摘要: |
As part of the Federal Railroad Administration's Equipment Safety Research Program, a series of full-scale impact tests are being conducted on rail passenger vehicles. Four types of tests are intended to define the performance of current-design equipment in in-line collisions and grade crossing collisions: In-Line Tests: (1) A single-car impact with a fixed wall; (2) A two-car impact with a fixed wall; (3) A moving cab-car-led train impact with a standing locomotive-led train Grade-Crossing Test, and (4) A single-car impact with a steel coil. The in-line tests are designed to first measure the crashworthiness of a single car, then the interactions of two cars when coupled, and finally the behavior of a complete train. The grade crossing test is designed to measure the crashworthiness of a single car when a steel coil collides with the corner of the lead end of a cab-car. Conventional and improved-crashworthiness equipment are being tested in all four test conditions. While the principal objective of the in-line tests is to determine effective strategies for improved structural crashworthiness and improved occupant protection, a secondary objective is to validate and improve the computer models that have been developed as part of the rail vehicle crashworthiness research. |