2023 , Volume 28, № 5, p.33-44

The paper presents an original model for the study ofresearch on thermal processes in a radar station with a dense layout of electronic equipment, which leads to an uneven temperature distributi- on inside the blocks, nonlinear dynamic interactions between the elements, as well as toalong with the anisotropy of the medium with respect to heat transfer processes.

The aim of the work is to build a thermal model for studying the temperature dynamics inside the REC.

The basis of the constructed thermal model is arelies on a system of differential equations that describes the processes of heat transfer inside the REC and takes into account both the thermal interaction of power amplification units with air, as well asair and uneven temperature distribution inside the blocks.

The solution to the problem of calculating the temperature values inside the REC for aover certain period of time was made on the basis of a system of differential equations using finite difference methods.

The results of the program, written on the basis ofrelied the constructed thermal model, are the calculated array of temperature values in the internal region of the REC, as well as certain times of operation of all RCMs tobefore failure, which makes it possible to identifyallows identifying critical elements.

Conclusions:

1. The developed model makes it possiblehelps to identify the shortcomings of the cooling system whenwhile simulating the operation of the units by taking into accountwhen the uneven distribution of temperature over the blocks is accounted.

2. The obtained simulation results make it possible to optimizeallows optimizing the layout of the REC in terms of the number and location of both blocks and air coolers.

3. An algorithm for the operation of the thermal model of the radar has been developed to implement the mode of proactive control of functional characteristics.

4. The obtained simulation results make it possible to quickly calculateallows calculating the operating time of the blocks in the interests ofwhile predicting their failures in real time.