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Viewing 31 to 60 of 16234
2015-09-15
Journal Article
2015-01-2621
Douglas Leicht
Abstract Aviation regulations requires that engine mounts, and other flight structures located in designated fire zones must be constructed of fireproof material so that they are capable of withstanding the effects of fire. Historically, steel is defined as being inherently fireproof, however, titanium was not. Therefore, a fireproof test was conducted using 6AL-4V titanium structure for the attachment of the propulsion system on a mid-size business jet to satisfy FAA Federal Aviation Requirement 25.865. To determine if the titanium structure would be able to support normal operating loads during the fire event, finite element analysis was performed on the titanium structure simulating the fire test. The fire test simulates a fire on the aircraft from the propulsion system by using a burner with jet fuel exposing the component to a 2000 °F (1093°C) flame. The 2000 °F (1093°C) Flame is calibrated based on FAA Advisory Circular AC20-135.
2015-09-15
Technical Paper
2015-01-2539
Alessandro Gardi, Roberto Sabatini, Subramanian Ramasamy, Matthew Marino, Trevor Kistan
Abstract As part of the current initiatives aimed at enhancing safety, efficiency and environmental sustainability of aviation, a significant improvement in the efficiency of aircraft operations is currently pursued. Innovative Communication, Navigation, Surveillance and Air Traffic Management (CNS/ATM) technologies and operational concepts are being developed to achieve the ambitious goals for efficiency and environmental sustainability set by national and international aviation organizations. These technological and operational innovations will be ultimately enabled by the introduction of novel CNS/ATM and Avionics (CNS+A) systems, featuring higher levels of automation. A core feature of such systems consists in the real-time multi-objective optimization of flight trajectories, incorporating all the operational, economic and environmental aspects of the aircraft mission.
2015-09-15
Technical Paper
2015-01-2544
Subramanian Ramasamy, Roberto Sabatini
Abstract Avionic system developers are currently working on innovative technologies that are required in view of the rapid expansion of global air transport and growing concerns for environmental sustainability of aviation sector. Novel Communication, Navigation and Surveillance (CNS) system designs are being developed in the CNS/Air Traffic Management (CNS/ATM) and Avionics (CNS+A) context for mission-and safety-critical applications. The introduction of dedicated software modules in Next Generation Flight Management Systems (NG-FMS), which are the primary providers of automated navigation and guidance services in manned aircraft and Remotely-Piloted Aircraft Systems (RPAS), has the potential to enable the significant advances brought in by time and trajectory based operations. High-integrity, high-reliability and all-weather services are required in the context of four dimensional Trajectory Based Operations / Intent Based Operations (TBO/IBO).
2015-09-01
Magazine
Driving EVs toward lower cost The race is on to reduce battery and electric-drive systems costs while improving efficiency. Seeking ways to make better computer crashes New models and simulations help improve safety as software and hardware provide more realism to iterate designs more quickly. Evaluating aluminum bonds Adhesively joined aluminum alloy sheets present challenges that steel-adhesive joints do not. Ford researchers present a modified technique to inspect Al-adhesive joints in lab and production environments. Leading the attack on engine pumping losses Cylinder deactivation delivers real-world fuel economy gains, helping vehicles to meet and exceed their sticker numbers. That’s why the downsized/boosted guys now want it on their engines.
2015-08-28
Standard
AIR6185
This SAE Aerospace Information Report (AIR) describes hydraulic system design and installation to minimize the effects of lightning, especially when the aircraft structure is composite. Techniques for effective electrical bonding, hydraulic system lightning protection, and lightning protection verification techniques are discussed.
2015-08-28
Standard
AS5355/2A
SCOPE IS UNAVAILABLE.
2015-08-28
Standard
AS5355/3A
SCOPE IS UNAVAILABLE.
2015-08-28
Standard
AS5355/1A
SCOPE IS UNAVAILABLE.
2015-08-27
Standard
J2418_201508
This SAE Recommended Practice describes the test procedures for conducting frontal impact restraint tests for heavy truck applications. Its purpose is to establish recommended test procedures that will standardize restraint system testing for heavy trucks. Descriptions of the test set-up, test instrumentation, photographic/video coverage, and the test fixtures are included.
2015-08-25
Article
For automakers, earning a 5-star safety rating in the government and insurance industry tests is a major source of pride. In this episode of SAE Eye on Engineering, Senior Editor Lindsay Brooke looks at the latest vehicle to earn 5 stars: Honda's 2016 Pilot.
2015-08-21
WIP Standard
ARP6344
This Aerospace Recommended Practice (ARP) establishes a test procedure and recommended surge pressure limit value for the evaluation of fixed aircraft pressure fuel dispensing systems. Note: This ARP is not applicable to aerial refueling systems or mobile aircraft refueling systems (trucks, hydrant servicing vehicles, etc.). Testing of aerial refueling systems is addressed in ARSAG documents. Testing of mobile refueling systems is addressed in ARP 5918. Note: This ARP does not address requirements that may be specific to the testing of shipboard aircraft refueling systems.
2015-08-20
Article
The automaker is developing a camera-based lighting system that can automatically widen dipped beams at road junctions and roundabouts. It is also researching infrared image triggered spotlighting and an intelligent GPS linked system.
2015-08-19
WIP Standard
J2831
This Information Report provides recommendations for alphanumeric messages that are supplied to the vehicle by external (e.g., RDS, satellite radio) or internal (e.g., infotainment system) sources while the vehicle is in-motion. Information/design recommendations contained in this report apply to OEM (embedded) and aftermarket systems. Ergonomic issues with regard to display characteristics (e.g., viewing angle, brightness, contrast, font design, etc.) should review ISO 15008.
2015-08-19
WIP Standard
ARP4740A
This ARP addresses the issue of passengers smoking in aircraft lavatories and the need to improve warnings about the danger of fire caused by smoking.
2015-08-18
Magazine
The advent of stop-start technology As environmental concerns grow for R&D teams, OEMs look to bring the strategy further into the mainstream. Recycling opportunities for hybrid/electric vehicle lithium-ion batteries With limited reserves and strict environmental regulations, re-cyclers look to established extraction means to reuse, recycle, and dispose of the used batteries. Cameras look to go the distance Automakers seek vision systems with greater distances, improved reliability, and more functionality, thanks to ruggedized complementary metal-oxide semiconductor technologies. Getting right with composites With composites now a mainstay in most new aircraft de-signs, the engineering emphasis has switched from understanding if they work to thinking through the most efficient way to manufacture them, such as using design-for-manufacturing software.
2015-08-11
WIP Standard
AS4468G
This SAE Aerospace Standard (AS) covers the requirements for a flexible, lightweight, low pressure, self-extinguishing, silicone hose assembly. The hose has a fully fluorinated fluoropolymer inner liner and is primarily intended for use in aircraft potable water systems.
2015-08-07
Standard
AS5562
This SAE Aerospace Standard (AS) establishes minimum ice and rain performance criteria for electrically-heated pitot and pitot-static probes intended for use on the following classes of fixed-wing aircraft and rotorcraft. The classes of fixed-wing aircraft are defined by aircraft flight envelopes and are shown in Figure 1. The flight envelopes generally fall into the classes as shown below: Class 1: Cruise altitude ≤ 23 000 feet Class 2: Cruise altitude ≤ 31 000 feet Class 3: Cruise altitude ≤ 42 000 feet Class 4: Cruise altitude > 42 000 feet Class R: Rotorcraft The user of this standard must evaluate the aircraft level installation requirements for the probe against the class definition criteria to ensure adequate coverage for the application. It may be necessary to step up in class or modify the test conditions in order to meet the applicable installation requirements. NOTE: Class 2 is divided into two subgroups identified as either Class 2a or Class 2b.
2015-08-05
Magazine
Making sense of autonomy Industry offers a range of sensors that will free humans from many tasks while also improving reliability, though devising strategies that meet demanding requirements without breaking the bank is no easy challenge. Life-cycle planning-Design and calibration for ultimate efficiency The ultimate power of Big Data technologies relies on the implementation of new strategies. Unlike a traditional engine calibration process, in which only calibration test data and model simulation data are used, multiple source data introduced into the adaptive engine calibration process contributes to efficiency and cost reduction. The complicated future of off-highway engines Developing an optimum engine is getting tricky now that the European Union has established a Stage V for off-highway engines, and the U.S. has not. What effect will this have on future engine designs?
2015-08-04
WIP Standard
AIR4730A
This document provides information on the preparation and use of video for operational and maintenance training of personnel associated with GSE.
2015-08-03
Magazine
Big Data, aircraft, and a better future Aircraft manufacturers, in particular engine makers, are exploiting the opportunities that come with collecting the vast amount of data available, from customer reports to engine exhaust temperatures. Why is it potentially so useful? What are some of the best ways to use it? Let the good times continue to roll The booming international commercial aviation sector continues to be a bright light leading the future of the aerospace industry.
2015-07-30
Standard
J3045_201507
This SAE recommended practice establishes a uniform, powered vehicle T.P. for lane departure warning systems used in highway trucks and buses greater than 4,546 kg (10,000 lb) GVW. Systems similar in function but different in scope and complexity, including Lane Keeping/Lane Assist and Merge Assist, are not included in this T.P. This T.P. does not apply to trailers, dollies, etc. This T.P. does not intend to exclude any particular system or sensor technology. The specification will test the functionality of the LDWS (e.g., ability to detect lane presence, and ability to detect an unintended lane departure), its ability to indicate LDWS engagement, its ability to indicate LDWS disengagement, and determine the point at which the LDWS notifies the Human Machine Interface (HMI) or vehicle control system that a lane departure event is detected. The HMI is not addressed herein, but is considered in SAE Standard J2808.
2015-07-23
Article
The company is looking at adjacent markets for its large video screens and sees the truck industry as a potential opportunity. The Safety Truck prototype was developed with the aim of improving road safety.
2015-07-22
Standard
J2779_201507
This procedure establishes a recommended practice for performing a Low Speed Thorax Impact Test to the Hybrid III 50th Male Anthropomorphic Test Device (ATD or crash dummy). This test was created to satisfy the demand by the industry to have a calibration test which resulted in similar results to an actual low energy automotive impact test. An inherent problem exists with the current calibration procedure because the normal (6.7 m/s) thorax impact test has test corridors that are not representative to these low energy impact tests. The normal test corridors specify a displacement range of around 68 mm and the low speed displacement corridor needs to be around 25 mm. The intent of this recommended practice is to develop a low speed thorax calibration procedure for the H-III50M dummy in 25 to 30 mm deflection range.
2015-07-22
Book
2015-07-20
WIP Standard
AS4108/1A
SCOPE IS UNAVAILABLE.
2015-07-20
WIP Standard
AS4108/3A
SCOPE IS UNAVAILABLE.
2015-07-20
WIP Standard
AS4108/2A
SCOPE IS UNAVAILABLE.
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