3D analiza geometrijskih faktora i njihovo uticanje na opstrujavanje vazduha oko satelitske antene

Abstract

Ovaj rad se bavi problematikom geometrijskih karakteristika satelitske antene i uticajem tih karakteristika na funkcionalnost i bezbednost. U okviru rada je izvršeno formiranje određenog broja 3D modela satelitske antene. Svi modeli su formirani u softverskom programu SolidWorks, i u istom programskom paketu izvršene su analize opstrujavanja vazduha oko antene za uslove na teritoriji grada Beograda. Analizom modela došlo se do zaključka kao bi bilo najsvrsishodnije prilagoditi geometrijske karakteristike satelitske antene da bi konačan proizvod ispunjavao funkcionalne i bezbednosne zahteve. Analiza je bazirana na laboratorijskim ispitivanjima, koja su sprovedena na satelitskim antenama. Tom prilikom došlo se do zaključka da geometrijske karakteristike same antene u velikoj meri utiču na funkcionalnost i bezbednost proizvoda. Radi jednostavnijeg i, u krajnjoj meri, finansijski opravdanijeg pristupa izradi konačnog proizvoda-satelitske antene, osnovna analiza je izvršena na 3D modelima, na kojima su rađene promene geometrijskih karakteristika. Modeli su analizirani i dobijeno je optimalno rešenje, od koga može da se napravi konačan proizvod. Rad pokazuje opravdanost formiranja 3D modela, njegove analize i pokazuje jednostavnost promene geometrije proizvoda. U veoma velikoj meri dobija se konačni proizvod koji je ispitan u uslovima bliskim realnom sistemu u kom proizvod treba da funkcioniše.

This paper deals with the geometrical characteristics and their influence on the functionality and safety of satellite dishes. Within the paper, a number of 3D models of satellite dishes were formed. All models were established in the software program SolidWorks, and the same software package was used for the analysis of the air flow over the satellite antenna for the conditions at the territory of Belgrade. The analysis of the model provides an insight into the geometrical characteristics of the satellite dishes which would be the most appropriate to adopt in accordance with the requirements of the final product functionality and security. The analysis is based on laboratory tests, which were conducted on satellite dishes. On that occasion, it was concluded that the geometrical characteristics of the antenna itself greatly affect the functionality and safety. In order to simplify and to make a better financial approach to designing the final product-satellite dish, a basic analysis was carried out on the 3D models whose geometric characteristics can be changed . The models were analyzed to yield an optimal solution, since it is possible to get the final product. The paper justifies forming a 3D model and analysing it, and shows the simplicity of the product geometry changes. The obtained final product is to a very large extent functional since it has been tested in the conditions - +-close to the real system where the product should operate.