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Power Quality Test Data Analysis for Aircraft Subsystem

UTC Aerospace Systems, India-Shobha Ramanjani
  • Journal Article
  • 01-11-02-0008
Published 2018-12-21 by SAE International in United States
Aircraft subsystem development involves various combinations of testing and qualification activities to realize a flight-worthy system. The subsystem needs to be verified for a massive number of customer requirements. Power quality (PQ) test is also an important testing activity carried out as part of the environmental qualification test. It is intended to verify the functionality of subsystems with various kinds of power disturbances and to determine the ability of a subsystem to withstand PQ disturbances. The subsystem being designed should be reliable enough to handle PQ anomalies. A PQ test results in an enormous amount of data for analysis with millions of data samples depending on the test and can be identified as big data. The engineer needs to analyze each set of test data as part of post-processing to ensure the power disturbances during testing are as per the standard requirements and that the functional performance of the subsystem is met. Manually analyzing the test data with classical methods and generating the report requires more time and effort, as millions of test data samples…
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Steel, Corrosion and Heat-Resistant, Bars, Wire, Forgings, Tubing, and Rings, 12Cr, Ferrite Controlled, Annealed

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5612K
  • Current
Published 2018-12-20 by SAE International in United States

This specification covers an aircraft quality, corrosion and heat-resistant steel in the form of bars, wire, forgings, mechanical tubing, flash welded rings, and stock for forging or flash welded rings.

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Improving Vehicle Rollover Resistance Using Fuzzy PID Controller of Active Anti-Roll Bar System

Arab Academy for Science, Technology and Maritime Transport, Egypt-Mostafa R.A. Atia
Egypt-Mohamed Mostafa Khalil
  • Journal Article
  • 06-12-01-0003
Published 2018-12-20 by SAE International in United States
The active anti-roll bar (AARB) system in vehicles has recently become one of the research hotspots in the field of vehicle technology to improve the vehicle’s active safety. In most off-road vehicles, high ground clearance is required while keeping all wheels in contact with the ground in order to improve traction and maintain load distribution among the wheels. A problem however arises in some types of the off-road vehicles when the vehicle is operated at high speeds on smooth roads. In such condition, the combination of the vehicle’s center of gravity position, large suspension stroke, and soft spring construction creates a stability problem, which could make the vehicle liable to rollover. This article analyzes a comparison of stability performance between passive and active anti-roll bar systems to improve rolling resistance. For active systems, two control strategies will be investigated. The conventional PID controller is firstly investigated and taken as a reference. Then a modified PID controller with fuzzy technology is developed and compared to the reference one. A full-car model of 14-degrees of freedom (DOF)…
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Identification Bars, Wire, Mechanical Tubing, and Extrusions, Carbon and Alloy Steels, and Corrosion and Heat-Resistant Steels and Alloys

AMS B Finishes Processes and Fluids Committee
  • Aerospace Material Specification
  • AMS2806D
  • Current
Published 2018-12-20 by SAE International in United States

This specification covers procedures for identifying bars, wire, mechanical tubing, and extrusions of carbon and alloy steels and corrosion and heat-resistant steels and alloys.

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Steel, Corrosion and Heat-Resistant, Bars, Wire, Forgings, Mechanical Tubing, and Rings, 25Cr - 20Ni (310), Solution Heat Treated

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5651K
  • Current
Published 2018-12-20 by SAE International in United States

This specification covers a corrosion and heat-resistant steel in the form of bars, wire, forgings, mechanical tubing, flash welded rings, and stock for forging or flash welded rings.

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Medium/Heavy-Duty E/E Systems Diagnosis Nomenclature

Truck Bus Control and Communications Network Committee
  • Ground Vehicle Standard
  • J2403_201812
  • Current
Published 2018-12-19 by SAE International in United States

This SAE Recommended Practice is applicable to all E/E systems on MD and HD vehicles. The terms defined are largely focused on compression-ignited and spark-ignited engines. Specific applications of this document include diagnostic, service and repair manuals, bulletins and updates, training manuals, repair data bases, under-hood emission labels, and emission certification applications.

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Electroless Nickel-Boron Plating

AMS B Finishes Processes and Fluids Committee
  • Aerospace Material Specification
  • AMS2399B
  • Current
Published 2018-12-19 by SAE International in United States

This specification covers the engineering requirements for electroless deposition of nickel-boron on various materials and the properties of the deposit.

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Hose Assembly, Polytetrafluoroethylene, Metallic Reinforced, Up to 1500 psi and 450 °F, Hydraulic and Pneumatic

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
  • Aerospace Standard
  • AS1946F
  • Current
Published 2018-12-19 by SAE International in United States

This SAE Aerospace Standard (AS) defines the requirements for polytetrafluoroethylene (PTFE) lined, metallic reinforced, hose assemblies suitable for use in aerospace hydraulic, fuel, and lubricating oil systems at temperatures between 67 °F and 450 °F for Class I assemblies, -67 °F and 275 °F for Class II assemblies, and at nominal pressures up to 1500 psi. The hose assemblies are also suitable for use within the same temperature and pressure limitations in aerospace pneumatic systems where some gaseous diffusion through the wall of the PTFE liner can be tolerated.

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Bearing, Roller, Needle, Track Roller, Integral Stud, Sealed, Type VIII, Antifriction, Inch

ACBG Rolling Element Bearing Committee
  • Aerospace Standard
  • AS21440B
  • Current
Published 2018-12-19 by SAE International in United States

Scope is unavailable.

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Validating Requirements and Improving Specifications with Telematics Data

  • Professional Development
  • C1897
Published 2018-12-19

Field failures cause high warranty expenses, perhaps the highest quality cost. Failures occur when new designs are introduced, existing products are sold in new markets, and product specifications don’t reflect actual product usage. Any mistake in product specifications affects the entire product development process and cascades through the supply chain.