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Main Journal ArchiveYear 2020 / № 2

Issue: #2 (719)

DOI 10.18698/0536-1044-2020-2

Mechanical Engineering and Machine Science

A Study of the Possibility of Reducing Residual Stresses and Strains in Welded Joints by Ultrasonic Treatment

Authors: Volkov S.S., Konovalov A.V., Shestel L.A.
Category: Mechanical Engineering and Machine Science \| Chapter: Welding, Allied Processes and Technologies
Keywords: amplitude of ultrasonic vibrations, residual stresses, welded joints, ultrasonic treatment, welded structures, plastic deformations

Systematic Analysis and Application of Multi-Loop Linkages with Multiple Joints in Modern Mechanical Engineering

Authors: Pozhbelko V.I., Kuts E.N.
Category: Mechanical Engineering and Machine Science \| Chapter: Theory of Mechanisms and Machines
Keywords: multi-link lever mechanism, multiple joint, closed kinematic chain, mobility

Power, Metallurgic and Chemical Engineering

On Vibrational and Dynamic Characteristics of Engines with Deactivated Cylinders

Authors: Yamanin A.I.
Category: Power, Metallurgic and Chemical Engineering \| Chapter: Heat Engines
Keywords: cylinder shut-off, torque uniformity, crankshaft bearings, low-frequency vibration, high-frequency vibration

Theoretical Assessment of the Impact of Cooling and Recovery Systems on Energy Efficiency of Compressor Units Based on Long Stroke Piston Stages

Authors: Yusha V.L., Busarov S.S., Chernov G.I.
Category: Power, Metallurgic and Chemical Engineering \| Chapter: Vacuum and Compressor Technology and Pneumatic Systems
Keywords: low-capacity compressor units, piston long stroke stages, recovery systems, Rankine cycle, dead volume, quasi-isothermal workflow

The Selection of Parameters and Design of an Air Turbine Unit for Flue Gas Heat Recovery of a 16 MW Gas Turbine Unit for Gas Pumping Units

Authors: Manushin E.A., Melnikov A.I.
Category: Power, Metallurgic and Chemical Engineering \| Chapter: Turbomachines and Combination Turbine Plants
Keywords: gas pumping unit, gas turbine unit, air turbine unit, heat recovery, heat exchanger, layout

Calculating Cutoff Speeds of a Multistage Pump Rotor Taking into Account Lomakin Effect in the Front Seal of the Impeller

Authors: Svoboda D.G., Zharkovskii A.A., Ivanov E.A., Borshchev I.O.
Category: Power, Metallurgic and Chemical Engineering \| Chapter: Hydraulic Machines and Hydropneumatic Units
Keywords: multistage vane pump, numerical studies, vibration characteristics, gap seal, coefficients of stiffness, hydrodynamic forces

Aviation, Rocket and Technology

A Thermal Strength State Analysis of a Cylindrical Combustion Chamber Manufactured Using Additive Technologies

Authors: Ushakova E.S., Arefyev K.Yu., Zaikin S.V., Polyanskiy A.R., Isakov V.V.
Category: Aviation, Rocket and Technology \| Chapter: Aircraft Strength and Thermal Modes
Keywords: additive technologies, stress-strain state, factor of safety, specific heat flux, cooler heating, combustion chamber