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Article

A Novel Approach to the Analysis of Under Sleeper Pads (USP) Applied in the Ballasted Track Structures

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Institute of Roads and Bridges, Faculty of Civil Engineering, Warsaw University of Technology, Al. Armii Ludowej 16, 00-637 Warsaw, Poland
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Institute of Building Engineering, Faculty of Civil Engineering, Warsaw University of Technology, Al. Armii Ludowej 16, 00-637 Warsaw, Poland
*
Author to whom correspondence should be addressed.
Materials 2020, 13(11), 2438; https://doi.org/10.3390/ma13112438
Received: 7 May 2020 / Revised: 20 May 2020 / Accepted: 24 May 2020 / Published: 26 May 2020
The present paper is dedicated to the analysis of under sleeper pads (USP), which are resilient elements used in ballasted track systems as vibration isolators. Four types of USP are considered. The authors present the results of laboratory tests, which are then used as input values for the finite element (FE) and mechanical model of the structure. A special focus is put on the description of an original four-degree-of-freedom (4DoF) mechanical model of the system that includes a fractional rheological model of USP. Using the proposed approaches, the dynamic characteristics of under sleeper pads are determined, and conclusions on vibration isolation effectiveness are drawn. View Full-Text
Keywords: under sleeper pads; vibration damping; rheological model; finite element method under sleeper pads; vibration damping; rheological model; finite element method
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MDPI and ACS Style

Zbiciak, A.; Kraśkiewicz, C.; Al Sabouni-Zawadzka, A.; Pełczyński, J.; Dudziak, S. A Novel Approach to the Analysis of Under Sleeper Pads (USP) Applied in the Ballasted Track Structures. Materials 2020, 13, 2438. https://doi.org/10.3390/ma13112438

AMA Style

Zbiciak A, Kraśkiewicz C, Al Sabouni-Zawadzka A, Pełczyński J, Dudziak S. A Novel Approach to the Analysis of Under Sleeper Pads (USP) Applied in the Ballasted Track Structures. Materials. 2020; 13(11):2438. https://doi.org/10.3390/ma13112438

Chicago/Turabian Style

Zbiciak, Artur, Cezary Kraśkiewicz, Anna Al Sabouni-Zawadzka, Jan Pełczyński, and Sławomir Dudziak. 2020. "A Novel Approach to the Analysis of Under Sleeper Pads (USP) Applied in the Ballasted Track Structures" Materials 13, no. 11: 2438. https://doi.org/10.3390/ma13112438

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