Download or read book Unsettled Technology Domains in Aerospace Additive Manufacturing Concerning Safety Airworthiness and Certification written by Jody Muelaner and published by . This book was released on 2019-12-23 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Unsettled Technology Domains in Aerospace Additive Manufacturing Concerning Safety Airworthiness and Certification written by Jody Muelaner and published by SAE International. This book was released on 2019-12-23 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: Additive manufacturing (AM) is currently being used to produce many certified aerospace components. However, significant advantages of AM are not exploited due to unresolved issues associated with process control, feedstock materials, surface finish, inspection, and cost. Components subject to fatigue must undergo surface finish improvements to enable inspection. This adds cost and limits the use of topology optimization. Continued development of process models is also required to enable optimization and understand the potential for defects in thin-walled and slender sections. Costs are high for powder-fed processes due to material costs, machine costs, and low deposition rates. Costs for wire-fed processes are high due to the extensive postprocess machining required. In addition, these processes are limited to low-complexity features. Incremental improvements in all of these areas are being made, but a step change could potentially be achieved by hybrid processes, which use wire feedstock to deposit the bulk of the part and powder for fine detail. NOTE: SAE EDGE™ Research Reports are intended to identify and illuminate key issues in emerging, but still unsettled, technologies of interest to the mobility industry. The goal of SAE EDGE™ Research Reports is to stimulate discussion and work in the hope of promoting and speeding resolution of identified issues. SAE EDGE™ Research Reports are not intended to resolve the issues they identify or close any topic to further scrutiny. Click here to access the full SAE EDGETM Research Report portfolio. https://doi.org/10.4271/EPR2019008

Download or read book Improving the Continued Airworthiness of Civil Aircraft written by National Research Council and published by National Academies Press. This book was released on 1998-10-11 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: As part of the national effort to improve aviation safety, the Federal Aviation Administration (FAA) chartered the National Research Council to examine and recommend improvements in the aircraft certification process currently used by the FAA, manufacturers, and operators.

Download or read book Unsettled Topics Concerning Airworthiness Cyber Security Regulation written by Aharon David and published by Sae Edge Research Report. This book was released on 2020-08-31 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: The certification process of the Boeing 787, starting in 2005, was a watershed for airworthiness regulation. The "Dreamliner," the first true "flying data center," could no longer be certified for airworthiness ignoring "sabotage," like the classic safety regulation for commercial passenger aircraft - as its extensive application of data networks, including enhanced external digital communication, forced the Federal Aviation Administration (FAA), for the first time, to set "Special Conditions" for cyber-security. In the 15 years that followed, airworthiness regulation followed suit, and all key rule-making, regulation-making, and standard-making organizations weighed in to establish a new airworthiness cyber-security superset of legislation, regulation, and standardization. The resulting International Civil Aviation Organization (ICAO) resolutions, U.S. and European Union (EU) legislation, FAA and European Aviation Safety Agency (EASA) regulation and the DO-326/ED-202 set of standards are about to become the new standards for legislation, regulation, and best practices as soon as 2020, and in fact - some of them are already in effect. This emerging superset of documents is now carefully studied by all relevant actors - including industry, regulators, and academia - as the aviation ecosystem moves forward with DO-326/ED-202-set training, gap-analysis, and even with certification itself. This report suggests a deeper analysis of these sets of regulatory documents and their effects on the aviation sector as they gradually become the law-of-the-land, starting with their expected effects on the aviation ecosystem, the issues they pose to supply chains, and the challenges they present to the airworthiness certification process itself. Then, this report examines the major DO-326/ED-202-set gaps, inherent dilemmas and methodological uncertainties. For each such unsettled domain, six aspects are reviewed. Finally, practical solution-seeking processes are proposed, and some specific potential frameworks and solutions are pointed out whenever applicable. It is the intention of this report that these insights and observations would assist regulators, applicants, and standard-makers throughout the early 2020s with accommodating this new regulation and start adjusting it to emerging realities.

Download or read book Design for Additive Manufacturing written by Dhruv Bhate and published by SAE International. This book was released on 2018-07-20 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the coming decades, the growth in AM will likely be driven by production parts that leverage this increase in design freedom to manufacture parts of higher performance and improved material utilization. Contrary to popular opinion, however, AM processes do have their constraints and limitations - not everything can be manufactured with AM, and even when it is feasible, not everything should. Design for Additive Manufacturing: Concepts and Considerations for the Aerospace Industry, edited by Dr. Dhruv Bhate, is a collection of ten seminal SAE International technical papers, which cover AM from the perspective of the appropriateness (should) and feasibility (can) of using AM for manufacturing of parts and tooling. Although AM technologies have been around for three decades, many in the industry believe that we are merely at the beginning of the revolution in the design-driven aspects of this technology. Indeed, half the papers in this selection were published only in the past two years, and all but one in the past decade. When it comes to design for AM, it is a safe bet that the best is yet to be.

Download or read book Additive Manufacturing for the Aerospace Industry written by Francis H. Froes and published by Elsevier. This book was released on 2019-02-15 with total page 483 pages. Available in PDF, EPUB and Kindle. Book excerpt: Additive Manufacturing for the Aerospace Industry explores the design, processing, metallurgy and applications of additive manufacturing (AM) within the aerospace industry. The book's editors have assembled an international team of experts who discuss recent developments and the future prospects of additive manufacturing. The work includes a review of the advantages of AM over conventionally subtractive fabrication, including cost considerations. Microstructures and mechanical properties are also presented, along with examples of components fabricated by AM. Readers will find information on a broad range of materials and processes used in additive manufacturing. It is ideal reading for those in academia, government labs, component fabricators, and research institutes, but will also appeal to all sectors of the aerospace industry. - Provides information on a broad range of materials and processes used in additive manufacturing - Presents recent developments in the design and applications of additive manufacturing specific to the aerospace industry - Covers a wide array of materials for use in the additive manufacturing of aerospace parts - Discusses current standards in the area of aerospace AM parts

Download or read book Towards Certification of Additively Manufactured Safety critical Parts for the Department of the Air Force written by Jeremy D. Wimer and published by . This book was released on 2020 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Additive manufacturing (AM) is a disruptive technology that holds many benefits for the Department of Defense throughout product lifecycles including supporting the "digital century-series" concept of aircraft acquisition. The variability of parts created by AM is challenging, and the Department of the Air Force lags behind other departments in its adoption of AM. The main barrier to taking advantage of these benefits is the lack of confidence in certifying AM parts for safety-critical flight applications. The airworthiness process relies on process controls, testing, and analysis for risk mitigation and flight certification. The Air Force's current path towards certification has been to closely define and control AM process parameters, lock down that process, and conduct thorough non-destructive testing on individual parts. A better path to certification is to mitigate risks through informed awareness based on sufficient analysis of data created during each part's build process based on the part's criticality. This paper offers a Predict-Built-Test-Validate model as a means to create and analyze a "digital passport" allowing for certification of parts and informing airworthiness. In-situ data collection, closed-loop control of build process parameters, and machine learning algorithms for defect detection all offer promising methods of collecting data during a build, controlling the process, and ensuring enough information is known about the part to support certification. This paper argues that the Department of the Air Force should not seek to certify individual AM processes or machines, but instead define technical data package requirements and certify processes of collecting and analyzing data whereby the properties of the AM part can be matched with the validated model ensuring it will meet designed performance requirements and be safe for flight."--Abstract.

Download or read book Improving Aircraft Safety written by Committee on FAA Airworthiness Certification Procedures and published by . This book was released on 1980-01-15 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Unsettled Topics on Nondestructive Testing of Additively Manufactured Parts in the Mobility Industry written by Kevin Slattery and published by Sae Edge Research Report. This book was released on 2020-09-29 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Additive manufacturing (AM) technology, also known as 3D printing, has transitioned from concepts and prototypes to part-for-part substitution and the creation of unique AM-specific part geometries. These applications are increasingly present in demanding, mission-critical fields such as medicine and aerospace, which require materials with certain thermal, stiffness, corrosion, and static loading properties. To advance in these arenas, metallic, ceramic, and polymer composite AM parts need to be free from discontinuities. The manufacturing processes have to be stable, robust, and repeatable. And the nondestructive testing (NDT) technology and inspection methods will need to be sufficiently capable and reliable to ensure that discontinuities will be detected to prevent the components from being accepted for use. As the second installment of a six-part series of SAE EDGE(TM) Research Reports on AM, this one discusses the need, challenges, technologies, and opportunities for NDT in AM. NOTE: SAE EDGE(TM) Research Reports are intended to identify and illuminate key issues in emerging, but still unsettled, technologies of interest to the mobility industry. The goal of SAE EDGE(TM) Research Reports is to stimulate discussion and work in the hope of promoting and speeding resolution of identified issues. SAE EDGE(TM) Research Reports are not intended to resolve the challenges they identify or close any topic to further scrutiny.

Download or read book Additive Manufacturing Applications and Implementation in Aerospace written by Brendon W. Chiu and published by . This book was released on 2020 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many aerospace companies are turning to additive manufacturing solutions to stream-line current production processes and open opportunities for on-demand producibility. While many OEMs are drawn to the appeal of the benefits that additive manufacturing brings, they are beginning to understand the difficulties in what it takes to realize those benefits. This paper analyzes additive manufacturing from an industry perspective down to a company perspective to develop a deeper understanding of the practical use cases as well as the various challenges a company faces should they choose to enter this market. This study begins with market research on the additive manufacturing and aerospace industry before honing in on a several use-case parts from rotary aircraft. Selection criterion were created and applied to analyze the value that additive manufacturing would bring in comparison to that of conventional methods, ultimately determining its feasibility for additive manufacturing. This study applied the selection criterion to various parts of differing functions among the aircraft, resulting in a group of candidate parts. An evaluation method was created and applied to provide an objective assessment on the candidate parts. Initial insights show that additive manufacturing favor casted parts with features that can be optimized to increase performance and reduce costs and weight. In addition, aerospace has the best product mix of low volume parts that are advantageous to the economies of scale for additive manufacturing. Additionally, this study analyzes a company’s organization and previous additive manufacturing efforts to propose ways to approach future development. Venturing through the various road maps that lead to the final goal of certification and addressing organizational barriers generate momentum for continuous development. These road maps, selection criterion, and evaluation method can be applied through many applications within the general aerospace industry.

Download or read book Design for Additive Manufacturing written by Dhruv Bhate and published by . This book was released on with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Materials Structures and Manufacturing for Aircraft written by Melih Cemal Kuşhan and published by Springer. This book was released on 2022-04-26 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a comprehensive look at materials science topics in aerospace, air vehicle structures and manufacturing methods for aerospace products, examining recent trends and new technological developments. Coverage includes additive manufacturing, advanced material removal operations, novel wing systems, design of landing gear, eco-friendly aero-engines, and light alloys, advanced polymers, composite materials and smart materials for structural components. Case studies and coverage of practical applications demonstrate how these technologies are being successfully deployed. Materials, Structures & Manufacturing for Aircraft will appeal to a broad readership in the aviation community, including students, engineers, scientists, and researchers, as a reference source for material science and modern production techniques.

Download or read book Certification Challenges for Emerging Technologies in Aviation written by Atinuke Adebisi Oyeniya and published by . This book was released on 2018 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last decade the aerospace industry has seen a shift in traditional architectures of an aircraft. The desire for aircraft to be lighter, more efficient, quieter, faster, and cheaper has driven trends across the industry. These trends look for ways to accomplish what many other industries such as automotive have done which is a complete transformation of the "normal." The shift has created an advanced architecture for aircraft and therefore requires a new view on certification. The traditional approach for certification is pretty straightforward since majority of aircraft have been the same over several years with minor changes in sub level aircraft systems. Aircraft manufacturers in combination with suppliers develop concepts for new or improved aircraft, requirements are outlined and implemented based on aviation authority regulations, and eventually the aircraft receives a certificate declaring the safety of the aircraft design and production. In fairness, the traditional standard approach to aircraft certification has worked. Aircraft are safer than ever and data shows a sharp decline in aviation accidents over the years. However, with changes in technology what use to be the "normal" architecture is changing significantly and the desire for the industry to be more agile both play a role in the need to view certification slightly different. The main objective of certification has been, is, and will always be safety. This thesis proposes a framework on how to approach certification of new technologies. Perhaps the two most important elements in the framework are the proposal of a threshold utilizing the technology infusion effort equation to gage the significance of a change in architecture and the proactive safety analysis utilizing a new kind of technique called STPA. The framework is developed based on an in-depth outline of the traditional certification process and a review of the historical development of safety regulations. Two parts of the proposed framework are then applied and analyzed based on the more electric aircraft concept.

Download or read book Commercial Aviation Safety Sixth Edition written by Stephen K. Cusick and published by McGraw Hill Professional. This book was released on 2017-05-12 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt: Up-To-Date Coverage of Every Aspect of Commercial Aviation Safety Completely revised edition to fully align with current U.S. and international regulations, this hands-on resource clearly explains the principles and practices of commercial aviation safety—from accident investigations to Safety Management Systems. Commercial Aviation Safety, Sixth Edition, delivers authoritative information on today's risk management on the ground and in the air. The book offers the latest procedures, flight technologies, and accident statistics. You will learn about new and evolving challenges, such as lasers, drones (unmanned aerial vehicles), cyberattacks, aircraft icing, and software bugs. Chapter outlines, review questions, and real-world incident examples are featured throughout. Coverage includes: • ICAO, FAA, EPA, TSA, and OSHA regulations • NTSB and ICAO accident investigation processes • Recording and reporting of safety data • U.S. and international aviation accident statistics • Accident causation models • The Human Factors Analysis and Classification System (HFACS) • Crew Resource Management (CRM) and Threat and Error Management (TEM) • Aviation Safety Reporting System (ASRS) and Flight Data Monitoring (FDM) • Aircraft and air traffic control technologies and safety systems • Airport safety, including runway incursions • Aviation security, including the threats of intentional harm and terrorism • International and U.S. Aviation Safety Management Systems

Download or read book Aviation Safety and Pilot Control written by National Research Council and published by National Academies Press. This book was released on 1997-03-28 with total page 221 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adverse aircraft-pilot coupling (APC) events include a broad set of undesirable and sometimes hazardous phenomena that originate in anomalous interactions between pilots and aircraft. As civil and military aircraft technologies advance, interactions between pilots and aircraft are becoming more complex. Recent accidents and other incidents have been attributed to adverse APC in military aircraft. In addition, APC has been implicated in some civilian incidents. This book evaluates the current state of knowledge about adverse APC and processes that may be used to eliminate it from military and commercial aircraft. It was written for technical, government, and administrative decisionmakers and their technical and administrative support staffs; key technical managers in the aircraft manufacturing and operational industries; stability and control engineers; aircraft flight control system designers; research specialists in flight control, flying qualities, human factors; and technically knowledgeable lay readers.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1986 with total page 1108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Glare written by Ad Vlot and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Glare is the name given to a new material for aircraft structures developed at Delft University in the Netherlands. It consists of thin aluminium layers bonded together by adhesive containing embedded fibres and is very resistant to fatigue. This book gives the inside story of how the development of Glare took place. It took more than two decades from the first tests in Delft to the major breakthrough following the decision of Airbus to apply the material on the A380 super-jumbo. This success was achieved by a small group of people inspired by professor Boud Vogelesang, people who kept believing in the material and fought against all obstacles during the years. This book tells the story of the ups and downs and the final success of their efforts.