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Collision Safety Comparison of Conventional and Crash Energy Management Passenger Rail Car Designs.
| 题名： | Collision Safety Comparison of Conventional and Crash Energy Management Passenger Rail Car Designs. |
| 作者： | Severson-K.J.; Tyrell-D.C.; Perlman-A.B. |
| 关键词： | *Crash-energy-management; *Passenger-rail-cars; *Rail-car-design; *Collision-dynamics.;Crush-zones; Impact-tests; Equipment-tests; Occupation-protection. |
| 摘要： | In conjunction with full-scale equipment tests, collision dynamics models of passenger rail cars have been developed to investigate the benefits provided by incorporating energy-absorbing crush zones at the ends of the cars. In a collision, the majority of the structural damage is generally focused at the point of impact for cars of conventional design. In contrast, cars with crush zones, or crash energy management (CEM), can better preserve occupied areas by distributing crush to the ends of cars. Impact tests of conventional equipment have already been conducted, which consisted of a single car and two coupled cars colliding with a rigid wall. Corresponding tests are planned using CEM equipment. This paper presents preliminary predictions of the one- and two-car CEM tests, and compares them to the results of the respective conventional equipment tests. The comparison will focus on loss of occupant volume, secondary impact velocity (SIV), and lateral buckling, as measures of occupant protection. |
| 报告类型： | 科技报告 |
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