Naslov
THE 3D PRINTED ASTRONAUTICAL PROBE SIMULATION ANALYZING THE FREE-FALL

Autori
Maričić, Sven ; Mrša, Iva ; Păcurar, Răzvan ; Mrša, Zoran

Izvornik
Acta Technica Napocensis, Series: Applied Mathematics, Mechanics and Engineering (1221-5872) 65 (2022), 2; 171-178

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Additive technologies, astronautical probe, CAD/CAM, Ansys Fluent simulation, COVID19 spreading control

Sažetak
This paper presents the concept and study of a 3D printed prototype of the atmospheric probe. An instrument for weather and atmospheric measuring can be used for a search with specific design features. Due to solid technological growth, environmentally friendly materials can now be used in 3D printing techniques while retaining the requisite model characteristics. The proposed model will theoretically analyze the environmental consequences of pandemics like COVID-19. The stages of a model probe with structural cross-sectional details are presented. In calculations and Ansys fluent simulations, we tested the free fall study. Computer CAD model simulation is measured with the average free-fall time to arrive on Earth from a 21 km height in the atmosphere. The resulting speed field is simulated with the chosen drop speed. We determined the drag force by flow simulation for a set of 5 different heights (0, 500, 11000, 19000 and 19500 m) with appropriate air density, pressures, and velocity. The free fall-speed curves versus height are given for three sample masses: 0.2, 0.4, and 0.5 kg. Finally, the average time of free fall for samples of various weights can be determined and the curve interpolated.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo, Zrakoplovstvo, raketna i svemirska tehnika, Temeljne tehničke znanosti

POVEZANOST RADA