Analysis of magnetic field configuration during the deposition of coating on parts made of magnetically soft materials. Explanatory note to the special part of the diploma project, страница 2

1. Definition of types of elements and their variants (option KEYOPT).

2. Definition of the coordinate system for elements.

3. Definition of constants and choice of system of units.

4. Definition of materials properties.

Definition of types of elements and their variants (option KEYOPT).

Element types create physics of problem area. Depending on essence of a problem, it is necessary to define separate types of elements to model various regions of physics in model. For example, the impermeable iron area can demand one type elements, and the inductance coil can demand other type elements. Types of elements which are chosen, define nature of area which demands the decision. Once having concretized types of an element and variants, it is possible to appoint them for various regions of model.

For design of a magnetic system model we chose following types of regions (Table 2.1)

Table 2.1

The calculation of a system which includes the inductance coil assumes definition of such parameters as number of turns, the value of a current per one turn and the cross-section area of a coil. (Fig. 2.1.).

Figure 2.1.Inductance coil characteristic parameters.

2.1 Distribution of a magnetic field in case of absence of magnetically soft material near the main magnetic system.

Proceeding from MSS design we choose magnets in the form of rings: 3 pieces with the sizes D=30 mm, D1=16,2 mm, H=40 mm, (where D - external diameter of a ring of a magnet, D1 - internal diameter of a ring of a magnet, H - length of a magnet) weight of a magnet - 150g,  the magnetization direction - axial. The size of a residual induction of ЮНД4 alloy makes 0,5 Т.

In case of absence of the magnetically soft material near the main magnetic system, the magnetic lines going from polar magnetic conducters are not deformed, that proves to be true by the mentioned below Fig. 2.2., obtained using ANSYS software.

Figure 2.2. Distribution of a magnetic field in case of absence of magnetically soft material near the main magnetic system

2.2 Distribution of a magnetic field in case of presence of magnetically soft material near the main magnetic system.

In case of presence of magnetically soft material near the main magnetic system the magnetic lines going from polar magnetic conducters are deformed, "being absorbed" by the magnetically soft material of a shock-absorber cylinder on which the covering deposition is made. The material of the shock-absorber cylinder is a magnetically soft steel 30 ХГСНА-ВД.