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Main Journal ArchiveYear 2024 / № 8

Issue: #8 (773)

DOI 10.18698/0536-1044-2024-8

Mechanics

Kinematic analysis of a planetary mechanism with the oval gearwheels

Authors: Prikhodko A.A., Kurapov G.V., Belina N.N., Azizov E.Yu., Polivoda N.A.
Category: Mechanics \| Chapter: Theoretical Mechanics, Machine Dynamics
Keywords: planetary mechanism, oval gearwheels, kinematic analysis, position function, statistical analysis, measurement uncertainty

Structural parameters influence on the inhomogeneous sample physical and mechanical properties under the compressive load

Authors: Kharin N.V., Akifyev K.N., Spiridonova K.O., Khamzin D.E., Statsenko E.O., Bolshakov P.V.
Category: Mechanics \| Chapter: Solid Mechanics
Keywords: computer tomography, stress-strain state, sample porosity, inhomogeneous structure

Mechanical Engineering and Machine Science

Structural synthesis of the parallel structure mechanisms containing kinematic chains that impose connections on the output link motion

Authors: Didenko E.V., Pevnev V.G., Demidov S.M.
Category: Mechanical Engineering and Machine Science \| Chapter: Robots, Mechatronics and Robotic Systems
Keywords: parallel structure mechanism, one degree of freedom, planar motion, kinematic chain, imposed connections

Study of the Industrial Sewing Machine Vibration

Authors: Novikov Y.V., Gornak S.V., Novikov V.Y.
Category: Mechanical Engineering and Machine Science \| Chapter: Technology and Equipment for Mechanical and Physico-Technical Processing
Keywords: sewing head model, basic vibration isolator, center of mass coordinates, dynamic load computation, main shaft, natural frequency

Accelerated approach to assessing the machine operation and its technical potential

Authors: Seregin A.A.
Category: Mechanical Engineering and Machine Science \| Chapter: Technology and Equipment for Mechanical and Physico-Technical Processing
Keywords: wheel-turning lathes, operation and technical potential, stability in operation and technical parameters, technological precision, operation reliability

Digital reengineering of the customized equipment manufacture in small enter-prises

Authors: Bulavin V.F., Bulavina T.G., Petryashov I.S., Stepanov A.S.
Category: Mechanical Engineering and Machine Science \| Chapter: Manufacturing Engineering
Keywords: digital twin, digital reengineering, additive technologies, small enterprises businesses

Methods for computing work processes and improving the cryogenic shut-off and control valves design in the pneumohydraulic systems

Authors: Malov D.A.
Category: Mechanical Engineering and Machine Science \| Chapter: Hydraulic Machines, Vacuum, Compressor Technology, Hydraulic and Pneumatic Systems
Keywords: cryogenic valves, computational hydro-fluid dynamics, heat transfer computation, valve design, insulation type, throughput

Research and development of a high-efficiency piston hybrid power machine with two suction valves

Authors: Shcherba V.E., Tegzhanov A.S., Ekimov G.I.
Category: Mechanical Engineering and Machine Science \| Chapter: Hydraulic Machines, Vacuum, Compressor Technology, Hydraulic and Pneumatic Systems
Keywords: piston hybrid power machine, two suction valves, prototype, experimental bench, measurement equipment

Energy and Electrical Engineering

Analytical analysis of thermal schemes of waste steam and gas turbine plants, used to achieve carbon neutrality

Authors: Bowen Gong, Izbiakov N.S., Barskov V.V., Rassokhin V.A.
Category: Energy and Electrical Engineering \| Chapter: Turbomachines and Piston Engines
Keywords: supercritical carbon dioxide, heat recovery, Brayton cycle options, carbon neutrality, electricity generation, turbine

On the problem of the turbine oil purity

Authors: Pshenisnov N.A.
Category: Energy and Electrical Engineering \| Chapter: Turbomachines and Piston Engines
Keywords: steam turbine, turbine oil, frame filters, turbo unit oil supply, working fluid

Aviation, Rocket and Technology

Geometric instability problems in monolithic products made of the carbon-based polymer composites

Authors: Nekravtsev E.N., Safonov K.S., Oganesov V.A., Popov I.S., Samokhvalov V.V.
Category: Aviation, Rocket and Technology \| Chapter: Aircraft Development, Design and Manufacture
Keywords: polymer composite material, monolithic panel warping, carbon-based prepreg, autoclave technology, equilibrium laying scheme

Theoretical and numerical determination of the polymer composite material permeability by the multiscale simulation approach. Part 1. GFRP

Authors: Prosuntsov P.V., Polskiy P.V.
Category: Aviation, Rocket and Technology \| Chapter: Aircraft Strength and Thermal Modes
Keywords: polymer composite material, fiberglass homogeneous characteristics, dielectric characteristics, representative volume element, multiscale simulation, electromagnetic radiation