Overview of a crash energy management specification for passenger rail equipment

Tyrell, David; Martinez, Eloy; Severson, K.; Jacobsen, Karina; Parent, D.; Priante, M.; Perlman, Amotz

doi:10.1109/rrcon.2006.215303

Cited by 12 publications

(7 citation statements)

References 13 publications

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“…The research conducted by the FRA, including this study, was recently used to evaluate the most practical strategies for improving the crashworthiness of Metrolink's fleet of multilevel passenger cars [13]. For the initial release of a procurement for new passenger equipment, specifications for CEM cab cars were included, with the intention of operating CEM cab cars with conventional cars modified with pushback couplers.…”

Section: Resultsmentioning

confidence: 99%

Effectiveness of alternative rail passenger equipment crashworthiness strategies

Jacobsen

Severson

Perlman

2006

Proceedings of the 2006 IEEE/ASME Joint Rail Conference

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Section: Resultsmentioning

confidence: 99%

Effectiveness of alternative rail passenger equipment crashworthiness strategies

Jacobsen

Severson

Perlman

2006

Proceedings of the 2006 IEEE/ASME Joint Rail Conference

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“…Guardian equipment [9] and are being used to develop alternative crashworthiness regulations for trainsets [10].…”

Section: Past Research Activitiesmentioning

confidence: 99%

Reducing the Harm in Rail Crashes: Analysis of Injury Mechanisms and Mitigation Strategies

Wilson

Tyrell

2016

2016 Joint Rail Conference

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Twenty-three commuter and inter-city passenger train accidents, which occurred over the past twenty years, have been analyzed. The analysis has assessed the potential effectiveness of various injury mitigation strategies. The strategies with the greatest potential to increase passenger safety are interior occupant protection, coupler integrity, end structure integrity, side structure integrity, and glazing system integrity. We recommend that these strategies be researched further.

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“…AAR Standards [4], APTA Standards [5,6], and railroad specifications [7]. In particular, locomotives compliant with current requirements for locomotive crashworthiness, including AAR S-580 [4] and 49 CFR 229 [3], appear to be accepted as having greater crashworthiness than locomotives designed to previous requirements.…”

Section: Introductionmentioning

confidence: 99%

Liquefied Natural Gas Tender Crashworthiness Research

Tyrell

2015

2015 Joint Rail Conference

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Research is being conducted to develop technical information needed to formulate effective natural gas fuel tender crashworthiness standards.This research is being performed for the Federal Railroad Administration's (FRA's) Office of Research, Development, and Technology, and intended to facilitate industry efforts to use natural gas as a locomotive fuel. Strategies to assure crashworthiness during moderate accidents, such as train-to-train collisions at speeds up to 40 mph, are being evaluated.This research applies the approach FRA has used to develop technical information on locomotive, hazmat tank car, and diesel fuel tank crashworthiness. There are four primary tasks:1. Definition of collision scenarios 2. Evaluation of traditional designs 3. Evaluation of alternative designs 4. Recommendation of effective crashworthiness strategies The tender scenarios have been drafted from reviews of freight train accidents and of scenarios developed for locomotives, hazmat tank cars, and fuel tanks. From these reviews, five scenarios were selected. These scenarios are intended to bound the range of collisions that a tender may experience, are being used to evaluate the crashworthiness of traditional tender designs, and will be used to evaluate alternative design tenders. The five candidate scenarios are:1. Train-to-train collision 2. Grade-crossing accident 3. Tender derailment and rollover 4. Impact into tender tank shell during derailment 5. Impact into tender tank head during derailment As part of previous research on locomotives and passenger equipment, a range of crashworthiness analysis techniques were developed. These include simplified techniques, which can be performed rapidly and provide essential results, and detailed computer simulations which provide a wealth of information.The crashworthiness performance of a hypothetical tender design has been evaluated using simplified techniques. Simplified techniques include quasi-static crush analysis of structural elements and lumped-parameter analysis of train dynamics. The results suggest that efforts to enhance crashworthiness should principally be directed toward the trainto-train scenario. Work is ongoing to develop strategies for improving tender crashworthiness.

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Overview of a crash energy management specification for passenger rail equipment

Cited by 12 publications

References 13 publications

Effectiveness of alternative rail passenger equipment crashworthiness strategies

Effectiveness of alternative rail passenger equipment crashworthiness strategies

Reducing the Harm in Rail Crashes: Analysis of Injury Mechanisms and Mitigation Strategies

Liquefied Natural Gas Tender Crashworthiness Research

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