Optimization Design of Homing Trajectory of Parafoil System with Five Segments

doi:10.3969/j.issn.1000-1093.2020.05.022

Abstract

Abstract: The parafoil homing trajectory should be processed and optimized in segments in order to realize the accurate airdrop and easy drop-down control during homing. A high precision 9-degree-of-freedom dynamic model of parafoil system is established. A five-segment homing trajectory optimization model is established, in which the minimum energy consumption is taken as the objective function and the time consumption and turning radius are taken as the input variables. The optimal reference path of homing is given by using the five-segment homing trajectory as the initial condition and using the pseudo-spectral method to optimize the trajectory, and the energy losses in the five-segment homing and direct homing processes are compared and analyzed. The simulated results show that the five-segment homing trajectory optimization strategy proposed in this paper has the advantage of simple control function form and easy application. Key

Key words: parafoilprecisiondropsystem, multi-bodysystemdynamics, trajectoryoptimization, homingstrategy

CLC Number:

V211.3

GAO Feng, GUO Rui, FENG Zhiwei, JIE Jinliang, ZHANG Qingbin. Optimization Design of Homing Trajectory of Parafoil System with Five Segments[J]. Acta Armamentarii, 2020, 41(5): 1025-1033.

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第41卷第5期2020 年5月
兵工学报ACTA ARMAMENTARII
Vol.41No.5May2020

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