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Design and Testing of a Novel Passive Isolator for a Space Optical Payload

Journal of Harbin Institute of technology(New series) 2018年第2期25卷 85-96页

作者： Jianfeng Yang Chuangmian Huang Yuanhang Wang Kai Li The Fifth electronic Institute of Ministry of Industry and information technology guangdong province research center of electronic information products reliability and environment engineering technology guangdong Provincial Key Laboratory of electronic information products reliability technology Guangzhou province Key Laboratory of electronic information products reliability and environment engineering technology

Vibration isolation system(VIS) is usually applied to improve the pointing capability and resolution of a space optical payload. A novel vibration isolator is introduced. The equivalent stiffness model of the isolator is derived by analyzing its static characteristics. A VIS based on the bipod configuration is developed. Its dynamic model is derived and verified using the finite element method and experiments. Because this isolator contains viscoelastic material,which makes the frequency responsive analysis more difficult,an efficiency analysis approach based on the complex stiffness of viscoelastic material is proposed to calculate the transmissibility of the isolator. Finally,a prototype of the vibration isolator is manufactured and experimental studies are carried out. The experimental results show that the analytical results are in good correspondence with the experimental data and the isolator can effectively attenuate the vibrations for the optical payloads.

关键词： isolator viscoelastic material space optical payload

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Journal of Harbin Institute of technology(New Series) 2018年第2期25卷 85-96页

作者： Jianfeng Yang Chuangmian Huang Yuanhang Wang Kai Li The Fifth electronic Institute of Ministry of Industry and information technology Guangzhou 510610China guangdong province research center of electronic information products reliability and environment engineering technology Guangzhou 510610China guangdong Provincial Key Laboratory of electronic information products reliability technology Guangzhou 510610China Guangzhou province Key Laboratory of electronic information products reliability and environment engineering technology Guangzhou 510610China

Vibration isolation system(VIS)is usually applied to improve the pointing capability and resolution of a space optical payload.A novel vibration isolator is *** equivalent stiffness model of the isolator is derived by analyzing its static characteristics.A VIS based on the bipod configuration is *** dynamic model is derived and verified using the finite element method and *** this isolator contains viscoelastic material’which makes the frequency responsive analysis more difficult’an efficiency analysis approach based on the complex stiffness of viscoelastic material is proposed to calculate the transmissibility of the ***’a prototype of the vibration isolator is manufactured and experimental studies are carried *** experimental results show that the analytical results are in good correspondence with the experimental data and the isolator can effectively attenuate the vibrations for the optical ***：isolator;viscoelastic material；space optical

关键词： isolator viscoelastic material space optical payload

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