Bekrić, Dragoljub

Link to this page

Authority KeyName Variants
b138c57f-814f-493f-bb5f-1718550766d3
  • Bekrić, Dragoljub (2)
Projects

Author's Bibliography

Tehnološki uslovi razvoja instrumenata leta

Marjanović, Igor; Vorotović, Goran; Vorkapić, Miloš; Bekrić, Dragoljub

(Beograd : Savez inženjera i tehničara Srbije, 2023)

TY  - JOUR
AU  - Marjanović, Igor
AU  - Vorotović, Goran
AU  - Vorkapić, Miloš
AU  - Bekrić, Dragoljub
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6844
AB  - Razvoj avijacije postavio je tehnološke zahteve koji su uslovili nastanak i neprekidan razvoj instrumentalizacije leta. Praktična primena avijacije u vojne i civilne svrhe, razvoj vazdušnog saobraćaja i tehnike uopšte, povećavaju brzine, visine i dužine preleta, dok letelice postaju sve veće i složenije. Od lakih drvenih konstrukcija sa otvorenom pilotskom kabinom, danas avioni po svim vremenskim uslovima prelaze velike razdaljine što pilota i konstrukciju letelica dovodi granica izdržljivosti. Na početku, tokom pionirskog perioda, letenje je bilo u potpunosti u rukama pilota i sve odluke je donosio na osnovu svog iskustva i psihofizičkih sposobnosti. Sa povećanjem složenosti letelica i dužine preleta, sve veći uticaj na tehniku pilotiranja imaju tehnološki, ergonomski i bezbednosni uslovi. Ovaj rad se osvrće na tehnološke uslove i razvoj sistema instrumentalizacije i automatizacije leta. Primena digitalne pilotske kabine uspostavlja mnoge pozitivne standarde ali i postavlja pitanja daljeg pravca razvoja vazduhoplovstva. Poseban prikaz opisuje upotrebu i razvoj jednog od osnovnih instrumenata u pilotskoj kabini – kompasa. Ovaj instrument se i dalje, u skoro nepromenjenom obliku, nalazi u modernom digitalnom kokpitu – glass cockpit-u.
AB  - The development of aviation has set technological requirements that have conditioned the emergence and development of flight instrumentalization. The practical application of aviation for military and civilian purposes, the development of air traffic and technology in general, increase speeds, altitudes and flight lengths, while aircraft are becoming larger and more complex. From light wooden constructions and open cockpit, today planes fly long distances in all weather conditions, which brought the pilot and the construction of the aircraft to the endurance limit. At the beginning, during the pioneer period, flying was completely in the hands of the pilot and he made all the decisions based on his experience and psychophysical abilities. With the complexity of aircraft and flying, technological, ergonomic and safety conditions have an increasing influence on piloting technique. This paper describes the technological conditions and the development of instrumentation and flight automation systems. The application of the digital cockpit establishes many positive standards, but also raises questions about the further direction of aviation development. A special review describes the use and development of one of the basic instruments in the cockpit -the compass. This instrument is still, in an almost unchanged form, in the modern digital cockpit -glass cockpit.
PB  - Beograd : Savez inženjera i tehničara Srbije
T2  - Tehnika
T1  - Tehnološki uslovi razvoja instrumenata leta
T1  - Technological conditions of flight instrument development
VL  - 78
IS  - 5
SP  - 584
EP  - 591
DO  - 10.5937/tehnika2305584M
ER  - 
@article{
author = "Marjanović, Igor and Vorotović, Goran and Vorkapić, Miloš and Bekrić, Dragoljub",
year = "2023",
abstract = "Razvoj avijacije postavio je tehnološke zahteve koji su uslovili nastanak i neprekidan razvoj instrumentalizacije leta. Praktična primena avijacije u vojne i civilne svrhe, razvoj vazdušnog saobraćaja i tehnike uopšte, povećavaju brzine, visine i dužine preleta, dok letelice postaju sve veće i složenije. Od lakih drvenih konstrukcija sa otvorenom pilotskom kabinom, danas avioni po svim vremenskim uslovima prelaze velike razdaljine što pilota i konstrukciju letelica dovodi granica izdržljivosti. Na početku, tokom pionirskog perioda, letenje je bilo u potpunosti u rukama pilota i sve odluke je donosio na osnovu svog iskustva i psihofizičkih sposobnosti. Sa povećanjem složenosti letelica i dužine preleta, sve veći uticaj na tehniku pilotiranja imaju tehnološki, ergonomski i bezbednosni uslovi. Ovaj rad se osvrće na tehnološke uslove i razvoj sistema instrumentalizacije i automatizacije leta. Primena digitalne pilotske kabine uspostavlja mnoge pozitivne standarde ali i postavlja pitanja daljeg pravca razvoja vazduhoplovstva. Poseban prikaz opisuje upotrebu i razvoj jednog od osnovnih instrumenata u pilotskoj kabini – kompasa. Ovaj instrument se i dalje, u skoro nepromenjenom obliku, nalazi u modernom digitalnom kokpitu – glass cockpit-u., The development of aviation has set technological requirements that have conditioned the emergence and development of flight instrumentalization. The practical application of aviation for military and civilian purposes, the development of air traffic and technology in general, increase speeds, altitudes and flight lengths, while aircraft are becoming larger and more complex. From light wooden constructions and open cockpit, today planes fly long distances in all weather conditions, which brought the pilot and the construction of the aircraft to the endurance limit. At the beginning, during the pioneer period, flying was completely in the hands of the pilot and he made all the decisions based on his experience and psychophysical abilities. With the complexity of aircraft and flying, technological, ergonomic and safety conditions have an increasing influence on piloting technique. This paper describes the technological conditions and the development of instrumentation and flight automation systems. The application of the digital cockpit establishes many positive standards, but also raises questions about the further direction of aviation development. A special review describes the use and development of one of the basic instruments in the cockpit -the compass. This instrument is still, in an almost unchanged form, in the modern digital cockpit -glass cockpit.",
publisher = "Beograd : Savez inženjera i tehničara Srbije",
journal = "Tehnika",
title = "Tehnološki uslovi razvoja instrumenata leta, Technological conditions of flight instrument development",
volume = "78",
number = "5",
pages = "584-591",
doi = "10.5937/tehnika2305584M"
}
Marjanović, I., Vorotović, G., Vorkapić, M.,& Bekrić, D.. (2023). Tehnološki uslovi razvoja instrumenata leta. in Tehnika
Beograd : Savez inženjera i tehničara Srbije., 78(5), 584-591.
https://doi.org/10.5937/tehnika2305584M
Marjanović I, Vorotović G, Vorkapić M, Bekrić D. Tehnološki uslovi razvoja instrumenata leta. in Tehnika. 2023;78(5):584-591.
doi:10.5937/tehnika2305584M .
Marjanović, Igor, Vorotović, Goran, Vorkapić, Miloš, Bekrić, Dragoljub, "Tehnološki uslovi razvoja instrumenata leta" in Tehnika, 78, no. 5 (2023):584-591,
https://doi.org/10.5937/tehnika2305584M . .

Magnetic and mechanical characteristics of nickel-based superalloy after laser induced deformation

Milosavljević, Anđelka; Polić, Suzana R.; Srećković, Milesa; Petronić, Sanja; Vasiljević, Darko; Bekrić, Dragoljub; Nasradin, Dušan

(Belgrade: Materials Research Society of Serbia, 2018)

TY  - CONF
AU  - Milosavljević, Anđelka
AU  - Polić, Suzana R.
AU  - Srećković, Milesa
AU  - Petronić, Sanja
AU  - Vasiljević, Darko
AU  - Bekrić, Dragoljub
AU  - Nasradin, Dušan
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6190
AB  - Nickel-based superalloys are used in load-bearing structures at elevated temperature and pressure and in harsh environment. Nickel based superalloys have good mechanical properties, good oxidation and corrosion resistance. Among the most demanding applications for a structural material are those in the turbine engines, in first place for turbine blades. Nickel based superalloys consist of nickel solid solution, strengthening ϒ’ phase (Ni3Al) and carbides. At room temperature turbine blades are paramagnetic. The earlier studies reported increase in magnetic properties of Ni3Al after induced deformation. In this paper, the magnetic properties of nickel based superalloy after deformation induced by laser waves are investigated and discussed. Mechanical characteristics are analyzed with regards to changes of magnetics properties.
PB  - Belgrade: Materials Research Society of Serbia
C3  - The Twentieth annual conference YUCOMAT 2018, Programme & Book of abstract
T1  - Magnetic and mechanical characteristics of nickel-based superalloy after laser induced deformation
SP  - 120
UR  - https://hdl.handle.net/21.15107/rcub_cer_6190
ER  - 
@conference{
author = "Milosavljević, Anđelka and Polić, Suzana R. and Srećković, Milesa and Petronić, Sanja and Vasiljević, Darko and Bekrić, Dragoljub and Nasradin, Dušan",
year = "2018",
abstract = "Nickel-based superalloys are used in load-bearing structures at elevated temperature and pressure and in harsh environment. Nickel based superalloys have good mechanical properties, good oxidation and corrosion resistance. Among the most demanding applications for a structural material are those in the turbine engines, in first place for turbine blades. Nickel based superalloys consist of nickel solid solution, strengthening ϒ’ phase (Ni3Al) and carbides. At room temperature turbine blades are paramagnetic. The earlier studies reported increase in magnetic properties of Ni3Al after induced deformation. In this paper, the magnetic properties of nickel based superalloy after deformation induced by laser waves are investigated and discussed. Mechanical characteristics are analyzed with regards to changes of magnetics properties.",
publisher = "Belgrade: Materials Research Society of Serbia",
journal = "The Twentieth annual conference YUCOMAT 2018, Programme & Book of abstract",
title = "Magnetic and mechanical characteristics of nickel-based superalloy after laser induced deformation",
pages = "120",
url = "https://hdl.handle.net/21.15107/rcub_cer_6190"
}
Milosavljević, A., Polić, S. R., Srećković, M., Petronić, S., Vasiljević, D., Bekrić, D.,& Nasradin, D.. (2018). Magnetic and mechanical characteristics of nickel-based superalloy after laser induced deformation. in The Twentieth annual conference YUCOMAT 2018, Programme & Book of abstract
Belgrade: Materials Research Society of Serbia., 120.
https://hdl.handle.net/21.15107/rcub_cer_6190
Milosavljević A, Polić SR, Srećković M, Petronić S, Vasiljević D, Bekrić D, Nasradin D. Magnetic and mechanical characteristics of nickel-based superalloy after laser induced deformation. in The Twentieth annual conference YUCOMAT 2018, Programme & Book of abstract. 2018;:120.
https://hdl.handle.net/21.15107/rcub_cer_6190 .
Milosavljević, Anđelka, Polić, Suzana R., Srećković, Milesa, Petronić, Sanja, Vasiljević, Darko, Bekrić, Dragoljub, Nasradin, Dušan, "Magnetic and mechanical characteristics of nickel-based superalloy after laser induced deformation" in The Twentieth annual conference YUCOMAT 2018, Programme & Book of abstract (2018):120,
https://hdl.handle.net/21.15107/rcub_cer_6190 .