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Alternative TitleAnalytical model of micro vibration fluid viscous damper under medium and high frequency excitation
焦小磊; 马文来; 赵阳; 李思梁
Source Publication中国科学:技术科学
Indexed ByEI ; CSCD
EI Accession number20181905170587
Contribution Rank2
Funding Organization国家重点基础研究发展计划(“973”计划)(批准号: 2013CB733004)资助项目
Keyword微振动 流体阻尼器 可压缩性 黏性损失 中高频 解析模型
Other AbstractMicro vibration is produced by CMG (control moment gyroscope) in the satellite, which has disadvantage for high precision payload. With consideration of compressibility of fluid and viscosity loss in the damping orifice, dynamic model of fluid viscous damper under medium and high frequency excitation is proposed. Based on this model, analytical solution of output force in the time domain is obtained. After that, dynamic characteristics of damper for different values of diameter, length, viscosity, amplitude are analyzed. The results reveal that output force can be divided into transient force, damping force, elastic force. Transient force decays with time quickly, damping force dissipates energy, elastic force provides stiffness. The values of stiffness coefficient and damping coefficient are decided by diameter, length, viscosity. Amplitude has no influence on the stiffness and damping.
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Document Type期刊论文
Corresponding Author赵阳
Recommended Citation
GB/T 7714
焦小磊,马文来,赵阳,等. 中高频激励下微振动流体阻尼器解析模型[J]. 中国科学:技术科学,2017,47(12):1273-1285.
APA 焦小磊,马文来,赵阳,&李思梁.(2017).中高频激励下微振动流体阻尼器解析模型.中国科学:技术科学,47(12),1273-1285.
MLA 焦小磊,et al."中高频激励下微振动流体阻尼器解析模型".中国科学:技术科学 47.12(2017):1273-1285.
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