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Viewing 61 to 90 of 17396
2017-07-10
Technical Paper
2017-28-1932
Ganesh Dharmar, Ravichandrika Bhamidipati, Satheesh Kumar
Abstract Traffic awareness of the driver is one of the prime focus in terms of pedestrian and road safety. Driver experience plays a significant role and driving requires careful attention to changing environments both within and outside the vehicle. Any lapse in driver attention from the primary task of driving could potentially lead to an accident. It is observed that, lack of attention on the ongoing traffic and ignorant about the traffic information such as traffic lights, road signs, traffic rules and regulations are major cause for the vehicle crash. Traffic signals & signage are the most appropriate choice of traffic control for the intersection, it is important to ensure that driver can see the information far away from the intersection so that he/she can stop safely upon viewing the yellow and red display. Then, upon viewing the signal operations and conditions the motorist can stop his/her vehicle successfully before entering the intersection.
2017-07-07
Article
When cars become capable of self driving, drivers will still have to remain alert and be ready to take control.
2017-07-07
Article
The 418th Flight Test Squadron at Edwards Air Force Base is currently assessing a new parachute for the Advanced Concept Ejection Seat II that will improve safety and expand the acceptable personal weight range of aircrew.
2017-06-30
WIP Standard
AIR7975
Generic overview of fuel system design and sizing, and guidelines for installation of various fuel system elements
2017-06-29
Journal Article
2017-01-9001
Hermann Ferschitz, Michael Wannemacher, Otto Bucek, Florian Knöbel, Wolfgang Breitfuß
Abstract RTA Rail Tec Arsenal Fahrzeugversuchsanlage GmbH has focused on the simulation of in-flight icing conditions since 2012. Following the successful implementation of the icing conditions specified in EASA CS-25 Appendix C, it was expected that the facility could also be used to simulate the SLD conditions required by EASA CS-25 Appendix O. This paper sets forth theoretical considerations concerning the selection of suitable nozzles and their operation in the existing facility. The transport of large droplets through the contraction nozzle was simulated using a CFD program. The results then served as a basis for deriving secondary droplet breakup. The validations carried out confirm the theoretical considerations and identify potential limits and open research questions.
2017-06-28
WIP Standard
J3145
This SAE Recommended Practice is intended as a guide for specifying LED Substitute Light Sources as Equivalents for corresponding RID filament light sources and is subject to change to keep pace with experience and technical advances. This document defines criteria for technical equivalence in order to make a substitution of a filament light source with an LED light source without compromising the performance of the RID device.
CURRENT
2017-06-28
Standard
AS6316
This SAE Aerospace Standard (AS) documents a common understanding of terms, compliance issues, and occupant injury criteria to facilitate the design and certification of oblique facing passenger seat installations specific to Part 25 aircraft. The applicability of the criteria listed in this current release is limited to seats with an occupant facing direction greater than 18° and no greater than 45° relative to the aircraft longitudinal axis. Seats installed at angles greater than 30° relative to the aircraft longitudinal axis must have an energy absorbing rest or shoulder harness and must satisfy the criteria listed in Table 2. Later revisions are intended to provide criteria for other facing directions. Performance criteria for forward and aft facing seats are provided in AS8049 and for side facing seats in AS8049/1.
2017-06-27
Article
Automotive suppliers and companies from other fields are jockeying to team up with the right group of partners to provide services for the growing "ecosystem" of connected vehicles and smart cities.
CURRENT
2017-06-27
Standard
AIR6027A
The information presented in this AIR is intended to provide designers of armed unmanned systems with guidelines that may be applied to ensure safe integration and operation of weapons on unmanned platforms. The guidelines have been developed from experiences gained in the design and operation of weapons on manned aircraft that have been accepted by relevant safety authorities in the USA and Europe and proven effective over many years. Whilst the guidelines have been developed from experience with aircraft operations, the concepts are considered equally applicable to non-aircraft systems, such as those used on the surface or undersea environments.
2017-06-27
WIP Standard
ARP6955
This SAE Aerospace Recommended Practice (ARP) document covers the requirements for a Snowcompressor with carrier vehicle used to clear snow from airport operational areas by compressing the volume of collected snow into smaller volumes for loading into a hauling/dump truck or for depositing reduced-volume windrows for snow banking. The term carrier vehicle represents the various self-propelled prime movers that provide the power necessary to move snow and ice control equipment during winter operations. For two-stage rotary plows that primarily are used to cast heavy concentrations of snow away from airport operational areas such as runways and taxiways, see ARP5539.
2017-06-26
Article
Automatic Emergency Braking, or AEB, uses radar to monitor a vehicle's closeness to the vehicle ahead.
2017-06-22
WIP Standard
AS4200B
SCOPE IS UNAVAILABLE.
2017-06-20
Article
Under their new non-exclusive cooperation, ZF and Hella have begun jointly developing camera, imaging and radar systems, with the goal of entering production by 2020.
2017-06-16
Article
It's possible to thwart most, but not all, cyber incidents.
2017-06-15
WIP Standard
AS6034
Create an AS standard for a high temperature loop type support clamp in 625 nickel alloy in sizes shown on AS9025 and oversized for use with .028" wearsleeves.
2017-06-12
WIP Standard
ARP6954
This SAE Aerospace Resource Document (ARD) document covers the requirements for a self-propelled GRV, intended for use at airports to collect spent aircraft de-icing fluid (ADF) from the surface of de-icing areas. This unit will recover de-icing fluid from the surface, which will be stored in a containment unit on the vehicle. The GRV must be capable of night and day operations in all weather conditions, as required.
CURRENT
2017-06-09
Standard
AMS1424N
This foundation specification (AMS1424N) and its associated category specifications (AMS1424/1 and AMS1424/2) cover a deicing/anti-icing material in the form of a fluid.
2017-06-08
WIP Standard
AS598A
This SAE Aerospace Standard (AS) defines the materials, apparatus and procedure for microscopic sizing and counting of particulate contamination of fluid power systems by membrane filtration using microscopic counting.
2017-06-08
WIP Standard
AS5461C
SCOPE IS UNAVAILABLE.
2017-06-08
WIP Standard
AS5460C
SCOPE IS UNAVAILABLE.
2017-06-08
WIP Standard
AS5463C
SCOPE IS UNAVAILABLE.
2017-06-08
WIP Standard
AS5462C
SCOPE IS UNAVAILABLE.
2017-06-08
WIP Standard
AS5459C
SCOPE IS UNAVAILABLE.
2017-06-08
WIP Standard
AS5458C
SCOPE IS UNAVAILABLE.
2017-06-07
WIP Standard
AS8010D
This document defines the minimum degree of purity and maximum levels of certain deleterious impurities allowable for aviator's breathing oxygen at the point of manufacture or generation. It covers gaseous, liquid, and chemically generated oxygen, and oxygen supplied by in situ concentration and in situ electrolysis. Different limits are established for oxygen from different sources, in recognition of differences in the ways the oxygen is stored, dispensed, and utilized, taking into account the safety of the user. These limits are not intended to specifically reflect upon the relative capabilities or merits of various technologies. Procurement documents may specify more stringent limits, where required for specific applications. Medical oxygen is not covered by this standard. In the United States, medical oxygen is a prescription drug.
2017-06-05
Journal Article
2017-01-1762
Michael Roan, M. Lucas Neurauter, Douglas Moore, Dan Glaser
Abstract Hybrid and electric vehicles (HVs and EVs) have demonstrated low noise levels relative to their Internal Combustion Engine (ICE) counterparts, particularly at low speeds. As the number of HVs/EVs on the road increases, so does the need for data quantifying auditory detectability by pedestrians; in particular, those who are vision impaired. Manufacturers have started implementing additive noise solutions designed to increase vehicle detectability while in electric mode and/or when traveling below a certain speed. A detailed description of the real-time acoustic measurement system, the corresponding vehicular data, development of an immersive noise field, and experimental methods pertaining to a recent evaluation of candidate vehicles is provided herein. Listener testing was completed by 24 legally blind test subjects for four vehicle types: an EV and HV with different additive noise approaches, an EV with no additive noise, and a traditional ICE vehicle.
2017-06-05
Technical Paper
2017-01-1889
Todd Tousignant, Kiran Govindswamy, Georg Eisele, Christoph Steffens, Dean Tomazic
Abstract The automotive industry continues to develop new powertrain and vehicle technologies aimed at reducing overall vehicle-level fuel consumption. Specifically, the use of electrified propulsion systems is expected to play an increasingly important role in helping OEM’s meet fleet CO2 reduction targets for 2025 and beyond. Electric and hybrid electric vehicles do not typically utilize IC engines for low-speed operation. Under these low-speed operating conditions, the vehicles are much quieter than conventional IC engine-powered vehicles, making their approach difficult to detect by pedestrians. To mitigate this safety concern, many manufacturers have synthesized noise (using exterior speakers) to increase detection distance. Further, the US National Highway Traffic Safety Administration (NHTSA) has provided recommendations pursuant to the Pedestrian Safety Enhancement Act (PSEA) of 2010 for such exterior noise signatures to ensure detectability.
2017-06-05
Technical Paper
2017-01-1778
Enrico Galvagno, Antonio Tota, Mauro Velardocchia, Alessandro Vigliani
Abstract This paper explores the potentiality of reducing noise and vibration of a vehicle transmission thanks to powertrain control integration with active braking. Due to external disturbances, coming from the driver, e.g. during tip-in / tip-out maneuvers, or from the road, e.g. crossing a speed bump or driving on a rough road, the torsional backlashes between transmission rotating components (gears, synchronizers, splines, CV joints), may lead to NVH issues known as clonk. This study initially focuses on the positive effect on transmission NVH performance of a concurrent application of a braking torque at the driving wheels and of an engine torque increase during these maneuvers; then a powertrain/brake integrated control strategy is proposed. The braking system is activated in advance with respect to the perturbation and it is deactivated immediately after to minimize losses.
2017-06-01
WIP Standard
AIR4250C
This report lists documents that aid and govern the design, development, and utilization of aerospace electronic engine control systems. The report lists the military and industry specifications and standards that are commonly used in electronic engine control system design. However, this list is not necessarily complete. The specifications and standards section has been divided into two parts; a master list arranged numerically and a categorized list that provides a functional breakdown and cross reference of these documents. For specifications and standards, the issue available during the latest revision to this document is listed. Details of current revisions for many documents are available in the Department of Defense Index of Specifications and Standards (DODISS).
2017-06-01
WIP Standard
AS1424H
This SAE Aerospace Standard (AS) covers medium-pressure, high-temperature, flexible, metal-hose assemblies suitable for operation in pneumatic systems up to 800 °F with excursion to 1200 °F for Class “B” and “N” and primarily for use on jet aircraft power plants. Refer to 1.2.1 for recommended usage. 1.1 Types a. Type 1: Convoluted helical inner tube, seamless or welded and redrawn tube material. b. Type 2: Convoluted annular inner tube, seamless or welded and redrawn tube material. c. Type 3: Convoluted helical inner tube, as-welded tube material. d. Type 4: Convoluted annular inner tube, as-welded tube material. NOTE: Unless otherwise specified on a design activity controlled drawing, or contract, Type 1, Type 2, Type 3, or Type 4 inner tube construction may be supplied. 1.2 Classes Hose assemblies furnished under this document may be of the following classes. If no class is defined the class “S” shall be utilized. a.
Viewing 61 to 90 of 17396

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