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Viewing 31 to 60 of 8783
CURRENT
2017-07-06
Standard
AIR6297
This document describes a method to calculate noise level adjustments at locations behind an airplane (described by an angular offset or directivity) at the start of takeoff roll (SOTR). This method is derived from empirical data from jet aircraft (circa 2004), most of which are configured with wing-mounted engines with high by-pass ratios (Lau, et al., 2012). Methods are also described which apply to modern turboprop aricraft.
CURRENT
2017-07-06
Standard
AS21911D
SCOPE IS UNAVAILABLE.
CURRENT
2017-07-05
Standard
AS4688C
(A) Propose to replace .5625-16 UNJF with .5625-18 UNJF on Table 3 and other editorial changes (ex. replace ARP4296 with AS4296). (B) Propose revision to add conductive high purity aluminum coating per MIL-DTL-83488 for aluminum alloy fittings. The W code aluminum parts with new finish will be distinguished by new finish code V at the end of part number.
2017-06-30
WIP Standard
AIR7975
Generic overview of fuel system design and sizing, and guidelines for installation of various fuel system elements
2017-06-28
WIP Standard
J2907
This document was developed to provide a method of obtaining repeatable measurements that accurately reflects the performance of a propulsion electric drive subsystem, whose output is used in an electrified vehicle regardless of complexity or number of energy sources. The purpose is to provide a familiar and easy-to-understand performance rating. Whenever there is an opportunity for interpretation of the document, a good faith effort shall be made to obtain the typical in-service performance and characteristics and avoid finding the best possible performance under the best possible conditions. Intentional biasing of operating parameters or assembly tolerances to optimize performance for this test shall not be considered valid results in the scope of this document.
CURRENT
2017-06-28
Standard
AS21906D
SCOPE IS UNAVAILABLE.
CURRENT
2017-06-28
Standard
AS21909E
SCOPE IS UNAVAILABLE.
CURRENT
2017-06-28
Standard
AS21912D
SCOPE IS UNAVAILABLE.
CURRENT
2017-06-28
Standard
AS21914D
Scope unavailable.
2017-06-27
WIP Standard
J643
The range of test conditions on the dynamometer shall be sufficient to determine the primary operating characteristics corresponding to the full range of vehicle operations. The characteristics to be determined are: a. Torque ratio versus speed ratio and output speed b. Input speed versus speed ratio and output speed c. Efficiency versus speed ratio and output speed d. Capacity factor versus speed ratio and output speed e. Input torque versus input speed
2017-06-27
WIP Standard
J646
Figures 1 to 5 illustrate in simplified form some of the more common planetary gear arrangements in order to establish applicable terminology. Gear ratio is the numerical ratio of input to output speed.
2017-06-27
WIP Standard
J139
To provide standard terminology and definitions with regard to ignition systems for spark-ignited internal combustion engines.
2017-06-26
WIP Standard
ARP6481
This SAE Aerospace Recommended Practice (ARP) describes a method for assessing size dependent particle losses in a sampling and measurement system of specified geometry utilizing on the non-volatile PM (nvPM) mass and number concentrations measured at the end of the sampling system. The penetration functions of the sampling and measurement system may be determined either by measurement or by analytic computational methods. Loss mechanisms including thermophoretic (which has a very weak size dependence) and size dependent losses are considered in this method along with the uncertainties due to both measurement error and the assumptions of the method. The results of this system loss assessment allow development of estimated correction factors for nvPM mass and number concentrations to account for the system losses facilitating estimation of the nvPM mass and number at the engine exhaust nozzle exit plane.
CURRENT
2017-06-26
Standard
J1342_201706
The techniques outlined in this SAE Recommended Practice were developed as part of an overall program for determining and evaluating fuel consumption of heavy-duty trucks and buses, but it is applicable to off highway vehicles as well. It is recommended that the specific operating conditions be carefully reviewed on the basis of actual installation data. Cooling requirements are affected by all heat exchangers that are cooled by the fan drive system. These may include radiators, condensers, charge air coolers, oil coolers, and others. Because of the variation in size, shape, configuration, and mountings available in cooling fans and fan drive systems, specific test devices have not been included. Using known power/speed relationships for a given fan, this procedure can be used to calculate the fan drive system’s power consumption for engine cooling systems using fixed ratio, viscous or speed modulating, and mechanical on/off fan drives including electronically activated fan drives.
2017-06-22
WIP Standard
J2711/2
This SAE Recommended Practice was established to provide an accurate, uniform and reproducible procedure for simulating use of MD/HD conventional vehicles and hybrid-electric vehicles (HEVs), as well as plug-in hybrid-electric vehicles (PHEVs) and battery electric vehicles (BEVs) on powertrain dynamometers for the purpose of measuring emissions and fuel economy. This document does not specify which emissions constituents to measure (e.g., HC, CO, NOx, PM, CO2), as that decision will depend on the objectives of the tester. While the main focus of this procedure is for calculating fuel and energy consumption, it is anticipated that emissions may also be recorded during execution of this procedure. It should be noted that most MD/HD powertrains addressed in this document would be powered by engines that are certified separately for emissions. The engine certification procedure appears in the Code of Federal Regulations, Title 40-§86 and §1065.
CURRENT
2017-06-22
Standard
AS893E
To Stabilize AS893D - issued 1-15-76 per MIL-F-18280 for O2 and GSE only; revised 4 times (12-1-83 to add O2 cleaning requirement and part id note, 1995-12 to reformat to SAE template and revised title, 2008-03 to add cad note, change proc spec to AS4842/2 and associated QML requirements, update matl inactive/can'd specs to active ones, revised wrench flat tolerances, and inactivated 'D' matl for new design, 2009-11 to update to current SAE template along with Table updates and add 'D' inactive effectivity date; reaffirmed twice; April 1983 & 2007-08. No other significant changes to the standard.
2017-06-22
WIP Standard
AS4200B
SCOPE IS UNAVAILABLE.
2017-06-21
WIP Standard
AIR1419C
This document addresses many of the significant issues associated with effects of inlet total-pressure distortion on turbine-engine performance and stability. It provides a review of the development of techniques used to assess engine stability margins in the presence of inlet total-pressure distortion. Specific performance and stability issues that are covered by this document include total-pressure recovery and turbulence effects and steady and dynamic inlet total-pressure distortion.
CURRENT
2017-06-21
Standard
AS4665C
SCOPE IS UNAVAILABLE.
CURRENT
2017-06-21
Standard
AS897E
SCOPE IS UNAVAILABLE.
CURRENT
2017-06-21
Standard
AS4664D
SCOPE IS UNAVAILABLE.
CURRENT
2017-06-21
Standard
AS5230D
SCOPE IS UNAVAILABLE.
CURRENT
2017-06-21
Standard
AS1004G
SCOPE IS UNAVAILABLE.
CURRENT
2017-06-21
Standard
AS1007K
SCOPE IS UNAVAILABLE.
2017-06-21
WIP Standard
AS5188C
SCOPE IS UNAVAILABLE.
CURRENT
2017-06-21
Standard
AS1008J
SCOPE IS UNAVAILABLE.
CURRENT
2017-06-20
Standard
AS33931C
SCOPE IS UNAVAILABLE.
CURRENT
2017-06-19
Standard
J1335_201706
Applies to hydraulic cylinders which are components of Off-Road Self-Propelled Work Machines defined in SAE J1116.
2017-06-19
WIP Standard
J2836/6
This SAE Information Report SAE J2836/6™ establishes use cases for communication between plug-in electric vehicles and the EVSE, for wireless energy transfer as specified in SAE J2954. It addresses the requirements for communications between the on-board charging system and the Wireless EV Supply Equipment (WEVSE) in support of detection of the WEVSE, the charging process, and monitoring of the charging process. Since the communication to the charging infrastructure and the power grid for smart charging will also be communicated by the WEVSE to the EV over the wireless interface, these requirements are also covered. However, the processes and procedures are expected to be identical to those specified for V2G communications specified in SAE J2836/1. Where relevant, the specification notes interactions that may be required between the vehicle and vehicle operator, but does not formally specify them.
2017-06-19
WIP Standard
J2847/6
This SAE Recommended Practice SAE J2847-6 establishes requirements and specifications for communications messages between wirelessly charged electric vehicles and the wireless charger. Where relevant, this document notes, but does not formally specify, interactions between the vehicle and vehicle operator. This is the 1st version of this document and captures the initial objectives of the SAE task force. The intent of step 1 is to record as much information on “what we think works” and publish. The effort continues however, to step 2 that allows public review for additional comments and viewpoints, while the task force also continues additional testing and early implementation. Results of step 2 effort will then be incorporated into updates of this document and lead to a republished version. The next revision will address the harmonization between SAE J2847-6 and ISO/IEC 15118-7 to ensure interoperability.
Viewing 31 to 60 of 8783

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