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Head Support Concept to Mitigate Neck Injury for Children Installed Forward Facing in Vehicles

General Motors of Brazil-Rodrigo da Silva Ribeiro
Unicamp-Antonio Celso Fonseca De Arruda
  • Technical Paper
  • 2019-36-0106
Published 2020-01-13 by SAE International in United States
The slender neck of a 3-year-old child can be serious injured or even lead to child’s death when loaded under frontal impact by the proportionately larger and heavier head. Accordingly with medical recommendations based on latest studies, a 3-year-old child is safer when installed in a rear-facing child seat, but this configuration is not feasible for some vehicles with limited rear space such as superminis, small MPVs and pick-ups when front seats are occupied. This study aims to explore the potential of neck tension (Fz) reduction in 3-year-old dummy installed forward-facing when subjected to three head static restraints (head strap, head support, cervical collar) as well as an overhead shield car seat in order to identify solutions for a device to avoid or mitigate neck injuries. To simulate frontal impacts, a 3-year-old dummy from Q series was installed on a reinforced vehicle body fixed on a sled test equipment where the United Nations R129 pulse was applied. Both head strap and head support were not able to reduce neck tension due to the high Q3…
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Measurement of Sub-23 nm particles emitted by gasoline direct injection engine with new advanced instrumentation

Aerosol & Particle Technology Laboratory (APTL), CPERI/C-Penelope Baltzopoulou, Leonidas Chasapidis, Daniil Deloglou, Anastasios D. Melas, Athanasios G. Konstandopoulos
Fachhochschule Nordwestschweiz (FHNW), Switzerland-Tobias Rüggeberg, Martin Fierz, Heinz Burtscher
  • Technical Paper
  • 2019-01-2195
Published 2019-12-19 by SAE International in United States
The research on health effects of soot particles has demonstrated their toxic impact on humans, especially for the smallest ones that can pass through the lungs into the bloodstream and be transferred to other parts of the body. Since the Euro 5b regulation, the total particle number (PN) at the exhaust is limited, but the associated protocol developed by the Particle Measurement Program (PMP) group defined a counting efficiency at the 23 nm cut-off particle diameter to avoid measurement artefacts [1][2]. Recent studies have demonstrated that the last generation Euro 6 engines can emit as many particles in the range 10-23 nm as beyond 23 nm [3].The SUREAL-23 project (Understanding, Measuring and Regulating Sub-23 nm Particle Emissions from Direct Injection Engines Including Real Driving Conditions), funded by Horizon 2020 EU-program, aims to develop sampling, conditioning and measuring instruments and associated methodologies to extend the existing protocol down to at least 10 nm. This measurement setup was evaluated on various light duty direct injection platforms. This communication focuses on a gasoline-DI vehicle with a Euro 6b…
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Employing the Electrical Digital Twin to Mitigate Compliance Risk in Aerospace

  • Magazine Article
  • TBMG-35688
Published 2019-12-01 by Tech Briefs Media Group in United States

Delivering aircraft and various avionics compliant with the latest standards and regulations is increasingly difficult. Today, it’s not uncommon for a single commercial aircraft to comprise hundreds of line-replaceable units, hundreds of miles of wire, and unique configurations throughout all parts of a platform that must meet numerous certification requirements. With increasing electrical system content and complexity, a single change during the design, verification, or compliance process can put the entire program in jeopardy. With the rise in electrification and design complexity, aerospace original equipment manufacturers (OEMs) need to look for new methodologies to mitigate compliance risk.

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Road Vehicles - Friction Materials - Finished Brake Pad Normalized Elastic Constant of Friction Material

Brake Linings Standards Committee
  • Ground Vehicle Standard
  • J3175_201911
  • Current
Published 2019-11-20 by SAE International in United States
This SAE standard specifies a method for testing and measuring a normalized elastic constant of brake pad assemblies using ultrasound. This document applies to disc brake pad assemblies and its coupons or segments used in road vehicles.
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Lattice Boom Cranes - Method of Test

Cranes and Lifting Devices Committee
  • Ground Vehicle Standard
  • J987_201911
  • Current
Published 2019-11-13 by SAE International in United States
This SAE Standard applies to mobile construction-type lifting cranes utilizing pendant-supported, conventional, and luffing jib type lattice boom crane structures.
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Recommended Practice for Performance Rating of Electric Vehicle Battery Modules

Battery Standards Testing Committee
  • Ground Vehicle Standard
  • J1798_201911
  • Current
Published 2019-11-13 by SAE International in United States
This SAE Recommended Practice provides for common test and verification methods to determine Electric Vehicle battery module performance. The document creates the necessary performance standards to determine (a) what the basic performance of EV battery modules is; and (b) whether battery modules meet minimum performance specification established by vehicle manufacturers or other purchasers. Specific values for these minimum performance specifications are not a part of this document.
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Steel, Corrosion-Resistant, Investment Castings 16Cr - 4.1Ni - 0.28Cb (Nb) - 3.2Cu Homogenization, Solution, and Precipitation Heat Treated (H1000) 150 ksi (1034 MPa) Tensile Strength (17-4)

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5343F
  • Current
Published 2019-11-05 by SAE International in United States
This specification covers a corrosion-resistant steel in the form of investment castings.
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Steel, Corrosion-Resistant, Investment Castings 15Cr - 4.6Ni - 0.22Cb (Nb) - 2.8Cu Solution and Precipitation Heat Treated (H925) 180 ksi (1241 MPa) Tensile Strength (15-5)

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5346D
  • Current
Published 2019-11-05 by SAE International in United States
This specification covers a corrosion-resistant steel in the form of investment castings.
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Steel, Corrosion-Resistant, Investment Castings 16Cr - 4.1Ni - 0.28Cb (Nb) - 3.2Cu Homogenization, Solution, and Precipitation Heat Treated (H1100) 130 ksi (896 MPa) Tensile Strength (17-4)

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5342F
  • Current
Published 2019-11-05 by SAE International in United States
This specification covers a corrosion-resistant steel in the form of investment castings.
This content contains downloadable datasets
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Steel, Corrosion-Resistant, Investment Castings 15Cr - 4.6Ni - 0.22Cb (Nb) - 2.8Cu Solution and Precipitation Heat Treated (H1000) 150 ksi (1034 MPa) Tensile Strength (15-5)

AMS F Corrosion Heat Resistant Alloys Committee
  • Aerospace Material Specification
  • AMS5347C
  • Current
Published 2019-11-05 by SAE International in United States
This specification covers a corrosion-resistant steel in the form of investment castings.
This content contains downloadable datasets
Annotation ability available