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10th International Conference on Prospects of Fundamental Sciences Development, PFSD-2013

作者： Lutsenko, Nickolay A. Sorokova, Svetlana N. Far Eastern Federal University 8 Sukhanova Str. Vladivostok 690950 Russia Institute of Automation and Control Processes FEB RAS 5 Radio Str. Vladivostok 690041 Russia National Research Tomsk Polytechnic University 30 Lenina Av. Tomsk 634050 Russia

ISBN: (纸本)9783038350040

Using numerical experiment one-dimensional unsteady processes of heterogeneous combustion in porous object under free convection in horizontal case have been investigated and compared with vertical case. It is shown that in the case of the horizontal porous object the oxidizer supply,which is the result of natural convection,is not sufficient for the appearance of stable wave of heterogeneous combustion. In contrast to the vertical position of the object,there are no longlived combustion waves in the horizontal case,which completely burns down the solid combustible material. When the ignition zone is on the border of the object,the combustion wave near the vicinity of the boundary burns the oxygen and becomes extinct. When the ignition zone is in the center of the porous object,two combustion waves arise which may move very slowly,burn oxygen and become extinct. © (2014) Trans Tech Publications, Switzerland.

关键词： Natural convection

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The New Approach for Synthesis of Diagnostic System for Navigation Sensors of Underwater Vehicles

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Procedia Engineering 2014年 69卷 822-829页

作者： Vladimir Filaretov Alexey Zhirabok Alexander Zuev Alexander Protcenko Far Eastern Federal University 8 Suhanova St. Vladivostok 690950 Russia Institute for Automation and Control Processes FEB RAS 5 Radio St. Vladivostok 690041 Russia

In this paper, new approach for synthesis of the diagnostic system for navigation sensors of underwater vehicles (UVs) is developed and investigated. Proposed system is synthesized by using kinematic model of UVs and data fusion of sensors signals. The advantage of this approach is that it allows detecting and isolating faults in sensors of UVs at performance of underwater missions in unknown environment with unknown external disturbances. The results of performed simulation have completely confirmed the working capacity and high quality of the proposed approach.

关键词： diagnostic system underwater vehicles sensors faults

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Development of Approach to Automatic Machining of Composite Parts without their Rigid Fixing by Means of Multilink Manipulators

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Procedia Engineering 2014年 69卷 4-12页

作者： Vladimir Filaretov Alexander Zuev Anatoly Khvalchev Far Eastern Federal University 8 Suhanova St. Vladivostok 690950 Russia Institute for Automation and Control Processes FEB RAS 5 Radio St. Vladivostok 690041 Russia

This paper presents the new advanced approach for automatization of machining of nonrigid composites parts that have arbitrary geometrical form. This approach is based on using multilink manipulators with stereo vision system and allows not using the expensive individual equipment for parts rigid fixing before processing. This is achieved by special intelligent formation and correction of program's motions of manipulator cutting tool in real time using information about current position of processed parts from vision system. The results of performed simulations have completely confirmed the working capacity and high quality of the proposed approach.

关键词： composite parts machining manipulators stereo vision

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Effect of gravity field and pressure difference on heterogeneous combustion in porous media

Effect of gravity field and pressure difference on heterogen...

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作者： Lutsenko, Nickolay A. Levin, Vladimir A. Institute of Automation and Control Processes Far Eastern Branch of the RAS 5 Radio Str. Vladivostok690041 Russia Far Eastern Federal University Vladivostok Russia Institute of Mechanics of the Moscow State University Moscow Russia

Gravity is known to affect heterogeneous combustion in porous media;it is especially appreciable at very low air (oxidizer) flow rates. Effect of gravity on the combustion of porous objects includes not only the force of gravity (gravity field inside the porous object), but also the pressure difference at boundaries of the porous object, which is caused by the action of gravity on the ambient air if the open borders of the object are located at different heights. In this work, it has been studied numerically how the gravity field inside the porous object and the above-mentioned pressure difference at the object boundaries affect the combustion process in the object. It is revealed that the gravity field inside the porous object and the pressure difference at object boundaries lead to opposite effects: the pressure difference on object borders leads to the propagation of the combustion wave in the same direction and the same mode as in the vertical porous object, but the gravity field leads to the spread of the wave in the opposite direction or in a different mode. In the vertical porous object the pressure difference at object boundaries defeats the effect of gravity field inside the porous object, but the gravity force leads to reducing the velocity of combustion wave. © Copyright © Taylor & Francis Group, LLC.

关键词： Porous materials

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Acoustic Emission at the Kinetic and Development of the Structural Defects under Deformation of Aluminum Alloy

Acoustic Emission at the Kinetic and Development of the Stru...

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2014 2nd International Conference on Future Materials Engineering and Industry Application(ICFMEIA 2014)

作者： BASHKOV Oleg ROMASHKO Roman PANIN Sergey BASHKOVA Tatiana Komsomolsk-on-Amur State Technical University School of Natural Sciences Far-Eastern Federal University Laboratory of Precision Optical Measurements Techniques Institute of Automation and Control Processes FEB RAS Institute of Strength Physics and Materials Science SB RAS

The paper presents the results of studies the deformation behavior of aluminium alloy D16 by acoustic emission(AE) methodThe purpose of this study was to establish the deformation stages and deformation mechanisms at each stageStudies were carried out on the samples of aluminum alloy D16(analog 7075)This paper contains a method for the separation of AE signalsThe method of AE sources identification based on the the two-parameter distribution analysis(frequency parameter Kfvs energy of AE signals)The frequency parameter Kf is based on wavelet transform of AE signalsTwo-parameter distribution allows one to separate the AE signals emitted by dislocations from the signals of micro cracksThe investigation results allowed the various deformation stages to establish by the different types of AE signalsBy the AE analysis shows the dislocation mechanism of hardening the aluminum alloy D16The paper presents the results that characterize the influences of heat treatment and structural condition of aluminum alloy on the AE parameters.

关键词： Acoustic emission Stage Stress AE sources Dislocations Microcrack Macrocrack

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Express measurement of optical material refractive index with using laser beam profiler

Express measurement of optical material refractive index wit...

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The 2014 IMSS International Conference on Future Manufacturing Engineering(ICFME 2014)

作者： Vladislav Kolchinskiy Ikai Lo Cheng-Hung Shin Yuri Kulchin Roman Romashko Institute of Automation and Control Processes FEB RAS School of Natural Sciences Far-Eastern Federal University Department of Physics Department of Materials and Optoelectronic ScienceCenter for Nanoscience and NanotechnologyNational Sun Yat-Sen University

New method for express measuring of optical material refractive index for plane-parallel samples or optical elements is proposed and *** method is based on using laser beam profiler for measurement of laser beam displacement caused by its refraction in a sample of known *** developed method was used to measure the refractive index of gallium nitride in VIS spectral range at wavelengths 470,561 and 633 *** technique provides a refractive index measurement with *** of the measurement procedures allows one to perform it in express way.

关键词： refractive index laser beam profiler gallium nitride

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Synthesis of system for automatic formation of multilink manipulator velocity

Synthesis of system for automatic formation of multilink man...

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RSI/ISM International Conference on Robotics and Mechatronics (ICROM)

作者： Vladimir F. Filaretov Dmitry A. Yukhimets Alexandr Yu. Konoplin Branch of RAS Institute for automation and control processes Far Eastern Vladivostok Russia Far Eastern Federal University Vladivostok Russia

In this work the method of synthesis of system for control of manipulator movement is offered. This method allows to set maximum possible variable speed of the manipulator effector moving along spatial trajectories without decrease of the given dynamic accuracy of control. Herewith the entrance of manipulator engines to saturation is not supposed.

关键词： Manipulator dynamics Trajectory Accuracy Vectors Transfer functions Kinematics

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Synthesis method of fault tolerant control system for manipulators

Synthesis method of fault tolerant control system for manipu...

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2nd International Conference on Key Engineering Materials and Computer Science, KEMCS 2013

作者： Filaretov, Vladimir Zhirabok, Alexey Zuev, Alexander Procenko, Alexander Institute of Automation and control Processes FEB RAS Russia Far Eastern Federal University Russia

ISBN: (纸本)9783037857274

This paper presents the synthesis method of an effective fault tolerant control system for actuators of manipulators which are described by nonlinear differential equations with variable parameters. This system ensures due to specifically formed additional control signal insensitivity to faults arising in actuators. This allows ensuring the operation efficiency of manipulators in aggressive and extremal environment. The results of simulation confirmed the efficiency of the proposed method. © (2013) Trans Tech Publications, Switzerland.

关键词： Manipulators

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Numerical method for investigation of 1D processes in porous media with heterogeneous reactions when flow rate of oxidant regulates itself

Numerical method for investigation of 1D processes in porous...

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10th International Conference on Prospects of Fundamental Sciences Development, PFSD-2013

作者： Lutsenko, Nickolay A. Sorokova, Svetlana N. Far Eastern Federal University 8 Sukhanova Str. Vladivostok 690950 Russia Institute of Automation and Control Processes Far Eastern Branch of the RAS 5 Radio Str. Vladivostok 690041 Russia National Research Tomsk Polytechnic University 30 Lenina Av. Tomsk 634050 Russia

ISBN: (纸本)9783038350040

The time-dependent gas flows through porous objects with heterogeneous reactions are considered when the gas pressure at object boundaries is known but the flow rate and velocity of the gas filtration at the inlet to the porous objects are unknown. In such porous objects the flow rate of oxidant, which enters into the reaction zone in porous object, regulates itself. An original numerical method, based on a combination of explicit and implicit finite-difference schemes, have been developed for investigating the unsteady gas flows in such porous objects with zones of heterogeneous reactions. Used approach enables to solve problems of filtration combustion for both forced filtration and free convection, so it can be efficiently applied for modeling the combustion zones in porous media, which may arise from natural or man-caused disasters. © (2014) Trans Tech Publications, Switzerland.

关键词： Porous materials

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Atomic structure and electronic properties of the In/Si(111)2×2 surface

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Physical Review B 2014年第15期89卷 155310-155310页

作者： J. P. Chou C. M. Wei Y. L. Wang D. V. Gruznev L. V. Bondarenko A. V. Matetskiy A. Y. Tupchaya A. V. Zotov A. A. Saranin Institute of Atomic and Molecular Sciences Academia Sinica P.O. Box 23-166 Taipei Taiwan Institute of Automation and Control Processes FEB RAS 690041 Vladivostok Russia School of Natural Sciences Far Eastern Federal University 690000 Vladivostok Russia Department of Electronics Vladivostok State University of Economics and Service 690600 Vladivostok Russia

The Si(111)2×2-In reconstruction can be considered as a precursor phase for the formation of the metallic 7×3 phases of In overlayers on a Si(111) surface. Using the ab initio random structure searching method, comparison of simulated and experimental scanning tunneling microscopy images, and resemblance of the calculated band structure to the experimental angle-resolved photoelectron spectra, we examined various 2×2 structure models with 0.5, 0.75, 1.0, and 1.25 monolayer In coverage. The only model which fits well all the requirements is the one-monolayer model, where three In atoms in the T4 sites form a trimer centered in the H3 site and the fourth In atom occupies the on-top (T1) site.

关键词： ATOMIC structure AB initio methods (Quantum mechanics) SCANNING tunneling microscopy ENERGY bands PHOTOELECTRON spectra

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