Vol 5, No 3 (2006)
AIRCRAFT AND SPACE ROCKET ENGINEERING
Method of presenting compressor characteristics in mathematical models of gas turbine enginer
Abstract
The paper analyses methods of presenting compressor characteristics in mathematical models of gas turbine engines. A method of specifying a point on the compressor characteristic using cubic interpolation spline is proposed and checked for adequacy. A method of presenting compressor characteristics is described which is intended to be used in modeling systems DVIGw and DVIGwT.
7-12
TECHNICAL SCIENCES
Generator transducer of enhanced sensitivity phase deviation
Abstract
The paper presents a generator transducer of enhanced sensitivity phase deviation. A combinatory generator is used in the supersensitivity mode. Dynamic and statistical characteristics are analysed using a computer model. The results of the analyses are presented.
13-16
Spatial fluctuations model and average speed limit in dependance of the vibration intensity conditions
Abstract
17-20
Residual stresses and limiting amplitude of strengthened parts with concentrators in case of asymmetric cycle
Abstract
The influence of compressive residual stresses on the limiting amplitude of strengthened parts with concentrators under expansion-compression in case of asymmetric loading cycle is studied. The influence was estimated using the criterion of constructing a diagram of limiting amplitudes of the stress cycle for both strengthened and non-strengthened RTS with concentrators are proposed. It makes possible to predict the increment of the limiting amplitude due to the parts being strengthened. Experimental data are in good agreement with the rated data.
21-24
Simulation of a two-dimensional laminar boundary layer using the method «whirl in a cell»
Abstract
The paper deals with the use of the «whirl in a cell» (WC) method for direct mathematical simulation of a laminar boundary layer. According to the method the processes of convection and those of diffusion both in the free flow and from the surface of the body are considered separately at each step in time. Because of the difference in velocities of diffusion and convection processes integration with different steps in time is used. The velocity profiles obtained are compared with the Blazius solution and the results of other authors. It is shown that using the «WC» method good agreement with Blazius’ results is obtained only in a certain narrow area of Reynolds’ numbers.
25-30
The influence of the concentrator type on the dependence of endurance limit of strengthened parts on residual stresses
Abstract
The paper analyses residual stresses and endurance limit under bending in case of asymmetric cycle of cylindrical specimens and parts made of various materials (30ХГСА, 40Х, Д16Т, steel 45, 12Х18Н10Т) with concentrators of various types. The criterion of average-integral residual stresses was applied to estimate the influence of residual stresses on the endurance limit. This criterion makes it possible to predict the increment of the endurance limit of strengthened parts with various stress concentrators.
31-34
Analysis of servicing passengers in the international Airport Kurumotch
Abstract
The paper presents the results of analyzing the parameters of passenger and luggage flows as well as the properties of the servicing system at the terminal of the International Airport Kurumotch (Samara). The laws of distribution of random values which characterize the incoming flows and the servicing system at the airport. The results obtained can be used to deal with the tasks of airport parameters optimization, estimating the efficiency of its functioning and imitation modeling of the airport’s technological processes.
35-43
Analysis of microparticle flows in case of electrostatic fluid dispersion
Abstract
The paper describes a generator of charged fluid particles for simulating the interaction of high-vehicle. The generator is based on the method of electrostatic fluid dispersion. The results of analyzing the stability of charged fluid particles produced of particle parameters on the voltage and the length of a needle electrode are presented.
44-52
Improving industrial organization at amachinery construction plant on the basis of reengineering
Abstract
The paper deals with the issues of introducing automation into the model of basic business processes of its technological preparation by using a standard design solution. A procedure of forming the basic conceptual data model for designing a PDM-system is presented.
53-57
Reducing logistic expenditures on the basis of modelling materials movement processes at industrial enterprises
Abstract
The author suggests reducing logistic expenditures in a logistic system on the basis of using a balance model which allows for variations of flows inside the system and incoming orders while maintaining the balance.
58-65
CYBERNETICS AND INFORMATION SCIENCE
Metacomputing tool platform in the context of GraphPlus project
Abstract
The paper discusses the realization of metacomputing compact tool platform developedin the context ofGraphplus project (graphplus.ssau.ru). The procedure of computations, instrument composition and the stages of transmitting scenario original presentation to the file of server management are described. The instruments described are compared with projects with a similar purpose.
66-71
HUMANITIES
Establishing and develompent of research and design organizations in Kuibyshev Region (late 1950s – early 1960s)
Abstract
The paper analyses the process of establishing and developing research and design organizations in Kuibyshev Region in the late 1950s – early 1960s. Some distinctive features of intellectuals working in the area of science and technology in Kuibyshev Region are revealed on the basis of the analysis of staff composition at some institutes.
72-78
79-83
84-87
88-98
Power and church in the early twenties of the XX century
Abstract
99-103
Forming value orientations of students of general education boarding schools with elementary grounding in flying as a factor of developing military professional trend
Abstract
The paper is devoted to the issues of forming value orientations of students of general education boarding schools with elementary grounding in flying. It deals with the factors of developing a student’s value orientations which influence professional self-determination, methods of affecting the students with a view to forming their value orientations as well as the peculiarities and principles of developing military professional trend.
104-109
110-115
116-120
Methoprinciples as the basis of professionally vital competences formation of specialists in the area of engineering during the period of teaching a foreign language
Abstract
The paper deals with the pedagogical possibilities of applying modern methodological principles of teaching for the development of professionally vital competences of students, contributory to the formation of professional mobility of specialists in the area of engineering.
121-130
131-137
Discrete models of dynamic system stimulation
Abstract
The paper deals with the task of stimulation in a dynamic system with connected functioning periods.Mathematical statement of the task is presented. A numerical method is proposed for solving the task of optimal management.
138-142
Speech euphimisation in a sociocultural aspect
Abstract
The paper deals with the issues of employing ways of word usage justified in terms of communication by modern Russian native speakers. Interrelations and differences of political correctness, tolerance and language tact are analysed.
143-150
151-155
Personal activity approach to forming professionally significant characteristics of humanitarian specialists
Abstract
The paper proposes an approach to the problem of forming professionally significant characteristics of humanitarian specialists in the context of a personality model being determined by an activity model which makes it possible to carry out professional activity successfully.
156-161