the stealth technology.
Reliability of the Operation of Space (Returnable) Vehicles Landing Systems (p. 49 – 60)
Some issues of analysis and evaluation of the reliability of the landing system of returning (descending into the Earth's atmosphere) spacecraft are presented. Different variants of the operation schemes of the returned spacecraft for both regular and emergency programs are considered; the structure of the landing facility complex is considered in detail.
Keywords: landing system; complex of landing means; parachute system; space (descent) vehicle.