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Service Life Investigation For Aging Aircraft
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Book Synopsis Service Life Investigation for Aging Aircraft by :
Download or read book Service Life Investigation for Aging Aircraft written by and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report results from a contract tasking TsAGI as follows: The contractor will report on investigation into structural issues effecting aging aircraft. One of the most important problems in aviation is the one of ensuring safe operation of aging aircraft. Up to date many Russian aircraft types have worked out their design service lives. It is impossible to replace all of old aircraft types by newer ones in the nearest future, so it seems obligatory to prolong service lives and durability of aging aircraft beyond the design goals. This requires testing the long-operated aircraft for fatigue resistance, ensuring damage tolerance of the structures with widespread fatigue damage (WFD), studying the degradation of crack resistance and fatigue strength after long-term operation, and ensuring safe operation of corrosion-damaged structures. This paper outlines the experience of dealing with the above problems in Russia.
Book Synopsis Challenges and Issues with the Further Aging of U.S. Air Force Aircraft by : J. R. Gebman
Download or read book Challenges and Issues with the Further Aging of U.S. Air Force Aircraft written by J. R. Gebman and published by Rand Corporation. This book was released on 2009 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the next 20 years, the further aging of already-old aircraft will introduce challenges and issues for aircraft operators. The technical challenges relate to structures, propulsion, and systems. The institutional challenges include limitations on independent verification of fleet status and future condition and on information needed for engineering analyses including risk assessment, and an overall scarcity of resources.
Book Synopsis Proceedings of the International Conference on Aging Airplanes, June 1-3, 1988 by :
Download or read book Proceedings of the International Conference on Aging Airplanes, June 1-3, 1988 written by and published by . This book was released on 1988 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structural Integrity of Aging Airplanes by : Satya N. Atluri
Download or read book Structural Integrity of Aging Airplanes written by Satya N. Atluri and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: The emergence of civil aviation as a means of mass transportation is primarily due to the large scale construction of jet airplanes in the past 30 years or so. A large number of these jet airplanes is currently operating at or beyond their designed fatigue lives. Thus, the structural integrity of these aging airplanes has become an issue of major concern to all nations of the world. To bring the needed technical and research focus on the issues involved in the life-enhancement and safety-assurance of aging airplanes, the Federal Aviation Administration sponsored a symposium in Atlanta, GA, USA, during 20-22 March 1990. This symposium, under the title "International Symposium on Structural Integrity of Aging Airplanes· was organized jointly be the Georgia Institute of Technology (Center for Computational Mechanics) and the Transportation Systems Center (Cambridge, MA) of the U.S. Department of Transportation. Industrial and academic experts from several countries in North America, Europe and Asia, were invited to discuss their experiences and proposed solutions. This monograph contains the original papers that represent the expanded and edited versions of the talks presented at this symposium. This book aims to bring the collective experience, from across the world, with problems related to the structural integrity of aging airplanes to the attention of the professional and research community at large - in the hope that it may stimulate further fruitful research on this important topic of global concern.
Author :United States. Congress. House. Committee on Science and Technology. Subcommittee on Transportation, Aviation, and Materials Publisher : ISBN 13 : Total Pages :80 pages Book Rating :4.3/5 (121 download)
Book Synopsis Geriatric Aircraft by : United States. Congress. House. Committee on Science and Technology. Subcommittee on Transportation, Aviation, and Materials
Download or read book Geriatric Aircraft written by United States. Congress. House. Committee on Science and Technology. Subcommittee on Transportation, Aviation, and Materials and published by . This book was released on 1986 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aging of U.S. Air Force Aircraft by :
Download or read book Aging of U.S. Air Force Aircraft written by and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Air Force requested the National Research Council to identify research and development (R & D) needs and opportunities to support the continued operation of their aging aircraft. Specifically, this study focuses on aging aircraft structures and materials and has the major objectives of 1. developing an overall strategy that addresses the Air Force aging aircraft needs 2. recommending and prioritizing specific technology opportunities in the areas of fatigue, corrosion fatigue, and stress corrosion cracking corrosion, prevention and mitigation, nondestructive inspection maintenance and repair, failure analysis and life prediction methodologies. The approach that the committee took to accomplish this study was to conduct working sessions to identify current aging aircraft problems and technology needs; review ongoing and planned aging aircraft R & D efforts by the Air Force; and review related research at other government agencies, within industry and in the academic research community.
Book Synopsis Verification of Life Prediction Methods for Aging Aircraft Structures by :
Download or read book Verification of Life Prediction Methods for Aging Aircraft Structures written by and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this research is to verify methodologies for AFGROW developed in conjunction with Delivery Order 0006, Contract F33615-94-D-3212. The methodologies, which pertain to aging aircraft, include bonded repair of metallic structures, widespread fatigue damage, stress level effects on crack growth and load sequence effects on crack growth. AFGROW is a fatigue crack growth prediction code developed by Analytical Services and Materials, Inc. and the Air Force. This research is necessitated by the growing need to keep current aircraft in service well beyond their normal design lives. When cracks are discovered in inspection the components must be either repaired or replaced. In most instances it is not economically feasible to replace entire components. Therefore, repairing the damaged areas is both preferred and critical. Additionally, repairs must be made quickly so the aircraft may be returned to service as soon as possible. Also, it is important to be able to model and predict fatigue crack growth behavior (exposed to various spectrum loading situations) that were not accounted for when determining a component's design life.
Author :United States. Congress. House. Committee on Public Works and Transportation. Subcommittee on Aviation Publisher : ISBN 13 : Total Pages :104 pages Book Rating :4.3/5 (91 download)
Book Synopsis Federal Oversight of the Maintenance and Repair of Aging Aircraft by : United States. Congress. House. Committee on Public Works and Transportation. Subcommittee on Aviation
Download or read book Federal Oversight of the Maintenance and Repair of Aging Aircraft written by United States. Congress. House. Committee on Public Works and Transportation. Subcommittee on Aviation and published by . This book was released on 1992 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aging of U.S. Air Force Aircraft by : National Research Council
Download or read book Aging of U.S. Air Force Aircraft written by National Research Council and published by National Academies Press. This book was released on 1997-09-30 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many of the aircraft that form the backbone of the U.S. Air Force operational fleet are 25 years old or older. A few of these will be replaced with new aircraft, but many are expected to remain in service an additional 25 years or more. This book provides a strategy to address the technical needs and priorities associated with the Air Force's aging airframe structures. It includes a detailed summary of the structural status of the aging force, identification of key technical issues, recommendations for near-term engineering and management actions, and prioritized near-term and long-term research recommendations.
Download or read book Aging Aircraft written by Raymond Pyles and published by Rand Corporation. This book was released on 2003 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: To help improve the Air Force's ability to foresee the implications for safety, aircraft availability, and cost of its plans to retain aircraft fleets for service lives that may be as long as 80 years, and to identify actions that will mitigate or avoid some of the more severe consequences, this study measures how the USAF aircraft fleets' ages relate to maintenance and modification workloads and material consumption.
Author :United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Aviation Publisher : ISBN 13 : Total Pages :104 pages Book Rating :4.0/5 ( download)
Book Synopsis Aging Aircraft by : United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Aviation
Download or read book Aging Aircraft written by United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Aviation and published by . This book was released on 1989 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aging Avionics in Military Aircraft by : National Research Council
Download or read book Aging Avionics in Military Aircraft written by National Research Council and published by National Academies Press. This book was released on 2001-06-07 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extending the life of an airframe has proven challenging and costly. Extending the life of an avionics system, however, is one of the most critical and difficult aspects of extending total aircraft system lifetimes. Critical components go out of production or become obsolete, and many former suppliers of military-grade components have gone out of business. From 1986 to 1996, for example, the percentage of discontinued military/aerospace electronic devices nearly doubledâ€"from 7.5 percent to 13.5 percent. In addition, legacy avionics systems, which were designed to meet requirements of the past, generally lack the full capability to perform new missions, meet new threats, or perform well in the new information-intensive battlefield environments. As the legacy aircraft fleet ages, avionics systems will become more and more difficult to support and maintain. Whereas the military once provided a large and profitable market for the electronics industry, the military electronics market today constitutes less than 1 percent of the commercial market. As a result, the military must increasingly rely on commercial off-the-shelf (COTS) technologies for its avionics hardware and software. Although COTS items are generally less expensive than comparable items designed especially to meet military specifications, the technology-refresh cycle for COTS is typically 18 months or less, which exacerbates the obsolescence problem for aircraft whose lifetimes are measured in decades. The short refresh cycle is driven mostly by the tremendous advances in computer systems, which comprise an increasing percentage of avionics content. In response to a request by the Assistant Secretary of the Air Force for Acquisition, the National Research Council convened the Committee on Aging Avionics in Military Aircraft, under the auspices of the Air Force Science and Technology Board, to conduct this study. This report summarizes the following: Gather information from DoD, other government agencies, and industrial sources on the status of, and issues surrounding, the aging avionics problem. This should include briefings from and discussions with senior industry executives and military acquisition and support personnel. A part of this activity should include a review of Air Force Materiel Command's study on diminishing manufacturing sources to recommend ways to mitigate avionics obsolescence. Provide recommendations for new approaches and innovative techniques to improve management of aging avionics, with the goal of helping the Air Force to enhance supportability and replacement of aging and obsolescing avionics and minimize associated life cycle costs. Comment on the division of technology responsibility between DoD and industry.
Book Synopsis The Maintenance Costs of Aging Aircraft by : Matthew C. Dixon
Download or read book The Maintenance Costs of Aging Aircraft written by Matthew C. Dixon and published by Rand Corporation. This book was released on 2006 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Air Force is grappling with the challenge of aging fleets and the optimal time to replace them. This monograph examines commercial aviation data to draw inferences about aging aircraft that may be relevant to the Air Force. It focuses on "aging effects"-i.e., how aircraft maintenance costs change as aircraft grow older. Although commercial aircraft clearly differ from military aircraft, the aging-effect estimates might help the Air Force to project changing maintenance costs over time.
Author :Committee on New Materials for Advanced Civil Aircraft Publisher :National Academies Press ISBN 13 :0309588782 Total Pages :99 pages Book Rating :4.3/5 (95 download)
Book Synopsis New Materials for Next-Generation Commercial Transports by : Committee on New Materials for Advanced Civil Aircraft
Download or read book New Materials for Next-Generation Commercial Transports written by Committee on New Materials for Advanced Civil Aircraft and published by National Academies Press. This book was released on 1996-03-29 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: The major objective of this book was to identify issues related to the introduction of new materials and the effects that advanced materials will have on the durability and technical risk of future civil aircraft throughout their service life. The committee investigated the new materials and structural concepts that are likely to be incorporated into next generation commercial aircraft and the factors influencing application decisions. Based on these predictions, the committee attempted to identify the design, characterization, monitoring, and maintenance issues that are critical for the introduction of advanced materials and structural concepts into future aircraft.
Book Synopsis A service life extension (SLEP) approach to operating aging aircraft beyond their original design lives by : Alan Carter Pentz
Download or read book A service life extension (SLEP) approach to operating aging aircraft beyond their original design lives written by Alan Carter Pentz and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Report on Sustaining Air Force Aging Aircraft Into the 21st Century by : United States. USAF Scientific Advisory Board
Download or read book Report on Sustaining Air Force Aging Aircraft Into the 21st Century written by United States. USAF Scientific Advisory Board and published by . This book was released on 2011 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: "As many of its fleets of legacy aircraft types are kept in service well beyond their planned services lives (sometimes in age, sometimes in usage, sometimes both), the United States Air Force (USAF) faces numerous engineering and resource challenges for the continued, cost effective sustainment of those aging systems. This report details the recommendations made by the USAF Scientific Advisory Board's Sustaining Aging Aircraft (SAA) Study to best position the Air Force to meet those challenges. The SAA Study Panel visited a cross section of military and commercial aircraft maintenance organizations to assess sustainment practices and identify technologies that can extend system life and ease maintenance costs. The Study identified specific aircraft systems, in addition to structures and engines, that contribute to safety, availability, and effectiveness for aging aircraft; examined commercial practices in airlines, air freight services, and other industries, and evaluated how they might be applied to meet USAF needs; and identified technology needs and technology approaches that can be applied or developed to extend life or ease maintenance of these aircraft systems, while facilitating future adaptations and performance enhancements of the aircraft."--p. 211.
Book Synopsis Aging of U.S. Air Force Aircraft by : National Research Council
Download or read book Aging of U.S. Air Force Aircraft written by National Research Council and published by National Academies Press. This book was released on 1997-10-30 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many of the aircraft that form the backbone of the U.S. Air Force operational fleet are 25 years old or older. A few of these will be replaced with new aircraft, but many are expected to remain in service an additional 25 years or more. This book provides a strategy to address the technical needs and priorities associated with the Air Force's aging airframe structures. It includes a detailed summary of the structural status of the aging force, identification of key technical issues, recommendations for near-term engineering and management actions, and prioritized near-term and long-term research recommendations.
