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Low-Cost and Light-Weight Fireproof Material for Aircraft: Interior, Cargo Compartment and Unit Load Device (Fire and Explosion Container ULD)

Sardou Societe Anonyme-Max Sardou
Published 2019-09-16 by SAE International in United States
Fire is a dramatic issue in aircraft nowadays, especially for composite air craft. An additional issue is the dangerous use of flammable Li-Ion batteries in many devices. To minimize fire issues, it is proposed to produce aircraft interiors, fire doors, cargo bay walls, and cargo containers that are able to contain a fire inside them, with our ceramic composite called TOUGHCERAM®. It is low-cost, ceramic, damage tolerant, and flexible between minus 100°C and plus 350°C. TOUGHCERAM® poly-crystalizes between 20°C and 110°C and can be reinforced with fibers (carbon or basalt). It will survive 90 minutes under direct contact with a propane torch of 1900°C. TOUGHCERAM® does not burn or smoke.This paper will explain how it is possible to develop a fully mineral-ceramic offering with unique mechanical, fire, and blast containment properties.
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3D Numerical Study of Sloshing Attenuation Using Vertical Slotted Barriers

Helwan University Faculty of Engineering-Mohamed Fahmy Younes
Published 2019-07-25 by SAE International in United States
The present study deals with the reduction of fluid vibrations by dissipating the kinetic energy in a closed vibrating container partly filled using vertical slotted obstacles. The effect of the barriers on the liquid vibration inside a closed container exposed to a harmonic excitation is numerically studied. A single vertical slotted barrier (SVSB) and multivertical slotted barrier (MVSB) systems are considered for different liquid levels. The 3D liquid domain with the tank and the barrier as boundaries is modelled and solved numerically using ANSYS-CFX software. The reduction in pressures on the walls and the ceiling of the tank due to the influences of the slot size and numbers were evaluated to optimize the size and the numbers of the slots. The numerical approach shows an ability to simulate the nonlinear behavior of the liquid vibration when using vertical slotted barriers (VSB). The obtained results show that the SVSB is more efficient than the MVSB to decrease the dangers of dynamic impacts of the liquid vibrations inside the container. The system-damping factor depends mainly on the…
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Identification Welding Wire, Tab Marking Method

AMS B Finishes Processes and Fluids Committee
  • Aerospace Material Specification
  • AMS2816W
  • Current
Published 2019-07-15 by SAE International in United States
This specification covers procedures for tab marking of bare welding wire to provide positive identification of cut lengths and spools.
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New and Newly Retreaded Tire Appearance

A-5C Aircraft Tires Committee
  • Aerospace Standard
  • ARP6307A
  • Current
Published 2019-07-02 by SAE International in United States
This document is for establishing and addressing anomalies on appearance of new and newly retreaded tires prior to installation on aircraft. It is intended to use cosmetics as well as functionality to make a determination of acceptability. However, if cosmetic appearance is not a requirement, use the inspection criteria from ARP6225. This ARP does not supersede (E)TSO-C62 minimum requirements, including marking requirements.
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Rubber, Synthetic General Purpose, Fluid Resistant 55 - 65

AMS CE Elastomers Committee
  • Aerospace Material Specification
  • AMS3220H
  • Current
Published 2019-06-11 by SAE International in United States
This specification covers a synthetic rubber in the form of sheet, strip, tubing, extrusions, and molded shapes.
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Heat Resistant Aluminized Paint

AMS G8 Aerospace Organic Coatings Committee
  • Aerospace Material Specification
  • AMS3604A
  • Current
Published 2019-06-11 by SAE International in United States
This specification establishes requirements for a heat resistant aluminized organic coating with sufficient corrosion and erosion resistance for the finished substrate.
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Cork and Rubber Composition Sheet; for Aromatic Fuel and Oil Resistant Gaskets

AMS CE Elastomers Committee
  • Aerospace Material Specification
  • AMSC6183B
  • Current
Published 2019-06-10 by SAE International in United States
This specification covers vulcanized sheet made of granulated cork uniformly dispersed in a synthetic rubber compound, for use in gaskets where aromatic fuel or oil resistance is required (See 6.2).
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Cable, Power, Electrical, Portable General Specification For

AE-8D Wire and Cable Committee
  • Aerospace Standard
  • AS5756B
  • Current
Published 2019-06-07 by SAE International in United States
This specification covers 600 V heavy duty, portable, power, single and multiconductor, electrical cable for severe flexing service (see detail specifications for voltage limitations). The AS5756 insulation system has been used in aerospace ground power applications using 115/200 V (phase to neutral) at 400 Hz AC. Verification of the suitability of this product for use in other electrical system configurations (600 V, etc.) is the responsibility of the user.
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Rubber Synthetic Low-Temperature Resistant 25 - 35

AMS CE Elastomers Committee
  • Aerospace Material Specification
  • AMS3204N
  • Current
Published 2019-05-10 by SAE International in United States
This specification covers a synthetic rubber in the form of sheet, strip, tubing, extrusions, and molded shapes.
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The Differential Braking Steering Control of Special Purpose Flat-Bed Electric Vehicle

Tsinghua University-Yaqi Dai, Liangyao Yu, Jian Song, Wenzong Zhao
Published 2019-04-02 by SAE International in United States
Special purpose flat-bed vehicle is commonly utilized to move heavily items such as containers in warehouse, port and other freight handling scene, the hydraulic steering system have be gradually replaced by electric ones. However, the cost of electric steering system is high for commercial activities. Thus, for some corporates, the differential braking steering strategy becomes an ideal alternative. The purpose of this paper is to present a steering control method for flat-bed electric vehicle based on differential braking system. There are two main components of the control method, steering while moving forward and pivot steering, and each of them was composed by upper layer and executive layer. To evaluate the practicability of the control methods, a 7-DOF flat-bed vehicle model was established in Simulink. According to the simulation results at different load, velocity and steering target, the control method proposed in this paper showed quite well performance and meet the basic demand of handling quality while response rapidly to the control target.
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