Analysis of accelerations measured during full-scale tank car impact tests

Lyons, Matthew L; Riddell, William T; Koch, Kevin W; United States. Federal Railroad Administration; John A. Volpe National Transportation Systems Center (U.S.)

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Analysis of accelerations measured during full-scale tank car impact tests

2007-04-01
By Lyons, Matthew L ; Riddell, William T ; Koch, Kevin W

[PDF-1.12 MB]

English

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Details:

Creators:

Lyons, Matthew L ; Riddell, William T ; Koch, Kevin W

Lyons, Matthew L ; Riddell, William T ; Koch, Kevin W Less -
Corporate Creators:

United States. Federal Railroad Administration ; John A. Volpe National Transportation Systems Center (U.S.)

United States. Federal Railroad Administration ; John A. Volpe National Transportation Systems Center (U.S.) Less -
Subject/TRT Terms:

[+]

Acceleration (Mechanics) Accelerometers Gears Impact Tests Power Spectra Railroad Cars Railroad Traffic Railroad Trains Railroad Transportation Shock Resistance Tank Cars
Publication/ Report Number:

DOT/FRA/ORD-07/08 ; DOT VNTSC-FRA-07-03

DOT/FRA/ORD-07/08 ; DOT VNTSC-FRA-07-03 Less -
Resource Type:

Tech Report
Geographical Coverage:

United States
TRIS Online Accession Number:

1055628
Edition:

Final report
Corporate Publisher:

United States. Federal Railroad Administration
NTL Classification:

NTL-RAIL TRANSPORTATION-Rail Safety;NTL-RAIL TRANSPORTATION-RAIL TRANSPORTATION;NTL-SAFETY AND SECURITY-Rail Safety;NTL-SAFETY AND SECURITY-Vehicle Design;NTL-SAFETY AND SECURITY-Accidents;
Abstract:

Tank car impact responses were investigated using accelerometers mounted at various locations on a tank car. Several tests were run with both a full and an empty tank car, and varying the tank car impact speed. The data from the accelerometers went through a power spectral density (PSD) analysis for the longitudinal and vertical directions. The results from PSD analyses were compared with the peak coupler force and the dominant draft gear mechanism, also obtained from the data. The results showed that the dominant draft gear mechanism had a marked effect on the response of the tank car, and, as speed and energy increased, the draft gear mechanism changed. For the empty tank car impact test results, in longitudinal acceleration signals, a frequency of 0 Hz and a range of frequencies above 300 Hz were present in PSD analyses; in vertical acceleration signals, a frequency of 13 Hz was present in PSD analyses, coinciding with the first axial mode of a simply supported cylinder. For the full tank car impact test results, in the vertical acceleration signals, two distinct peaks, at 5 Hz and 26 Hz, were present.
Format:

PDF
Funding:

RR28/DB034
Collection(s):

Federal Railroad Administration Volpe Center
Main Document Checksum:

[+]

urn:sha256:3a181c7eedbdeea489f9646a0817227a117c0c3e0d87f3abf3c5b4de4a74553a
Download URL:

https://rosap.ntl.bts.gov/view/dot/8852/dot_8852_DS1.pdf
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Analysis of accelerations measured during full-scale tank car impact tests

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