| Title | Validation of a 70-ton Higher Speed Freight Truck Design: Phase II |
|---|---|
| Record ID | 69323 |
| Personal Name Creator |
Singh, Som P.; Brabb, David C.; Prabhakaran, Anand |
| Corporate Creator | Sharma & Associates, Inc. |
| Corporate Contributor |
United States. Department of Transportation. Federal Railroad Administration. Office of Railroad Policy and Development; United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development and Technology |
| Publisher | United States. Department of Transportation. Federal Railroad Administration |
| Publication Date | 20200300 |
| Language | English |
| Abstract | Previously, Phase I of this project demonstrated viable market potential and operating economics for high speed freight service, and established that the higher speed truck (HST) prototype design is capable of meeting the dynamic and structural requirements expected in higher speed freight operations. In Phase II, the design was evaluated through full-scale track testing per the track-worthiness requirements defined in the Association of American Railroads’ (AAR) Manual of Standards and Recommended Practices (MSRP), Section D, Specification M-976 and those proposed in the Federal Railroad Administration’s (FRA) Technical Report published August 2015, “Validation of A 70-Ton Higher Speed Freight Truck Design for Operations of up to 125 Mph—Higher Speed Freight Truck Vehicle Dynamics Analysis.” The results confirm that the design successfully meets all dynamic performance criteria specified including high speed stability (hunting) up to 106.5 mph, which was the maximum achievable speed with the available locomotive. |
| Rosap ID | dot:44156 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/44156 |
| TRT Terms | Coefficient of friction; High speed vehicles; Locomotives; Freight cars; Load tests; Rolling stock; Performance based specifications; Simulation; Train track dynamics; Vehicle dynamics; Vehicle performance; Prototype tests |
| General Subjects | Accelerations; carbody; higher speed truck; HST; lateral over vertical; L/V ratio; lateral load; minimum vertical wheel load; revenue service track; strain-gauges; track class; wheel unloading; prototype |
| Geographical Coverage |
United States |
| TRIS Online Accession No |
1735136 |
| Contract Number | BAA-2010-1; DTFR53-13-C-00046 |
| Report Number | DOT/FRA/ORD-20/13 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/69000/69300/69323/DOT-FRA-ORD-20-13_20200312.pdf |
| Format | |
| Database | NTL Digital Repository |