Investigation and Comparision of Modeling and Numerical Soloution of the Dynamic Ballasted Railway Tracks with Unsupported Sleepers

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

Bani Asadi Alireza; Bordbar Mohammad; Mosayebi Seyed Ali; Zakeri Jabbar Ali

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: International Journal of Railway Research Year:2025 | Volume:12 | Issue:2 Page(s): 34-48

Download Full-Text

View:

Download:

Cites:

Information Journal Paper

Title

Investigation and Comparision of Modeling and Numerical Soloution of the Dynamic Ballasted Railway Tracks with Unsupported Sleepers

Author(s)

Bani Asadi Alireza | Bordbar Mohammad | Mosayebi Seyed Ali | Zakeri Jabbar Ali | Issue Writer Certificate

Keywords

Unsupported sleeper

Ballasted railway track

Dynamic analysis

Rail deflection

Sleeper displacement

Ballast settlement

Abstract

The phenomenon of Unsupported sleepers is considered one of the most critical factors affecting the dynamic performance of Ballasted railway tracks. Disrupting the contact between the sleeper and the ballast leads to increased deflection, stress concentration, and reduced track stability. This study aims to numerically analyze and simulate the dynamic effects of Unsupported sleepers, focusing on their numbers and layout patterns in the Ballasted railway tracks. For this purpose, a three-layer mechanical model consisting of rail, sleeper, and ballast was developed in MATLAB, and its results were compared with an equivalent finite element model created in ABAQUS. The MATLAB model employs mass, stiffness, and damping matrices along with a time-dependent moving load to evaluate the system's response under various Unsupported sleeper conditions. In the ABAQUS model, sleepers and ballast were modeled as concentrated masses, with their interactions represented via equivalent spring-damper systems; loading was applied incrementally along the train path. The results indicate that increasing the number of Unsupported sleepers—particularly in sequential arrangements—significantly amplifies Rail deflection and mid-span stress, with the most critical response observed in the case of three-consecutive-unsupported-sleepers. These findings indicate the necessity of continuous monitoring and preventive maintenance of unsupported zones to ensure track safety and extend structural service life.

Multimedia

No record.

Cites

No record.

References

No record.

Cite

Related Journal Papers

No record.

Related Seminar Papers

No record.

Related Plans