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2014-11-11
Technical Paper
2014-32-0026
Alessandro Franceschini, Emanuele Pellegrini, Raffaele Squarcini
Abstract Nowadays the challenge in design of auxiliary devices for automotive small engines is focused on packaging reduction and on the increase of the performance. These requirements are in contrast to each other and in order to fulfil the project specifications, new and more refined design tools and procedures need to be developed. This paper presents a calculation loop developed by Pierburg Pump Technology Italy S.p.A. (PPT). It supports the design of a variable displacement oil pump component for engine applications. The work is focused on the fatigue life evaluation of a joint, which transmits the drive torque from the engine to the oil pump. The aim of the procedure is to calculate the onset of the surface fatigue phenomenon in the hexagonal joint which drives the oil pump, taking into account the axes misalignment and the flat-to-flat clearance. The study has involved several matters, experimental measures, CFD, MBA and FEM analyses.
2014-11-11
Standard
AS5971C
SCOPE IS UNAVAILABLE
2014-11-10
WIP Standard
AS28937A
No scope available.
2014-11-10
WIP Standard
AS28938A
No scope available.
2014-11-07
WIP Standard
AS49011A
No scope available.
2014-11-07
Standard
AMS3305J
This specification covers a silicone rubber in the form of sheet, strip, tubing, extrusions, and molded shapes. Primarily for parts required to operate or seal from -65 to +205 degrees C (-85 to +401 degrees F). Silicone elastomer is resistant to deterioration by weathering and petroleum-base lubricating oil and remains flexible over the temperature range noted. These products are not normally suitable for use in contact with gasoline or aromtic fuels and low-aniline-point petroleum-base fluids due to excessive swelling of the elastomer.
2014-11-06
Standard
AIR786B
This document contains data relative to the chemical nature of aerospace fluids and relates each to its empirical effect upon elastomeric components. Since the compatibilities of elastomers are determined by the compounding as well as the nature of the base polymer, the elastomers considered are limited to finished compounds for which material or performance specifications can be referenced.
2014-11-06
WIP Standard
AS1371A
This standard covers all-metal, self-locking, prevailing torque nuts made of corrosion resistant steel.
2014-11-06
Standard
AS10081A
SCOPE IS UNAVAILABLE.
2014-11-05
Magazine
Adaptive trimming of composite parts Some of the techniques used in the Adaptive Manufacturing System are normal aerospace processes. The unique and enabling process is the scanning and adaptive trimming.
2014-11-04
WIP Standard
ARP4156C
This document defines the method for voltage identification by the use of color-coded insulators at the base of the lamps. Table 1 shows the design volts and corresponding insulator colors. The part numbers shown are for example purposes only, as an option. Insulator colors are to be easily distinguishable as green, yellow, red, and white. Additional colors may be added by a revision process as required.
2014-11-03
WIP Standard
MA3390A
No scope available.
2014-11-03
WIP Standard
MA3386A
No scope available.
2014-11-03
WIP Standard
MA3389A
No scope available.
2014-11-03
WIP Standard
MA3384A
No scope available.
2014-11-03
WIP Standard
MA3387A
No scope available.
2014-11-03
WIP Standard
MA3392A
No scope available.
2014-11-03
WIP Standard
MA3385A
No scope available.
2014-11-03
WIP Standard
MA3383A
No scope available.
2014-11-03
WIP Standard
MA3388A
No scope available.
2014-11-03
WIP Standard
MA3391A
No scope available.
2014-11-03
Standard
AMS3238H
This specification covers a butyl (IIR) rubber in the form of sheet, strip, tubing, extrusions, and molded shapes.
2014-11-03
WIP Standard
AS9105A
No scope available.
Viewing 31 to 60 of 15446

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