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Standard

Highly Accelerated Failure Test (HAFT) for Automotive Lamps with LED Assembly

2018-05-20
CURRENT
J3014_201805
This SAE Recommended Practice provides test procedures, requirements, and equipment recommendations for the methods of the measurement that characterizes potential design failures by utilizing a step stress approach to subject a device under test to thermal, vibration, and electrical stresses of types and levels beyond what it may see in actual use, but which will rapidly induce failure modes, allowing them to be detected and corrected.
Standard

Aircraft Tire Wear Profile Development and Execution for Laboratory Testing

2018-05-18
WIP
AIR5797A
This SAE Aerospace Information Report (AIR) describes the current process for performing comparative wear testing on aircraft tires in a laboratory environment. This technique is applicable to both radial and bias tires, and is pertinent for all aircraft tire sizes. This AIR describes a technique based upon "wear" energy. In this technique, side wear energy and drag wear energy are computed as the tire is run through a prescribed test program. The specifics that drive the test setup conditions are discussed in Sections 4 through 7. In general, the technique follows this process: - A test profile is developed from measured mechanical property data of the tires under study. - Each tire is repeatedly run to the test profile until it is worn to the maximum wear limit (MWL). Several tires, typically 5 to 10, of each tire design are tested. - Wear energy is computed for each test cycle and then summed to determine total absorbed wear energy. - An index is calculated for each tire design.
Standard

Aerospace Hydraulic Fluids Physical Properties

2018-05-17
WIP
AIR1362D

This SAE Aerospace Information Report (AIR) presents data on hydraulic fluids which are of interest to detail designers of hydraulic systems and components for aerospace flight vehicles.

The data pertains to fluids conforming to the following specifications:

- MIL-PRF-5606

- MIL-H-8446

- MIL-PRF-27601 (canceled) MIL-PRF-27601 has been canceled without replacement and the data presented herein is for information purposes only.

- MIL-PRF-83282

- MIL-H-53119

- MIL-PRF-87257

- AS1241 Type IV, Classes 1 and 2, and Type V

Standard

Model Based Functional Safety

2018-05-17
WIP
SAE1005
Provides standard guidance on major tasks and activities and how to implement and manage Functional Safety and software system safety aspects of Model Based System Engineering (MBSE). Process focus is on safety-critical functions (SCF) of complex software intensive systems being modeled and depicted graphically as part of MBSE and software engineering to ensure safety engineering aspects are tracked and captured as part of models to enhance safety documentation and produce objective safety evidence.
Standard

Air Cargo Lashing Line

2018-05-16
WIP
AS8995
This standard defines the minimum performance and test requirements for air cargo lashing line. Air cargo lashing line may be used for repair, replacement, or tensioning on an air cargo net approved in accordance with NAS3610 or AS36100 (TSO-C90) where approved by the net manufacturer in the net's Component Maintenance Manual or equivalent document. Air cargo lashing line may be used on cargo to stabilize or prevent the shift of the cargo when the air cargo lashing line is used underneath a net or inside of a container that meets the requirements of TSO-C90. Air cargo lashing line may be used within an aircraft’s bulk cargo compartment for cargo stabilization and shift prevention when that use is not limited by the aircraft’s Weight and Balance Manual. Air cargo lashing line must not be as a replacement for an air cargo strap that provides primary restraint of cargo to an aircraft or pallet.
Standard

Internal Combustion Engines - Piston Ring-Grooves

2018-05-16
CURRENT
J2275_201805
There is no ISO standard equivalent to this SAE Standard. This SAE standard identifies and defines the most commonly used terms for piston ring-groove characteristics, specifies dimensioning for groove widths, and demonstrates the methodology for calculation of piston groove root diameter. The requirements of this document apply to pistons and rings of reciprocating internal combustion engines and compressors working under analogous conditions, up to and including 200 mm diameter and 4.5 mm width for compression rings and 8.0 mm width for oil rings. The specifications in this document assume that components are measured at an ambient temperature of 20 °C (68 °F). Tolerances specified in this document represent practical functional limits and do not imply process capabilities.
Standard

Low Speed Enveloping Test with Perpendicular and Inclined Cleats

2018-05-16
CURRENT
J2731_201805
This SAE Recommended Practice describes a test method for measuring the forces and moments generated at a spindle when a tire rolls over a rectangular obstacle, cleat, at very low speed. The cleat used in a particular test condition is configured with its crest either perpendicular, 90 degrees, to the path of the tire or optionally with its crest inclined at an angle to the path of the tire. The carriage to which the spindle is attached is rigidly constrained in position during each test condition so as to provide a good approximation to fixed loaded radius operation. The method discussed in this document provides cleat envelopment force and moment and tire angular position histories as functions of distance traveled. These histories are essentially free from variations due to tire non-uniformities. The method applies to any size tire so long as the equipment is properly scaled to conduct the measurements for the intended test tire.
Standard

Tests to Define Tire Size (Geometry), Mass, and Inertias

2018-05-16
CURRENT
J2717_201805
This SAE Recommended Practice describes a trio of test methods which determine basic tire size (geometry), mass, and moments of inertia. The methods apply to any tire so long as the equipment is properly scaled to conduct the measurements for the intended test tire. The data are suitable for determining parameters for road load models and for comparative evaluations of the measured properties in research and development. NOTE: Herein, road load models are models for predicting forces applied to the vehicle spindles during operation over irregular surfaces paved or unpaved. Within the context of this Recommended Practice, forces applied to the surface on which the tire is operating are not considered.
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