Technical Paper collections have been re-named for better clarity and alignment.x

Your Selections

Finishing
Show Only

Collections

File Formats

Content Types

Dates

Sectors

Topics

Authors

Publishers

Affiliations

Committees

Events

Magazine

Series

   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Strategy for Optimizing an F1 Car’s Performance based on FIA Regulations

Oxford Brookes University-Karan Bopaiah, Stephen Samuel
  • Technical Paper
  • 2020-01-0545
To be published on 2020-04-14 by SAE International in United States
With the introduction of the V6 engines in Formula 1, in 2014, the sport aimed to close the gap between the automotive engine and high-performance motorsport engines in the area of fuel economy. A set of very challenging engineering regulations were introduced by the FIA to restrict the power from the Internal Combustion Engine (ICE), while allowing for more power to be harvested through energy recovery systems. Although progress has been made in developing a highly efficient powertrain, the limit to which this system can be pushed to is still unknown due to a significant gap between the technological choices available and the optimal control strategy used. This study investigated an engine-powertrain model of an F1 car with real world driver data for estimating the vehicle’s full throttle performance. The work used engine and drive-cycle simulation-modeling tools to build a representative car model which complied with the 2019 FIA regulations, in conjunction with real world data to identify the most critical parameter such as the gear shift strategy and the maximum energy recovered, stored and…
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.
new

Use of staircase method to validate a new design of engine pulley

Cummins Brasil LTDA-Tadeus Marchesi, Wagner Trindade
  • Technical Paper
  • 2019-36-0255
Published 2020-01-13 by SAE International in United States
A Cummins internal project demanded the development of a new crankshaft pulley. This new pulley will be mounted in the engine, but before this mounting process, a validation phase must be accomplished with the primary goal of avoiding failures during engine tests and, most of all, during vehicle operation. This article documents part of the work done to validate the new pulley, aiming to deliver a component that meets the specification demanded by the application to be released in the market. It is presented how acceptable unreliability of the pulley was assessed by means of fatigue testing. Several approaches could be used, but following internal standards for this kind of component, the procedure chosen was the staircase fatigue method. After finishing the testing phase and data treatment, the findings indicated that the new crankshaft pulley presented infinite life when subjected to the hub load found in the application with a design margin of 82%. Another validation that was carried out is related to the bolts used in the mounting. The bolted joint measurement and its…
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.
new

Effect of Shot Peening Conditions on the Fatigue Life of Additively Manufactured A357.0 Parts

SAE International Journal of Materials and Manufacturing

Università degli Studi di Modena e Reggio Emilia, Italy-Andrea Gatto, Antonella Sola
Università degli Studi di Modena e Reggio Emilia, Italy Maserati S.p.A., Italy-Emanuele Tognoli
  • Journal Article
  • 05-13-02-0009
Published 2020-01-09 by SAE International in United States
Fatigue performance can be a critical attribute for the production of structural parts or components via additive manufacturing (AM). In comparison to the static tensile behavior of AM components, there is a lack of knowledge regarding the fatigue performance. The growing market demand for AM implies the need for more accurate fatigue investigations to account for dynamically loaded applications. A357.0 parts are processed by laser-based powder bed fusion (L-PBF) in order to evaluate the effect of surface finishing on fatigue behavior. The specimens are surface finished by shot peening using ϕ = 0.2 and ϕ = 0.4 mm steel particles and ϕ = 0.21-0.3 mm zirconia-based ceramic particles. The investigation proves that all the considered post-processing surface treatments increase the fatigue resistance of as-built parts, but the effect of peening with ϕ = 0.4 mm steel particles or with ceramic particles is more pronounced than that of peening with ϕ = 0.2 mm steel particles, although this treatment has the same Almen A value as the ceramic one. The surface morphology and the crack surface…
This content contains downloadable datasets
Annotation ability available

Streamlining Post-Processing in Additive Manufacturing

  • Magazine Article
  • TBMG-35666
Published 2019-12-01 by Tech Briefs Media Group in United States

Undoubtedly there are many benefits associated with the use of additive manufacturing (AM) as a production technology. On a pan-industrial basis, manufacturers exploit the fact that through the use of AM they can not only build complex parts, in one piece, which were previously impossible, but they can also build stronger, lighter-weight parts, reduce material consumption, and benefit from assembly component consolidation across a range of applications. These advantages have all been well documented during the last 10-20 years as AM has emerged as a truly disruptive technology for prototyping and production, and are invariably seen as being enabled by the additive hardware that builds the parts. In reality, however, this is a partial picture, particularly for serial production applications of AM. AM hardware systems are actually just one part – albeit a vital part – of an extensive ecosystem of technologies that enable AM, both pre- and post-build.

   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

INSERT, SCREW THREAD, SELF-LOCKING LOCKED IN, KEY LOCKED, EXTRA HEAVY DUTY, SELF-BROACHING KEYS, UNS S66286

E-25 General Standards for Aerospace and Propulsion Systems
  • Aerospace Standard
  • AS3546B
  • Current
Published 2019-11-21 by SAE International in United States
No Abstract Available.
This content contains downloadable datasets
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

INSERT, SCREW THREAD, SELF-LOCKING, LOCKED IN, KEY LOCKED, HEAVY-DUTY, SELF-BROACHING KEYS, UNS S66286

E-25 General Standards for Aerospace and Propulsion Systems
  • Aerospace Standard
  • AS3545A
  • Current
Published 2019-11-21 by SAE International in United States
No Abstract Available.
This content contains downloadable datasets
This content contains a 2D/3D configurator
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Titanium Alloy Bars, Forgings, and Rings 6Al - 4V Extra Low Interstitial (ELI) Duplex Annealed, Fracture Toughness

AMS G Titanium and Refractory Metals Committee
  • Aerospace Material Specification
  • AMS4931G
  • Current
Published 2019-11-05 by SAE International in United States
This specification covers a titanium alloy in the form of bars 6.000 inches (152.40 mm) and under in nominal diameter or least distance between parallel sides, forgings and flash welded rings 6.000 inches (152.40 mm) and under in thickness, and stock for forging and stock for flash welded rings of any size.
This content contains downloadable datasets
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Plating, Nickel Low-Stressed Deposit

AMS B Finishes Processes and Fluids Committee
  • Aerospace Material Specification
  • AMS2424F
  • Current
Published 2019-11-04 by SAE International in United States
This specification covers the requirements for electrodeposited low-stressed nickel.
This content contains downloadable datasets
Annotation ability available
   This content is not included in your SAE MOBILUS subscription, or you are not logged in.

Coating, Titanium Nitride Physical Vapor Deposition

AMS B Finishes Processes and Fluids Committee
  • Aerospace Material Specification
  • AMS2444A
  • Current
Published 2019-11-04 by SAE International in United States
This specification covers the requirements for the application and properties of a titanium nitride coating on metal parts applied by physical vapor deposition (PVD).
This content contains downloadable datasets
Annotation ability available

Implantables to Augment Missing Body Tissue

  • Magazine Article
  • TBMG-35509
Published 2019-11-01 by Tech Briefs Media Group in United States

Kanfit3D has entered into a joint research partnership with the University of Brescia (Italy). The project will develop unique implantable structures, using additive layer manufacturing (ALM) technologies, for replacing or augmenting missing body tissue with customized surface treatments for improved osseointegration to achieve a better biological response within a reduced healing time.