Wyniki wyszukiwania - BazTech

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Landmarks in Romanian History of Anti-Aircraft Artillery: The Anti-Aircraft Gun Director Computer, “Ion Bungescu”

Gherman Laurian, Roman Cosmina, Żmigrodzka Małgorzata

Safety & Defense

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2021

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2

144--157

EN

The main purpose of this article is to present the decisive contribution that Brigadier General Ion Bungescu had to the development of anti-aircraft artillery in Romania. To achieve this objective we describe in the paper the evolution of the anti-aircraft gun director computer he invented, as well as its modus operandi.The adopted methods include quantitative and qualitative analyses of documents, manuals and albums published during the considered period, and some published by Brigadier General Ion Bungescu.The results of the article are presented in the context of the accelerated development of military aviation between the two world wars. This development put terrible pressure on the development of anti-aircraft artillery that started with land guns adapted for anti-aircraft firing in 1916 and reached anti-aircraft guns controlled by Gun Director Computer in 1945. We can compare the development of military aviation during that time with the development of information technology over the last 30 years, from connecting computers in the network to the use of artificial intelligence.

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Systems for aerial surveillance and security - a step forward for air force academies

Miron Ecaterina-Liliana, Nagy Daniela, Gherman Laurian, Marinov Marin

Zeszyty Naukowe. Transport / Politechnika Śląska

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2020

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z. 106

123--130

EN

This paper is a report in brief of the project that “Henri Coanda” Air Force Academy, in collaboration with partners from Poland and Bulgaria, carried out under the aegis of the Erasmus + program of the European Union by the end of 2018. The project was called Systems for Aerial Surveillance and Security (SASS). The project proposed the initiation of a process of uniformisation of competences necessary for the people involved in the field of aviation, namely obtaining a joint study plan for pilots, air traffic controllers, and air surveillance officers [3]. It opened the way for cooperation between the Air Force Academies that began a joint semester of study. Achieving the objectives of the project meant introducing an online teaching/learning system based on an e-learning platform. The e-learning features have been fully utilised through the introduction of a videoconference system that allows teaching/learning activities for professors/students at a distance. The completion of the project was carried out by evaluating the results obtained at different stages. The analysis was based on the feedback from the main target groups - students, teachers and beneficiaries of the graduates. Two periods of teacher and student mobility were required for evaluation and analysis. The students’ and teachers' opinions on the implementation of the curriculum by means of the e-learning platform were analysed in detail.

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New design of an electromagnetic launch system for tactical UAVS

Gherman Laurian, Chioseaua Bogdan, Ghiciuc Raluca

Zeszyty Naukowe. Transport / Politechnika Śląska

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2020

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z. 108

45--51

EN

UAVs in recent times have achieved an increased rate of development, and hence, can cover a large spectrum of missions. Based on the dimensions, we can find UAVs from large dimensions used to operate at the global level through mini UAVs used inside buildings. The large UAVs are operated almost like a manned aircraft. For this reason, it uses the airport infrastructure and a runway for take-off and landing. The mini UAVs can be launched by hand. Between these two extremes, there is a category of UAVs used at the tactical level, which cannot be launched by hand and is not possible to build a runaway. These UAVs are launched using RATO (rocket-assisted take-off) or catapults. To improve the launch system, this should have a few moving parts to reduce maintenance costs and be powered by electric energy to be easily integrated into the automatic control loop. This paper presents a new design of a launch catapult based on electromagnetic energy for tactical UAVs. This technology is under development to launch projectiles with high velocity; however, it has theoretically proved the possibility to equally launch UAVs. The second part presents the theoretical approach necessary to find the expression of force under certain approximation for electromagnetic launch system design.

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Linear electromagnetic accelerator

Gherman Laurian, Ghiciuc Raluca

Safety & Defense

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2019

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2

17--21

EN

Over time, the weapons have been based on mechanical energy (bows, catapults) and chemical energy (guns, missiles), however, at the moment, more and more weapons are designed using electromagnetic energy (railgun, coilgun). The focus of this paper is to obtain the desired muzzle velocities of a projectile according to the existent current. In the first part of the paper, the railgun and coilgun design are presented along with their most important advantages. Based on these observations, a new design of an electromagnetic launch system is presented. Next, Maxwell interactive software package was used that applies the finite element method (FEM) to analyze and solve 3D electromagnetic field problems in order to analyze the variation of acceleration force, speed in time. All simulation data shows that this design has a great potential, because of the adaptability to different applications.