Search Results

Book

Understanding How Components Fail, 2nd Ed.

1999-12-01

Understanding How Components Failprovides expanded coverage of many important failure analysis concepts and analytical techniques needed in failure investigations. Basic principles and practices are clearly explained, with numerous examples featuring commonly used metals, parts, and service environments.

Book

Transformations: Selected Works of G.B. Olson on Materials, Microstrucutre, and Design

2017-01-01

ASM International and The Minerals, Metals and Materials Society (TMS) have collaborated to present a collection of the selected works of Dr. Greg B. Olson in honor of his 70th birthday in 2017. This collection highlights his influential contributions to the understanding of martensite transformations and the development and application of a systems design approach to materials. Part I: Martensite, with an Introduction by Sir Harry Bhadeshia, emphasizes Dr. Olson's work to develop a dislocation theory for martensite transformations, to improve the understanding of the statistical nature of martensite nucleation, and to expand use of quantitative microscopy to characterize phase transformations. Part II: Materials Design, with an Introduction by Dr. Charles Kuehmann, focuses on the application of a systems design approach to materials and the development of integrated computational design curriculum for undergraduate education.

Book

The Use of Electric Batteries for Civil Aircraft Applications

2018-12-10

The Use of Electric Batteries for Civil Aircraft Applications is a comprehensive and focused collection of SAE International technical papers, covering both the past and the present of the efforts to develop batteries that can be specifically installed in commercial aircraft. Recently, major commercial aircraft manufacturers started investigating the possibility of using Li-Ion batteries at roughly the same time that the military launched their first applications. As industry events unfolded, the FAA and committees from RTCA and SAE continued efforts to create meaningful standards for the design, testing, and certification of Li-Ion battery systems for commercial aviation. The first document issued was RTCA DO-311 on Mar. 13, 2008. As the industry continues to develop concepts and designs for the safe utilization of the new Li-Ion battery systems, many are already working on designs for all-electric aircraft, and small two-seat training aircraft are currently flying.

Book

The Paths of Soaring Flight

2004-01-01

This book is concerned with the sport of soaring, mainly with the mathematical basis of sailplane design and operation. It does not tell the beginner how to fly, but it will give an experienced pilot some background, with historical notes showing how ideas have evolved and could develop in the future. Some of the material is taken from OSTIV (Organisation Scientifique et Technique Internationale de Vol a Viole) publications and from Technical Soaring, neither of which is readily available to the general public. Extensive references are provided in each chapter.

Book

The History of Stainless Steel

2010-01-01

This book provides a fascinating glimpse into a vital material that we may take for granted today. Stainless steel, called “the miracle metal” and “the crowning achievement of metallurgy” by the prominent metallurgist Carl Zapffe, is a material marvel with an equally fascinating history of people, places, and technology. As stainless steel nears the 100th anniversary of its discovery, this book is a fitting perspective on a vital material of our modern life, and it is the first book that captures the unfolding excitement and innovations of stainless steel pioneers and entrepreneurs. Amply illustrated with photographs, the book also includes a timeline that lists more than 450 important facts and events related to stainless steels technology and applications.

Book

The Electrification of Civil Aircraft and the Evolution of Energy Storage

2017-08-28

Larger airframes drove the development of electrical systems, capable of quickly and reliably starting the new higher power engines. These soon gave rise to the need for engine-mounted electrical generators as the primary source of in-flight power for the electrical loads and onboard recharging of the aircraft battery system. Of all the backup power sources, batteries represent the most common means of storing energy for auxiliary or emergency power requirements. It is not unusual for a typical commercial airliner, such as a B-737 or A-320, to have dozens of batteries on board. Over time, multiple battery chemistries were put to the test and the industry is still working on the optimal option. The lithium-ion technology has been gaining acceptance, with some important aspects to be considered: the application type, basic safety requirements and the presence or absence of humans on the vehicle.

Book

The Design of Aircraft Landing Gear

2021-02-18

The aircraft landing gear and its associated systems represent a compelling design challenge: simultaneously a system, a structure, and a machine, it supports the aircraft on the ground, absorbs landing and braking energy, permits maneuvering, and retracts to minimize aircraft drag. Yet, as it is not required during flight, it also represents dead weight and significant effort must be made to minimize its total mass. The Design of Aircraft Landing Gear, written by R. Kyle Schmidt, PE (B.A.Sc. - Mechanical Engineering, M.Sc. - Safety and Aircraft Accident Investigation, Chairman of the SAE A-5 Committee on Aircraft Landing Gear), is designed to guide the reader through the key principles of landing system design and to provide additional references when available. Many problems which must be confronted have already been addressed by others in the past, but the information is not known or shared, leading to the observation that there are few new problems, but many new people.

Book

The Aerospace Supply Chain and Cyber Security - Challenges Ahead

2018-07-20

The Aerospace Supply Chain and Cyber Security - Challenges Ahead looks at the current state of commercial aviation and cyber security, how information technology and its attractiveness to cyber attacks is affecting it, and the way supply chains have become a vital part of the industry's cyber-security strategy. More than ever before, commercial aviation relies on information and communications technology. Some examples of this include the use of e-tickets by passengers, electronic flight bags by pilots, wireless web access in flight, not to mention the thousands of sensors throughout the aircraft constantly gathering and sharing data with the crew on the ground. The same way technology opens the doors for speed, efficiency and convenience, it also offers the unintended opportunity for malicious cyber attacks, with threat agents becoming bolder and choosing any possible apertures to breach security.

Book

System Innovation for Sustainability 2

2009-01-01

System Innovation for Sustainability 2 focuses on the movement towards sustainable personal mobility, using case studies analyzed from a system perspective to examine the changes required to increase sustainability. Three major problem areas are considered: carbon emissions and the growing contribution of mobility to the climate change crisis, congestion, and casualties. Each proposed strategy addresses one or more of these problem areas. The book identifies opportunities for governments, manufacturers, and consumers to intervene to promote sustainable mobility. It concludes with a reflection on problems, trends, and actions needed. Topics include: Meta-trends Mobility sector issues Socioeconomic trends Political considerations Sociocultural developments Environmental issues

Book

Supply Chain Vulnerabilities Impacting Commercial Aviation

2019-09-04

Written by Kirsten Koepsel, a lawyer and engineer whose work has focused on aviation cybersecurity, Supply Chain Vulnerabilities Impacting Commercial Aviation addresses the big question facing aircraft manufacturers today: keep the work in house or outsource it? The ongoing battle between cost cutting and supply-chain control is ever more visible as aircraft OEMs have full order books and tight delivery schedules. Since the 1980s, commercial aviation, like many other industries, looked for ways of more economically sourcing parts and services. The new partnerships between OEMs and suppliers at multiple levels, did make the industry nimbler and more flexible. Yet, it also introduced a higher level of instability, risks and vulnerabilities to the aviation ecosystem.

Book

Successful Prediction of Product Performance

2016-09-12

The ability to successfully predict industrial product performance during service life provides benefits for producers and users. This book addresses methods to improve product quality, reliability, and durability during the product life cycle, along with methods to avoid costs that can negatively impact profitability plans. The methods presented can be applied to reducing risk in the research and design processes and integration with manufacturing methods to successfully predict product performance. This approach incorporates components that are based on simulations in the laboratory. The results are combined with in-field testing to determine degradation parameters. These approaches result in improvements to product quality, performance, safety, profitability, and customer satisfaction.

Book

Studies into Additive Manufacturing for In-Space Manufacturing

2016-08-11

Additive manufacturing (AM) for space exploration has become a growing opportunity as long-range space missions evolve. In partnership with the National Space Grant Foundation and NASA, students from the University of Wisconsin-Milwaukee participated in the 2014-15 X-Hab Academic Innovation Challenge, with participants tasked with developing new AM solutions that would be recyclable with minimal loss in mechanical properties. The teams investigated materials, characterization, testing, modeling, and tool development, including the ability to employ reusable carbon-fiber tension ties. The tools developed show that it is possible to employ thermoplastic polymer materials fabricated using AM together with reusable and flexible high-performance carbon-fiber-based composite ties. The AM-printed part is completely recyclable. The carbon-fiber composite ties are repurposed into new structural configurations without loss in properties.

Book

Structural Health Monitoring: Current State and Future Trends

2018-11-20

Structural Health Management (SHM) is a key part of the Integrated Vehicle Health Management (IVHM) approach, whose main aim is to develop an integrated end-to-end system to monitor the overall health of a vehicle. Structural Health Monitoring: Current State and Future Trends, edited by Professor Alessandro Pegoretti, a scholar from the University of Trento in Italy, introduces the reader to recent developments involved in health monitoring of aerospace structures. The chapters, represented by seminal SAE International technical papers, offer an overview of the most recent advances in the sensing techniques for SHM, analysis of SHM data and its applications in aerospace. SHM can allow a continuous in-service inspection of the vehicle, thus reducing the cost associated with manual inspection at predetermined time intervals.

Book

State-of-the-Art Infrared Detector Technology

2014-01-01

Scientists, engineers, managers, and policy makers who are currently involved in the funding of infrared R&D and subsequent system design and manufacture are confronted with a choice between two competing materials technologies, HgCdTe and III-V alloys. State-of-the-Art Infrared Detector Technology examines both the current and future performance of infrared focal plane arrays that use the various device architectures associated with these two materials technologies. All spectral bands from long wavelength (LWIR) through mid-wavelength (MWIR) to short wavelength (SWIR) are considered, ultimately with a view to achieving background and diffraction-limited system performance at room temperature for all wavelengths.

Book

Solar Energy Harvesting: How to Generate Thermal and Electric Power Simultaneously

2016-01-01

Solar Energy Harvesting: How to Generate Thermal and Electric Power Simultaneously describes energy harvesting using a hybrid concentrating photovoltaic (PV) system with simultaneous thermal generation for energy storage. Several designs have been proposed to build a system that takes advantage of the entire solar spectrum through direct electric generation using concentrated light onto photovoltaics while generating thermal energy using wavelengths of light not captured by the PV cell. This title addresses the current technologies and state-of-the-art designs, as well as the methodologies, underlying physics, and engineering implications.

Book

Sensors: Miniaturization and Testing (DVD)

2015-04-15

"Spotlight on Design" features video interviews and case study segments, focusing on the latest technology breakthroughs. Viewers are virtually taken to labs and research centers to learn how design engineers are enhancing product performance/reliability, reducing cost, improving quality, safety or environmental impact, and achieving regulatory compliance. Accurate data is critical for the testing and development of parts and systems for cars, trucks, and airplanes. To obtain this data, engineers rely on high-end specialty sensors that can fit into cramped spaces and operate reliably under extreme heat and pressure. In the episode "Sensors: Miniaturization and Testing" (21:02), AVL engineers explain how a new crystalline material was developed to accurately measure the high pressures in the combustion chamber of turbocharged engines, and Meggitt Sensing Systems profiles the world’s smallest triaxial IEPE accelerometer.

Book

Sensors: Advanced Safety (DVD)

2015-04-15

"Spotlight on Design" features video interviews and case study segments, focusing on the latest technology breakthroughs. Viewers are virtually taken to labs and research centers to learn how design engineers are enhancing product performance/reliability, reducing costs, improving quality, safety or environmental impact, and achieving regulatory compliance. Sensors are essential to the safety, efficiency, and dependability of modern vehicles. Crash sensors can anticipate a collision faster than humans would, and tire pressure sensors can alert the driver or pilot in case action is needed. In the episode "Sensors: Advanced Safety" (20:36) Continental engineers look at the evolution of passive safety systems, discuss the changes in sensors over the last ten years and what is coming next. Engineers at Meggitt demonstrate how tire pressure monitoring system sensors for aerospace are built and tested.

Book

Sensor and Data Fusion: A Tool for Information Assessment and Decision Making, 2nd Ed.

2012-01-01

The information in the second edition of this volume has been substantially expanded and updated to incorporate recent approaches to sensor and data fusion, as well as additional application examples. A new chapter about data fusion issues associated with multiple-radar tracking systems has also been added. This chapter includes topics such as sensor registration requirements, Kalman filtering, and a discussion of interacting multiple models. As in the first edition, the book discusses the benefits of sensor fusion that accrue when sensors that operate with different phenomenologies or surveil separate volumes of space are used to gather signatures and data about objects or events in their field of view.

Book

Safety and Reliability in Cooperating Unmanned Aerial Systems

2010-01-01

This book provides a comprehensive overview of recent advances in the analysis and design of health management systems for cooperating unmanned aerial vehicles. Such systems rely upon monitoring and fault adaptation schemes. Motivation for their study comes from the fact that, despite the use of fault-tolerant control software and hardware embedded onboard air vehicles, overall fleet performance may still be degraded after the occurrence of anomalous events such as systems faults and failures. Cooperative health management (CHM) systems seek to provide adaptation to the presence of faults by capitalizing on the availability of interconnected computing, sensing and actuation resources. This monograph complements the proposed CHM concepts by means of case studies and application examples. It presents fundamental principles and results encompassing optimization, systems theory, information theory, dynamics, modeling and simulation.

Book

SAE International Journals Complete Set

2013-02-15