scholarly journals The Research of Modern Radar Equipment Conducted in the Air Force Institute of Technology by the Application of Military Aircrafts

2017 ◽  
Vol 40 (1) ◽  
pp. 27-65
Author(s):  
Marek Brzozowski ◽  
Mariusz Pakowski ◽  
Mirosław Myszka ◽  
Mirosław Michalczewski ◽  
Urszula Winiarska
Keyword(s):  
Research Methods ◽  
Air Force ◽  
Measurement Data ◽  
Research Area ◽  
Substantial Improvement ◽  
Industrial Plants ◽  
Technical Parameters ◽  
Radar Sensors ◽  
Aeronautical Engineering ◽  
Institute Of Technology

Abstract The publication described selected issues from the research area of modern radar equipment produced by the Polish industrial plants, using military aircrafts of various types. A technical development caused a substantial improvement of detection parameters of flying objects by radar sensors what forces changes in research methods used to verify tactical and technical parameters of these devices. The article covers research methods of radar equipment, pilots’ assistive devices as well as methods of logging and processing the measurement data applied in the Research Laboratory for Radar Equipment and Aeronautical Engineering of the AFIT (pol. Laboratorium Badań Urządzeń Radarowych i Techniki Lotniczej ITWL).

scholarly journals Urban Sub-Center Design Framework Based on the Walkability Evaluation Method: Taking Coomera Town Sub-Center as an Example

2021 ◽  
Vol 13 (11) ◽  
pp. 6259
Author(s):  
Jizhong Shao ◽  
Minge Yang ◽  
Guan Liu ◽  
Ye Li ◽  
Dan Luo ◽  
...  
Keyword(s):  
Research Methods ◽  
Quantitative Research ◽  
Design Research ◽  
Evaluation Method ◽  
Rapid Development ◽  
Research Area ◽  
Low Carbon ◽  
Design Strategies ◽  
Healthy City ◽  
Quantitative Research Methods

As current society’s reflection on the rapid development of motorization and increasing emphasis on the ecological environment, the study of walkable cities has become one of the key points of urban sustainable design. Creating a walkable city is an effective way to build a low-carbon and healthy city. With the development of cities, walkability concepts and theories are constantly being given new life, and research methods and design strategies continue to be updated. A city’s walkability and walkability index have become current research hotspots. Based on prior research on walkability and related urban policies, this study selects Coomera Town on the Gold Coast of Queensland, Australia, as the research area because of Coomera Town policy regulations and environmental requirements. This study utilizes traditional qualitative and quantitative research methods, machine mining technology, and the deep learning big data analysis technology to conduct thematic design research in a real place. Its combines walkability evaluation with walkability design to construct a walkable city in a targeted manner. This provides a reference for related city design in the future.

scholarly journals The laboratory test rig with miniature jet engine to research aviation fuels combustion process

2015 ◽  
Vol 36 (1) ◽  
pp. 79-90 ◽  
Author(s):  
Bartosz Gawron ◽  
Tomasz Białecki
Keyword(s):  
Research And Development ◽  
Laboratory Test ◽  
Air Force ◽  
Combustion Process ◽  
Jet Engines ◽  
Test Rig ◽  
Jet Engine ◽  
Measurement Results ◽  
Institute Of Technology ◽  
Main Components

Abstract This article presents laboratory test rig with a miniature turbojet engine (MiniJETRig – Miniature Jet Engine Test Rig), that was built in the Air Force Institute of Technology. The test rig has been developed for research and development works aimed at modelling and investigating processes and phenomena occurring in full scale jet engines. In the article construction of a test rig is described, with a brief discussion on the functionality of each of its main components. Additionally examples of measurement results obtained during the realization of the initial tests have been included, presenting the capabilities of the test rig.

Capabilities of the FAM-C method to diagnose the accessory gearboxes and transmission -train assemblies of the MI-24 helicopters

2012 ◽  
Vol 30 (1) ◽  
pp. 199-220
Author(s):  
Sławomir Augustyn ◽  
Andrzej Gębura
Keyword(s):  
Air Force ◽  
Instantaneous Frequency ◽  
Rotational Speed ◽  
Diagnostic Method ◽  
Transmission System ◽  
Structural Components ◽  
Mechanical Measurements ◽  
Institute Of Technology ◽  
Non Destructive

The study has been intended to present some selected service-imposed issues with the transmission system of the Mi-24 combat helicopter. An attempt has been made to present predictions about possible threats/hazards to the transmission system of this helicopter. The forecast has been based on the FAM-C analysis of changes in instantaneous frequency against time and, to some extent, on mechanical measurements of disassembled structural components/subassemblies. The greatest emphasis has been laid on capabilities to identify and diagnose locations in structural components of the Mi-24 helicopter (where many and various hazards may arise) using the non-destructive diagnostic method FAM-C developed at ITWL (Air Force Institute of Technology). The method has been based on the tracking of parameters of modulation of airborne alternator produced frequencies. The testing requires no extra sensors, since the built-in airborne AC, DC, and tachogenerators themselves are the diagnostic transducers. While taking FAM-C measurements, the transmission system experiences no extra loads or rotational-speed distortions.

Investigations on corrosion of aircrafts in the aspect of prolonged service life and operation driven by their technical condition

2012 ◽  
Vol 30 (1) ◽  
pp. 59-72 ◽  
Author(s):  
Piotr Barszcz
Keyword(s):  
Service Life ◽  
Air Force ◽  
Atmospheric Corrosion ◽  
Protective Coatings ◽  
Technical Condition ◽  
Structural Components ◽  
Institute Of Technology ◽  
Corrosion Investigation ◽  
Prolonged Service ◽  
Research Studies

Research studies that are conducted by both the Air Force Institute of Technology (AFIT) and other domestic and foreign organizations indicate that investigations of corrosion phenomena present a very important factor with respect to prolongation of technical resources and operation of aircraft driven by their actual technical condition. The investigation of the corrosion degree and deterioration of protective coatings must be carried out in a systemic manner with thorough analysis of information that bring together the aircraft operation and the processes of corrosion and deterioration of protective coatings. The investigation must comprise measurements of the atmospheric corrosion in order to determine corrosive aggressiveness of the atmosphere and establish frequency and scope of corrosion inspection. Only the analysis of gathered information with its characteristics may guarantee safe operation of structural components of aircrafts according to their actual technical condition. This paper outlines the approach to corrosion investigation that is in place in AFIT.

Od kultury popularnej do geopolityki popularnej

1970 ◽  
Vol 22 (297) ◽  
pp. 53-66
Author(s):  
Jarosław Macała
Keyword(s):  
Popular Culture ◽  
Mass Media ◽  
Research Methods ◽  
Research Area ◽  
Stages Of Development ◽  
Starting Point ◽  
The World ◽  
Cultural Order ◽  
Popular Geopolitics

A large portion of geopolitical research of the last decades, especially geopolitical criticism, undertakes the concept of the importance of culture, value and identity in explaining the relation between the space and politics, which was an aspect underappreciated by classical and neoclassical geopolitics. It might be assumed that the currently growing role of popculture and mass-media in our lives lead to the establishment of a kind of a “cultural order”, a particular filter that decides on the perception of the world and, consequently, geopolitics. This article relates to this issue as it deals with the meaning of popular culture in contemporary geopolitical research, mostly accentuated by popular geopolitics. This review briefly analyses what popular geopolitics is, how to sketch its research area, stages of development, applied definitions and research methods. The starting point is the assumption that the hegemonic structure of geographical/geopolitical thinking that the elites are trying to impose on the society by using popcultural artifacts may, in fact, be reconstructed thanks to popular geopolitics studies. It shows the scale and reach of resistance towards such imaginations as displayed by the non-elites, who also reach for symbols, texts and images from popular culture. Such circumstances allow to observe either legitimizing or debunking a particular view of the world and geopolitics.

A comparison of information behavior studies in United States and India: Number of publications, authorship, journals, theories, research populations, and methods

2022 ◽  
pp. 096100062110696
Author(s):  
Vinit Kumar ◽  
Brady Lund
Keyword(s):  
United States ◽  
Research Methods ◽  
Information Seeking ◽  
Information Science ◽  
Information Behavior ◽  
Relevant Information ◽  
The United States ◽  
Research Area ◽  
Quantitative Research Methods ◽  
Research Populations

This study compares attributes (authors, journals, populations, theories, methods) of information seeking behavior studies based in the United States and India, based on a search of published articles from 2011 to 2020 in relevant information science databases. The findings indicate major differences in information behavior research among the two countries. Information behavior research in the United States tends to focus more on health and medicine-related research populations, employ greater use of information behavior theories, and use a variety of quantitative and qualitative research methods (as well as mixed methods). Information behavior research in India tends to focus more on general populations, use less theory, and rely heavily on quantitative research methods—particularly questionnaires (88% of studies). These findings suggest a healthy and intellectually-diverse information behavior research area in the United States and ample room for growth of the research area within India.

Integration of a Turbine Cascade Facility Into an Undergraduate Thermo-Propulsion Sequence

2013 ◽  
Author(s):  
Kurt P. Rouser ◽  
Caitlin R. Thorn ◽  
Aaron R. Byerley ◽  
Charles F. Wisniewski ◽  
Scott R. Nowlin ◽  
...  
Keyword(s):  
Wind Tunnel ◽  
Gas Turbine ◽  
Air Force ◽  
Research Laboratory ◽  
Closed Loop ◽  
Turbine Cascade ◽  
Engineering Majors ◽  
Turbine Engine ◽  
Aeronautical Engineering ◽  
Air Force Research Laboratory

The Department of Aeronautics at the United States Air Force Academy utilizes a closed-loop, two-dimensional turbine cascade wind tunnel to reinforce a learning-focused undergraduate thermo-propulsion sequence. While previous work presented in the literature outlined the Academy thermo-propulsion sequence and the contextual framework for instruction, this current paper addresses how the Academy turbine cascade facility is integrated into the aeronautical engineering course sequence. Cadets who concentrate in propulsion are to some extent prepared for each successive course through their contact with the cascade, and ultimately they graduate with an exposure to experimental research that enhances their grasp of gas turbine engine fundamentals. Initially, the cascade is used to reinforce airfoil theory to all cadets in the Fundamentals of Aeronautics course. Aeronautical engineering majors take this course during the first semester of their sophomore year. The next semester all aeronautical engineering majors take Introduction to Aero-thermodynamics. In this course, the closed-loop aspect of the cascade facility is used to reinforce concepts of work addition to the flow. Heat transfer is also discussed, using the heat exchanger that regulates test section temperature. Exposure to the cascade also prepares cadets for the ensuing Introduction to Propulsion and Aeronautics Laboratory courses, taken in the junior and senior year, respectively. In the propulsion course, cadets connect thermodynamic principles to component analysis. In the laboratory course, cadets work in pairs on propulsion projects sponsored by the Air Force Research Laboratory, including projects in the cascade wind tunnel. Individual cadets are selected from the cascade research teams for summer internships, working at an Air Force Research Laboratory turbine cascade tunnel. Ultimately, cadet experiences with the Academy turbine cascade help lay the foundation for a two-part senior propulsion capstone sequence in which cadets design a gas turbine engine starting with the overall cycle selection leading to component-level design. The turbine cascade also serves to integrate propulsion principles and fluid mechanics through a senior elective Computational Fluid Dynamics course. In this course, cadets may select a computational project related to the cascade. Cadets who complete the thermo-propulsion sequence graduate with a thorough understanding of turbine engine fundamentals from both conceptual and applied perspectives. Their exposure to the cascade facility is an important part of the process. An assessment of cadet learning is presented to validate the effectiveness of this integrated research-classroom approach.

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