AEROjournal - ročník 16.; číslo 2/2020

Permanent URI for this collectionhttps://drepo.uniza.sk/handle/hdluniza/401

Browse

Search Results

Now showing 1 - 6 of 6
  • Thumbnail Image
    Item
    AEROjournal - celé číslo 2/2020
    (University of Zilina, 2020)
  • Thumbnail Image
    Item
    Design procedure and honeycomb screen implementation to the air transtport department’s subsonic wind tunnel
    (University of Zilina, 2020) Hrúz, Michal; Pecho, Pavol; Bugaj, Martin
    Wind tunnels are the most widely used tools when comes to validation of Reynold number. Most of wind tunnels use various air straighteners or flow conditioners to achieve as most unified air flow as it’s possible. This article deals with design and creation procedure of air flow straightener – honeycomb screen. Based on mathematical relations and empirical experience defines dimensions and characteristics for subsonic wind tunnel of the Air Transport Department of University of Žilina. Wind tunnel equipped with a suitable screen provides more relevant and accurate data, which are crucial for final validation of results of test objects.
  • Thumbnail Image
    Item
    Study of reinforcement design h-profile of aircraft wing spar
    (University of Zilina, 2020) Pecho, Pavol; Magdolenová, Paulína; Hrúz, Michal; Kováčik, Pavel; Škvareková, Iveta
    In today's world, with ever-increasing safety requirements, there is a growing demand to maintain or reduce production costs. In aviation, in addition to factors like weight and related variables such as resistance to vibration, corrosion, temperature and other are also considered. The task of this paper is to analyse unconventional designs of wing beams with respect to the current requirements of the aviation industry. In the article, the authors analyse the possibilities of design modification either by adding ribs to the profile, or by changing the cross-section of the profile itself. In practice, such design changes would increase weight, production time and finances, but also increase strength and thus safety. All proposed changes were subjected to strength analyses by FEM (Finite element method) computer simulations. The article output is the selection of suitable designs for further observation and experimental verification to ensure comprehensive results for the possibility of implementation in practice. Despite the non-traditional shapes of the proposed wing beam cross-sections, the authors assume that traditional beam shapes will be gradually modified more efficiently.
  • Thumbnail Image
    Item
    Experimental state of thrust testing of aircraft reciprocating internal combustion engine
    (University of Zilina, 2020) Mrva, Matúš; Pecho, Pavol; Hrúz, Michal; Škvareková, Iveta; Bugaj, Martin
    The project “Experimental State of Thrust Testing of Aircraft Reciprocating Internal Combustion Engine” is aimed at creating a complex measuring device in order to obtain selected characteristics and parameters of the engine using different types of propellers. In addition to the basic measured parameters such as. thrust, temperature, speed and fuel flow will be a state of the art to test the latest prototype propellers designed for aircraft models. After its construction, the experimental state will be used as a study aid for testing various types of conventional as well as currently developed propellers, engine characteristics and teaching of the whole equipment in the process of teaching, training of aircraft mechanics and for presentation purposes of the University of Žilina.
  • Thumbnail Image
    Item
    Space flights a new option for intercontinetal travel – solution desing
    (University of Zilina, 2020) Mrňa, Dominik
    This paper describes problem of space flight intercontinental flight with passengers or cargo via suborbital orbits. It describes the necessary monitoring network as well as the operating procedures with connection of flights in airspace and in space itself. Paper takes into account existing models of spacecraft (space vessels) and concept designs to introduce possible solutions to this type of travelling. Last section deals with the issue of ground infrastructure – spaceport, for a given type of transport and focuses on the existing spaceport in USA and presents it as a model for future spaceports around the world.
  • Thumbnail Image
    Item
    New regulations for UAS flights
    (University of Zilina, 2020) Kandera, Branislav; Škultéty, Filip; Badánik, Benedikt
    The paper deals with the legislation in the field of unmanned aircraft systems (UAS) in the Slovak Republic. The main goal of the paper is to analyse the current legislative framework, which sets the basic rules and restrictions. The article’s contribution is a description of the latest Implementing Regulation (EU) 2019/947. The solution to the issue consists of an analysis of the requirements for changes in current legislation based on people’s experience from practice. The reason for the changes is to facilitate flying with UAS for all user groups, provided that safety is maintained, and risks are minimised. These new regulations are causing the most significant changes, especially for organisations that will perform aerial work with the UAS in the Specific category. These organisations need to transform their operations manuals and extend the aerial work system with a risk analysis.