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Article
Carrying capacity of a cylindrical magnetofluid support
The influence of magnetic and geometric parameters on the carrying capacity of a magnetofluid support consisting of a cylindrical bushing and a journal suspended in a linearly magnetizable fluid has been inves...
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Article
Narrow-band tunable laser system for a lidar facility
A unique ultraviolet laser system has been developed for a lidar intended to detect nitrogen oxide molecules in the atmosphere. The electric-discharge KrF laser system is capable of producing a highly coherent...
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Article
Determination of the prestressed state in a tube
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Article
On the determination of the internal pressure in a cylinder based on acoustic testing data
The problem of the determination of the internal pressure in a tube using the acoustic method is described. The stressed state that is developed by internal pressure is considered as a prestressed state (PSS) ...
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Article
2D Simulation of a Discharge-Pum** KrF Laser
Results of 2D simulation of a KrF laser are presented. In the model, inhomogeneities of distributions of the electric field and plasma particle concentration are considered. It is demonstrated that starting from ...
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Article
Experimental Investigation and Modeling of Kinetic Processes in a KrF Laser
The KrF laser with radiation pulse duration at half maximum of 20 ns is experimentally investigated. A self-consistent model is developed considering the electric circuit, the kinetic processes in the active m...
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Article
Influence of the residual elastic-plastic state of a tube on the dynamic characteristics
The problem of radial vibrations of the isotropic tube in the presence of a nonuniform field of preliminary stresses (PSs) is considered in this article. It is admitted that the nonzero components of the PS te...
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Article
Experimental Study of Aerodynamic Resistance of Staggered Equilateral Banks of Tubes with Spiral Aluminum Fins
Aerodynamic resistance of six four-row tube banks in isothermal air cross-flow is studied. The banks assembled from full-scale bimetallic tubes, the aluminum fins of which are rolled on a bearing steel tube wi...
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Article
Thermal Conductivity of External Contaminants of Air-Cooled Heat Exchangers
The results of experimental studies of thermal conductivity of the dominant types of external contaminants of air coolers are given. Reed down, peat litter, leaves, sand, pine needles, and ash were investigat...
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Article
Determination of the Inhomogeneous Preliminary Stress–Strain State in a Piezoelectric Disk
The problem of steady radial vibrations of a thin electroelastic hollow disk in the presence of a preliminary inhomogeneous plane stress–strain state is solved. Vibrations are induced by applying a potential d...
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Article
Experimental Study of Heat Exchange and Aerodynamic and Thermal Contact Resistance of Staggered Bundles of Tubes with Spiral Rolled Fins of Air-Cooled Devices
Results of a study of the thermal and dynamic characteristics of three types of six-row checkerboard bundles in a transverse flow in the interval of Reynolds number Re = (3−18) × 103 are presented. The experiment...
