Ukrainian Journal of Mechanical Engineering and Materials Science. – 2023. – Vol. 9, No. 2

Permanent URI for this collectionhttps://ena.lpnu.ua/handle/ntb/61139

Науковий журнал

Засновник і видавець Національний університет «Львівська політехніка». Виходить двічі на рік з 2015 року.

Ukrainian Journal of Mechanical Engineering and Materials Science = Український журнал із машинобудування і матеріалознавства : науковий журнал / Lviv Politechnic National University ; editor-in-chief Oleksiy Lanets . – Lviv : Lviv Politechnic Publishing House, 2023. – Volume 9, number 2. – 94 p.

Український журнал із машинобудування і матеріалознавства

Зміст (том 9, № 2)

1. Dzyubyk A., Dzyubyk L., Zinko Y., Dzhaliuk O. Technological features of restoration of rims of support rollers for tracked vehicles	1
2. Vishtak I., Savulyak V. Comparative characteristics and selection of speed bearings	12
3. Vrublevskyi I. Increasing of vibratory conveying velocity by optimizing the normal vibration	26
4. Topilnytskyy V., Vyshatytskyy V. Construction of a mathematical model of an unbalanced vibrating separator on a spring suspension	36
5. Kovalev V., Klymenko G., Vasylchenko Y., Shapovalov M., Manokhin A. Selection of a rational method for hardening carbide cutting tools for heavy engineering	45
6. Myskiv T. Analysis of the drive of electric vehicles with its different configurations	57
7. Protasov R., Magdolen Ľ., Danko J., Lanets O., Vorontsov B. Analysis of the influence of the displacement of the gear rack profile of the pair evolution gearing on the quality indicators of the transmission	66
8. Slipchuk A., Jakym R., Bembenek M. Study of durability in the connection “cone-tungsten carbide insert” for tension dependence	75
9. Tonkonogyi V., Holofieieva M., Levynskyi O., Klimov S., Dasic P. The dependence of thermal processes in non-metallic heterogeneous materials on mechanical vibration loads	83
10. Contents	91

Content (Vol. 9, No 2)

1. Dzyubyk A., Dzyubyk L., Zinko Y., Dzhaliuk O. Technological features of restoration of rims of support rollers for tracked vehicles	1
2. Vishtak I., Savulyak V. Comparative characteristics and selection of speed bearings	12
3. Vrublevskyi I. Increasing of vibratory conveying velocity by optimizing the normal vibration	26
4. Topilnytskyy V., Vyshatytskyy V. Construction of a mathematical model of an unbalanced vibrating separator on a spring suspension	36
5. Kovalev V., Klymenko G., Vasylchenko Y., Shapovalov M., Manokhin A. Selection of a rational method for hardening carbide cutting tools for heavy engineering	45
6. Myskiv T. Analysis of the drive of electric vehicles with its different configurations	57
7. Protasov R., Magdolen Ľ., Danko J., Lanets O., Vorontsov B. Analysis of the influence of the displacement of the gear rack profile of the pair evolution gearing on the quality indicators of the transmission	66
8. Slipchuk A., Jakym R., Bembenek M. Study of durability in the connection “cone-tungsten carbide insert” for tension dependence	75
9. Tonkonogyi V., Holofieieva M., Levynskyi O., Klimov S., Dasic P. The dependence of thermal processes in non-metallic heterogeneous materials on mechanical vibration loads	83
10. Contents	91

One of the promising directions in the development of mechanical engineering is using of new non-metallic heterogeneous materials with high physical and mechanical properties. Such materials consist of two or more components (reinforcing filler and polymer matrix) and have specific physical and mechanical properties that are different from the properties of the constituent components. This is achieved by forming a complex developed structure. Reliable control methods play an important role in ensuring the quality of such structures. The paper considers an acoustic infrared thermometric method of control, which is based on the interaction of structural defects with acoustic waves. At the same time, thermal energy is generated at their boundaries, which is an indicator not only of the presence of cracks but also of their direction and development. a mathematical model has been developed that describes the transformation of the energy of mechanical vibrations into thermal energy, which occurs in non-metallic heterogeneous materials.

Ukrainian Journal of Mechanical Engineering and Materials Science. – 2023. – Vol. 9, No. 2

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