Discrete Element Modeling of Railway Ballast for Studying Railroad Tamping Operation

Ahmadian, Mehdi; Jones, J. Bernard; Dama, Nilesh; Virginia Polytechnic Institute and State University. Department of Mechanical Engineering; University Transportation Center on Improving Rail Transportation Infrastructure Sustainability and Durability. USDOT Tier 1

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Discrete Element Modeling of Railway Ballast for Studying Railroad Tamping Operation

2020-08-10
By Ahmadian, Mehdi ; Jones, J. Bernard ; Dama, Nilesh

[PDF-2.47 MB]

English

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Creators:

Ahmadian, Mehdi ; Jones, J. Bernard ; Dama, Nilesh

Ahmadian, Mehdi ; Jones, J. Bernard ; Dama, Nilesh Less -
Corporate Creators:

Virginia Polytechnic Institute and State University. Department of Mechanical Engineering ; University Transportation Center on Improving Rail Transportation Infrastructure Sustainability and Durability. USDOT Tier 1

Virginia Polytechnic Institute and State University. Department of Mechanical Engineering ; University Transportation Center on Improving Rail Transportation Infrastructure Sustainability and Durability. USDOT Tier 1 Less -
Corporate Contributors:

United States. Department of Transportation. University Transportation Centers (UTC) Program ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology

United States. Department of Transportation. University Transportation Centers (UTC) Program ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology Less -
Subject/TRT Terms:

[+]

Ballast (Railroads) Calibration Feasibility Analysis Simulation Tamping Validation
Publication/ Report Number:

VT-3
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Final Report
Corporate Publisher:

Virginia Polytechnic Institute and State University
Abstract:

Railway Technologies Laboratory (RTL) studied the behavior of the ballast particles during their interaction with tamping tines in tamping operation by developing a simulation model using the Discrete Element Model (DEM). Through a parametric study, it is found that squeeze and release velocity of the tines should be lesser for better compaction of the particles and linear tamping is better compared to elliptical tamping.
Format:

PDF
Funding:

69A3551747132
Collection(s):

University Transportation Centers
Main Document Checksum:

[+]

urn:sha-512:e4249cdeb0db91e2101efece519444f92bfea600c18043a3f39723b031e53aef753289ab49482511efc44b2a8bc0ef9b93f74e1267b85676af7ef4cbca05e950
Download URL:

https://rosap.ntl.bts.gov/view/dot/78528/dot_78528_DS1.pdf
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Discrete Element Modeling of Railway Ballast for Studying Railroad Tamping Operation

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