| Title | The Application of Quasi-Linearization Techniques to Rail Vehicle Dynamic Analyses |
|---|---|
| Record ID | 48722 |
| Personal Name Creator |
Hedrick, J. Karl; Cooperrider, N. K.; Law, E. H. |
| Source | 228p. in various pagings |
| Corporate Creator | Massachusetts Institute of Technology; Arizona State University; Clemson University |
| Corporate Contributor |
John A. Volpe National Transportation Systems Center (U.S.); United States. Department of Transportation. Federal Railroad Administration |
| Publisher | United States. Department of Transportation. Federal Railroad Administration |
| Publication Date | 19781101 |
| Language | English |
| Abstract | The objective of the work reported here was to define methods for applying the describing function technique to realistic models of nonlinear rail cars. The describing function method offers a compromise between the accuracy of nonlinear digital simulation and the computational efficiency of linear methods. This work entailed the development of realistic describing function representations for nonlinearities such as the wheel/rail contact interaction and the development of algorithms for using these describing functions to predict the occurrence and stability of hunting and the forced response of rail vehicles to sinusoidal and statistical track irregularities. This report explains the describing function technique, demonstrates how it can be applied to nonlinear rail vehicle dynamics problems, describes algorithms that can be used for such problems, and presents results for typical nonlinear problems, including wheel profile and suspension nonlinearities. |
| Rosap ID | dot:10221 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/10221 |
| TRT Terms | Vehicle dynamics; Train track dynamics; Hunting (Dynamics); Suspension systems; Defects; Dynamic tests; Railroad tracks; Mathematical models; Trucks; Freight cars |
| General Subjects | Dynamic analysis |
| Classification | AGR - INFRASTRUCTURE - Railroads; NTL - SAFETY AND SECURITY - Rail Safety; NTL - RAIL TRANSPORTATION - Rail Safety |
| Geographical Coverage |
United States |
| TRIS Online Accession No |
188677 |
| Contract Number | DOT-TSC-902 |
| Report Number | DOT-TSC-FRA-78-6; FRA/ORD-78/56 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/48000/48700/48722/DOT-TSC-FRA-78-6.pdf |
| Format | |
| Database | NTL Digital Repository |