A One-stage Umbrella Control Recovery Track Planning Method Based on Beetle Swarm Algorithm

Abstract

The invention provides a first-level parachute control recovery trajectory planning method based on the beetle swarm algorithm, establishes a simplified particle model for system trajectory planning, establishes the geometric relationship of the corresponding trajectory, and establishes The multi-objective function constraints of the first-level homing track meet the first-level drop point accuracy to constrain the energy loss of the homing process system, and increase the optimization of the number of circles in the circling stage in the process of multi-objective optimization , the particle swarm optimization algorithm (BSO) based on beetle's beetle search is introduced into the first-level recovery trajectory planning. The invention establishes a simplified system track planning particle model, which is simple to calculate and easy to implement in engineering. After ensuring the first-level drop point accuracy, the energy loss of the homing process system is constrained, and the first-level recovery track planning is accelerated. The convergence speed and convergence stability of parameter optimization can improve the solution accuracy of the optimal parameters, so that the energy loss can be minimized while the first stage is recovered accurately.

Description

technical field [0001] The invention relates to the technical field of spacecraft recovery track planning, in particular to a recovery track planning method. Background technique [0002] At a time when countries are competing with each other in science and technology, the development of my country's aerospace industry has achieved very remarkable results, and its space launch activities and launch frequency rank among the top in the world. However, the non-autonomous control of the landing area of ​​the detached body wreckage usually has great safety hazards, which will cause a large waste of manpower and material resources, and the frequency and flexibility of space launch activities will also be subject to many restrictions, which cannot meet future Low-cost and flexible launch requirements for rockets. These put forward new requirements for the drop point control technology of the launch vehicle separation body. Considering that the recovery system needs to have a cert...

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Problems solved by technology

[0003] The above design only considers the possibility of an incomplete circle in the circling stage. For the case of high-altitude redundancy, it is based on the design of the lower altitude. For the first-level track after the altitude is lowered, the first-level landing is guaranteed. point accuracy, but the problem of excessive energy loss in the parafoil system has not been solved well, and further improvement is needed to enable the first stage to recover accurately while reducing system energy loss

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