Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 15

Liczba wyników na stronie
first rewind previous Strona / 1 next fast forward last
Wyniki wyszukiwania
Wyszukiwano:
w słowach kluczowych:  aircraft operation
help Sortuj według:

help Ogranicz wyniki do:
first rewind previous Strona / 1 next fast forward last
PL
Artykuł prezentuje wybrane z dorobku naukowego Instytutu Technicznego Wojsk Lotniczych metody oceny niezawodności i bezpieczeństwa techniki lotniczej. Badanie niezawodności i bezpieczeństwa zostało poprzedzone wdrożeniem własnego systemu informatycznego do wspomagania procesu eksploatacji, zawierającego moduły: ewidencji, banku danych i przetwarzania informacji eksploatacyjnych. System przetwarzania był wzbogacany opracowanymi modelami oraz algorytmami oceny. Ocena niezawodności i bezpieczeństwa wojskowych statków powietrznych odbywa się poprzez ewidencję uszkodzeń odpowiednio poklasyfikowanych ze względu na przyczyny i skutki, które umożliwiają wyznaczanie pewnych wskaźników i ich korelacje z incydentami oraz wypadkami lotniczymi. Istotnymi wskaźnikami oceny są parametr strumienia uszkodzeń, uszkadzalność, prawdopodobieństwo poprawnego wykonania operacji lotniczej z uszkodzeniem i bez uszkodzenia statku powietrznego. Uwzględnia się sprzyjające warunki lotu i występujące zakłócenia. Ocena korelacji między częstością uszkodzeń a prawdopodobieństwem pomyślnej operacji lotniczej pozwala ocenić związki między uszkadzalnością i bezpieczeństwem lotów.
EN
This paper presents methods of dependability assessment and safety of aeronautical engineering selected from scientific achievements of the Air Force Institute of Technology. Studying dependability and safety was preceded by the implementation of the computer system used for the support of the operational process and consisting of the following modules: recording, database and module for processing of operational information. The processing system was provided with the developed models and assessment algorithms. The dependability and safety of military aircraft are assessed by registering defects appropriately classified into causes and effects that determine certain factors and their correlation with aircraft incidents and accidents. A significant assessment factor is a failure flux parameter, damageability, and probability of performing an aircraft operation with or without failure to the aircraft. Favourable flight conditions and the occurring disruptions are taken into consideration. Correlation assessment between failure frequency and the probability of favourable operations enables us to evaluate the relationship between dependability and flight safety.
EN
Flight safety, which characterizes the aviation industry, is an important element that contributes to increasing the trust of customers and passengers. The aforementioned factor closely corresponds to the reliability of aircraft and their individual components, including power units. Over one hundred years of development of aviation techniques has led aviation to the currently observed level of safety and reliability. Aviation techniques should be understood as technologies as well as local and global regulations affecting individual branches of the industry. Guidelines No. 9 of the President of Polish Civil Authority of August 29, 2016 on the inter-repair periods of piston engines, indicate the possibility of waiving the requirements related to the performance of major repairs, and a number of conditions must be met. One of the requirements set out in the Guidelines is performing a spectrographic analysis of engine oil in order to estimate the rate of wear of individual engine parts (ULC, 2016). The main goal of this study was to recognize whether regular analysis of engine oil may affect the assessment of the technical condition of aircraft piston engines based on the example of ROTAX 912S, thus affecting or not influencing the maintenance intervals. The engines referred to in the research were produced in the amount of about 2,000 units. Thus, these engines gained popularity as power units for airplanes, helicopters, and gyroplanes. With the increasing number of ROTAX units introduced into service, research into the technical condition becomes more important due to their percentage share in the market.
3
Content available remote IT support for test flights
EN
The paper reviews the significance of conducting test flights and the statistical analysis of air events in their course. It was demonstrated that it is necessary to support the processes of analysing and evaluating the selection of the crew for tasks conducted using a specific aerial vehicle. The authors presented an IT system supporting superiors supervising test flights, simultaneously increasing the effectiveness of managing safety and preventive actions. The system's design was briefly described and its operation confirmed using selected examples. The results were graphically visualized, in a manner exhibiting high legibility and simplicity of the system's operation.
PL
W artykule przedstawiono znaczenie wykonywania lotów próbnych oraz analizę statystyczną zdarzeń lotniczych podczas ich realizacji. Wykazano, że niezbędne jest wsparcie procesów analizy i oceny doboru załogi do zadań wykonywanych na konkretnym statku powietrznym. Zaprezentowano opracowany system informatyczny wspierający przełożonych podczas prowadzenia nadzoru nad lotami próbnymi, zwiększając jednocześnie skuteczność zarządzania bezpieczeństwem i działaniami profilaktycznymi. W skrócie przybliżono budowę systemu, a jego działanie potwierdzono na wybranych przykładach. Wyniki zobrazowano graficznie, w sposób pokazujący dużą czytelność i prostotę działania systemu.
PL
W artykule przedstawiono innowacyjną, zweryfikowaną w warunkach terenowych, metodę poprawy nośności naturalnych nawierzchni lotniskowych, które stanowią jeden z elementów systemu bezpieczeństwa lotów. Są one zabezpieczeniem drogi startowej w przypadku wykołowania statku powietrznego poza jej nawierzchnię. Służą też do prowadzenia operacji startów i lądowań wojskowych statków powietrznych. Z tego powodu wymaga się od nich nośności na odpowiednim poziomie, zapewniającym bezpieczeństwo wykonywania operacji lotniczych. Porty lotnicze nie mogą pozwolić sobie na długotrwałe wyłączenie lotniska, zasadne jest więc poszukiwanie skutecznych i szybkich w realizacji rozwiązań poprawiających nośność naturalnych nawierzchni lotniskowych. Autorzy zaproponowali zastosowanie kraty lotniskowej wciskanej bezpośrednio w naturalną nawierzchnię lotniskową.
EN
The article presents an innovative method that was verified in the field. It is aimed to improve the load bearing capacity of airfield pavements, which are one of the elements of the flight safety system. Airfield pavements protect the runway in case when the aircraft is taxiing beyond the runway. Moreover, they are also used to perform starting and landing operations of military aircraft. Due to this, they need to have an adequate load bearing capacity that ensures the safety of performing aircraft flights. Airports cannot afford to be shut down for a long time; thus, it is essential to look for efficient and fast solutions that could improve the load bearing capacity of airfield pavements. The authors suggested to apply geogrid immersed in natural airfield pavement.
EN
The aim of the article was to develop a tool to support the process of planning and managing aircraft (ac) maintenance. Aircraft maintenance management has been presented for scheduled technical inspections resulting from manufacturers’ technical documentation for ac. The authors defined the problem under investigation in the form of a four-phase decisionmaking process taking into account assignment of aircraft to airports and maintenance stations, assignment of crew to maintenance points, setting the schedules, i.e. working days on which aircraft are directed to maintenance facilities. This approach to the planning and management of aircraft maintenance is a new approach, unprecedented in the literature. The authors have developed a mathematical model for aircraft maintenance planning and management in a multi-criteria approach and an optimisation tool based on the operation of a genetic algorithm. To solve the problem, a genetic algorithm was proposed. The individual steps of the algorithm construction were discussed and its effectiveness was verified using real data.
PL
Lotnictwo ogólne to osobny segment lotnictwa cywilnego, ze względu na rodzaj działalności lotniczej zaliczamy do niego: lotnictwo rekreacyjne i sportowe, lotnictwo biznesowe, prace lotnicze, szkolenia lotnicze. Jest często pomijanym segmentem lotniczym w statystykach. Artykuł dotyczy statystyk lotnictwa ogólnego w portach lotniczych Polski Południowej. Porusza problematykę całego sektora lotnictwa ogólnego – jego charakterystykę oraz cechy determinujące jego wydzielenie. Przedstawia ogólne statystyki sektora, a dopiero po przedstawieniu całego segmentu wykonana została analiza ruchu w wybranych portach lotniczych: Kraków – Balice, Wrocław – Strachowice, Katowice – Pyrzowice i Rzeszów – Jasionka. Dokonano oceny panujących tendencji w tym segmencie oraz określono możliwości rozwoju sektora lotnictwa ogólnego.
EN
General Aviation is a separate segment of Civil Aviation, taking into account different type of aviation activities it includes recreational and sport aviation, business aviation, aerial work and flight training. Also it is often overlooked in the aviation statistics. This article concerns mainly the statistics of General Aviation in the airports of the South Poland. This research paper raises also the issue of the whole sector of General Aviation - its characteristics and features, which determine it as a separate branch of air transport. Therefore, the general statistics of the considered air transport segment are presented as the first step, and only then the results of air traffic analysis in the selected airports are described, namely International Airport Kraków–Balice, Wrocław–Copernicus Airport, Katowice International Airport and Rzeszów–Jasionka Airport. The evaluation of trends in General Aviation as well as the determination of opportunities to develop this sector of air transport were done.
EN
The design of airports and the organization of their work requires the recognition of the basic components of the air transport process, consisting of an "aerial" part, including the landing phase and the landing operation itself, as well as take-off, the "ground" part, including the task of taxiing aircraft on apron, ground handling tasks, "terminal" part, including passenger handling tasks. These elements form a cause-and-effect sequence, or a series-parallel structure that determines the quality of services provided by the airport, their efficiency, reliability and price. The article presents the issues of decision support for the operation and maintenance of airport infrastructure and traffic management on the ramp and within the airport, i.e. the operation of allocating aircraft to the gates of "gates" using simulation tools. Aircraft taxiing operations on the tarmac integrate the flight phase (along with its components and its problems, such as arriving and departing sequencing) with the ground handling phase of aircraft and passengers at terminals. The model presented in the article is a single element of a holistic approach to the operation of an airport. The overall model consists of the development of decision models for the organization of aircraft traffic on the apron, algorithms for their solution and the possibility of practical application as a simulation tool for analyzing and assessing aircraft traffic processes in the take-off, taxiing and landing phase. To describe the model, a formal mapping of the structure of the necessary airport elements was proposed. A formal record of boundary conditions and criteria relevant to aircraft allocation processes is presented due to the minimization of travel time of passengers transferring between two aircraft assigned to two different gates. Test results can be used in practice, among others by airspace controllers and airport designers for: analyzing and assessing the possibilities of increasing airport capacity, analyzing and assessing the determination of taxiway lengths, maintaining high safety reserves, etc.
8
Content available remote Analiza możliwych przyczyn zakłóceń w przepływie informacji w systemie A-CDM
PL
Wzrastający ruch lotniczy, a wraz z nim wzrastająca ilość przetwarzanych informacji stanowi poważny problem dla efektywnej i bezpiecznej realizacji operacji lotniskowych. W Systemie Wspólnego Podejmowania Decyzji (A-COM), który jest próbą odpowiedzi na ten problem, przyjmuje się, że poprawa sytuacji może być osiągnięta poprzez lepsze wykorzystanie zasobów oraz lepsza przewidywalność zdarzeń. W artykule przeprowadzono analizę możliwych zakłóceń w przepływie informacji w ramach A-COM. Jej celem było poszukiwanie najbardziej newralgicznych miejsc w strukturze przepływu informacji istotnych dla prawidłowej realizacji procesów eksploatacji portu lotniczego. Opracowano schemat przepływu informacji pomiędzy partnerami systemu A-COM, a następnie zidentyfikowano zakłócenia z wykorzystaniem metody Bow-Tie. Rezultatem przeprowadzonej analizy jest katalog możliwych przyczyn zakłóceń oraz wywoływanych przez nie skutków. Badania te pokazują, że skuteczność wdrożenia A-COM w porcie lotniczym może być silnie zależna od identyfikacji najważniejszych miejsc powstawania zakłóceń w przepływie informacji, która pozwoli na efektywne przeciwdziałanie i zapobieganie ich skutkom.
EN
Growth in air traffic and increasing number of processed data along with it constitutes a major issue for effectiveness and safety of implementation of airport operations. In the Airport Collaborative Decision Making (A-CDM) which is regarded as an attempt to solve this problem, it is assumed that the improvement of the situation could be achieved by the better usage of resources and improved predictability of events. In this article analysis of possible interferences in A-CDM information flow was carried out. It aimed at searching for the most critical places in the structure of information flow, essential for appropriate implementation of operational processes at the airport. The information flow scheme between A-CDM partners was developed and then interferences applying Bow-Tie method were identified. The conducted analysis resulted in the catalogue of possible causes of interferences and effects triggered by them. This research shows that effectiveness of implementation of A-CDM might be strictly dependable on spotting the most important places generating interferences in the information flow and will allow the effective prevention of its consequences.
EN
The article refers to the problem of assigning the aircrafts to stops points on the apron. The aim of this paper is to develop the algorithm, which will be used to this assignment. The assignment problem of aircrafts to stops points is the complex decision problems, which refer to the problems of designating the minimal path in the graph. The assignment model was described, i.e. decision variables, constraints and the criterion function. Decision variables take the binary form and determine the connections between the elements of infrastructure of the apron, i.e. touchdown points, intermediate points and stop points. Constraints take into account the number of aircrafts in the given period, the number of unoccupied stop points. The criterion function determines the minimum driving time of the aircraft on the apron. In order to designate the routes in international transport the heuristic algorithm, i.e. ant algorithm was developed. The steps of building this algorithm were presented. This algorithm was verified in the C# programming language. The results generating by the presented algorithm were compared with the results generating by the random algorithm.
EN
The article is devoted to the problem of decision support in a simulation environment prepared for the air traffic control service. The limitations resulting from the functionality of the airport have been presented. In addition, the “integration” problems resulting from the movement of aircraft on the apron have been presented. The article outlines optimization problems such as minimizing the total taxiing time, taking into account the waiting time for the start of the runway, minimizing the time elapsed from the first taxiing to the end of taxiing by the last aircraft or multi-faceted functions, including, for example, penalties for deviations from the schedule of take-off / landing operations, failure to keep the CFMU time slots, or for too long taxiing cycles. The article presents restrictions on taxiing of aircraft, integration with other airport operations, decision problems and applied algorithms, groups of restrictions on taxiing of aircraft, scheduled flight table, dependencies between individual operations, positioning of aircraft.
EN
Multi-role aircraft as a technical object of a certain functional purpose and operating characteristics resulting from its construction, affects the operating environment mechanically, as a source of disturbance of the medium in which it moves and chemically, by generating the emission of harmful substances resulting from the need to use consumable fuels. Operation of multi-role aircraft, in contrast to civil aircraft, is characterized by high volatility of flight data resulting from the diversity of performed tasks. Therefore it seems desirable to attempt the ecological evaluation of the drive in terms of emissions on the basis of a dedicated test for a particular group of aircraft. An attempt at such an assessment is presented in this article.
12
EN
Reliability is a very broad term that focuses on the ability of a product to perform its intended function. Mathematically speaking, reliability can be defined as the probability that an item will perform its intended function without failure for a specified period of time under stated conditions. The main goal in almost all daily activities is safety. Many kinds of researches and development try to find out how to produce things easily with appropriate amount of safety especially in aircraft operation.
PL
W referacie przedstawiono problem wyznaczenia wybranej charakterystyki eksploatacji statku powietrznego ze szczególnym uwzględnieniem stanu obsługiwania. Został również przedstawiony program komputerowy, którego działanie pozwala na poprawne planowanie prac obsługowych dla statku powietrznego.
EN
The paper presents problem of designate the aircraft operation characteristic, which highlights operation conditions. Moreover, it also describes the computer programme, which enables to plan precisely the maintenance works for aircrafts.
PL
W referacie przedstawiono probabilistyczny model czasu obsługi naziemnej statku powietrznego w porcie lotniczym. Model ten zostanie zaimplementowany w symulacji komputerowej odzwierciedlającej proces eksploatacji statków powietrznych, którego zadaniem będzie minimalizacja czasu obsługi technicznej statków powietrznych.
EN
The paper presents probabilistic model time ground handling of aircraft. The model will be implemented in a komputer simulation process that reflects the operation of aircraft, whose task will be to minimize the time maintenence aircraft.
first rewind previous Strona / 1 next fast forward last
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.