| Title | Design, Fabrication and Evaluation of Prototype Wayside Brake Inspection Sensors |
|---|---|
| Record ID | 50055 |
| Personal Name Creator |
Spaulding, D. B.; Lentz, Jr., J. W.; Fryklund, G. G.; Gillespie, J. R. |
| Source | 205p. in various pagings |
| Corporate Creator | John A. Volpe National Transportation Systems Center (U.S.) |
| Corporate Contributor |
United States. Department of Transportation. Federal Railroad Administration. Office of Research and Development |
| Publisher | United States. Department of Transportation. Federal Railroad Administration |
| Publication Date | 19800601 |
| Language | English |
| Abstract | Prototype Wayside instrumentation has been designed, developed, and tested that proves the feasibility of measuring braking system effectiveness on moving rail cars. The instrumentation system includes a specially designed short section of instrumented rail and two infrared detectors. The rail section deflects elastically under each passing wheel load, and two orthogonally placed transducers discriminate between rail reaction to braking and to weight. A pair of infrared detectors viewing the rims on both wheels of each axle provide thermal data useful in determining the side to side ratio of total axle braking effort. Together these sensors can generate data to evaluate the braking performance of each wheel. Field tests to evaluate the system were conducted on a commercial rail line and at the U.S. Department of Transportation's Transportation Test Center at Pueblo, CO. Test results showed that the sensors were able to indicate normal and abnormal braking conditions. Also included in the report are a railcar brake system fault and malfunction analysis, structural analysis of the instrumented rail, design analysis of the infrared sensor, detail specifications of the rail and infrared sensors, and recommendations for further system development and testing. |
| Rosap ID | dot:11454 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/11454 |
| TRT Terms | Brakes; Braking performance; Detectors; Equipment; Failure; Fault monitoring; Field tests; Infrared detectors; Instrumentation; Measurement; Monitoring; Performance tests; Railroad cars; Railroad facilities; Transducers |
| Classification | AGR - INFRASTRUCTURE - Railroads; NTL - RAIL TRANSPORTATION - RAIL TRANSPORTATION; NTL - RAIL TRANSPORTATION - Rail Safety |
| Geographical Coverage |
United States |
| Contract Number | DOT-TSC-1323 |
| Report Number | FRA/ORD-80/20; DOT-TSC-FRA-80-8 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/50000/50000/50055/DOT-TSC-FRA-80-08.pdf |
| Format | |
| Database | NTL Digital Repository |