skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Impact Rating System for Vehicle ? Railway Bridge Collision.

Abstract

Abstract not provided.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1408361
Report Number(s):
SAND2016-11012C
648760
DOE Contract Number:
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Proposed for presentation at the International Modal Analysis Conference held January 30 - February 2, 2017 in Garden Grove, CA.
Country of Publication:
United States
Language:
English

Citation Formats

Shreya Vemuganti, Ali Ozdagli, Bideng Liu, Anela Bajric, Fernando Moreu, Matthew R. W. Brake, and Troyer, Kevin Levi. Impact Rating System for Vehicle ? Railway Bridge Collision.. United States: N. p., 2016. Web.
Shreya Vemuganti, Ali Ozdagli, Bideng Liu, Anela Bajric, Fernando Moreu, Matthew R. W. Brake, & Troyer, Kevin Levi. Impact Rating System for Vehicle ? Railway Bridge Collision.. United States.
Shreya Vemuganti, Ali Ozdagli, Bideng Liu, Anela Bajric, Fernando Moreu, Matthew R. W. Brake, and Troyer, Kevin Levi. 2016. "Impact Rating System for Vehicle ? Railway Bridge Collision.". United States. doi:. https://www.osti.gov/servlets/purl/1408361.
@article{osti_1408361,
title = {Impact Rating System for Vehicle ? Railway Bridge Collision.},
author = {Shreya Vemuganti and Ali Ozdagli and Bideng Liu and Anela Bajric and Fernando Moreu and Matthew R. W. Brake and Troyer, Kevin Levi},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2016,
month =
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share:
  • Abstract not provided.
  • Automobile accident reconstruction and vehicle collision analysis techniques generally separate vehicle collisions into three different phases: pre-impact, impact and post-impact. This paper will concern itself exclusively with the modeling of the impact phase, typically defined as the time the vehicles are in contact. Historically, two different modeling techniques have been applied to the impact of vehicles. Both of these techniques employ the impulse-momentum formulation of Newton's Second Law. The first relies exclusively on this principle coupled with friction and restitution to completely model the impact. The second method combines impulse-momentum with a relationship between crush geometry and energy loss tomore » model the impact. Both methods ultimately produce the change in velocity and other pertinent information about a collision.« less
  • Adoption of high-pressure common-rail (HPCR) fuel systems, which subject diesel fuels to higher temperatures and pressures, has brought into question the efficacy of ASTM International specifications for biodiesel and biodiesel blend oxidation stability, as well as the lack of any stability parameter for diesel fuel. A controlled experiment was developed to investigate the impact of a light-duty diesel HPCR fuel system on the stability of 20% biodiesel (B20) blends under conditions of intermittent use and long-term storage in a relatively hot and dry climate. B20 samples with Rancimat induction periods (IPs) near the current 6.0-hour minimum specification (6.5 hr) andmore » roughly double the ASTM specification (13.5 hr) were prepared from a conventional diesel and a highly unsaturated biodiesel. Four 2011 model year Volkswagen Passats equipped with HPCR fuel injection systems were utilized: one on B0, two on B20-6.5 hr, and one on B20-13.5 hr. Each vehicle was operated over a one-hour drive cycle in a hot running loss test cell to initially stress the fuel. The cars were then kept at Volkswagen's Arizona Proving Ground for two (35 degrees C average daily maximum) to six months (26 degrees C average daily maximum). The fuel was then stressed again by running a portion of the one-hour dynamometer drive cycle (limited by the amount of fuel in the tank). Fuel rail and fuel tank samples were analyzed for IP, acid number, peroxide content, polymer content, and ester profile. The HPCR fuel pumps were removed, dismantled, and inspected for deposits or abnormal wear. Analysis of fuels collected during initial dynamometer tests showed no impact of exposure to HPCR conditions. Long-term storage with intermittent use showed that IP remained above 3 hours, acid number below 0.3 mg KOH/g, peroxides low, no change in ester profile, and no production of polymers. Final dynamometer tests produced only small changes in fuel properties. Inspection of the HPCR fuel pumps revealed no deposits or abnormal wear for any fuel. The results provide some confidence that the ASTM D7467 stability requirement of 6 hr. minimum IP for B6 to B20 blends provides adequate protection for modern engine fuel systems.« less
  • In the paper, firstly, the authors present an efficient computational algorithm to evaluate the short circuit capacity distribution at a substation bus, and on basis of this distribution to specify the minimum short circuit capacity for the year under evaluation. Secondly, the authors estimate the maximum traction load at seven 161kv substations of Taiwan high-speed railway system which is now under planning. Thirdly, using the maximum traction load and the minimum short circuit capacity derived, the authors estimate the maximum unbalance of the 3{phi} voltage at these seven 161kv substations, and compare their results with that by Taipower to demonstratemore » the effectiveness of their proposed algorithm.« less
  • The US Department of Energy (DOE) Hanford Site at Richland, Washington requires a rail-mounted, shielded transfer of radioactively contaminated equipment in the T-Plant, U-Plant, B-Plant and PUREX canyon tunnel facilities. Some typical contaminated equipment are tanks (5--15 tons), reboiler bundles (7 tons), centrifuges (17 tons), moderators (13 tons), and pulse generators (5 tons). The Multipurpose Transfer Box (MTB) is designed and engineered to transport these pieces of equipment and meet specific design constraints for function, operation, and modified 10 CFR 71 normal and hypothetical accident conditions for transport. This report describes the Transfer Box. 8 figs.