One of the most important measures to reduce the cost of preparing mortar units is the use of mortar shooting trainers operating according to the 'shell in shell' principle that best meets the needs of military forces. When increasing the efficiency of using equipment for mortar shooting training and seeking to reduce their production costs, further research on external ballistics is strictly necessary in order to improve the structural parameters of mine imitators. With the help of finite element modelling techniques, this article investigates air flow over mortar mine imitators. In order to achieve the aim, a package of Mechanical Desktop Software was used for creating a dimensional model of mine imitator the model of which was imported into ANSYS CFX and a finite element numerical model was generated. Considering the literary sources of experimental studies, SST turbulence model generating the results closest to those of experimental research was selected. After modelling, air drag force influencing mine imitator and the drag coefficient at different air flow speed were established.
This article examines the construction of a remotely controlled mobile robot created 5 years ago at Alytus College, the possibilities of its use and the study of the possibilities of its use. During the study, the created mobile robot with other robots developed by foreign scientists is analyzed and compared and a corresponding way to use it is sought. Keywords: robot, construction, control, research
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