Science

Problems of Machine Science

Conference devoted to the 70-th Anniversary of RAS IMAS

(Moscow, November, 2008)

A.V.Berezin

A.A.Blagonravov Institute of Machine Science of RAS

M. Kharitonyevsky, 4, Moscow, 101990, Russia

The conference took place at the day of the seventieth Anniversary of Institute of Machine Science (IMAS) of RAS on November 13, 2008. Russian and foreign scientists took part in it. 118 papers consecrated to a wide sphere of machine science problems were submitted:

-         structure, kinematics and synthesis of mechanisms;

-         machine dynamics;

-         problems of control;

-         diagnostics of machines and mechanisms;

-         vibration and wave techniques;

-         oscillations in machines;

-         strength and reliability of machines;

-         friction and wear;

-         mechanics of nanomaterials;

-         biomechanics of system;

-         informational and telecommunication engineering systems;

-         models of technological processes.

 

The conference was attended by the scientists from Russia (Moscow, St. Petersburg, N.Novgorod, Samara, Yekaterinburg, Krasnodar), France, Belarus, and Vietnam.

Brief history of development of the Institute and scientific research branches are expounded in the report by N.А.Makhutov (IMAS of RAS, Moscow) <Research of structural strength and safety in problems of machine science and engineering industry>.

The major attention was given to the problems of diagnostics, to nondestructive inspection techniques monitoring serviceability of machines and mechanisms. In the paper <Method of tool state monitoring> А.К.Aleshin, V.G.Gushin (IMAS of RAS, "STANKIN", Moscow) describe a method for quality control of a tool during the machine operation, as a measuring instrument is installed on a working tool, and the data are transferred in a digital form. E.S.Gorkunov, S.M.Zadvorkin, C.Yu.Mitropolskaya, D.I.Vichuzhanin (IMAS, Ural branch (UB) of RAS, Yekaterinburg) consider application of magnetic method for control of stresses on steel samples made of different kinds of steel according to their magnetic characteristics. In the report <Forming and nondestructive monitoring of wear-resistant and high-strength structures in steels and alloys> A.V.Makarov, E.S.Gorkunov (IMAS UB of RAS, Yekaterinburg) offer to use high-sensitive magnetic and electromagnetic methods for estimation and prediction of wear properties and strength of different classes of steels. They also give the techniques for strength and tribological properties increase of steel products. In the paper "Simulation modeling of vibrosignals of machinery aimed at research of discriminant analysis potential in case when incipient defects are revealed" by M.A.Ivanova, A.G.Sokolova, G.V.Dolaberidze, T.V.Medvedeva (IMAS of RAS, Moscow) the authors offer to troubleshoot machinery damages using the discriminant analysis of vibrosignals that are clipped on amplitude. The simulation modeling of a score, abrasive wear, contact surfaces pitting is carried out illustrated with a gear. It is shown that the responsively of amplitude discriminants to occurrence of peaks is higher, than of standard characteristics. In report <Nonlinearity as a sign of predefective state of a material> by V.V.Mishakin, V.M.Rodyushkina (N.Novgorod Branch (NB) of IMAS of RAS, Gaznadzor Volgo-Kamsky GTTs Co Ltd., N.Novgorod) a link between a plastic deformation and acoustic characteristics of a welded connection under a destroying static loading is examined, fracture of a welded connection by eddy current method is also analyzed. M.M.Gadenin (IMAS of RAS, Moscow) investigates effect of the time-temperature factors and shapes of loading cycle on resistance to a repeated deformation. Equations describing these effects allow defining kinetics of deformation characteristics and conditions for attainment of limiting state. R.S.Akhmetkhanov (IMAS of RAS, Moscow) considers system diagnostics with detection of time series features with fractal methods and wavelet analysis. Both approaches can be applied as a complex or separately. V.M.Rodyushkin (Gaznadzor Volgo-Kamsky GTTs Co Ltd, N.Novgorod) considers opportunity to carry out search of predefective state with measurement of modulation, nonlinear and dispersion parameters. In D.G.Gromakovskiy's paper (GTU, Samara) <On estimation of parameters of fatigue wear kinetic model> the estimation procedure of activation parameters of strength and ductility is described on the basis of sclerometry, automatic input and results processing on a computer.

In the papers <Some features of Ioffe effect in nanostructural materials> and <Impulse techniques of nanostructural material treatment for defect healing> by Yu.V.Baranov, G.Zh.Sakhvadze, V.V.Stolyarov (IMAS of RAS, Moscow) questions are considered of physical materials technology and solid-state physics, of the role of surface layers in development of deformation and fracture. Existence of Ioffe effect for nanostructural metals is experimentally and theoretically proved. In the second paper the impulse techniques for defect healing are analyzed. A technique of laser shock wave effect on defects is designed.

The paper <Biomechanical system of vestibular orientation in space> by A.A.Akentyev, A.K.Skvorchevsky, A.B.Novikov, K.A.Skvorchevsky (IMAS of RAS, Moscow, and Moscow Engineering and Physical Institute) is devoted to biomechanics. It describes the authors' expedient of multiplexing supposing considerable distinctions in optical lengths of shoulders for Mach-Candler fiber interferometers. In the report <Laser research methods for processes of human vestibular apparatus functioning> A.A.Akentyev, I.V.Tikhonov, A.K.Skvorchevsky, A.B.Novikov, and K.A.Skvorchevsky (IMAS of RAS, Moscow, and Moscow Engineering and Physical Institute) consider possibilities of VOIS application for research of vestibular malfunctions and discoordination of operator's movements, when he works under vibroimpact influence. In the paper <Bioinformatics and matrix genetics> S.V.Petukhov, E.S.Petukhovа (IMAS of RAS, MSPPU, Moscow) offer the algebraic models of genetic code structures which give new opportunities for ergonomic system optimization. Examination of the opportunities of fiber-optic measurement systems for mobility and for effective work of a cosmonaut in outer space are researched in the report <Features of fiber-optical manipulators development for control of computers in space> by O.S.Shastun (IMAS of RAS, Moscow). In report <Quantum computing system on fiber-optic Bragg lattices> E.A.Zhuravlev, A.K.Skvorchevsky, A.B.Novikov, K.A.Skvorchevsky (IMAS of RAS, Moscow, and Moscow Engineering and Physical Institute) consider fiber-optic methods for restoring parameters of scalar and physical fields. Adaptive filters capable of changing the structure at external conditions variations are also described.

B.M.Bazrov (IMAS of RAS, Moscow) in his paper offers construction of initial model of an engineering product using a graph of hierarchical structure where nodes are the product elements, and links between them are the edges. Such an approach allows increasing accuracy of calculations. The application of this model is considered for several problems. V.Arakelyan, S.Briot, V.A.Glazunov, A.N.Shumilov (National institute of applied sciences, France, Rennes, IMAS of RAS, Russia, Moscow) in their report consider new classes of mechanisms of parallel-cross and parallel-variable structures. V.A.Glazunov, S.D.Kostereva, P.O.Danilin, A.B.Lastochkin, A.S.Novikov (Moscow, IMAS of RAS) describe application of screw calculus for modern mechanisms of parallel structure. The paper is devoted to F.M.Dimentberg's centenary. E.E.Peysakh (SPGUD, St.Petersburg) features an analysis procedure of links positions of single-loop spatial lever mechanisms with one spherical pair.

A number of reports are devoted to the problems of friction and wear, to creation of materials with improved tribological properties. V.V.Alisin (IMAS of RAS, Moscow) in his paper <Development of friction units containing nanostructural dioxide zirconium crystals for the purpose of increase of the equipment reliability at thermoelectric elements manufacture> considers application of bushings made of nanostructural crystals alloyed by cerium in sliding bearings which increases probability of no-failure operation equal to Р(t)=0.95. V.D.Danilov (IMAS of RAS, Moscow) investigates mechanical and tribological properties of polymer-matrix composites on the basis of super high-molecular polyethylene. A formula of polymer-matrix composite wear intensity is given. In the report <Influence of orienting properties of contact element surfaces on lubricant ability of oils> by I.A.Buyanovskiy, Z.V.Ignatyeva, V.A.Levchenko, V.N.Matveenko (IMAS of RAS, Moscow, and Moscow State University) a complex of comparative tribological tests is described. It estimates friction coefficients and limiting temperatures of operability under various test condition of model lubricant compositions at friction of steel and steel with carbon coverage. In the report by N.A.Voronin (IMAS of RAS, Moscow) engineering calculation dependences for definition of deformation-force parameters of contact and topocomposite characteristics are described, the thickness ranges of a covering are defined, effect of topocomposite abnormal strength is theoretically and experimentally established. In their report V.E.Arkhipov G.V.Moskvitin, А.N.Polyakov (IMAS of RAS, Russia, Moscow) consider a self-propagating high-temperature synthesis. Experimental researches have shown that it improves wear resistance of a cutting tool. V.G.Pavlov (IMAS of RAS, Moscow) researches choice and substantiation of a calculation model for estimation of a resource of tribounit behavior in limiting wear condition. L.N.Lesnevskiy (MAI, Moscow) examines designing of solid lubrication coverage for protection against fretting-wear in extreme exploitation conditions. The fretting-wear simulation under dynamic loads in the field of blade retention with turbomachine impellers is carried out in the paper by L.Sall, A.M.Guskov, L.Blan, F.Tuverez (N.E.Bauman MSTU, Moscow, Central school of Lyons, Snekma group Safran, France). E.A.Marchenko, T.A.Lobova (IMAS of RAS, MESaS, Moscow) examined application of diselenides of refractory metals formed during chemical-thermal metal working in selenium vapors for friction units operation stability.

Reports by Yu.P.Tarasenko, O.B.Berdnik, L.A.Krivina, I.N.Tsareva, Ya.A.Fel' (NB IMAS of RAS, Scientific Production Center TRIBONIKA, N.Novgorod) are devoted to increase of reliability and resource of turbine blades of gas-compressor unit.

Yu.N.Drozdov, V.A.Nadein, V.N.Puchkov, M.V.Puchkova (IMAS of RAS, NGB-Energodiagnostika, Moscow) devoted their report to the problem of choice of a self-bonded antifriction material ensuring sliding bearings durability - seismic insulators under seismic influence. The designed computational method allows to receive results for a wide range of loading parameters and heat dissipation condition and to forecast a temperature in a contact zone.

Oscillations in machines are researched in a number of reports. In the report <On influence of manufacturing accuracy on vibro-activity of machines> A.A.Alifov (IMAS of RAS, Moscow) gives a calculation procedure for dependence of oscillation amplitude on surface finish. In the paper <Mixed parametric and auto-oscillations in conditions of power sources of restricted power> A.A.Alifov (IMAS of RAS, Moscow) considers dependence of mixed parametric oscillations and auto-oscillations amplitude on energy sources. S.V.Balakin, A.M.Guskov, G.Ya.Panovko (N.E.Bauman MSTU, IMAS of RAS, Moscow) consider possibility of creation and of maintaining of vibration drilling processes by a mobile intermediate vibrant support. The received mathematical model of gun drill stalk can be used for system stability researches, and so for examination of non-stationary cutting modes. O.B.Balakshin, B.G.Kukharenko (IMAS of RAS, Moscow) consider application of Prony spectrum analysis and linear band-pass filtering for identification of collective unstable oscillations of blades in the low-pressure compressor. L.Ya.Banakh (IMAS of RAS, Moscow) in his report <Weak dynamic interactions in rotor systems vibrations> considers decomposition techniques which take into account a magnitude of dynamic interactions between weakly coupled subsystems. In the framework of the paper <Technique of reduction of flow of forces via engine mounting on the basis of experimental researches of vibration forces and vibroacoustic properties of the automobile construction> by T.I.Denisenko, A.G.Chistyakov, L.B.Bylinin (IMAS of RAS, Moscow) a special procedure of measuring and analysis of vibration forces is presented, force meters are manufactured and calibrated. L.B.Bylinin, V.A.Tikhonov, A.G.Chistyakov, D.L.Etkin (IMAS of RAS, Moscow) consider constructions of passive and active vibroprotective systems in their work <Layered dampers development for branch pipes and shift piezogenerators for control systems>. V.L.Krupenin (IMAS of RAS, Moscow) describes the models of strong vibroimpact processes in systems containing lattice elements.

In the report by I.I.Blekhman, D.A.Indeytsev, Yu.A.Mochalovа ("Mechanobr-technica", IPMAS of RAS, St.Petersburg) effects of vibration fluid mixing are considered when undirected on the average vibration creates a directed on the average movement. The vibration effects can be applied in ore-dressing machines.

In report by I.I.Vulfson (SPSUTD, St.Petersburg) a theory of regular vibration systems for research of dynamics of complex cyclic machines' drive units is developed.

In the paper <Methods of estimations (disturbance accumulation) in the applied theory of mechanical oscillations> M.Ya.Izrailovich (IMAS of RAS, Moscow) considers accumulation of perturbations for the following cases: effect of finite duration forces on linear stationary systems, effect of periodic forces on linear stationary systems, effect of periodic forces on periodically non-stationary linear systems.

B.A.Gordeev, G.V.Maslov (NB IMAS of RAS, N. Novgorod) consider balancing of rigid rotors at lowering errors of vibration overloads measurements.

In V.I.Yerofeev's (NB IMAS of RAS, N.Novgorod) work <Nonlinear flexural and torsional waves in bars and bar systems> results of researches are considered on a nonlinear wave mechanics of bar systems: flexural waves distribution in a bar, systems with rigid and weak nonlinearity, torsional oscillations.

In the report <Modernized method of discrete vortices (MMDV) and dynamics of tube bundles> S.M.Kaplunov, N.G.Vales T.N.Fesenko (IMAS of RAS, Moscow) offer a complex procedure basing on MMDV, on a numerical method of solving a problem of nonlinear oscillations in a stream of pipe bundle medium with a clearance, of static modeling, and of PLP-search method. The given procedure allows designing optimal heat exchanging plants of different assignment.

A number of reports are devoted to development of new techniques, design of new materials, and their processing. V.K.Astashev, N.A.Andrianov, and Ye.B.Semenova (IMAS of RAS, Moscow) prove necessity of ultrasonic techniques application at modern materials processing and substantiate simultaneous application of autoresonance systems for effective resonance state maintenance. In the report by S.V.Gladkovskiy, E.S.Gorkunova (IMAS UB of RAS, Yekaterinburg) the properties and characteristics of steels with metastable austenite structure are described. In the report <New equipment for electroplastic rolling of stainless steels> S.K.Kim S.A.Kutsenko, E.I.Anisimov, V.A.Martynov, A.V.Drozhzhin (Central Aerohydrodynamic Institute (CAHI), Zhukovskiy) describe experimental equipment for rolling of a metal ribbon on the basis of electroplastic metal deformation technique.

The review and development of control methods are given in the following works. In the report <Optimization methods of locating the components of an industrial complex> by V.Ye.Bolnokin (IMAS of RAS, Moscow) a problem is considered of expenditures minimization of an industrial complex build-up in case of necessary components allocation and convenient transport system establishment. In the report <Synthesis of adaptive systems of control with nonlinear dynamic objects on neural network basis> by V.Ye.Bolnokin, H.D.Lok (IMAS of RAS, Russia, Moscow, and National Technological University, Ho Chi Minh City, Vietnam) a method is stated of adaptive control systems build-up which allows to synthesize controllers for the objects, whose mathematical formulation is not known precisely, and to take into account an experience of a human-operator at forming the control law. In the report <Models and methods of control of an equipment complex in switched technological system> by A.M.Valuev (IMAS of RAS, Moscow) two types of technological system functioning are given, that is functioning at given set of operations requiring certain resources and connected by precedence relations, and operations, which are considered in a given time interval. V.V.Grot, N.A.Makhutov, V.A.Rudenko, A.I.Gavrilov A.S.Morozov (Ministry of Industry and Commerce of Russian Federation, IMAS of RAS, Moscow) describe principles and structure of a knowledge base in the expert system <Strength. Resource. Safety>. L.S.Grosheva, А.Popov, M.I.Feygin (VGAVT, N.Novgorod) developed an algorithm of automatic control of a vessel with intellectual stimulator, carried out debugging of the control algorithms on an industrial controller. V.V.Zolotukhin, V.K.Isaev (IMAS of RAS, Moscow) consider control systems of air traffic as global systems with connecting functions, , when a pilot can select a route in a real time without flight dispatcher control, and intellectual and multiagent systems. Simulation modeling methods constitute the basis of the systems. Attention is given to the problems of transport safety. In the report <State and modern tendencies of techniques for products of experimental machine building> V.K.Isaev, S.V.Skorodumov (CAHI, Zhukovskiy, Moscow Institute for Physics and Technology (MIPT), Dolgoprudniy, MAI, Moscow) survey new technologies of manufacture and partnership organization on the basis of scientific and technical outsourcing and industrial and technological outsourcing. A concept of is divulged. B.K.Isaev, Ye.N.Khobotov (CAHI, Zhukovskiy, MIPT, Dolgoprudniy, N.E.Bauman MSTU, Moscow) in their report <Methods for planning and construction of the schedules in machine building manufactures> consider advantages of "frame" schedule, time estimation problem required for details processing. V.K.Isaev, E.N.Khobotov (CAHI, Zhukovskiy, MIPT, Dolgoprudniy, N.E.Bauman MSTU, Moscow) considers models and methods for multiproduct supplies control in conditions of constant and casual demand.

A number of reports examine operation of hydraulic mountings and bearings. In the report <Premises for micro-hydroblows initiation at hydraulic mountings operation> by V.V.Bugaysky, B.A.Gordeev, A.V.Sinev (NB IMAS of RAS, N.Novgorod, IMAS of RAS, Moscow) a model of transition from laminar to turbulent flow is considered in throttling channel provided that the channel length is of one order with its radius. In A.V.Gordeyev's (NB IMAS of RAS, N.Novgorod) paper the expediency of hydraulic mountings application for an induction motor is submitted. A.V.Gordeyev and S.N.Okhulkov (NB IMAS of RAS, N.Novgorod) devote their paper to the effect of a residual magnetic induction of magnetorheological transformers on characteristics of hydraulic mountings. Ye.P.Zhilnikov, V.V.Makarchuk (Samara State Aerospace University, Aviation Bearings Plant, Samara) in their report <System approach to bearing support design and calculation for aerospace engineering> offer to refine contact geometry of roller and ball bearings, making it an optimal one, and to carry out calculation of the bearing durability by basic contact stresses. The solutions of such problems by means of the given techniques are considered. M.Ya.Panovko in his paper using numerical methods examines influence of a twist angle on pressure distribution of lubricating layer thickness in the contact area of a profiled roller.

V.V.Velichenko (IMAS of RAS, Moscow) states a meaning and potential of matrix mechanics in the modern computer world.

A.V.Isakov (IMAS of RAS, Moscow) researches steady-state conditions of a body suspended on a bar in a point on a principal axis of a minimum moment of inertia. Complete pattern of steady modes branching is constructed.

In the report <Innovative techniques of organic waste complex utilization by a closed cycle> L.K.Kovalev, L.L.Kovaleva, Ye.L.Veselova (IMAS of RAS, Moscow) describe the advantages of low-temperature dehydration technology in vacuum for organic waste utilization.

The conference was conducted at high scientific and organizational levels.




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