| 摘要 |
Crash attenuator for protecting a truck or stationary structure from damage resulting from impact of an object including a frame mountable to the structure, a bumper having an impact-receiving face adapted to receive an impact from the object, a movable displacement structure interposed between the frame and bumper and having a first position in which the bumper is relatively distant from the frame and a second position in which the bumper is relatively proximate to the frame, and an energy dissipation system coupled to the displacement structure for dissipating impact energy of the object received by the bumper which causes the displacement structure to be moved from the first position toward the second position. The energy dissipation system includes one or more deformable members which deform upon movement of the displacement structure from the first position toward the second position with such deformation causing dissipation of impact energy.
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