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Aerospace & Defense Technology: August 2020

Reverse Engineering the Boeing E-3 Sentry's Secondary Flight Controls Vanadium - A Green Metal Critical to Aerospace and Clean Energy Thrust in Space - The Nuances of Thruster Valve Design 3D Printing Aerodynamic Improvements Cryogenic-Capable Isolators Improve the Performance of Millimeter-Wave Systems by Lowering Noise Levels Detection with Quantum Radar A new radar prototype utilizes quantum entanglement as a method of object detection. Preliminary Development of an Integrated Mobility, Lethality, and Survivability Soldier Performance Testing Platform Developing a methodology that incorporates objective measures of performance and is sensitive to changes in soldier-system equipment could help guide equipment manufacturers during product development and acquisition. Bore Elevation and Azimuth Measurement System (Beams) Newly developed laser apparatus verifies that the pointing accuracy requirement of a weapon's fire control system is met.

Aerospace Engineering & Manufacturing 2008-12-01

From part to plane: the fastest machine wins Next-gen machining centers and controllers brings new precision and capabilities to both metal and composite manufacturing. Files moved around the world As aircraft manufacturers distribute more jobs to contractors, streamlining the transfer of information has become an important part of both design and manufacturing. Top technologies of 2008 A look back at some of the most significant technological innovations during the past year. VLJ power Some engine programs for very light jets are full swing while certification awaits others.

Aerospace Engineering 2000-12-01

Noise and vibrations control A variety of active and passive methods can be used to reduce cabin noise and fuselage vibration. Bringing efficiency to flight testing To meet itsgoal of one new aircraft activity each year, Bombardier's Flight Test Center has sought to reduce aircraft development cycle time by focusing on test planning, safety, and configuration control. Propulsion flight testing Originally conceived for just the GE90 aircraft engine program, GE Aircraft Engines' Boeing 747 flying test bed has evolved into the company's primary commercial engine test aircraft. Top technologies for 2000 Each month, "Aerospace Engineering" publishes the latest technologies. The "Aerospace Engineering" editors have reviewed thousands of reader responses during the past year and have chosen the "best of the best" along with runners-up.

Aerospace Engineering 2000-01-01

Simulation solves C5 cargo door problem Dynamic analysis software allows engineers to solve fatigue-related problems without prototypes. UAV development Although unmanned aerial vehicles (UAVs) have been employed successfully by the U.S. military to date, many development and operational challenges remain for these to become viable alternatives for manned aircraft. Aircraft engine testing: the test tig developer Engineers at Belcan's Advanced Engineering & Technology Division share their insights and experiences on the development of aircraft gas turbine test rigs and stands. This is the first installment of a three-part series on aircraft engine testing. Looking back at factory automation The ability to improve quality while substantially reducing the cost of production and span times is becoming a necessity to complete in today's aerospace industry.

Aerospace Engineering 2005-01-01

Flying safer Software is being designed to predict pending failures, warn pilots, and maybe even fly the plane. CMM + laser probe = complete inspection Sonaca gave up its manual inspection methods in favor of a digital approach to save time- and money. A rounded view of fibers The use of fibers for aerospace gyroscope applications- notably inertial navigation and platform stabilization- is common now, but it was not always so. Piston engine propulsion SAE 100 Future look: As the propulsion industry looks to the future, the barriers remain challenging, the drivers more critical, but the innovations more promising. What's downstream in turbine technology SAE 100 Future look: Gas turbine machines-aviations, industrial, and vehicular- are versatile and cost-effective machines used for the provision of electricity, mechanical load power, and propulsion.

Aerospace Engineering 2005-09-01

Advanced materials for manufacturability The big three- aluminum, titanium, and composites- duke it out in the sky. Automation makes big advances Aircraft manufacturers continue to adopt new technologies that improve efficiency, speed up production, and reduce worker injuries. Electric braking debuts in military and commercial applications SAE 100 Future look: Goodrich led the development of electromechanical aircraft braking with a highly focused team of experts from three divisions within the company, each working in their own fields of expertise: braking performance, electronic controls, and electromechanical acutators (EAs). Looking into the future with NDT SAE 100 Future look: The need for systemized inspection inthe aircraft industry did not arise until the dramatic increase in air travel that took place in the late 1940s. Electronic warfare SAE 100 Future look: Today's combat aircraft commonly use electronic warfare (EW) receivers and jammers for self protection.

Aerospace Engineering 2001-06-01

Eurofighter ergonomics BAE Systems looks to Direct Voice Input to address cockpit ergonomic concerns for the Eurofighter Typhoon. Aeropropulsion testing One of the nation's largest complex of test facilities, the Arnold Engineering Development Center is involved extensively in the ground testing of propulsion systems.

Aerospace Engineering 2000-08-01

Cabin window design The expanded operating conditions of the Gulfstream V aircraft required engineers to redesign the cabin window to provide for a longer service life, lighter weight, and improved functionality. European wind tunnels This first in a two-part series on global wind tunnel use and capabilities investigates several European research organizations' facilities.

Aerospace Engineering & Manufacturing 2009-03-01

Toward greener skies Engine designers harness new technologies to embrace the eco-challenge. Going with the flow Advanced balances, pressure-sensitive paint, and wind-tunnel testing streamline aircraft aerodynamics. Orbital drilling goes mainstream for the Dreamliner Boeing and Novator worked together to overcome the obstacles of drilling holes into new material combinations being used in next-gen aircraft.

Metallic Materials Properties Development and Standardization (MMPDS) Handbook - 09

The Metallic Materials Properties Development and Standardization (MMPDS) Handbook, is an accepted source for metallic material and fastener system allowables recognized by the Federal Aviation Administration (FAA), all departments and agencies of the Department of Defense (DoD), and the National Aeronautics and Space Administration (NASA), within the limitations of the certification requirements of the specific government agency. MMPDS-09 supersedes MMPDS-08and prior editions of the MMPDS as well as all editions of MIL-HDBK-5, Metallic Materials and Elements for Aerospace Vehicle Structures that was maintained by the U.S. Air Force. The last edition, MIL-HDBK-5J was cancelled by the U.S. Air Force in March of 2006.

Automatic Target Recognition

Automatic Target Recognition provides an inside view of the automatic target recognition (ATR) domain from the perspective of an engineer working in the field for 40 years. The algorithm descriptions and testing procedures covered in the book are appropriate for addressing military problems and unique aspects and considerations in the design, testing, and fielding of ATR systems. These considerations need to be understood by ATR engineers working in the defense industry as well as by their government customers. The final chapter discusses the future of ATR and provides a type of Turing test for determining if an ATR system is truly smart (neuromorphic or brain-like). The Appendix provides difficult-to-find resources available to the ATR engineer.

Corrosion of Weldments

Corrosion failures of industrial components are commonly associated with welding. The reasons are many and varied. For example, welding may reduce the resistance to corrosion and environmentally assisted cracking by altering composition and microstructure, modifying mechanical properties, introducing residual stress, and creating physical defects. Corrosion of Weldments details the many forms of weld corrosion and the methods used to minimize weld corrosion. Chapters on specific alloys groups—carbon and alloy steels, stainless steels, high-nickel alloys, and nonferrous alloys—describe both general welding characteristics and the metallurgical factors that influence corrosion behavior. Corrosion problems associated with dissimilar metal weldments are also examined. Special challenges caused by high-temperature environments are discussed.

Automotive Engineering International 2007-03-01

Cars become more understanding Software and hardware advances are enabling voice-recognition technologies to rise to industry challenges. Wanted: Broader knowledge, new skills Continuous learning is a must for engineers to meet greater technology and productivity challenges -- and boost their own marketability. Seeing green Environmental and cost benefits are driving the auto industry to adopt materials derived from renewable sources such as soybeans and corn. Searching for fossil-fuel alternatives Future engine and drivetrain programs at Volkswagen are focused on alternative fuels and radical changes to engine combustion, but the battery may yet provide the light at the end of the technology tunnel. Emissions rules keep labs humming As long as there are regulations, engineers and technicians will be busy running tests in laboratories.

Powder Metallurgy Stainless Steels: Processing, Microstructures, and Properties

Progress in the understanding of corrosion and corrosion resistance properties of sintered stainless steels has lead to new applications that benefit from net shape processing and more efficient material utilization. Powder Metallurgy Stainless Steels includes extensive graphics, and tabular summaries provide a comprehensive reference to obtain good corrosion resistance properties of sintered stainless steels with careful processing, starting with powder selection, avoidance of contamination, efficient delubrication, and controlled sintering and cooling. Contents cover: Metallurgy and Alloy Compositions, Manufacture and Characteristics of Stainless Steel Powders, Compacting and Shaping, Sintering and Corrosion Resistance Alloying Elements, Optimal Sintering, and Surface Modification in PM Stainless Steels Mechanical Properties, Magnetic and Physical Properties, Corrosion Testing and Performance, Secondary Operations, and Applications.


Valve controls Imagine a valve control system that is infinitely variable irrespective of engine speed and load. Impossible? Not according to Camcon Automotive's technical director Roger Stone, as Ian Adcock discovers Mother Nature knows best What can the automotive industry learn from nature when it comes to weight saving? Ryan Borroff has been finding out Building up the pressure Tony Lewis reports on the growing trend towards even higher line pressures in injection systems.

Automotive Engineering International 2007-09-01

Avoiding crashes through engineering Sensor fusion and FlexRay adoption pose big challenges for active-safety systems developers. Sounds of silence NVH analysis comes into the spotlight as traditional targets are addressed and new trouble spots are uncovered. Fuel cells power up As the alternative-propulsion technology moves from lab to limited production, car makers are looking for new design solutions and materials to reduce costs.

Automotive Engineering International 2007-04-01

Spec Formula One The series is moving forward with new rules to reduce cost and make racing more directly relevant to road-car development. Adding foresight Radar and cameras will work together to help drivers avoid accidents. Lexus LS 460:AEI's Best Engineered Vehicle for 2007 The fourth generation of Lexus' global flagship sets new standards in engineering, technical innovation, refinement, and workmanship. Hot off the grid New interest in plug-in hybrids has sparked intense R&D in battery chemistries and systems integration. Digital developments Ever-improving computer-based tools are helping engineers complete more complex designs in shorter time frames with downsized staffs. Illuminating technology Sensor-linked lighting systems, automatic high-beam control, LED headlights, and brand-identifying cabin lighting are enhancing safety, convenience, and the feel-good factor.

Automotive Engineering International 2013-06-04

Global Viewpoints - Europe: Smartening up R&D As every aspect of automotive technology makes rapid advances, R&D becomes ever more complex and faces additional pressures on cost and time. In our annual report from Europe, we spoke to very senior executives about their R&D methods and the demanding criteria they face. LEDs light the way for SuperTruck A research team developed a group of low-energy; high-output LED lamps for forward lighting that could be retrofitted into the truck's current incandescent headlamp housing and lens. Plastic proliferation under the hood Plastic components continue to displace metal engine parts because of cost and weight advantages.

Automotive Engineering International 2013-06-18

Oak Ridge answers A/C-on fuel use questions The lab runs fuel-economy tests with A/C on maximum vs. A/C 'comfort level,' A/C-off and with windows open and closed. Some results are surprising, including an unexpected 'crossover' point in testing on a Toyota Corolla.