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2014-01-12
Article
The diagnostics of machinery requires analysis of the time series of sensor and control signals.
2014-01-10
Standard
AMS2629D
This specification covers a mixture of liquid hydrocarbons and soluble additives. To provide a standard composition, simulating aviation jet engine fuel. This fluid has been used typically in laboratory tests involving compatibility and interaction with aircraft materials, but usage is not limited to such applications.
2014-01-08
Article
A widely used material for lightning strike protection of CFRP structures within the aerospace industry is expanded metal foil (EMF). An issue with EMF is micro cracking of the paint, which can result in corrosion of the metal foil and subsequent loss of conductivity. Boeing researchers examined the issues of stress and displacement in the composite structure layup, which contribute to paint cracking caused by aircraft thermal cycling.
2014-01-08
WIP Standard
ARP9162A
The focus of Operator Self-Verification is on traditional manufacturing operations, and applications can be made wherever traditional inspection is employed. The practices recommended in this document are intended to identify the basic elements and provide a "guideline " for structuring Operator Self-Verification programs within the aerospace industry; applicable to producers of commercial and military aircraft and weapons platforms, space vehicles, and all related hardware, software, electronics, engines and composite components. Operator Self-Verification programs are applied to improve the overall efficiency and product quality of processes considered mature, as judged by the implementing organization. Operator Self-Verification programs are not stand-alone processes, but augment existing quality management systems.
2014-01-07
Article
Because its engineers have made faster progress than expected, Toyota will offer a fuel-cell car in the U.S. in 2015—earlier than it had planned—the company announced Jan. 6 at the Consumer Electronics Show in Las Vegas.
2014-01-03
Article
Liquid ring pumps are used in aircraft fuel systems in conjunction with main impeller pumps and are used for priming the pump system as well as to remove fuel vapor and air from the fuel.
2014-01-02
Article
After a 10-month selection process involving 25 proposals from 24 states, the U.S. FAA has chosen six unmanned aircraft systems (UAS) research and test site operators across the country. In selecting the six test site operators, the FAA considered geography, climate, location of ground infrastructure, research needs, airspace use, safety, aviation experience, and risk.
2013-12-27
Article
Macro Sensors CD series of subminiature LVDT position sensors features a lightweight, low-mass core, compact 0.375 in diameter, and accuracy necessary for many aerospace applications with tight space and weight restrictions.
2013-12-19
Article
The goal of the program, which began in 2007, is to advance development of new sensor and control technologies with the aim of applying them to the active safety systems of future vehicles.
2013-12-19
Article
As some features quiet children, others interfere with driver concentration on the road ahead, studies by AAA and MIT find. Toyota is testing transfer of tasks to passengers to relieve the driver of cognitive overload.
2013-12-17
Standard
AMS2411H
This specification covers the requirements for silver deposited on metal parts with a nickel strike between the basis metal and the silver deposit.
2013-12-13
Standard
AMS2649D
This specification establishes the requirements for etch inspection of bare high strength low alloy steel parts having tensile strength of 180 ksi (1241 MPa) and higher and of carburized parts to detect overheating caused by abusive machining or grinding in the heat treated condition, and to detect localized discontinuous carburization. This process is not applicable to surface hardened steels produced by nitriding or carbonitriding. This process may remove 0.0001 to 0.0005 inch (2.5 to 12.7 micrometers) from the surface of the part.
2013-12-12
Standard
AMS2404G
This specification covers the requirements for electroless nickel deposited on various materials. This deposit has been used typically to provide a uniform build-up on intricate shapes, to improve wear and/or corrosion resistance, or to improve solderability on or for selected materials, but usage is not limited to such applications. The deposit has been used in service up to 1000 °F (540 °C) although wear and/or corrosion resistance may degrade as service temperature increases.
2013-12-10
Article
ExhaustTrak from Sierra-CP Engineering, the Automotive Test Division of Sierra, was designed in response to customer requirements for a rugged, accurate, and fast solution for direct exhaust mass flow measurement, and is specifically designed for transient cycle flow rate measurement.
2013-12-10
Standard
J2380_201312
This SAE Recommended Practice describes the vibration durability testing of a single battery (test unit) consisting of either an electric vehicle battery module or an electric vehicle battery pack. For statistical purposes, multiple samples would normally be subjected to such testing. Additionally, some test units may be subjected to life cycle testing (either after or during vibration testing) to determine the effects of vibration on battery life. Such life testing is not described in this procedure; SAE J2288 may be used for this purpose as applicable. Finally, impact testing, such as crash and pothole, is not included in this procedure.
2013-12-06
Article
If smaller and thinner particles can be aligned in a certain way, it may be possible for a battery to hold a charge 50% longer than current batteries can.
2013-12-05
Article
AEI is not a publication that would normally embrace road impressions of a vehicle: the extraordinary Volkswagen XL1 is a very rare exception.
2013-12-05
Standard
AMS2695E
This specification covers electrical connections made with single, solid, round copper or copper alloy wire wrapped around copper alloy terminals without the use of solder.
2013-12-04
Article
While shifting the manufacturing process of a composite part from pre-impregnated to a new liquid resin injection process, the Composites Development team at Bombardier Aerospace had to redesign the component to a new set of design allowables. The Integrated Product Development Team was able to quickly provide a turnkey solution that resulted in a positive business case for both weight and cost.
2013-12-02
Article
Millbrook Proving Ground in the U.K. has introduced a Portable Emissions Measurement System (PEMS).
2013-11-26
Article
UniWest has expanded the EddyView family with three portable eddy current testing instruments: the Prime, Pro, and Premium instruments are off-the-shelf and readily available.
2013-11-26
Article
Asylum Research’s blueDrive photothermal excitation is available on its Cypher atomic force microscopes.
2013-11-26
Article
ARPA-e targets "robust" batteries that not only bear loads but also absorb crash-impact energy to save weight.
2013-11-24
Article
Researchers devised the tests to prove that active flow control can enhance the performance of a vertical tail enough to allow future designers to reduce the size of the structure for a whole family of airplanes.
2013-11-22
Article
Now that simulation and modeling are common techniques for designing equipment, standards groups are stepping in to add a bit more structure and compatibility for these tools. Two trade associations have paired up to establish a working group that aims to make it simpler to merge engineering analysis with overall systems behavior analysis.
2013-11-13
Article
A forum at the 2013 SEMA Show discussed three approaches to ensure performance parts compliance with federal safety standard No. 126. Panelists also explained how simulation data, and kinematics and compliance measurements, can improve performance parts design.
2013-11-12
Article
MESSRING offers the new M=BUS in-dummy data acquisition system for the WorldSID (Worldwide Harmonized Side Impact Dummy) 5th Small Female Dummy.
2013-11-11
WIP Standard
AS9132B
This SAE Aerospace Standard (AS) defines uniform Quality and Technical requirements relative to metallic parts marking performed in using "Data Matrix symbology" used within the aerospace industry. The ISO/IEC 16022 specifies general requirements (data character encodation, error correction rules, decoding algorithm, etc.). In addition to ISO/IEC 16022 specification, part identification with such symbology is subject to the following requirements to ensure electronic reading of the symbol. The marking processes covered by this standard are as follows: - Dot Peening - Laser - Electro-Chemical Etching Further marking processes will be included if required. This standard does not specify information to be encoded. Unless specified otherwise in the contractual business relationship, the company responsible for the design of the part shall determine the location of the Data Matrix Marking. Symbol position should allow optimum illumination from all sides for readability.
2013-10-31
Article
New R-1234yf production is promised by Arkema. SAE Cooperative Research Group shows R-445A blend has potential, and vehicle prototype charging equipment for assembly line and service shop is undergoing testing. German automakers resurrect the R-744 (carbon dioxide as a refrigerant) development program.
2013-10-31
Article
Combustion simulation has the potential to help engine manufacturers design better engines in less time with less cost.
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