List of publications on a keyword: «kinematics»


[05.00.00] Технические науки

Publication date: 25.05.2017
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Zukhrokhon M. Umarova , candidate of technical sciences , доцент, старший преподаватель
Khujand Politechnical Institute, Tajik Technical University named after academic M.S.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.

Науки о Земле (геодезия, геофизика, страноведение и др.)

Publication date: 14.11.2017
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Polina Evseichik , студентка
FSBEI of HE "Vologda State University" , Вологодская обл

«Проблемы современной навигации и методы их решения посредством применения ГНСС технологий»

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В статье описаны проблемы современной системы навигации, приведена динамика роста количества их продаж на территории России. Рассмотрены методы повышения точности и качества системы навигации, а также преимущества ГНСС технологий в определении пространственных характеристик.

Технические науки

Publication date: 17.06.2020
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Ganjina Shukhratzoda , degree-seeking student , lecturer
Khujand Politechnical Institute, Tajik Technical University named after academic M.S.Osimi , Tajikistan

«Efficient Design of the Sewing Machine's Shuttle Thread Tension Regulator»

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The paper presents the tension regulator of the Shuttle thread of the sewing machine, which consists of an arc-shaped plate spring, has two holes, the first for fixing the screw to the side surface of the bobbin cap and the second for the adjusting screw. In this case, the width of the plate spring along the entire length is the same. A disadvantage of the known design of the Shuttle thread tension regulator is that it is not possible to provide thread tension due to changes in the pressure force of the plate spring along its length in the areas of contact with the thread passing between the plate and the side surface.

Publication date: 24.10.2017
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Zukhrokhon M. Umarova , candidate of technical sciences , доцент, старший преподаватель
Khujand Politechnical Institute, Tajik Technical University named after academic M.S.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.