This article is kept a comparison of results of the calculation of magnetic forces of missile solenoid power under single-line, nonlinear statements of the problem and at the calculation on the simplify strategy. Made findings on possibilities of using these strategies at the analysis of movement of moving portion of moulding material.

This article is devoted to development of strategy of calculation of power, acting in the lumpy magnetic field of inductor on dispersed ferromagnetic body, under the single-line statement of the problem. Brought comparison.

In the article studied influence ferromagnetic dispersed tel on the magnetic field of solenoid depending on coordinates and single-line sizes of tel. Brought results of comparisons of accounting and experimental values to inductions of magnetic field.