Multi-node flexible connection method for small astrophysical detectors

Abstract

The invention discloses a multi-node flexible connection method for a small astronomical body detector, which belongs to the field of aerospace. The realization method of the present invention is: acquiring scene information, including the gravitational acceleration of the asteroid, the number of nodes, the initial velocity and the position of the nodes. The flexible mechanism is equivalent to a spring with damping, considering the weak gravitational continuous collision of the nodes in the attachment process, an instantaneous collision model is established based on the restitution coefficient method, and the node velocity value after the collision is obtained, and the multi-node motion is generated through the multi-node coupling motion model of the detector trajectory to obtain the stable attachment time and node attachment error of the multi-node network. Delete the disconnected network by traversing all nodes in the network, and calculate the correlation index of the remaining network. According to the average stable attachment time and the average maximum attachment error of the multi-node network under different network indices, the evaluation function of the multi-node connection network is established, and the corresponding multi-node flexible connection method is established through the minimum evaluation function value to realize the multi-node flexibility of the small astronomical body detector connect.

Description

technical field [0001] The invention relates to a multi-node flexible connection method for a small celestial body detector, belonging to the technical field of aerospace. Background technique [0002] With the continuous strengthening of human deep space exploration technology, the international research on small celestial bodies has gradually increased, and the detection of small celestial bodies has gradually become a hot spot in solar system space exploration. Since the beginning of the 21st century, with the rapid development of aerospace technology, various aerospace powers have carried out a series of deep space exploration activities, and people have gradually begun to pay attention to a large number of unknown small celestial bodies. In the past 30 years, NASA, Japan and ESA have all proposed and implemented small celestial body detection plans. Among them, the United States has carried out the largest number and various forms of small celestial body detection missi...

AI Technical Summary

Problems solved by technology

For multi-node networks, there are a large number of configurations. Without considering the mutual influence of flexible connections, it is a complex task to find a connection method that can dissipate energy in a short time and make the error between the actual location of the node and the target location smaller. The problem

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