Opportunity Information: Apply for FR RRD 14 004
Apply for FR RRD 14 004
- The DOT/Federal Railroad Administration in the science and technology and other research and development sector is offering a public funding opportunity titled "Automated Measurement of Stress in Continuous Welded Rail Artificial Heating Option Study" and is now available to receive applicants.
- Interested and eligible applicants and submit their applications by referencing the CFDA number(s): 20.313 Railroad Research and Development.
- This funding opportunity was created on Feb 3, 2014 and posted on Feb 3, 2014.
- Applicants must submit their applications by Feb 17, 2014 No Explanation. (Agency may still review applications by suitable applicants for the remaining/unused allocated funding in 2026.)
- Each selected applicant is eligible to receive up to $299,654.00 in funding.
- Eligible applicants include: Others (see text field entitled Additional Information on Eligibility for clarification).
- Only the The Regents of the University of California University of California, San Diego is eligible to apply for this grant.
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Opportunity Summary:
The Department of Transportation's Federal Railroad Administration (FRA) offered this discretionary research grant to support continued development of a nondestructive technique for measuring stress conditions in continuous welded rail. The work centers on using nonlinear ultrasonic guided waves to estimate rail neutral temperature (often abbreviated as NT), which is a key factor in understanding thermal stress states in welded rail. Accurate NT measurement is important for rail safety because rails in service expand and contract with temperature changes, and unfavorable stress states can contribute to risks such as buckling in hot conditions or fractures in cold conditions. This opportunity is essentially about maturing a measurement approach so it can be used more reliably and efficiently in real-world field settings.
The grant's main objective is to advance the research and development of this nonlinear ultrasonic method so it can produce dependable NT measurements under practical operating constraints. The planned effort is organized around three specific tasks. First, the project aims to develop, test, and demonstrate an "artificial rail heating" option. The point of artificial heating is to speed up testing and reduce dependence on environmental conditions, which can otherwise slow down or complicate measurement campaigns. By controlling rail temperature locally and intentionally, the team can reduce the influence of weather variability and the operational disruption caused by passing trains, both of which can affect data quality, test timing, and repeatability.
Second, the project focuses on extending the method to additional rail profiles commonly used in the United States, specifically 115RE and 132RE rail sizes. Because ultrasonic guided wave behavior and nonlinear response can vary with rail geometry and other physical parameters, the technique requires calibration settings tailored to each rail type. This part of the work is aimed at identifying the calibration and parameter settings needed for accurate nonlinear ultrasonic measurement on these two rail sections, improving the method's applicability across a larger portion of the national rail network.
Third, the grant supports optimization of the software used to analyze ultrasonic data produced by a field-deployable system. In practice, a method can be scientifically sound but still difficult to use if data processing is slow, overly sensitive, or too dependent on specialized expertise. Software improvements in this context generally mean making analysis faster, more automated, more robust to field noise and variability, and better integrated with portable equipment so that results can be obtained efficiently during on-site inspections rather than requiring lengthy post-processing back in a lab.
Administratively, the opportunity was issued under Funding Opportunity Number FR RRD 14 004 and fell under the Railroad Research and Development program (CFDA 20.313). It was posted on February 3, 2014, with an application closing date of February 17, 2014, and it was later archived on March 19, 2014. The award ceiling was $299,654, with no cost-sharing or matching requirement. Eligibility was restricted to a single applicant: The Regents of the University of California, University of California, San Diego, meaning this was a targeted award intended to continue or expand a specific line of research already underway with that institution.
Overall, the grant can be understood as a focused continuation effort designed to push an existing nondestructive rail stress measurement technology closer to dependable field deployment. It targets practical barriers to real-world use, including test speed and environmental sensitivity (addressed through artificial heating), applicability across widely used rail sizes (addressed through new calibration settings), and operational usability (addressed through software optimization). The announcement states that this additional work is expected to meet the program's performance goals, suggesting that the research plan was closely aligned with FRA's near-term needs for improved, field-ready rail stress and neutral temperature measurement capability.
Frequently Asked Questions (FAQs)
1. What is the purpose of this FRA discretionary research grant?
The purpose of this grant is to support continued development of a nondestructive technique for measuring stress conditions in continuous welded rail. Specifically, it funds work to mature a nonlinear ultrasonic guided-wave method used to estimate rail neutral temperature (NT) so the approach becomes more reliable and efficient in real-world field settings.
2. Which agency and program offered this opportunity?
The opportunity was offered by the U.S. Department of Transportation's Federal Railroad Administration (FRA) under the Railroad Research and Development program (CFDA 20.313).
3. What is being measured, and why does it matter for rail safety?
The project focuses on estimating rail neutral temperature (NT), a key factor for understanding thermal stress states in continuous welded rail. Accurate NT measurement matters because rails expand and contract as temperatures change, and unfavorable stress conditions can contribute to safety risks such as rail buckling in hot conditions or fractures in cold conditions.
4. What technical approach is the grant advancing?
The grant advances a nondestructive measurement approach using nonlinear ultrasonic guided waves to estimate rail neutral temperature (NT) and thereby infer rail stress conditions in continuous welded rail.
5. What is the main objective of the funded work?
The main objective is to advance the research and development of the nonlinear ultrasonic method so it can produce dependable neutral temperature measurements under practical operating constraints encountered during field use.
6. What are the three major tasks supported by the grant?
The planned effort is organized into three tasks:
- Develop, test, and demonstrate an "artificial rail heating" option to speed up testing and reduce dependence on environmental conditions.
- Extend the method to additional U.S. rail profiles (115RE and 132RE) by identifying calibration and parameter settings needed for accurate measurements.
- Optimize the software used to analyze ultrasonic data from a field-deployable system to improve speed, automation, and robustness in field conditions.
7. What is "artificial rail heating" in the context of this project?
Artificial rail heating refers to a project feature intended to locally and intentionally control rail temperature during testing. The stated goal is to speed up measurement campaigns and reduce reliance on natural environmental temperature swings that can slow down, complicate, or reduce repeatability of field measurements.
8. Why is reducing dependence on weather and train traffic important for these measurements?
According to the opportunity description, weather variability and operational disruption caused by passing trains can affect data quality, test timing, and repeatability. Artificial heating is meant to reduce those influences so testing can be conducted more consistently and efficiently.
9. Which rail profiles are specifically included in the method extension work?
The grant specifically calls out extending the method to two rail sections commonly used in the United States: 115RE and 132RE.
10. Why does the method need calibration for different rail sizes?
The description notes that ultrasonic guided-wave behavior and nonlinear response can vary with rail geometry and other physical parameters. As a result, the technique requires calibration settings tailored to each rail type, and the project includes identifying those settings for 115RE and 132RE.
11. What kinds of software improvements are intended?
The grant supports optimization of software used to analyze field ultrasonic data. The stated intent is to make analysis faster, more automated, more robust to field noise and variability, and better integrated with portable equipment so results can be obtained efficiently during on-site inspections rather than relying on lengthy post-processing in a lab.
12. What is the Funding Opportunity Number (FON) for this announcement?
The Funding Opportunity Number listed is FR RRD 14 004.
13. What is the maximum award amount (award ceiling)?
The award ceiling for this opportunity was $299,654.
14. Is cost sharing or matching required?
No. The opportunity states there was no cost-sharing or matching requirement.
15. Who was eligible to apply?
Eligibility was restricted to a single applicant: The Regents of the University of California, University of California, San Diego. This indicates the award was targeted to continue or expand a specific line of research already underway with that institution.
16. When was the opportunity posted and when did it close?
It was posted on February 3, 2014, and the application closing date was February 17, 2014.
17. When was the opportunity archived?
The opportunity was later archived on March 19, 2014.
18. How does this grant relate to field deployment?
The opportunity is described as a focused continuation effort intended to push an existing nondestructive rail stress/neutral temperature measurement technology closer to dependable field deployment. The tasks target practical barriers to real-world use, including test speed and environmental sensitivity, applicability across common rail sizes, and usability of field data analysis.
19. What operational or practical constraints is the project trying to address?
Based on the description, the project aims to address constraints such as dependence on environmental conditions, disruptions from passing trains, the need to support multiple rail profiles with proper calibration, and the need for faster and more robust analysis software suitable for on-site inspections.
20. What does the announcement indicate about alignment with FRA program goals?
The announcement states that the additional work is expected to meet the program's performance goals, suggesting the research plan was closely aligned with FRA's near-term need for improved, field-ready rail stress and neutral temperature measurement capability.
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