| Title | Progress on the Ram Wing Concept with Emphasis on Lateral Dynamics |
|---|---|
| Record ID | 48954 |
| Personal Name Creator |
Barrows, Timothy M. |
| Source | 69p. in various pagings |
| Corporate Creator | John A. Volpe National Transportation Systems Center (U.S.) |
| Corporate Contributor |
United States. Department of Transportation. Federal Railroad Administration |
| Publisher | United States. Department of Transportation. Federal Railroad Administration |
| Publication Date | 19710101 |
| Language | English |
| Abstract | Theoretical and experimental efforts conducted at the Transportation Systems Center in the ram wing program are described. Glide Tests were performed using a simple ram wing model operating in an open rectangular trough 50 ft long. Lift drag ratios of 13 were recorded, and a low-frequency roll oscillation was observed. A theoretical model for a flat-plate airfoil in a rectangular trough of infinite depth is described and compared with existing theories and experimental data. The lateral dynamics of tracked vehicles of this type are reviewed and the most important stability parameters are identified. It is recommended that future research continue to focus on lateral dynamics and that careful experimental measurements be made for the stability derivatives. |
| Rosap ID | dot:10441 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/10441 |
| TRT Terms | Airfoils; Oscillation; Tracked vehicles; Mechanical stability; Lift drag ratio |
| General Subjects | Ram wing model; Lateral dynamics; Glide tests |
| Classification | NTL - RAIL TRANSPORTATION - RAIL TRANSPORTATION; NTL - RAIL TRANSPORTATION - Rail Safety; NTL - SAFETY AND SECURITY - SAFETY AND SECURITY; NTL - SAFETY AND SECURITY - Rail Safety; NTL - SAFETY AND SECURITY - Vehicle Design |
| Geographical Coverage |
United States |
| Report Number | DOT-TSC-FRA-71-7; PB-210 743 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/48000/48900/48954/DOT-TSC-FRA-71-07.pdf |
| Format | |
| Database | NTL Digital Repository |