Peristaltic expansion ring type energy dissipation and seismic reduction device

Abstract

The invention discloses a peristaltic expansion ring type energy dissipation and seismic reduction device. The device comprises variable-cross-section expansion rings which are arranged at the two ends and provided with circular ring connectors, and a plurality of variable-cross-section expansion rings which are arranged in the middle, separated from one another and symmetrically distributed, wherein the inner attaching face of each expansion ring is wrapped with a layer of polytetrafluoroethylene pad, and self-resetting hydraulic pumps are arranged on the two sides of the interior of each expansion ring; and one double-cone-head symmetrical cone is arranged between every two adjacent expansion rings, the expansion rings are connected together through cones and connecting rods and providedwith corresponding limiting rods and limiting grooves, and therefore peristaltic force transmission of the whole device under the action of earthquakes and wind is guaranteed. According to the device, the deformation of the expansion rings is controlled within an elastic range, so that sustainable utilization of the expansion rings is guaranteed, and consumables are reduced; and the correspondingself-resetting mechanisms are provided so that wind acting force and large, medium and small earthquakes can be effectively resisted.

Description

technical field [0001] The invention relates to a peristaltic expansion ring type energy dissipation and shock absorption device, which belongs to the field of energy dissipation and shock absorption in the field of machinery and construction. Background technique [0002] Return and landing are the key technologies of manned spaceflight, and also the ultimate sign of success or failure of manned spaceflight missions. When the return capsule lands on land, the steady descent speed with a parachute is generally 6m / s-8m / s. If the return capsule lands directly at a stable speed decelerated by the parachute, it will still generate a large impact overload and cause damage to the astronauts. In order to ensure the safety of the astronauts under various emergency return and landing conditions of the return capsule, it is necessary to comprehensively adopt various landing buffer devices on the return capsule according to the redundant design concept to ensure that the entire system...

AI Technical Summary

Problems solved by technology

If the return capsule lands directly at a stable speed decelerated by the parachute, it will still generate a large impact overload and cause damage to the astronauts

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