DIGITAL TWINS IN THE CONSTRUCTION INDUSTRY: A PERSPECTIVE OF PRACTITIONERS AND BUILDING AUTHORITY


SYNTHESIS OF A TWO-MASS ELECTRIC DRIVE WITH AN ASTATIC SYSTEM OF SUBORDINATE REGULATION AT THE ACTION OF VARIABLE FRICTION FORCES

Purpose.The solution of actual problem of active suppression of resilient electromechanical vibrations in an electric drive with the astatic system of automatic control is presented.Methodology.For research of damping properties of electrical drive according to a flow diagram from transmission functions on regulation and indignation a characteristi

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Experimental and Theoretical Determination of the Frost-Heave Cracking Law and the Crack Propagation Criterion of Slab Track with Water in the Crack

Crack propagation produced by frost heave affects the durability of slab-track structures in high-humidity and cold regions in China.This work is intended to reveal the evolution laws of frost-heave crack propagation, establish evaluation criteria for crack propagation, and investigate factors involved in frost-heave crack propagation.Firstly, by p

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Analytical model of unsteady-state convective heat transfer between the heat copyright and the finite sizes plate adjusted for the thermal relaxation

A hyperbolic boundary value problem of the thermal conduction of a two-dimensional plate with the third kind boundary conditions is formulated.The transient thermal process in the plate is due to the temperature changes of the Tongs external medium over time and along the plate length, and also by a multiple step change of the plate surface heat tr

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