Name: Development of Gage Widening Protection Parameter for the Deployable Gage Restraint Measurement System (en Inglés)
Price: 32.78 USD
Availability: InStock
Author: Transportation, U. S. Department of
ISBN: 9781499695670

portada Development of Gage Widening Protection Parameter for the Deployable Gage Restraint Measurement System (en Inglés)

Formato

Libro Físico

Autor

U. S. Department of Transportation

Editorial

Createspace Independent Publishing Platform

Idioma

Inglés

N° páginas

Encuadernación

Tapa Blanda

Dimensiones

28.0 x 21.6 x 0.3 cm

Peso

0.16 kg.

ISBN13

9781499695670

Categorías

Transporte: interés general

Development of Gage Widening Protection Parameter for the Deployable Gage Restraint Measurement System (en Inglés)

U. S. Department of Transportation (Autor) · Createspace Independent Publishing Platform · Tapa Blanda

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Origen: Estados Unidos (Costos de importación incluídos en el precio)

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Reseña del libro "Development of Gage Widening Protection Parameter for the Deployable Gage Restraint Measurement System (en Inglés)"

Recent gage restraint measurement system (GRMS) developments include the redesign of GRMS vehicles to conduct testing from a deployable axle instead of using freight truck mounted axle and GRMS on hi-rail vehicles. This new test configuration results in boundary condition changes in the applied loads and split axle location; both of which influence the results. To ensure equivalent safety considering these significant changes, a comprehensive evaluation of the mechanistic basis for previous GRMS rulemaking, coupled with a fundamental investigation of factors influencing GRMS performance and inspection accuracy, was conducted along with field-testing to verify conclusions. Results of the investigation to date suggest a need for reconsideration of the gage widening ratio (GWR) equation, which treated vertical load as a constant parameter. With the new GRMS testing capability at a wider range of test loads, it is necessary to include vertical load in the GWR equation. GWR has been the leading source of discrepancies between the inspections conducted by original GRMS design and redesigned vehicles over the same territory. This report describes the analysis and recent field-testing to provide the fundamental basis for a proposed gage widening projection formula.