A flexible pipeline of thrust vector adjustment mechanism of electric propulsion system

Abstract

The invention relates to a flexible pipeline of an electric propulsion system thrust vector adjustment mechanism. According to the flexible pipeline, a flow passage is composed of capillary pipes. The flexible pipe comprises two straight sections, two small-diameter transition spiral sections, one large-diameter spiral section, a spherical head and an outer sleeve nut. The large-diameter spiral section can achieve large-angle flexible deformation with small additional moment, the small-diameter transition spiral sections have a transition function, enable the straight sections to be led out along the central axis of the large-diameter spiral section and can reduce transverse displacement in the process of flexible deformation. Each set of pipelines comprise three independent capillary pipes which are arranged in the shape of a Chinese character 'pin' and are compressed through a heat-shrinkable T bush, structural stability is guaranteed, and the capillary pipes are prevented from being damaged. The spherical head is connected with the capillary pipes in a fuse welding mode, so that connecting strength is improved. The flexible pipeline of the electric propulsion system thrust vector adjustment mechanism achieves flexibility of a satellite propulsion system pipeline, obviously reduces the deformation additional moment of the pipeline and well meets the requirement for satellite electric propulsion system thrust vector adjustment.

Description

technical field [0001] The invention relates to a flexible pipeline structure for conveying fluid, in particular to a flexible pipeline structure suitable for thrust vector adjustment of a satellite electric propulsion system. Background technique [0002] The specific impulse of the electric propulsion system is much higher than that of the traditional chemical propulsion system. It is a satellite propulsion technology that has been vigorously promoted at home and abroad in recent years. Especially on large geostationary orbit satellites, the electric propulsion system has a tendency to gradually replace the chemical propulsion system. my country is also currently developing a new generation of geostationary orbit satellite platforms using electric propulsion systems. [0003] The electric propulsion system requires that the thrust direction of the electric thruster, that is, the thrust vector, can be continuously adjusted as the center of mass of the satellite changes. Si...

AI Technical Summary

Problems solved by technology

After retrieving domestic and foreign literature, no relevant reports on the flexible pipeline of the thrust vector adjustment mechanism of the satellite electric propulsion system have been found in China. Although there are products with similar functions in foreign countries, the detailed information has not been published, and its shape and structure cannot meet the needs of my country's ongoing research and development. Requirements for Vector Adjustment Mechanism of Satellite Electric Propulsion System

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