- TITLE:
DYNAMIC ANALYSIS AND CONTROL OF MODULAR UNIVERSAL ROTARY WELDING DEVICE
- AUTHOR(S):
Y. Kuznetsov, N. Pidhornyi
- ABSTRACT:
The article considers dynamic modeling and design features of a universal rotary welding device adapted to the needs of modern production. A modular construction principle is described, which allows to increase the functional flexibility and maintainability of the system. Based on the Lagrangian approach, the equations of motion for the rotary and tilting components of the mechanism are formulated, taking into account the action of external loads, damping forces and moments of inertia. Control options are analyzed, in particular the use of PID and adaptive controllers, which allow to ensure high positioning accuracy and reduce vibrations during operation.
- DOWNLOAD:
DYNAMIC ANALYSIS AND CONTROL OF MODULAR UNIVERSAL ROTARY WELDING DEVICE
- TITLE:
THE CONCEPT OF A HYBRID MOBILE ROBOT
- AUTHOR(S):
V. R. Kryvosheia, Y. M. Kuznetsov
- ABSTRACT:
The article considers the concept of a hybrid mobile robot that combines the capabilities of a walking platform and a quadcopter. The proposed system provides effective adaptation to complex terrain and the ability to switch to air mode to overcome obstacles. The design features, control algorithms, and energy consumption optimization are analyzed. Potential areas of application include rescue operations, military reconnaissance, and exploration of hard-to-reach areas.
- DOWNLOAD:
THE CONCEPT OF A HYBRID MOBILE ROBOT
- TITLE:
AUTOMATED INSTALLATION FOR WELDING PIPES WITH ADDITIONAL ELEMENTS
- AUTHOR(S):
Y. Kuznetsov, D. Stolyarchuk
- ABSTRACT:
The creation of a universal installation is proposed, which allows the production of functional and high-quality hydraulic cylinders at an affordable price for Ukrainian enterprises engaged in the manufacture of special equipment.
- DOWNLOAD:
AUTOMATED INSTALLATION FOR WELDING PIPES WITH ADDITIONAL ELEMENTS
- TITLE:
TECHNOLOGIES FOR ELECTRON BEAM WELDING OF COPPER AND ALUMINUM ALLOY
- AUTHOR(S):
B. Stoyanov, M. Ormanova, St. Valkov, A. Anchev, Vl. Dunchev, D. Kaisheva, G. Kotlarski
- ABSTRACT:
In this work the results from electron-beam welding of copper and Al6082T6 aluminum alloy are presented. The different technologies for sample preparation and process conditions were applied to achieve strong connection between these two dissimilar materials. The influence of the filler presence on the structure and mechanical properties of the welded joint is studied in comparison with these without filler. The X-ray diffraction (XRD) method was used to obtain the phase composition of the welded joints. Scanning electron microscopy (SEM) was used for the study of the microstructure of the welds. The mechanical properties were studied and proved by means of micro-hardness measurements and tensile tests.
- DOWNLOAD:
TECHNOLOGIES FOR ELECTRON BEAM WELDING OF COPPER AND ALUMINUM ALLOY
- TITLE:
QUO WADIS NANOTECHNIC OR ANOTHER STEP IN TRANSITION FROM THE CLASSICAL NEWTON'S MECHANICS TO QUANTUM MECHANICS
- AUTHOR(S):
P. Feodorov, S. Kartunov
- ABSTRACT:
В публикацията се изказва позиция относно развитието на нанотехниката и нейното влияние в прехода от кла-сическа към квантова механика. Разгледани са историческият аспект на проблема, основните понятия, приликите и разликите между двете механики и промените в хода на този преход. Накрая се дава скромно мнение за по-нататъшното развитие на про-цеса или отговор на QUO WADIS нанотехника. Ключови думи: квантова механика, постулати, основни моменти в развитието.
- DOWNLOAD:
QUO WADIS NANOTECHNIC OR ANOTHER STEP IN TRANSITION FROM THE CLASSICAL NEWTON'S MECHANICS TO QUANTUM MECHANICS
