上海航天（中英文）2023，Vol.40Issue(6)：1-10,10.DOI:10.19328/j.cnki.2096-8655.2023.06.001
驱动模式和转速对某星载天线扰动特性的影响
Effects of Driving Model and Rotational Speed on Disturbance Characteristics of Spaceborne Antenna
杨可 1陈薄 1贾清健 2古忠涛1
作者信息
- 1. 西南科技大学 制造科学与工程学院 制造过程测试技术教育部重点实验室,四川 绵阳 621010
- 2. 西安空间无线电技术研究所,陕西 西安 710100
- 折叠
摘要
Abstract
The micro-vibration generated during the attitude adjustment to a spaceborne antenna has a great effect on the pointing accuracy and stability of the spacecraft.Therefore,the analysis and design for the micro-vibration has become an important part of the high-precision spacecraft design.Based on the ANSYS software and ADAMS software,a dynamic analysis model for the flexible multi-body system of an antenna is established.The disturbance force and torque of the antenna under typical driving conditions are analyzed.The reliability of the dynamic analysis method is verified by the ground micro-vibration physical tests.Based on the dynamic analysis model of the antenna flexible multi-body system,the effects of the driving mode and rotational speed on the disturbance force and torque of the antenna are discussed.The results show that the main amplitudes of the disturbance force and torque are concentrated in the low frequency range from 0 Hz to 50 Hz,and the driving mode and rotational speed have no obvious influence on the disturbance frequency of the antenna structure but have effects on the amplitudes of the disturbance force and torque.In the single-axis driving mode,when the driving rotational speed is 0.2 °/s,the disturbance of the antenna is the most severe.In the XY dual-axis driving mode,the antenna disturbance caused by the X-and Y-axis rotation units has a certain degree of superposition,the disturbance of the antenna structure is more severe,and the changes in the disturbance force and torque are more complicated.The present work can provide technical support for the formulation of micro-vibration suppression strategies for spaceborne antennas.关键词
星载天线/微振动/驱动模式/驱动转速/扰动力/扰动力矩Key words
spaceborne antenna/micro-vibration/driving mode/driving rotational speed/disturbance force/disturbance torque分类
航空航天引用本文复制引用
杨可,陈薄,贾清健,古忠涛..驱动模式和转速对某星载天线扰动特性的影响[J].上海航天（中英文）,2023,40(6):1-10,10.
