List of publications on a keyword: «compression»


[05.00.00] Технические науки

Publication date: 24.11.2016
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Muselemov Khayrula Magomedmuradovich , candidate of technical sciences , доцент, старший преподаватель
Ustrakhanov Osman Magomedovich , doctor of technical sciences , профессор, заведующий кафедрой
Kalieva Madina Khalitovna , преподаватель
Manapov Rashid Magomedovich , аспирант
FSFEI of HE “Dagestan State Technical University” , Дагестан Респ

«The research of glued frame-mounted wooden constructions»

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The authors of this article note that the fast pace and modern construction make qualitatively new demands on building materials and structures. While great attention is paid to the production of glued wooden structures. Such designs on a number of technical and economic indicators are superior to metal and concrete have low component weight, relatively high strength and stiffness with sufficient reliability and durability. At the same time, negative characteristics of the wood (the dependence of the properties from its structure, defects, need for and considerable expense of quality timber, excessive massiveness of the cross-sections, creep under sustained loading, etc.) restrict the scope and impair the indicators of glued wooden structures. One of the ways to address these shortcomings and increase techno-economic efficiency – reinforcement of sections of glued wooden structures and elements of steel or fiberglass reinforcement. This can significantly reduce the consumption of wood, reduce Assembly mass, to improve the quality and reliability of wooden structures, working mainly in bending and compression with bending.

Publication date: 25.05.2017
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Umarova Zukhrokhon Murzoturabovna , candidate of technical sciences , старший преподаватель
Polytechnic Institute of Tajik Technical University named after academic M. Osimi , Tajikistan

«Machine assembly with a new material handling mechanism in the sewing machine»

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The paper presents the dynamic model of the machine assembly with a recommended mechanism for moving material and the definition of the law of rails motion under various system parameters. The author has suggested the solution implemented by the system of differential equations numerically on the PC and the system describing the motion of the machine set. Recommended values ​​of the parameters of elastic links of material transfer mechanism have been obtained. The researcher has developed the methods of kinematic and dynamic analysis of the material transfer mechanism with elastic elements of the sewing machine and has approved the parameters and development of the design.

Технические науки

Publication date: 24.10.2017
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Umarova Zukhrokhon Murzoturabovna , candidate of technical sciences , старший преподаватель
Polytechnic Institute of Tajik Technical University named after academic M. Osimi , Tajikistan

«Mechanism of material movement and its description»

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The article provides the kinematics chart of mechanism of material movement of sewing machine and determination of law of lath motion at the different parameters of the system and its equalization. It also determins concrete values of linear speed of point Е of lever – laths at moving of material in sewing machines. A mechanism is worked out with the storage of energy as a conical spring, that operates at the horizontal moving of lath and a mechanism is executed as the reserved kinematics chain.