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    Wyświetlanie 1-5 z 5
    Tytuł:
    Engineering availability of aircrafts
    Autorzy:
    Lewitowicz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/242226.pdf
    Data publikacji:
    2009
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    transport
    aircraft
    diagnostic
    failure
    Opis:
    Engineering availability and operational readiness of an aircraft are requisites for its ability to operate. After the aircraft has been supplied, both features determine airworthiness of the aircraft, in compliance with the ARC (Airworthiness Review Certificate). Improvement in methods of maintaining the aircraft availability proceeds in compliance with the MSG (Maintenance Steering Group) rules. The paper has been intended to outline the process of maintaining the engineering availability of the aircraft, with account taken of: aircraft maintainability, importance of the engineering diagnostics, and evaluation ratesfor dijferent maintenance patterns. Maintaining technical ability/ airworthiness of an aircraft, ground service of aircrafts, service-friendliness of an aircraft, unfitness and damages to an aircraft, ground diagnostic andprovision equipment for A-380, computer aided verification of an inspection of a front undercarriage (B) of an aircraft (A) and service of the B-787 aircraft (C), percentage for composite material portion in the structure of some aircrafts and helicopters, positions of composite material airframe elements in B-75 7/7 67, B-777, B-787 are presented in the paper.
    Źródło:
    Journal of KONES; 2009, 16, 2; 255-262
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Field repairs of aircraft engines
    Autorzy:
    Cwojdziński, L.
    Lewitowicz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/241779.pdf
    Data publikacji:
    2012
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    transport
    aviation
    aircraft
    field repairs
    optimization
    Opis:
    The challenge to the manufacturer or service provider is how to assess and define true customer expectations and then how to design, manufacture and sell the product to best meet those expectations. Each product must provide operational capabilities, which allow military forces to maintain technical and logistic superiority over a potential adversary even if it is just natural or induced environment, which can be expected over the operating and maintenance portion of life cycle. Battle damage repair is a critical factor in managing operation. We acknowledge that traditional cost minimizing measures are not always central and other performance measures such as time of repair, reliability and availability become more relevant. Assessing aircraft damages in the field and making appropriate decisions on the reparability, making repairs at the lowest repair level possible and evaluating airworthiness of subsequent repairs is critical to the air forces maintaining its force projection capability. Among other, combat damage of helicopters, damaged areas and erosion on leading edges of the compressor first stage rotor blades, achievable and optimum solution, goal function – duration minimisation, goal function – cost minimisation are presented in the paper.
    Źródło:
    Journal of KONES; 2012, 19, 4; 131-138
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Computer diagnostics of helicopter kinematic system from the perspective of hums system
    Autorzy:
    Lewitowicz, J.
    Michalak, S.
    Gębura, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1833872.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Stowarzyszenie Telematyki Transportu
    Tematy:
    computer diagnostics
    diagnostic method
    HUMS system
    diagnostyka komputerowa
    metoda diagnostyczna
    system HUMS
    Opis:
    In the kinematic system of airplanes and helicopters there are critical elements of structures on which accelerated symptoms of fatigue use are observed, e.g. in the form of: damage (peeling) of the raceway of the rolling bearing, fatigue undercuts of the gears. The article presents a method for diagnosing a kinematic system based on an on-board generator (state observer). At the beginning, some of the research problems occurring in helicopters, based on their own research data, were approximated. Particular attention was paid to the phenomenon of resonance of rolling bearings and resonance excitation of a pair of gear wheels under its influence. The effectiveness of detection of such resonance phenomena by means of the proposed diagnostic method was presented. The conclusion summarizes the conclusions that the method provides a reliable diagnosis and would be a valuable complement of previously used HUMS. The directions of further research on the development of the diagnostic method were also indicated.
    Źródło:
    Archives of Transport System Telematics; 2020, 13, 1; 26--30
    1899-8208
    Pojawia się w:
    Archives of Transport System Telematics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Radioelectronic and thermovisual support in display systems to aid in searching for sea-going ships from search & rescue helicopters
    Autorzy:
    Lewitowicz, J.
    Szelmanowski, A.
    Pazur, A.
    Sajda, K.
    Janik, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/135305.pdf
    Data publikacji:
    2018
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    avionics systems
    radioelectronic and thermovision systems
    SAR/CSAR systems
    TOPLITE system
    RSC-125G system
    W3PL helicopter
    CH53 helicopter
    Opis:
    This paper presents the basic principles of SAR (Search and Rescue) and CSAR (Combat Search and Rescue) missions, with the SAR support systems installed on-board Polish and German military helicopters presented in more detail. Mi8/17 and W3PL “Głuszec” helicopters with an integrated avionics system (designed and constructed in the Air Force Institute of Technology) used in combination with an on-board weaponry system are designed to undertake CSAR missions. A TOPLITE observation-targeting head (with TV and FLIR thermal cameras, for day and night operation respectively) and a RSC125G on-board radio direction finder were used to search for survivors. The weaponry system of the W3PL “Głuszec” helicopter is involved in supporting CSAR search-rescue tasks, e.g. functions of targeting with the use of a Head-Up Display (HUD) (through the integrated ballistic computer) and imaging with the use of a TOPLITE head monitor.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2018, 53 (125); 35-42
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Helmet-mounted display and cueing systems as pilot aids for aviation/maritime search and rescue missions
    Autorzy:
    Lewitowicz, J.
    Szelmanowski, A.
    Pazur, A.
    Michalak, S.
    Janik, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/135533.pdf
    Data publikacji:
    2017
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    integrated avionics systems
    helmet-mounted display systems
    SAR/CSAR systems
    SWPL1 “Cyklop” system
    NSC1 “Orion” system
    TOPLITE system
    RSC-125G system
    Opis:
    The paper presents selected results of analytical and construction works executed at the Air Force Institute of Technology (AFIT) in the context of possibilities of supporting the actions of a helicopter crew, i.e., pilot-crew commander, pilot-operator of on-board systems, and on-board technician participating in aviation/maritime search and rescue missions. Such support is based on using the helmet-mounted display systems SWPL1 “Cyklop” and NSC1 “Orion” for information from the observation-targeting heads and verbal communication with the survivor. Selected imaging and verbal communication devices installed on aircraft operated by the Polish Armed Forces, which are used in aviation/maritime search and rescue actions, are discussed. Particular attention is drawn to the problems associated with the integrated avionics systems of helmet-mounted imaging of piloting-navigation parameters and the helmet-mounted imaging of information from the observation-targeting heads, i.e., the on-board radio direction finder system and emergency radio, which are part of the integrated communication system. Sample structural solutions for such systems and the possibilities of their application in search and rescue missions are presented.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2017, 52 (124); 112-119
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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