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

Al-Nazer, Leith; Sivathanu, Yudaya

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

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

File Language:

English

Details

Creators:

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

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

https://rosap.ntl.bts.gov/view/dot/26236/dot_26236_DS1.pdf
File Type:

[PDF - 286.36 KB]
Collection(s):

US Transportation Collection
Main Document Checksum:

urn:sha-512:9ca2e4faa91f7356c2bb07853386eeb3e3afa0bca292d0f4e8d0449465fdc0e277a02adcc6a38be77d53b5733c139c9adfa7bfce2666df0f5a1020b66ebd8cae

File Language:

English

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