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Full-Text Articles in Engineering
Numerical Simulation Of Nonlinear Vibrations Of Discrete Mass With Harmonic Force Perturbation, M. Yusupov, B. A. Akhmedov, Olga Karpova
Numerical Simulation Of Nonlinear Vibrations Of Discrete Mass With Harmonic Force Perturbation, M. Yusupov, B. A. Akhmedov, Olga Karpova
Acta of Turin Polytechnic University in Tashkent
The problem of vibration of a single-mass system under the force excitation of vibration associated with a fixed base by a weightless nonlinear viscoelastic spring is considered. To take into account the rheological properties of the spring material, the Boltzmann-Volterra principle was used. Mathematical models of the problem under consideration are obtained, which are described by integro-differential equations. A solution method based on the use of quadrature formulas has been developed and a computer program has been compiled on its basis, the results obtained are presented in the form of graphs. The influence of nonlinear and rheological properties of a …
Specific Features Of Optical Fiber Cable Operation During Tension And Change Of Ambient Temperature, Dilmurod Davronbekov, Zafar Khakimov
Specific Features Of Optical Fiber Cable Operation During Tension And Change Of Ambient Temperature, Dilmurod Davronbekov, Zafar Khakimov
Bulletin of TUIT: Management and Communication Technologies
This article examines the effect of longitudinal and thermoelastic deformation of an optical module on the technological reserve of an optical fiber. Analytical expressions are given for determining the lower limit of the technological margin of an optical fiber for various types of fiber-optic cable section along the axis.
Simulation Of Forced Vibrations Of The Elements Of A Sewing Machine’S Compound Foot, Sabrina Djamolitdinovna Mukhamedjanova Article
Simulation Of Forced Vibrations Of The Elements Of A Sewing Machine’S Compound Foot, Sabrina Djamolitdinovna Mukhamedjanova Article
Acta of Turin Polytechnic University in Tashkent
The article presents the results of the study of de- sign features of the foot of sewing machines. The effective design scheme and operating principle of the sewing machine foot are pre- sented. Mathematical models of forced oscillations of the elastic plate and the upper plate with the power and rod of the composite foot with the elastic elements are obtained.
Results Of Model Tray Experiments Of A Sand Pressiometer And Methods For Determining The Deformation Characteristics Of Soils, Khasanov Askar, Nabiyeva Nigora
Results Of Model Tray Experiments Of A Sand Pressiometer And Methods For Determining The Deformation Characteristics Of Soils, Khasanov Askar, Nabiyeva Nigora
Problems of Architecture and Construction
In the paper discusses the results of experimental studies of the stress-strain state of the soil around the walls of the borehole under axisymmetric loading. Analytical expressions are given for determining the soil deformation modulus when tested with a sand pressiometer.
On The Formation Of A Computational Model Of Flexible Gently Sloping Shells And Plates Under Repeated Elastoplastic Loading, Abdusattarov A., Abdukadirov F.
On The Formation Of A Computational Model Of Flexible Gently Sloping Shells And Plates Under Repeated Elastoplastic Loading, Abdusattarov A., Abdukadirov F.
Problems of Architecture and Construction
In this article is given the geometric and physical relations for flexible gentle shells, suggests two forms of communication between the deformation of the middle layer and displacements, respectively, the equilibrium equations and the conditions for compatibility of deformation are derived. For a special case, the implementation algorithm and the results of calculating rectangular plates are presented.