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Friday, July 24, 2020 | History

1 edition of Study of differences in Hybrid III chest deflections due to three-and two-point belt loadings found in the catalog.

Study of differences in Hybrid III chest deflections due to three-and two-point belt loadings

by D. H. Robbins

  • 6 Want to read
  • 15 Currently reading

Published by U.S. Dept. of Transportation, National Highway Traffic Safety Administration, Available through NTIS in Washington, D.C.], Springfield, Va .
Written in English

    Subjects:
  • Crash injuries,
  • Automobiles,
  • Seat belts,
  • Testing,
  • Mathematical models

  • Edition Notes

    Statement[D. Hurley Robbins]
    ContributionsUnited States. National Highway Traffic Safety Administration, University of Michigan. Transportation Research Institute
    The Physical Object
    Paginationi, 26 p. ;
    Number of Pages26
    ID Numbers
    Open LibraryOL25843126M
    OCLC/WorldCa18361566

    This paper presents a load distribution-specific viscoelastic structural characterization of the Hybrid III 50th percentile male anthropomorphic test dummy thorax. The dummy is positioned supine on a high-speed material testing machine and ramp-and-hold tests are performed using a distributed load, a hub load, and a diagonal belt load applied   () Diagonalization of diffusion equations in two and three dimensions. Journal of Atmospheric and Solar-Terrestrial Physics , () Improving surface heat flux estimation for a large lake through model optimization and two-point calibration: The case of Lake ://

    Nonlinear Finite Element Analysis of An illustration of a person's head and chest. Sign up | Log in. An illustration of a computer application window Wayback Machine. An illustration of an open book. Books. An illustration of two cells of a film strip. Video. An illustration of an audio speaker. Audio. An illustration of a " floppy disk. Software. An illustration of two

      In (b) a Hybrid III dummy model is shown in a driver position. The 50th percentile male Hybrid III model is shown in Fig. (c) through (e). Insets (c) and (d) are finite element models, while inset (e) is a section through the simpler multi-body :// Bir () reported results of low velocity ( m/s) and high mass ( g) projectiles used to study force–time, deflection–time and force–deflection responses on the chest of 13 human cadavers The chest wall deflection was about cm for a kinetic energy of J and a deflection of about cm for energy of 28 J for the two


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Study of differences in Hybrid III chest deflections due to three-and two-point belt loadings by D. H. Robbins Download PDF EPUB FB2

Department of Transportation National Highway Traffic Safety Administration DOT HS February Final Report Study of Differences in Hybrid III Chest Deflections Due to Three-and Two-Point Belt Loadings This document is available to the public from the National Technical Information Service, Springfield, Virginia J The United Study of differences in Hybrid III chest deflections due to three- and two-point belt loadings.

Final report. By D. Robbins. Abstract. Notes: Report covers the period Sept Feb Year: OAI identifier: oai: In this study we found two different sources for chest injuries in frontal crashes with oblique movement.

The first mechanism was due to anterior chest loadings and is well known, and countermeasures such as frontal airbags and belt force limiters have been introduced. In all found NASS cases, the frontal air bags were also deployed during the   1 (1 of 3) 16 Robbins, D.

"Study of Differences in Hybrid III Chest Deflections Due to Three‐ and Two‐Point Belt Loadings" 1 (1 of 3) 17 Rouhana, S.

et al. "Assessing Submarining and Abdominal Injury Risk in the Hybrid III Family of Dummies: Part II – Specifically, the study was designed to determine the most efficacious mounting location of light emitting diodes (LEDs) on the ribs and sternum in the 50th percentile male Hybrid III :// Study of differences in Hybrid III chest deflections due to three-and two-point belt loadings Robbins, D.

H,United States. National Highway Traffic Safety Administration,University of :// For the degree tests, these magnitudes were, and mm. Statistical analysis indicated no significant (p > ) differences in peak chest deflections at all levels between the two A later study focused on far-side crashes and used the NASS-CDS and WLIC data for the years to and to (Augenstein et al., ).

It was found that the head and chest were the two most frequently injured body regions to restrained front outboard :// 91 Fahrzeugkonstruktion. Filtern. Autor. Adolph, Thorsten (16)   1. Introduction. The development and refinement of injury criteria and injury risk functions are primary applications of injury biomechanics research (e.g., Viano and Lau, ; Kent and Funk ; Petitjean et al., ).An injury criterion is a measurable parameter or combination of parameters, whose magnitude can be correlated with the risk of an injury :// The objective of the study was to obtain time-dependent thoracic and abdominal deflections of an anthropomorphic test device, the WorldSID dummy, in oblique impact using sled tests, and compare The dummy tests were conducted with an R seat with a three-point belt, the Delta V was +/ km/h and the maximum peak acceleration was approximately +/ g for each test   An example of the numerical discretization and idealization is shown in Fig.where the cross-sectional view A-A of a long 3D dam is idealized as a 2D plane strain problem before the cross section is discretized into a finite number of triangular elements.

Clearly, developing a 3D FE model of the entire dam is an option, if there are no concerns regarding costs associated with model The overall mean maximum normalized chest deflections, maximum chest compression velocities, and peak viscous response variables ranged from toto m/s, and to m/s This two part study investigates differences in thorax deflections between volunteers and dummies when they are dynamically loaded by diagonal shoulder belts and it shows how internal measurements at the Hybrid III dummy's sternum relate to external compressions at various points of the rib In the cited study, like the current one, two specimens were tested under four initial conditions.

Sled tests with four different initial conditions (fully restrained torso, and torso with three-point belt restraints under two velocities) identified the need to develop a protocol for inducing lateral bending to the PMHS head-neck complex and The experiment was executed to study the inheritance of two primary yield component traits: number of seeds per pod and seed weight.

Statistical significant difference was observed between genotypes, parents, and crosses for these traits. The mean square due to GCA was significant for the two ://?p= In this research, inboard shoulder belt and lap belt geometries and forces were investigated to reduce chest deflection.

First, the inboard shoulder belt geometry was changed by the lap/shoulder belt (L/S) junction for the rear seat occupant in sled tests using Hybrid III   Additionally, the commonly used frontal-impact Hybrid III dummy allows only one displacement transducer and cannot be used to determine the relative contributions to injury risks that are attributed to a seat belt or an airbag (Kent et al., a).

Flail Chest   In the vehicle model, two ATDs (Anthropomorphic Test Device), namely the Hybrid III 50th percentile male adult dummy for the frontal impacts and the ES2-re 50th percentile male adult dummy for the side impacts, seated in the vehicle models, respectively,  › 百度文库 › 互联网.

In addition to chest stiffness, two other factors highly influenced the chest response of the Hybrid III; the Hybrid III thorax spine is rigid and as a result the thorax did not flex as did the demonstrator and the PMHS; the Hybrid III exhibited smaller head forward displacements than those specified in the project requirements (Fig.

31).The performance of two types of 4-point seat belts was compared with that of a pretensioned, load-limited, 3-point seat belt. A 3-point belt with an extra shoulder belt that “crisscrossed” the chest (X4) appeared to add constraint to the torso and increased chest deflection and injury The objectives of this study were to examine the response, repeatability, and injury predictive ability of the Hybrid III small-female dummy to static out-of-position (OOP) deployments using a depowered driver-side airbag.

Five dummy tests were conducted in two OOP configurations by two different ?pg=