This paper describes the research, development of the first in the world production gearbox with asymmetric tooth profiles for the TV7-117S turboprop engine. The paper also presents numerical design data related to development this gearbox.

The article is dedicated to issues in certification of antivirus software and industrial cyber security systems. It was shown that certification time in Russia is much longer than in the USA, European Union and Germany. The life time and the development time of products of this field were analyzed in the article. Each variable was specified for new products and for new versions of existing products. Some statistical methods were used in the article: Cronbach’s alfa, t-statistics, and median value similarity that are typical for the articles in quality management. As a result, it was found that certification time in Russia for industrial cyber security systems is significantly longer than in other analyzed countries, up to three-fold. Product development and life time are also longer. However, the most important result is that certification in Russia adds from 32.1 to 40 percent of time to the development of a new version or a new product, correspondingly, whereas in other investigated countries these numbers are about 17 percent. Reduction of certification time will increase new product development efficiency in the field of cyber security, which will improve positions of Russian products at the international mark et.

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Main calculation principle of gear wheel geometry with asymmetrical tooth profile is presented. The paper presents calculation of bending stresses by means of YFS coefficient which takes into account the tooth shape and stress concentration. Graphic method of YFS coefficients calculation is described. Graphic method of stiffness calculation of teeth with asymmetrical profile and results of vibration testing are given.

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Геомеханические процессы в горном массиве, боковых породах лавы и взаимодействие их с секциями механизированной крепи нового типа: подвижный гидравлический клапан в боковых породах и замок в капсуле термодинамического баланса 19 НОВОСТИ ТЕХНИКИ АО «СУЭК» На Бородинском ремонтно-механическом заводе введена в эксплуатацию уникальная испытательная станция 28 Прокопенко С.А. Перспективные конструкции резцов для повышения сортности добываемого шахтами угля 29 БЕЗОПАСНОСТЬ АО «СУЭК» На базе АО «СУЭК-Кузбасс» прошло региональное совещание угольных компаний по обмену передовым опытом в сфере промышленной безопасности 34 АО «Новосибирский механический завод «Искра» отмечает 75-летний юбилей 35

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