Аннотация: In this article, in order to identify the functional relationships between machine aggregates and determine possible ways of modeling these relationships in the development of a model of the processes of interaction between the thermal impact equipment and the environment (the frozen soil), it is proposed to construct a structural diagram of the simulated machine using the provisions of the system approach. The above system is a prerequisite for the development of algorithms for solving a number of problems that describe the parameters of the machine.