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Main Journal ArchiveYear 2019 / № 10

Issue: #10 (715)

DOI 10.18698/0536-1044-2019-10

Mechanical Engineering and Machine Science

Methods for Determinning Critical Values of Nonconservative Loads in Problems of Stability of Mechanical Systems

Authors: Radin V.P., Chirkov V.P., Shchugorev A.V., Shchugorev V.N.
Category: Mechanical Engineering and Machine Science \| Chapter: Machine Science, Drive Systems, and Machine Components
Keywords: non-conservative loads, stability of mechanical systems, stability research method, divergence and flutter

Feed adjustment when milling curved surfaces

Authors: Matasova E.Y., Vinogradov D.V.
Category: Mechanical Engineering and Machine Science \| Chapter: Technology and Equipment for Mechanical and Physico-Technical Processing
Keywords: milling feed, thickness of cut layer, curved milling, contour milling, cut layer

The Effect of the Material and the Geometric Shape of the Waveguides on the Process of Ultrasonic Welding of Plastics

Authors: Volkov S.S., Nerovnyy V.M., Bigus G.A.
Category: Mechanical Engineering and Machine Science \| Chapter: Welding, Allied Processes and Technologies
Keywords: ultrasonic welding, amplitude of fluctuations of a waveguide, working edge of a waveguide, strengthening coefficient, frequency of fluctuations, resonant length of a waveguide

Increasing the Overlap Factor in the Elastic Model of a Modified Gear

Authors: Timofeev B.P., Dang N.T.
Category: Mechanical Engineering and Machine Science \| Chapter: Theory of Mechanisms and Machines
Keywords: approximate gears, localization of the contact patch, solution of the Hertz problem, overlap factor, circular and parabolic modifications, load capacity

Power, Metallurgic and Chemical Engineering

Selecting the Dimensions of the Vaneless Diffuser of a Centrifugal Compressor Stage at the Primary Design Phase

Authors: Galerkin Y.B., Rekstin A.F., Solovyeva O.A.
Category: Power, Metallurgic and Chemical Engineering \| Chapter: Vacuum and Compressor Technology and Pneumatic Systems
Keywords: centrifugal compressor stage, primary design, vaneless diffuser, work coefficient, impeller, flow rate coefficient

Theoretical Estimation of Thermal Deformations of Non-Lubricated Bearings of Low-Flow Turbocharger Units

Authors: Raykovskiy N.A., Yusha V.L., Tretyakov A.V., Zakharov V.A.
Category: Power, Metallurgic and Chemical Engineering \| Chapter: Vacuum and Compressor Technology and Pneumatic Systems
Keywords: non-lubricated bearing, low-flow turbine unit, numerical method, thermal state, temperature deformation

Modeling of Characteristics of Water-Ring Vacuum Pumps

Authors: Velikanov N.L., Naumov V.A.
Category: Power, Metallurgic and Chemical Engineering \| Chapter: Hydraulic Machines and Hydropneumatic Units
Keywords: water-ring vacuum pumps, absolute pressure in the chamber, vacuum technology, suction zone

An Experimental Study of a Crossheadless Piston Hybrid Power Positive Displacement Machine with Intensive Cooling of the Compressed Gas

Authors: Shcherba V.E., Nosov E.Y., Tegzhanov A.S., Paramonov A.M., Blinov V.N., Surikov V.I.
Category: Power, Metallurgic and Chemical Engineering \| Chapter: Hydraulic Machines and Hydropneumatic Units
Keywords: piston compressor, piston pump, hybrid power machine, cylinder-piston group cooling, feed ratio, volumetric efficiency

Aviation, Rocket and Technology

Design and Technology of Winding Curvilinear Pipelines from Sintered Polyimide-Fluoroplastic Film

Authors: Komkov M.A., Badanina Y.V.
Category: Aviation, Rocket and Technology \| Chapter: Aircraft Development, Design and Manufacture
Keywords: cryogenic fuel, polyimide film, film shell, curvilinear pipelines, winding method

Methodology for Determining the Survivability and Resistance of Aircraft Propellers to the Impact of Foreign Objects

Authors: Neskoromnyy Е.V., Markov D.S.
Category: Aviation, Rocket and Technology \| Chapter: Inspection and Testing of Aircraft and Aircraft Systems
Keywords: blade made of composite materials, damage by foreign objects, propeller, surviv-ability and impact resistance, impact resistance