ACTA AERONAUTICAET ASTRONAUTICA SINICA >
Electromagnetic damping buffering characteristics of aster-oid probe upon encountering obstructions
Received date: 2022-07-08
Revised date: 2022-09-05
Accepted date: 2022-10-24
Online published: 2022-11-04
Supported by
National Natural Science Foundation of China(51975139)
Landing buffer is the basis for in-situ exploration of asteroids. The unknown surface morphology of asteroids could easily lead to overturn of the probe upon encountering obstacles during the landing process. It is therefore necessary to investigate the electromagnetic damping buffering characteristics in the obstruction encountering process. First， we establish a co-simulation model of landing buffering dynamics coupling mechanics and control， and calibrate the collision contact parameters with the neural network. Based on the established simulation model， the influence of tangential landing speed， normal landing speed， probe yaw angle， and landing inclination on the landing process is theoretically studied， and the effect of yaw angles on different landing buffer stages is explored. The main influencing factors and their influence on the overturning due to obstacle encounter are analyzed. Finally， landing buffer experiments are performed on the microgravity simulation asteroid landing buffer experimental platform to study the influence of the initial landing parameters and the landing medium on the landing buffer process， verifying the established simulation model. The error between the simulation landing buffer time and the experimental results is smaller than 15%， demonstrating the accuracy of the established simulation model.
Tingzhang WANG , Qiquan QUAN , Xin AI , Dewei TANG , Zongquan DENG . Electromagnetic damping buffering characteristics of aster-oid probe upon encountering obstructions[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2023 , 44(13) : 227783 -227783 . DOI: 10.7527/S1000-6893.2022.27783
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