Dynamic Analysis and Trajectory Planning of the Deployment Process of Cable-driven Loop Mesh Antenna
[Purposes]In order to accurately reduce the impact and energy consumption of the ring mesh antenna deployment process,this paper proposes a planning strategy for the antenna deployment process based on dynamic analysis.[Methods]Firstly,the Bezier function was used to fit the storage process of the driving cable,and the input trajectory of the driving cable was obtained;Secondly,the Lagrange method,Bushing force method,and equivalent force method were used to establish a dynamic model of an antenna system with a rope pulley.The influence of driving cable flexibility and cable mesh force on the antenna deployment process was analyzed through simulation;Finally,a dynamic surrogate model of the antenna system was constructed using a neural network model,and the optimal input trajectory of the driving cable was obtained through multi island genetic algorithm optimization.[Findings]The optimiza-tion results show the antenna deployment process planning strategy based on dynamic analysis can effec-tively reduce the peak value of antenna deployment angular acceleration and power peak under the con-dition of ensuring the accuracy of the proxy model.[Conclusions]In summary,the antenna deployment process planning strategy based on dynamic analysis proposed in this article further improves the reliabil-ity of antenna deployment and has certain engineering reference significance.
loop mesh antennaskinetic analysissurrogate modeldeployment process planning
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