基于非线性能量阱的小卫星飞轮微振动抑制  

Microvibration Suppression of Flywheels Based on Nonlinear Energy Sink for Optical Satellites

作　　者：蒋权 鄢吉多[1] 林芸[1] JIANG Quan;YAN Jiduo;LIN Yun(Mechanical Engineering Inistitute,Guiyang Univsersity,Guiyang Guizhou 550005,China)

机构地区：[1]贵阳学院机械工程学院,贵州贵阳550005

出　　处：《机床与液压》2021年第12期33-40,共8页Machine Tool & Hydraulics

基　　金：贵州省普通高等学校青年科技人才成长项目(黔教合KY字[2020]073)。

摘　　要：研究基于橡胶材料迟滞阻尼特性的非线性能量阱对光学卫星飞轮微振动的抑制。通过对飞轮扰动机制的分析,建立考虑飞轮扰动的动力学模型。结合飞轮微振动模型,提出一种基于非线性能量阱的飞轮微振动抑制方法,设计一种基于非线性能量阱的金属橡胶减振器。设计卫星飞轮地面试验方案,验证了微振动抑制方法的有效性。试验结果表明:飞轮微振动模型分析准确,设计合理,基于该模型的减振器能有效抑制飞轮微振动。The microvibration suppression of flywheels for integrated optical satellites was investigated by a nonlinear energy sink(NES)based on the hysteresis damping characteristics of rubber.A dynamic model considering flywheel disturbances was established by analyzing the flywheel disturbance mechanism.Then,a method for suppressing the microvibrations of flywheels based on an NES was proposed.Combined with the flywheel microvibration model,a suitable form and parameters of the NES were proposed,and a metal rubber vibration absorber based on the NES was designed.Finally,a ground test scheme was designed for the satellite flywheel to verify the microvibration suppression method.The experimental results show that the analysis of the flywheel microvibration model is accurate,the design of the NES is reasonable,and the vibration absorber based on the NES can effectively suppress the flywheel microvibrations.

关 键 词：微振动抑制方法 非线性能量阱 光学卫星 飞轮 

分 类 号：TH113.1[机械工程—机械设计及理论]