Balance point Halo orbit phasing orbit transfer method taking time constraint into consideration

Abstract

The invention discloses a balance point Halo orbit phasing orbit transfer method taking the time constraint into consideration, relates to a Halo orbit phasing orbit transfer method based on an earth-moon three-body dynamic model and belongs to the technical field of aerospace. According to the method, a dynamic equation is established under a restrictive three-body model formed by the earth, the moon and the star, and a Halo orbit near the point L2 is generated under an earth-moon rotation system; the Halo orbit initial phase position of a detector and the phase position difference needing to be changed are determined, and the optimal fuel phasing orbit meeting the phase position constraint condition and the transfer time constraint condition is obtained through an optimization algorithm with the initial anchoring time and transfer time as optimization variables; and the time difference delta t, the task Halo orbit or the upper limit tmax of the transfer time are adjusted according to the task which the detector needs to fulfill, and the orbit shadow detection avoiding task or the spatial intersection detection task of the detector on the Halo orbit is fulfilled. The method can obtain the optimal fuel phasing orbit meeting the phase position constraint condition and the transfer time constraint condition, and has the advantages of good convergence, high flexibility and the like.

Description

technical field [0001] The invention relates to a Halo orbit phase modulation orbit transfer method based on the three-body dynamics model of the Earth and the Moon, which is suitable for adjusting the phase of the Halo orbit at the L2 point of the Earth and the Moon in consideration of time constraints, and belongs to the technical field of aerospace. Background technique [0002] The Earth-Moon Halo orbit is a special type of orbit that exists near the dynamic balance point of the Earth-Moon three-body system. The probes running on the Halo orbit will move around the balance point and maintain a relatively stationary position with the main celestial body. At the same time, using the special dynamic characteristics of the three-body dynamics, the probe can realize the Halo orbit transfer with low energy, and the speed increment required for the probe orbit maintenance is also low. Therefore, the Halo orbit is the best choice for space observation and communication relay. id...

AI Technical Summary

Problems solved by technology

This method can solve the same Halo orbit transfer problem with fixed transfer time, but this method does not give the relationship between orbital phase change and transfer time, and it is difficult to obtain the optimal transfer orbit of fuel

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