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Simulation of Aircraft Assembly via ASRP Software

Airbus-Elodie Bonhomme
Peter the Great St. Petersburg Polytechnic University-Nadezhda Zaitseva, Tatiana Pogarskaia, Olga Minevich, Julia Shinder
  • Technical Paper
  • 2019-01-1887
To be published on 2019-09-16 by SAE International in United States
ASRP (Assembly Simulation of Riveting Process) software is a special tool for modelling assembly process for large scale airframe parts. On the base of variation simulation, ASRP provides a convenient way to analyze, verify and optimize the arrangement of temporary fasteners. During the airframe assembly process certain criteria on the residual gap between parts must be fulfilled. The numerical approach realized in ASRP allows one to evaluate the quality of contact on every stage of the assembly process and solve verification and optimization problems for temporary fastener patterns. The paper is devoted to description of several specialized approaches that combine statistical analysis of measured data and numerical simulation using high-performance computing for optimization of fastener patterns, calculation of forces in fasteners needed to close initial gaps and identification of hazardous areas in junction regions.
 

Possibilities of Wall Heat Transfer Measurements at a Supercharged Euro IV Heavy-Duty Diesel Engine with High EGR-Rates, an In-cylinder Peak Pressure of 250 bar and an Injection Pressure up to 2500 bar

Daimler AG-Christian Hennes, Jürgen Lehmann
KIT Karlsruhe Institute Of Technology-Thomas Koch
  • Technical Paper
  • 2019-24-0171
To be published on 2019-09-09 by SAE International in United States
A raise of efficiency is, especially for CV, the strongest selling point concerning the TCO. Accompanied by legislations, with contradictive development demands, satisfying solutions have to be found. The analysis of energy losses in modern engines shows three influencing parameters. The losses resulting from taking real gas properties and non-ideal combustion into account have only a limited potential for gains, wall heat losses are currently believed to have the highest optimization potential. Critical for the occurrence of these losses is the wall heat transfer, which can be described by coefficients. To reduce WHT accompanying losses a decrease of energy transfer between combustion gas and combustion chamber wall is necessary. A measurement of heat fluxes is needed to determine the WHT relations at the combustion chamber of an engine. Methods to reduce the WHT can be developed and their effectiveness can be evaluated. As this is not done before for a heavy-duty engine, with peak pressures up to 250 bar, an increased in-cylinder turbulence and high EGR-rates is presented the following. The different methods to determine…
 
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Alloy, Corrosion and Heat-Resistant, Bars, Forgings, and Rings 34Co - 3.0Cr - 28Ni - 3.0Cb(Nb) - 5.5Al - 0.008B - 25.5Fe Multiple Melted, High Temperature, Oxidation-Resistant, Low Expansion Solution Heat Treated, Precipitation-Hardenable

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5940D
  • Current
Published 2019-07-31 by SAE International in United States
This specification covers a cobalt-nickel-iron alloy in the form of bars, forgings, flash welded rings, and stock for forging, flash welded rings, or heading.
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Steel Castings, Sand, Corrosion and Heat Resistant 24.5Cr - 20.5Ni Solution Heat Treated

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5365E
  • Current
Published 2019-07-30 by SAE International in United States
This specification covers a corrosion and heat resistant steel in the form of sand castings.
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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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MALE FERRULE, THREADLESS, - FLEXIBLE, FIXED CAVITY, CURRENT CARRYING, SELF BONDING, SWAGED

G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
  • Aerospace Standard
  • AS7513A
  • Current
Published 2019-07-08 by SAE International in United States
No Abstract Available.
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PLUG, EXPANSION - CRES, 303, LONG, STD AND .010 OVERSIZE DIAMETERS, UNS S30300

E-25 General Standards for Aerospace and Propulsion Systems
  • Aerospace Standard
  • AS3129C
  • Current
Published 2019-07-01 by SAE International in United States
No Abstract Available.
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TERMINAL BOARD ASSEMBLY, MOLDED-IN-STUD, ELECTRIC

AE-8C2 Terminating Devices and Tooling Committee
  • Aerospace Standard
  • AS27212D
  • Current
Published 2019-06-25 by SAE International in United States
No Abstract Available.
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NUT, SLOTTED, HEXAGON, SHEAR - SILVER PLATED, UNS S66286, 130 KSI MIN

E-25 General Standards for Aerospace and Propulsion Systems
  • Aerospace Standard
  • AS9364B
  • Current
Published 2019-06-20 by SAE International in United States
No Abstract Available.
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NUT, SLOTTED, HEXAGON, SHEAR - UNS S66286, 130 KSI MIN

E-25 General Standards for Aerospace and Propulsion Systems
  • Aerospace Standard
  • AS9363B
  • Current
Published 2019-06-20 by SAE International in United States
No Abstract Available.
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