Your Selections

Commercial aircraft
Show Only

Collections

File Formats

Content Types

Dates

Sectors

Topics

Authors

Publishers

Affiliations

Committees

Events

Magazine

 

Improving Competitiveness of Additive Manufacturing Aerospace Serial Parts

LISI Aerospace-Maxime Gas, Alexis Rene-Corail, Sebastien Eyrignoux, Guillaume Iker, Stephane Sudre
  • Technical Paper
  • 2019-01-1900
To be published on 2019-09-16 by SAE International in United States
The interest of selective laser melting technology for aerospace parts is very high due to their high complexity and their freedom of design which allow functions integration. However, the competitiveness of Laser Beam Melting (LBM) machines for aerospace industry is limited by two major road blocks. On the one hand, basic parametric set sold with LBM machines are more oriented to historical qualification than productivity rates. For instance, the ongoing qualification on EOS M290 by AIRBUS COMMERCIAL AIRCRAFT only enables us to produce a hundred pieces per machine per year. On the other hand, wasted times between two consecutive manufacturing batches are significant and are impacting the yearly output of the machines. The present project focuses on two activities, focusing on the largest available machines, XLINE2000R and M400, in order to maximize the amount of pieces per build. The first one was the improvement of parametric set productivity, to reduce production time, while keeping material and mechanical properties. We focused on main aerospace materials: titanium alloys, aluminum alloys (Scalmalloy®) and nickel-chromium-based superalloys. The second one…
 

Development of Multi-Material Overhead Stowage Systems for Commercial Aircrafts by Using New Design and Production Methods

3D Systems GmbH-Gunnar Fick
Composite Technology Center / CTC GmbH-Marc Fette
  • Technical Paper
  • 2019-01-1858
To be published on 2019-09-16 by SAE International in United States
The relevance of innovative and functional lightweight components for aircrafts has risen significantly during the recent years. In this context, modern lightweight materials as well as cost-efficient and time-saving manufacturing technologies are required for a future aircraft production. The so called Hybrid SMC Technology and the SMC-Foam-Sandwich Technology are promising approaches for the cost-efficient and time-saving manufacturing of lightweight, geometrically complex and functional aircraft components. Both technologies have been used for the development of a new generation overhead stowage system. It is realized by sidewalls made out of enhanced SMC technologies with directly implemented metallic load introduction elements and regular sandwich structures that can be assembled by a quick-assembly principle. Due to the glass fibers in the shape of chopped long fibers with no predominant direction in SMC material, continuous carbon fiber tailored fiber placement (TFP) fabrics were integrated to increase mechanical properties. Because of several load introduction points in the demonstration part, carbon fiber loops are a good and efficient possibility to transfer these loads. The challenge in the virtual design process of SMC…
 
new

Safety Assessment of General Aviation Airplanes and Rotorcraft in Commercial Service

S-18C ARP5150A and ARP5151A Working Group
  • Aerospace Standard
  • ARP5151A
  • Current
Published 2019-08-20 by SAE International in United States

This document describes a process that may be used to perform the ongoing safety assessment for (1) GAR aircraft and components (hereafter, aircraft), and (2) commercial operators of GAR aircraft. The process described herein is intended to support an overall safety management program. It is to help a company establish and meet its own internal standards. The process described herein identifies a systematic means, but not the only means, to assess continuing airworthiness.

 

NRC Particle Detection Probe: Results and Analysis from Ground and Flight Tests

National Research Council Canada-Craig Davison, Jennifer Chalmers, Dan Fuleki
Published 2019-06-10 by SAE International in United States
High altitude ice crystals are causing in-service events in excess of one per month for commercial aircraft. The effects include air data probes malfunctioning (pitot pressure and total air temperature in particular), and uncommanded engine power loss or flameout events. The National Research Council Canada (NRC) has developed a particle detection probe (PDP) that mounts on the fuselage of aircraft to sense and quantify the ice crystals in the environment. The probe is low-power and non-intrusive. This paper presents the results of ground and flight testing of this probe. Results are presented for ground testing in a sea level ice crystal wind tunnel and an altitude icing tunnel capable of generating both ice crystal and super-cooled liquid. The PDP was operated on several flight campaigns and the results of two will be presented. The first was on board a NRC Convair 580 aircraft in French Guiana (FG) and the second was on an Airbus operated A340 research aircraft in Darwin and Reunion Island. The flight campaigns included fully glaciated, mixed phase and fully liquid conditions.…
Datasets icon
Annotation icon
 

How Dual Polarization Technique May Improve Weather Radar on Commercial Aircraft

NOVIMET-Jacques Victor Testud, Emmanuel Moreau, Erwan Le Bouar
Published 2019-06-10 by SAE International in United States
The airborne weather radar on a commercial aircraft is essential to ensure flight safety. It is able to detect severe weather, probable areas where presence of hail may be suspected, and thanks to its Doppler capability, the wind shears that may be dangerous when taking-off or landing. However, because it operates at X-band, the picture that it offers to the pilot may be seriously biased in situation of severe weather, in reason of the attenuation of the radar wave.The adoption of the dual pol technique in this weather radar would be most beneficial for the quality of the information delivered to the pilot for the following reasons:1Dual pol technique allows to operate a classification of the precipitation: distinguishing rain, melting layer, snow, hail, small ice particles.2Dual pol technique allows correcting the return signal for attenuation in rain.The paper aims reporting recent advances in the exploitation of dual pol radar data, based on the concept of normalisation of the particle size distribution (PSD) and on ZPHI® algorithm for precipitation retrieval. Their combination helps retrieving parameter N0*…
Datasets icon
Annotation icon
 

The World of Civil Aerospace

IVHM Centre Cranfield University-Ian K. Jennions
  • Book
  • R-468
Published 2019-05-28 by SAE International in United States
Collaboratively written by eleven experts with extensive experience in the field of commercial aviation, The World of Civil Aerospace is a unique book that defines its own category. Covering the beginnings of commercial aviation, aircraft design and certification, manufacturing and testing, airline operation, maintenance and safety, among other topics, The World of Civil Aerospace shows the reader the fundamental (yet almost invisible) aspects of how the planes and airports we use every day actually function. The title, edited by Prof. Ian Jennions, from Cranfield University in the UK, came about from the desire to share the inner workings of what it takes to create, test, approve, certify and launch a new aircraft. Not mention how to maintain it and make the user experience of flying it positive. With the commercial aviation industry expected to continue to grow for decades to come, the challenges of keeping aircraft in the air safely, reliably and economically are enormous. Thousands of engineers, support personnel, maintainers and crews go to work every day with one goal in mind: to make…
Annotation icon
 

Aerospace Fuel System Specifications and Standards

AE-5A Aerospace Fuel, Inerting and Lubrication Sys Committee
  • Aerospace Standard
  • AIR1408B
  • Current
Published 2019-05-24 by SAE International in United States
This report lists documents that aid and govern the design of aircraft and missile fuel systems. The report lists the military and industry specifications and standards and the most notable design handbooks that are commonly used in fuel system design. Note that only the principle fuel specifications for the U.S. and Europe (Military Specifications, ASTM, and Def Stan) have been included within this report. The specifications and standards section has been divided into two parts: a master list arranged numerically of all industry and military specifications and standards, and a component list that provides a functional breakdown and a cross-reference of these documents. It is intended that this report be a supplement to specifications ARP8615, MIL-F-17874, and JSSG 2009. Revisions and amendments which are correct for the specifications and standards are not listed. The fuel system design handbooks are listed for fuels and for system and component design.
Datasets icon
Annotation icon
 

Landing Gear Structural Health Monitoring

A-5 Aerospace Landing Gear Systems Committee
  • Aerospace Standard
  • AIR6168A
  • Current
Published 2019-05-23 by SAE International in United States
This SAE Aerospace Information Report (AIR) discusses past and present approaches for monitoring the landing gear structure and shock absorber (servicing), opportunities for corrosion detection, methods for transient overload detection, techniques for measuring the forces seen by the landing gear structure, and methods for determining the fatigue state of the landing gear structure. Landing gear tire condition and tire pressure monitoring are detailed in ARP6225, AIR4830, and ARP6137, respectively. Aircraft Brake Temperature Monitoring Systems (BTMS) are detailed in AS1145.
Datasets icon
Annotation icon
 

Clamp Selection and Installation Guide

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
  • Aerospace Standard
  • ARP1897A
  • Current
Published 2019-05-20 by SAE International in United States
This document is prepared as an aid in the selection of clamping devices and their use in aerospace equipment for the installation and support of tubing and wiring. For recommended installation practices, refer to ARP994.
Datasets icon
Annotation icon
 

Requirements Document for Sensor/Video Interconnect Subsystems with Rationale

AS-1C Avionic Subsystems Committee
  • Aerospace Standard
  • AIR4911A
  • Current
Published 2019-05-14 by SAE International in United States
The purpose of this document is to establish the requirements for sensor/video interconnect subsystems. These requirements have been driven predominantly, but not exclusively, by aerospace-type military platforms and commercial aircraft. These requirements are intended to be used as the criteria to establish a sensor/video interconnection standard that will foster the development of common hardware to simplify the total interconnectivity of future avionics platforms.
Datasets icon
Annotation icon