飞轮壳体黏弹性阻尼环的仿真分析与试验研究
Simulation analysis and experimental study of viscoelastic damping ring of flywheel housing
金富蕴 1王永锋 2王虹 3刘珊珊 4马艳红1
作者信息
- 1. 北京航空航天大学航空发动机研究院,北京 100191
- 2. 北京航空航天大学能源与动力工程学院,北京 100191
- 3. 北京控制工程研究所精密转动和传动机构长寿命技术北京市重点实验室,北京 100094
- 4. 西安飞行自动控制研究所导航系统部,西安 710076
- 折叠
摘要
随着航天器平台性能指标要求的提高,飞轮微振动对航天器平台的影响越加突出,需要对其进行振动抑制.根据飞轮上壳体的模态特性,提出一种圆环形黏弹性阻尼环结构的设计方法,并针对黏弹性阻尼环的敷设位置、厚度、宽度对其减振效果影响规律进行数值仿真与试验验证,验证圆环形黏弹性阻尼环的有效性.结果表明:圆环形黏弹性阻尼环结构对宽频振动具有良好的减振效果,黏弹性阻尼环的敷设位置对飞轮系统的各阶固有频率变化和减振效果起决定性作用,在飞轮外径的 60%处敷设圆环形黏弹性阻尼环减振效果较好,宽度设计为飞轮外径的 6%以内、厚度设计为壳体厚度的4倍以内时,随着宽度、厚度的增加,减振效果提高.
Abstract
As the requirements for performance indicators of spacecraft platforms increase,the influence of micro-vibrations generated by flywheels on spacecraft platforms is becoming increasingly prominent and needs to be suppressed.Based on the modal characteristics of the upper housing of the flywheel,a design method of circular viscoelastic damping ring structure was proposed,and numerical simulations and experiments were carried out to verify the damping effects of the viscoelastic damping ring in terms of the position,thickness,and width and verify the validity of circular viscoelastic damping ring.The results show that the circular viscoelastic damping ring structure has a good damping effect on broadband vibration,and the position of the viscoelastic damping ring plays a decisive role in the change of the inherent frequency of the flywheel system and the damping effect.The damping effect is better when a circular viscoelastic damping ring is applied at 60%of the outer diameter of the flywheel.When the width is designed to be within 6%of the outer diameter of the flywheel,and the thickness is designed to be within 4 times the thickness of the housing,the damping effect increases with the increase in width and thickness.
关键词
飞轮系统/黏弹性阻尼环/薄壳结构/多参数分析/振动抑制/宽频减振Key words
flywheel system/viscoelastic damping layer/thin-housing structure/multi-parameter analysis/vibration suppression/broadband vibration damping引用本文复制引用
出版年
2025
国家科技期刊平台
NSTL
维普
万方数据