A connection device for star-arrow separation and impact reduction

Abstract

The invention discloses a connecting device capable of reducing impact during satellite-rocket separation. By the adoption of the connecting device, decrement of an impact load passing a connecting interface of a satellite and a rocket during the satellite-rocket separation can be increased, and impact response magnitude on the satellite is reduced. The device is improved based on a traditional satellite-rocket connecting surface, and particularly adopts a disc structure; an initiating explosive device mounting hole, six bolt connecting holes, a release spring and jacking rod jacking hole, and a cushion hole are formed in the disc; the cushion hole is a counter bore, and other holes are through holes; one side, with the cushion hole, of the disc is connected with the satellite, so that the cushion hole changes the impedance of a satellite-rocket connecting plate, and reduces the contact area of the satellite and the carrier rocket. Therefore, when the satellite is separated from the rocket, and impact load is transmitted to the satellite from one side of the carrier rocket through the connecting surface of the satellite and the rocket, reflection and refraction on the connecting interface of the satellite and the rocket during the transmission of shock waves are increased through the auxiliary cushion hole, and the decrement of the impact load is increased.

Description

technical field [0001] The invention relates to a satellite-rocket separation shock-reducing connection device, which is especially suitable for satellites in the form of point connection interfaces. Background technique [0002] The satellite-rocket separation shock is one of the harshest mechanical environments that a satellite needs to experience during launch. At the moment when the satellite and rocket are separated, a large number of high-frequency impact loads will be generated at the moment of explosion of the pyrotechnics, which will produce high-frequency and large-scale transient acceleration responses on the satellite structure. Generally, it can reach tens of thousands of g. The time is a few milliseconds, and the frequency band width reaches tens of thousands or even millions of hertz. It can cause fatal damage to precision electronic equipment with crystal oscillators and brittle materials on spacecraft, resulting in the failure of space missions and even cata...

AI Technical Summary

Problems solved by technology

However, the way of increasing the transmission distance and adding flexible buffer pads cannot meet the requirements of satellite system-level buffer design and connection stiffness

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