An energy absorber wherein a tubular honeycomb member having a conically tapered end is collapsed by an anvil. The anvil has a concavity to accommodate the collapsed conically tapered end of the tubular honeycomb member and compresses the honeycomb energy absorbent member along a wave front which is substantially normal to the direction of honeycomb collapse.
This invention relates to a progressively-acting shock absorber element comprising a structure which encloses cavities, such as honeycombs, tubes, and microspheres, a planar surface on said structure, and a progressively-acting load-introducing means mounted adjacent said surface and adapted to compress said structure upon the application of a load.
A device for simulating railcar shock during coupling of freight cars comprising an inclined ramp, a backboard at the bottom of the ramp, a dolly to roll down the ramp into the backboard, a disposable hollow cylinder to be temporarily attached to the backboard or the dolly to be crushed therebetween when the dolly rolls into the backboard.
To compensate rupture forces in equipment components and structures plastically deformable damping elements having a load capacity that is central as well as inclined to the longitudinal axis thereof, and formed of a material that flows or yields at a predetermined pressure and having a cross-sectional dimension which varies substantially over the entire length thereof, are disposed between respective adjacent structural members.
The launch setback experienced by an ordnance projectile is simulated. A field of water droplets of varying density is placed in the path of the projectile. The momentum exchange between the projectile and the water droplets retards the motion of the projectile in a prescribed way to simulate the initial portion of the launch setback. A mitigator is placed downstream from the field of water droplets and in the path of the projectile. The mitigator retards the motion of the projectile in a prescribed way to simulate the remaining portion of the launch setback.
A shock absorber is described for use in a hostile environment at the end of a blind passage for absorbing impact loads. The shock absorber includes at least one element which occupies the passage and which is comprised of a porous brittle material which is substantially non-degradable in the hostile environment. A void volume is provided in the element to enable the element to absorb a predetermined level of energy upon being crushed due to impact loading.
