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Author:
Publisher:
ISBN:
Category : Aeronautical instruments
Languages : en
Pages : 314
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Author: Enoch J. Durbin
Publisher: Elsevier
ISBN: 1483222314
Category : Technology & Engineering
Languages : en
Pages : 572
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Book Description
Flight Testing, Volume IV: Instrumentation Systems serves as a guide to flight test instrumentation systems for establishing flight test programs. This book provides aircraft flight testers with the information required to appreciate the capabilities and limitations of the instrumentation techniques, indicating some of the many alternatives possible in flight instrumentation. It considers the systems concept in planning flight test instrumentation and functional organization of the component parts of an instrumentation system, followed by a discussion of the components of a flight data acquisition and reduction system that are organized into functional categories. Within these categories, a comparison is made between the various data collection systems and data reducing systems. The similarities, advantages, and limitations of each type of system component and significance of the fundamental properties of each device are also noted in this volume. This compilation is written primarily for persons not well-trained in electronics with special emphasis toward promoting the systems point of view in considering the problems of measurement in flight.
Author: M. A. Perry
Publisher: Elsevier
ISBN: 1483156729
Category : Technology & Engineering
Languages : en
Pages : 305
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Book Description
Flight Test Instrumentation is a collection of papers presented at the Third International Symposium on Flight Test Instrumentation held in 1964 under the auspices of the Department of Flight of the College of Aeronautics in Cranfield, UK. The symposium provided a forum for discussing advances in flight test instrumentation and covered topics ranging from pre-detection recording in the megacycle range to some problems and uses of fuel flow measurements in supersonic aircraft. This volume is comprised of 14 chapters and begins by describing angle of attack and angle of sideslip measurements using fully de-iced non-movable differential pressure-sensing heads and low-range capacitive pressure transducers. The next chapter explores errors in stability derivative measurements that can occur due to shortcomings in instrumentation design, as well as the implications of such errors for the development of a modern supersonic aeroplane. The application of the vector plotting technique to flight flutter testing of the Hawker Siddeley Trident is then considered. Subsequent chapters focus on the use of high-accuracy instrumentation techniques for non-steady flight measurements; strain gauging for transient heating cases; and free-flight model techniques for aerodynamic research at supersonic and hypersonic speeds. This book will be a useful resource for students, practitioners, and officials of aeronautics.
Author:
Publisher:
ISBN:
Category : Aeronautical instruments
Languages : en
Pages : 354
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautical instruments
Languages : en
Pages : 314
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 998
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Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category : Astronautics
Languages : en
Pages : 206
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Author: Alejandro Sobron
Publisher: Linköping University Electronic Press
ISBN: 9176852202
Category :
Languages : en
Pages : 130
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Book Description
Downscaled physical models, also referred to as subscale models, have played an essential role in the investigation of the complex physics of flight until the recent disruption of numerical simulation. Despite the fact that improvements in computational methods are slowly pushing experimental techniques towards a secondary role as verification or calibration tools, real-world testing of physical prototypes still provides an unmatched confidence. Physical models are very effective at revealing issues that are sometimes not correctly identified in the virtual domain, and hence can be a valuable complement to other design tools. But traditional wind-tunnel testing cannot always meet all of the requirements of modern aeronautical research and development. It is nowadays too expensive to use these scarce facilities to explore different design iterations during the initial stages of aircraft development, or to experiment with new and immature technologies. Testing of free-flight subscale models, referred to as Subscale Flight Testing (SFT), could offer an affordable and low-risk alternative for complementing conventional techniques with both qualitative and quantitative information. The miniaturisation of mechatronic systems, the advances in rapid-prototyping techniques and power storage, as well as new manufacturing methods, currently enable the development of sophisticated test objects at scales that were impractical some decades ago. Moreover, the recent boom in the commercial drone industry has driven a quick development of specialised electronics and sensors, which offer nowadays surprising capabilities at competitive prices. These recent technological disruptions have significantly altered the cost-benefit function of SFT and it is necessary to re-evaluate its potential in the contemporary aircraft development context. This thesis aims to increase the comprehension and knowledge of the SFT method in order to define a practical framework for its use in aircraft design; focusing on low-cost, short-time solutions that don’t require more than a small organization and few resources. This objective is approached from a theoretical point of view by means of an analysis of the physical and practical limitations of the scaling laws; and from an empirical point of view by means of field experiments aimed at identifying practical needs for equipment, methods, and tools. A low-cost data acquisition system is developed and tested; a novel method for semi-automated flight testing in small airspaces is proposed; a set of tools for analysis and visualisation of flight data is presented; and it is also demonstrated that it is possible to explore and demonstrate new technology using SFT with a very limited amount of economic and human resources. All these, together with a theoretical review and contextualisation, contribute to increasing the comprehension and knowledge of the SFT method in general, and its potential applications in aircraft conceptual design in particular.
Author:
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ISBN:
Category : Artificial satellites
Languages : en
Pages : 296
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Book Description
Author:
Publisher:
ISBN:
Category : Astronautics
Languages : en
Pages : 296
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Book Description
Author:
Publisher:
ISBN:
Category : Astronautics
Languages : en
Pages : 348
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Book Description
