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Viewing 1 to 30 of 721
2014-04-01
Journal Article
2014-01-1018
Robert V. Petrach, David Schall, Qian Zou, Gary Barber, Randy Gu, Laila Guessous
Coatings have the potential to improve bearing tribological performance. However, every coating application process and material combination may create different residual stresses and coating microstructures, and their effect on bearing fatigue and wear performance is unclear. The aim of this work is to investigate coating induced residual stress effects on bearing failure indicators using a microstructural contact mechanics (MSCM) finite element (FE) model. The MSCM FE model consists of a two-dimensional FE model of a coated bearing surface under sliding contact where individual grains are represented by FE domains. Interactions between FE domains are represented using contact element pairs. Unique to this layered rolling contact FE model is the use of polycrystalline material models to represent realistic bearing and coating microstructural behavior. The MSCM FE model was compared to a second non-microstructural contact mechanics (non-MSCM) model.
2017-05-03
WIP Standard
AIR6952
The pupose of this SAE AIR is to provide guidelines for sizing stored energy systems in use in emergency braking systems, in light of their intended purpose and applicable certification regulations.
2013-03-11
WIP Standard
AIR5567B
The scope of the test method is to provide stakeholders including fluid manufacturers, brake manufacturers, aircraft constructors, aircraft operators and airworthiness authorities with a relative assessment of the effect of deicing chemicals on carbon oxidation. This simple test is only designed to assess the relative effects of runway deicing chemicals by measuring mass change of contaminated and bare carbon samples tested under the same conditions. It is not possible to set a general acceptance threshold oxidation limit based on this test method because carbon brake stack oxidation is a function of heat sink design and the operating envirnoment.
2013-10-21
WIP Standard
AIR6280
This Aerospace Information Report will summarize several existing aircraft landing gear shimmy analysis techniques and provide guidance on the synthesis and testing of tire properties, strut properties, and other landing gear mechanical properties that support the various shimmy analysis methods. This AIR is applicable to large and small fixed wing and rotary wing aircraft for military or civilian use.
2016-03-15
WIP Standard
AIR6411
Provide information and guidance for landing gear operation in cold temperature environment. Covers all operational aspects on ground and in flight. Includes effects on: tires, wheels, brakes, shock strut, seals, and actuation.
2015-12-03
WIP Standard
AIR1594D
This document is intended to give advisory information for the selection of plain bearings and bearing materials most suitable for aircraft landing gear applications. Information included herein was derived from bearing tests and service experience/reports. Airframe/landing gear manufacturers, commercial airlines, the U.S. Air Force and Naval Air Systems Command provided input for the document.
HISTORICAL
1942-01-01
Standard
AMS4815
This specification covers bearings of low-carbon steel plated on one or both faces with silver.
HISTORICAL
1992-01-01
Standard
AMS4815F
This specification covers bearings of low-carbon steel plated on one or both faces with silver.
CURRENT
2007-02-02
Standard
AMS4815G
This specification covers bearings of low-carbon steel plated on one or both faces with silver.
HISTORICAL
1986-10-01
Standard
AMS4815E
This specification covers bearings of low-carbon steel plated on one or both faces with silver.
HISTORICAL
1981-10-01
Standard
AMS4815D
This specification covers bearings of low-carbon steel plated on one or both faces with silver.
HISTORICAL
1951-06-01
Standard
AMS4815C
This specification covers bearings of low-carbon steel plated on one or both faces with silver.
HISTORICAL
1946-01-01
Standard
AMS4815B
This specification covers bearings of low-carbon steel plated on one or both faces with silver.
HISTORICAL
1944-03-01
Standard
AMS4815A
This specification covers bearings of low-carbon steel plated on one or both faces with silver.
CURRENT
2006-08-03
Standard
AMS4825D
This specification covers bearings of a leaded bronze cast on one or both faces of a steel backing.
HISTORICAL
1994-04-01
Standard
AMS4825C
HISTORICAL
1941-09-01
Standard
AMS4825
This specification covers bearings of a leaded bronze cast on one or both faces of a steel backing.
HISTORICAL
1951-06-01
Standard
AMS4825B
HISTORICAL
1945-10-01
Standard
AMS4825A
This specification covers bearings of a leaded bronze cast on one or both faces of a steel backing.
2014-10-29
WIP Standard
ARP6307
This document is for establishing and addressing anomalies on appearance of new and newly retreaded tires.
2016-03-17
WIP Standard
ARP6412
The scope of the Landing Gear Integrity Programs (LGIP) Aerospace Recommended Practice (ARP) is intended to assist in the safe-life structural integrity management of the landing gear system and subsystems components. In addition, component reliability, availability, and maintainability is included in a holistic LGIP.
2016-10-10
WIP Standard
ARP6910
This ARP would pull together lessons learned and point to the different documents that have information on rod end locking devices.
2017-05-02
WIP Standard
ARP6951
Identify best practices to reduce tire damage during storage, shipping and handling.
2014-09-25
WIP Standard
ARP5483/3B
This test method outlines the standard procedure for measuring the radial and axial internal clearance of rolling element bearings used in airframe controls.
2016-11-03
WIP Standard
AIR6805
This document will outline existing best practices in the instrumentation of landing gears for in-service operation (including flight test, operational loads monitoring, etc.).
CURRENT
2015-09-10
Standard
AMS6477C
This specification covers a low-alloy steel in the form of bars, forgings, mechanical tubing, and forging stock.
Viewing 1 to 30 of 721

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