Vol 1, No 1 (2002)

In the article several research areas carried out in Samara State Aerospace University and scientific schools acknowledged academically are represented.

The article features results of research of dynamics and motion control in aerospace and space-rocket in 1975-2002. Aspects of spacecraft and re-entry vehicles motion in systems, carried out in the Kuibishev Aviation Institute – Samara State Aerospace University, space flight of vehicles with low-thrust electric rocket engines, modal control in spacecraft and launchers, satellite radio-navigation planning for space vehicles are discussed.

for helicopters (SGTE) and with the choice of values for the parameters of the operation process of SGTE. A considerable amount of uncertainty in the initial data may in the long run affect the SGTE efficiency and the deadline for the engine final improvement. Therefore methods for the finding of such values for the operation process parameters that would be resistant to the uncertainty of the initial data are considered in this paper. Given as an example are the results of calculations of the formation of a stability domain of the compromising design options of the helicopters SGTE.

The primary problems of weight designing of power structures of wings are considered. The accuracy of the known weight formulas is analysed. The new dimensionless criterion of power efficiency of designs is considered in detail. The new approach to the weight analysis at early stages of designing with usage of special models Final Element Method is offered. The examples of calculations are resulted.

The physical and mathematical model for the obtaining of nitride coatings of vacuum ion-plasma method is created.
The mathematical model accounts the basic stages of the multistage process: adsorption, desorption, dissociation, chemisorption, accommodation, ion sputtering, surface migration.
The mathematical model permits to find the coating grouth rate and its composition from basic physical parameters of vacuum ion-plasma process.

The influence of undissolved air fraction in suction pipeline of a centrifugal oil pump working under condition of a latent cavitation on its vibroacoustical characteristics is experimentally investigated in this paper. The quantative relations of pressure oscillation at the outlet of the pump and also hull vibration of the pump from the undissolved air flow rate at the input are obtained. It is shown that the air flow rate at quantity 3% from the general consumption of working fluid allows to reduce pressure oscillations at the output pipe line in 1,5 times, vibration in 1,7…1,9 times without noticeable change of the static performance of the pump.

Diagnostic indeces were suggested for estimation of human state. These indeces hare based on heart rate variability analysis and its reflect of vegetative nerves system activity. Monitoring system for proposed indeciones computation in real time was developed. It consists of measuring block which is connected to personal computer in RS232C standard and optical sensor for distal pulse registration. The developed system may be used in psychophysiology and scientific investigation for human state estimate.

A reconditioning technology for turbine disks with a depleted service life is considered in the article. The important role of heat-treatment hardening is defined in improving the fatigue characteristics of a blade footing and turbine disk.

The calculation and research of gas-dynamic design of multistage axial microturbines with the limited frequency of rotation are given. The generalization of the results of this research as the recommendations by definition of number of brake steps and constructive-geometrical parameters of structures of working wheels of these steps is executed.

The results of an experimental research of speed of burning out carbon duilding are given. They formed on internal walls at termochemistry transformations fuel in an air flow. The technique of an estimation of speed of removal carbon building from channels of fuel systems GTE is offered.

The spatial motion of the reentry vehicle (RV) with double rotation on an active site of a descent trajectory is considered. At construction of the dynamic equations movement RV is considered as mechanical system coaxial bodies with variable weight with small relative displacement of the center weights. Decisions have been approached for corners of spatial orientation RV and speed of movement of his center weights on a short active site of a trajectory descent and condition of reduction of nutation amplitude allowing to carry out an estimation efficiency of stabilization partial spinup and to calculate of a mistake in size and a direction of a vector of brake draft, ensuring leaving RV from an orbit

Color correction procedures of the digital images by means of multiresponse regression models are presented. Scanner and digital camera calibration method under high images reproducibility condition based on the color coordinates linearization followed by correction function construction in the form of the third degree polynomial in the CIELAB space using calibrated color targets is described. The recommendations are given on computational procedures for the coefficients estimation of the digital image correction function using Bayes method and the image reference colors when color correction of each separate image is necessary.

The ongoing formation of market relations has proven to be a significant influence on administrative processes in the area of corporate management. In considering the complex process of establishing a singular, global economic information space, it is important to begin with such components as accounting, internal analysis, and audit. The result is that the following aspects are defined: purpose of formation, principles of economic data integration, information flows, and approaches to the realization of direct communications and feedback for users of different levels and categories, which users receive access to the entire database and human knowledge bas in the area of accounting analytics and audit practices.
As a means of accomplishing established goals, it is suggested that an efficient theoretical and methodological means be used for modeling the field of research being considered. The means to be used include: internal and external object models, formulation of knowledge of a large quantity of models, synthesis and research models, and computersupported model management process, with the goal of creating a user-friendly environment.

The article deals with some problems of cost calculation of higher educational institutions and suggests a system and techniques of expense calculations for various forms of training. A conclusion is made as to the necessity of creation of an adequate spectrum of investors for higher educational institutions in the face of the state, private capital, sponsors and population assets.