scholarly journals Experimental - theoretical study of the stress-strain state of cable-stayed-rod systems of the dome type

2021 ◽  
Vol 1015 (1) ◽  
pp. 012013
Author(s):  
A D Akhmedov ◽  
I V Loseva ◽  
M A Kalmova
Keyword(s):  
Strain State ◽  
Theoretical Study ◽  
Stress Strain ◽  
Stress Strain State

scholarly journals FEM simulation of waveguide flange manufacture by closed bulk forming

2018 ◽  
pp. 60-64
Author(s):  
A. A. Arkhipov ◽  
S. V. Lyubimskiy
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Technological Process ◽  
Strain State ◽  
Theoretical Study ◽  
Fem Simulation ◽  
The Finite Element Method ◽  
Stress Strain ◽  
Stress Strain State ◽  
Bulk Forming

The purpose of the study was to analyze the basic technological process of manufacturing waveguide flanges at PJSC “ALMAZ R&P Corp.” LEMZ Division. A method for optimizing the process has been proposed, and a theoretical study using the finite element method has been carried out. The stress-strain state of the forging of a complex shaped flange during its manufacture with closed bulk forming has been analyzed as well.

CALCULATION AND THEORETICAL STUDY OF STRESS-STRAIN STATE OF BASCULE BRIDGE SUPERSTRUCTURE

2016 ◽  
Vol 13 (2) ◽  
pp. 121-132
Author(s):  
Gennadiy I. Bogdanov ◽  
◽  
Irina I. Rybina ◽  
Anatoliy A. Antonyuk ◽  
◽  
...  
Keyword(s):  
Strain State ◽  
Theoretical Study ◽  
Stress Strain ◽  
Stress Strain State ◽  
Bridge Superstructure

Theoretical study concerning the stress-strain state in an elastic bulk mass around a circular cavity

1977 ◽  
Vol 13 (9) ◽  
pp. 873-877
Author(s):  
S. P. Gavelya ◽  
V. T. Glushko ◽  
V. D. Dikhtyar ◽  
V. P. Skripnik
Keyword(s):  
Strain State ◽  
Theoretical Study ◽  
Circular Cavity ◽  
Stress Strain ◽  
Stress Strain State ◽  
Bulk Mass

scholarly journals COMPARATIVE ANALYSIS OF STRESS-STRAIN STATE OF BEARING OF SPHERICAL TRANSFORMING MECHANISM OF VARIOUS STRUCTURES

2021 ◽  
pp. 49-52
Author(s):  
A. V. Popov ◽  
I. V. Notov ◽  
A. A. Rozhnov
Keyword(s):  
Comparative Analysis ◽  
Strain State ◽  
Theoretical Study ◽  
Stress Strain ◽  
Stress Strain State

The article presents a comparative analysis of the stress-strain state of the elements of a spherical transforming mechanisms operating in various structural versions. During the analysis of the acting stresses, the calculation schemes of the acting forces were developed, the stress-strain state of the elements of the spherical transforming mechanism in dynamics was modeled. For the obtained results of the theoretical study, recommendations were developed to improve the reliability and strength, provided that this mechanism is used as part of various types of drive.

scholarly journals RESEARCH OF THE STRESS DISTRIBUTION IN THE HINGE ELEMENT OF THE LEADING RING OF A SPHERICAL TRANSFORMING MECHANISM

2020 ◽  
pp. 28-30
Author(s):  
A. V. Popov ◽  
A. A. Rozhnov ◽  
I. V. Notov
Keyword(s):  
Stress Distribution ◽  
Strain State ◽  
Theoretical Study ◽  
Load Capacity ◽  
Drive Shaft ◽  
Stress Fields ◽  
Stress Strain ◽  
Stress Strain State ◽  
Spherical Mechanism

The article presents a theoretical study of the stress distribution of the leading links of the spherical transforming mechanism. Diagrams of the stress-strain state and stress fields in the leading element of a spherical mechanism are presented. Methods for improving the reliability and load capacity of the hinge drive shaft with the leading ring of the spherical mechanism are proposed.

scholarly journals ANALYSIS OF THE STRESS-STRAIN STATE OF THE DRIVE SHAFT OF A SPHERICAL CONVERTING MECHANISM

2020 ◽  
pp. 39-41
Author(s):  
A. V. Popov ◽  
I. V. Notov ◽  
A. A. Rozhnov
Keyword(s):  
Strain State ◽  
Theoretical Study ◽  
Drive Shaft ◽  
Stress Strain ◽  
Stress Strain State ◽  
Strength Based

The article presents a theoretical study of the stress-strain state of the drive shaft of a spherical converting mechanism experiencing cyclic alternating loads. In the course of this work, the design schemes of the acting forces were developed, and the stress-strain state of the drive shaft was modeled. For the design of this link, we have proposed ways to increase the reliability and strength based on the conditions for preserving the geometric dimensions of the spherical converting mechanism.

КОНСТРУКТИВНО-ТЕХНОЛОГІЧНІ ОСОБЛИВОСТІ ХВОСТО-ВИХ БАЛОК СІТЧАСТОГО ТИПУ З ПОЛІМЕРНИХ КОМПО-ЗИЦІЙНИХ МАТЕРІАЛІВ ВЕРТОЛЬОТІВ ТРАНСПОРТНОЇ КАТЕГОРІЇ

2020 ◽  
pp. 15-30
Author(s):  
А. Г. Гребеников ◽  
И. В. Малков ◽  
В. А. Урбанович ◽  
Н. И. Москаленко ◽  
Д. С. Колодийчик
Keyword(s):  
Finite Element ◽  
Strain State ◽  
Layer Structure ◽  
Metal Structure ◽  
Element Model ◽  
Stress Strain ◽  
Element Analysis ◽  
Mesh Structure ◽  
Stress Strain State ◽  
Mesh Structures

The analysis of the design and technological features of the tail boom (ТB) of a helicopter made of polymer composite materials (PCM) is carried out.Three structural and technological concepts are distinguished - semi-monocoque (reinforced metal structure), monocoque (three-layer structure) and mesh-type structure. The high weight and economic efficiency of mesh structures is shown, which allows them to be used in aerospace engineering. The physicomechanical characteristics of the network structures are estimated and their uniqueness is shown. The use of mesh structures can reduce the weight of the product by a factor of two or more.The stress-strain state (SSS) of the proposed tail boom design is determined. The analysis of methods for calculating the characteristics of the total SSS of conical mesh shells is carried out. The design of the tail boom is presented, the design diagram of the tail boom of the transport category rotorcraft is developed. A finite element model was created using the Siemens NX 7.5 system. The calculation of the stress-strain state (SSS) of the HC of the helicopter was carried out on the basis of the developed structural scheme using the Advanced Simulation module of the Siemens NX 7.5 system. The main zones of probable fatigue failure of tail booms are determined. Finite Element Analysis (FEA) provides a theoretical basis for design decisions.Shown is the effect of the type of technological process selected for the production of the tail boom on the strength of the HB structure. The stability of the characteristics of the PCM tail boom largely depends on the extent to which its design is suitable for the use of mechanized and automated production processes.A method for the manufacture of a helicopter tail boom from PCM by the automated winding method is proposed. A variant of computer modeling of the tail boom of a mesh structure made of PCM is shown.The automated winding technology can be recommended for implementation in the design of the composite tail boom of the Mi-2 and Mi-8 helicopters.

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