In-motion, non-contact rail temperature measurement sensor.

Al-Nazer, Leith; Sivathanu, Yudaya; United States. Federal Railroad Administration. Office of Research and Development

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In-motion, non-contact rail temperature measurement sensor.

2012-12-01
By Al-Nazer, Leith ; Sivathanu, Yudaya

[PDF-286.36 KB]

English

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Creators:

Al-Nazer, Leith ; Sivathanu, Yudaya

Al-Nazer, Leith ; Sivathanu, Yudaya Less -
Corporate Creators:

United States. Federal Railroad Administration. Office of Research and Development
Subject/TRT Terms:

[+]

Buckling Field Tests Rail (Railroads) Railroad Tracks Temperature Measurement Temperature Sensors Thermal Expansion
Publication/ Report Number:

RR 12-18
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

United States. Federal Railroad Administration. Office of Railroad Policy and Development
NTL Classification:

NTL-RAIL TRANSPORTATION-RAIL TRANSPORTATION
Abstract:

Preventing track buckling incidents (Figure 1) is important to the railroad industry. Track materials, rail steel, for example, experience thermal expansion, which refers to the increase in a material’s volume as its temperature rises. Thermal expansion can affect the stability of the railroad track structure by causing a longitudinal force to develop along the rail. If this force becomes too great, and lateral restraint from the rail fasteners and ballast is weak, a track buckle can occur. It is common practice for railroads to impose localized or territory-specific slow orders on days with high ambient temperatures since the risk of track buckling is potentially greater on those days.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:89233d90b079958b097f282976bcb43c7602e146cce043f92ba699ded1db73c5
Download URL:

https://rosap.ntl.bts.gov/view/dot/26236/dot_26236_DS1.pdf
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In-motion, non-contact rail temperature measurement sensor.

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