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Supervised by Ministry of Industry and Information Technology of The People's Republic of China Sponsored by Harbin Institute of Technology Editor-in-chief Yu Zhou ISSNISSN 1005-9113 CNCN 23-1378/T

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Related citation:Jianfeng Yang,Chuangmian Huang,Yuanhang Wang,Kai Li.Design and Testing of a Novel Passive Isolator for a Space Optical Payload[J].Journal of Harbin Institute Of Technology(New Series),2018,25(2):85-96.DOI:10.11916/j.issn.1005-9113.16143.
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Design and Testing of a Novel Passive Isolator for a Space Optical Payload
Author NameAffiliation
Jianfeng Yang The Fifth Electronic Institute of Ministry of Industry and Information Technology, Guangzhou 510610, China
Guangdong Province Research Center of Electronic Information Products Reliability and Environment Engineering Technology, Guangzhou 510610, China
Guangdong Provincial Key Laboratory of Electronic Information Products Reliability Technology, Guangzhou 510610, China 
Chuangmian Huang The Fifth Electronic Institute of Ministry of Industry and Information Technology, Guangzhou 510610, China
Guangdong Province Research Center of Electronic Information Products Reliability and Environment Engineering Technology, Guangzhou 510610, China
Guangzhou Province Key Laboratory of Electronic Information Products Reliability and Environment Engineering Technology, Guangzhou 510610, China 
Yuanhang Wang The Fifth Electronic Institute of Ministry of Industry and Information Technology, Guangzhou 510610, China
Guangdong Provincial Key Laboratory of Electronic Information Products Reliability Technology, Guangzhou 510610, China
Guangzhou Province Key Laboratory of Electronic Information Products Reliability and Environment Engineering Technology, Guangzhou 510610, China 
Kai Li The Fifth Electronic Institute of Ministry of Industry and Information Technology, Guangzhou 510610, China
Guangdong Province Research Center of Electronic Information Products Reliability and Environment Engineering Technology, Guangzhou 510610, China
Guangzhou Province Key Laboratory of Electronic Information Products Reliability and Environment Engineering Technology, Guangzhou 510610, China 
Abstract:
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.
Key words:  isolator  viscoelastic material  space optical payload
DOI:10.11916/j.issn.1005-9113.16143
Clc Number:O328
Document Code::A
Fund:
Descriptions in Chinese:
  

一种用于空间光学载荷隔振的被动式隔振器设计与测试

杨剑锋1,2,3,黄创绵1,2,4,王远航1,3,4,李锴1,2,4

(1.工业和信息化部电子第五研究所,广州 510610;

2. 广东省电子信息产品可靠性与环境工程技术中心,广州 510610;

3. 广东省电子信息产品可靠性技术重点实验室,广州510610;

4. 广州电子信息产品可靠性与环境工程重点实验室,广州510610)

创新点说明:

本文提出了一种构型新颖的用于空间光学载荷隔振的隔振器,该隔振器具有结构简单、环境适应性强、隔振效果好等优点。通过对其静态特性进行分析,推导得到隔振器的等效刚度模型,考虑到粘弹性阻尼材料其阻尼系数随激励频率和环境温度变化的特点,给出一种基于复刚度模型的分析方法。最后,设计、加工出了一套隔振系统的原理研究,并对其静态性能及隔振性能进行了测试试验。试验结果表明:本文提出的用于粘弹性阻尼材料动力学分析的分析方法有效,计算值与测试结果具有较好的一致性,设计的隔振器可以有效降低传递给光学载荷的振动。

研究目的:

设计一种适用于空间光学载荷在轨隔振的隔振器,并给出其隔振性能的分析方法。

研究方法:

复刚度理论、有限单元法;

试验仪器:HF-10型数显式拉亚测试机,气浮平台,力锤,频谱分析仪。

结果:

静刚度分析值与测试值的最误差大4.21%,最小误差为0.02%,模态分析计算值与测试结果几乎一致,隔振性能分析低频段分析值与测试结果吻合度较好,但高频段出现一定偏差。

结论:

本文设计的隔振器隔振性能较好,能适应不同空间光学载荷的隔振需求,文中提出的用于粘弹性阻尼材料动力学分析的分析方法准确、有效,适用于被动式粘弹性材料隔振器的隔振性能分析。

关键词:隔振器;粘弹性材料; 空间光学载荷

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