Neural network modeling of safety system for construction equipment operation in permafrost zone

Abstract

The problems of neural network modeling of working conditions securing system while operating constructional equipment in permafrost zone are considered. Determining the temperature fields distribution on the soil depth on air temperature in regions with harsh climatic conditions will allow us to solve a number of engineering problems directed to creation of safe working conditions at construction equipment operation. As a first approximation temperature on the surface and in the depth of the upper layer of earth changes under the periodic law, following the change of air temperature during the year. With soil depth increasing the amplitude of temperature fluctuations decreases, but a random component related to weather conditions (the impact of which could be significant) is added to the periodic component caused by change of a season. In the article the mathematical model in the form of Stefan’s problem in which boundary conditions on earth surface are replaced with results of measurements is considered. Methods of neural network creation of this problem solution and results of computing experiments are given. The received results show that neural networks are the flexible tool, allowing to consider featuring of a task and all available information. Thus accuracy of results corresponds to accuracy of initial information. The additional information can be effectively used for specification of the required decision.

Improvement of the methodology for calculating damage from possible radiation accidents applicable in energy engineering

“…A more accurate assessment of the received damage from the incident, in turn, can affect the insurance amount of the hazardous production facility, and immediately in two directions: on the one hand, in the case of a more accurate calculation of the consequences (for example, taking into account the actual concentration of radioactive substances in the room) Accidents, together with the impact on the person participating in the accident, may decrease, which will lead to a reduction in the insurance amount for the enterprise, which will entail a reduction in insurance premiums, paying and, in the end, a reduction in the company's fixed costs, and on the other hand, if the scale of the consequences of the accident increases, including the impact on the person participating in the accident, will lead to an increase in insurance premiums, but in this case the amount of money will also increase , from which compensation will be paid to the victims, and accordingly the enterprise can be freed from material losses related to the payment of damages that the insured sum could not cover (counted "in the old way" more is not exact and, accordingly, it turned out to be less real). [15][16][17] One of the ways to solve the questions posed is to translate these calculations into automated calculations using special software.…”

Experimental studies of a hybrid car and electric car interference immunity

“…A more accurate assessment of the received damage from the incident, in turn, can affect the insurance amount of the hazardous production facility, and immediately in two directions: on the one hand, in the case of a more accurate calculation of the consequences (for example, taking into account the actual concentration of radioactive substances in the room) Accidents, together with the impact on the person participating in the accident, may decrease, which will lead to a reduction in the insurance amount for the enterprise, which will entail a reduction in insurance premiums, paying and, in the end, a reduction in the company's fixed costs, and on the other hand, if the scale of the consequences of the accident increases, including the impact on the person participating in the accident, will lead to an increase in insurance premiums, but in this case the amount of money will also increase , from which compensation will be paid to the victims, and accordingly the enterprise can be freed from material losses related to the payment of damages that the insured sum could not cover (counted "in the old way" more is not exact and, accordingly, it turned out to be less real). [15][16][17] One of the ways to solve the questions posed is to translate these calculations into automated calculations using special software.…”

Electric power supply management of the construction site in the interests of facilitating electrical safety

“…The solution of this linear algebraic system of equations is the following relations: P1=(ζ -⋅υ1⋅υ2)/(λ⋅ζ -⋅υ1+λ⋅ζ -⋅υ2+ζ + ⋅υ1⋅υ2+λ⋅υ1⋅υ2+ζ -⋅υ1⋅υ2 ), (5)…”

“…The type of construction, the volume of construction work, the technology and organization of production [5] largely determine the nature of consumers of electrical energy, electrical loads and electricity. At construction sites, electricity is used to drive operation of various mechanisms and machines.…”